1924 APCM Plant Schedule

Arlesey

Registered Capacity :— 1100 T/week (1924)

Raw Materials :—

• Marl

Tenure of Property :—

• Works, houses, cottages and certain land (about 56 acres): freehold
• Other land (about 67 acres): leasehold, lease expiring 29/09/1961
• "Spoil" land at Knebworth (about 1 acre): leasehold, lease expiring 25/03/1945

Rent of Property :—

• Surface rent: £117/4/2
• Shooting rent: £2/6/0
• Dead rent: £109/17/7
• "Spoil" land: £20/15/0

Royalties :—

• 3d per ton of chalk, marl or clay gotten over amount allowed free in respect of dead rent
• Tonnage free in respect of dead rent: 8791 tons

Loading Facilities :—

• Road and rail

Nearest Station & Railway :—

• Three Counties, LNER (GNR section)

Siding :—

• The main siding, about 800' long, 2 roads, extends the whole length of the works on the west side and adjoins the LNER. In the first road, i.e. the one nearest the works, trucks containing boiler and rotary coal, gypsum and sacks are placed for unloading.
  The outer road is used solely for cement loading: the cement is wheeled to the tracks over planks placed from the dock to the trucks. There is another siding running to the back of the works as far as the washmill. This siding is used for unloading quarry coal, all materials for the rotary kilns, timber and the loading of sacks from the stores.

Raw Material Getting :—

• The raw material is a marl, the mix being adjusted by getting from different levels. The material is picked up by steam navvies, and put into 1-yard trucks, which are hauled in trains of 26 wagons by a rope haulage system a distance of about a mile into the works.

Uncallowing :—

• A certain amount of uncallowing is necessary, the depth of top soil being about 18" to 2'.

Outside Plant :—

• 2 Ruston 12-ton steam diggers with 2-yard buckets
• 1 steam haulage winch

Raw Material Preparation :—

• One roughing washmill, 9.2 sq.ft. screening area, 50 H.P. @ 16 rpm, output 28 tons per hour
• One screening washmill, 56 sq.ft. screening area, 60 H.P. @ 22 rpm, output 28 tons per hour
• One haulage gear
• Two sets of 3-throw pumps
• One APCM sun & planet mixer: driving motor 11 H.P. in centre, 66' diameter × 11' deep, capacity 1,100 tons. Situation: on the south side of the rotary kilns and distance about 170'

Cement Kilns :—

• Two rotary kilns by Pollitt & Wigzell, 132'10" long. Burning zone 20' × 9'0", lined 9" bricks, tapered both ends. Slurry end 35' × 8'0", lined 3" concrete, Remainder 6'5" diameter, lined 4½" bricks.

Cubic capacity	4355 cu. ft.
Output	75 cwt/hr
Output per 1000 cu. ft.	17.2 cwt/hr
Surface inside lining	2690 sq. ft.
Output per 1000 sq. ft.	27.9 cwt/hr
Coal consumption as rec'd	35.4%
Coal consumption standard	29.6%

Coal Plants :—

• APCM rotary dryer. 30' × 4'10½" inside diameter. Coal fired, heating external and internal, output 2½ tons per hour from 8% to 1 % H₂O
• One Krupp tube mill, 26'0" × 4'10" inside diameter, 80 H.P. @ 26 rpm, output 2½ tons per hour, fineness 25% on 180#
• Two powdered coal hoppers each holding 16 tons, or about 10 hours' supply

Cement Grinding Plant :—

• One Krupp No.8 ball mill, 7'0" × 4'0" long, lined C.S. plates, charge 2½ tons steel balls, 51 H.P. @ 26 rpm, output 4 tons per hour to 48% on 180#
• Two Johnsons ball mills 4'6" × 3'10" long lined C.S. plates, charge 1½ tons steel balls, 26 H.P. @ 24 rpm, output 2 tons per hour to 46% on 180#
• Two Krupp tube mills 4'10" × 26'0" lined C.I. plates, charge 9 tons C.I. pellets, 130 H.P. @ 26 rpm, output 4 tons per hour to 7% on 180#
• One APCM combination mill, 4'11" × 20'0", lined manganese steel plates in ball section, C.I. plates remainder, charge 1½ tons steel balls and 6 tons C.I. pellets, 100 H.P. @ 28 rpm, output 2.3 tons per hour to 4% on 180#

Cement Storage & Loading :—

Flat-bottomed Stores

• Maximum Capacity 3500 T
• Working Capacity 3000 T
• Hand packing

There are 3 blocks of warehouses, containing 10 separate bins, the doors of which face the loading siding and are within a few feet of it. The loading dock is not covered. Two of the above bins also have openings on the works side to enable lorries to be loaded direct. The maximum quantity that can be loaded in the working week of 48 hours is 1600 tons. All shunting is done by the railway company at fixed times, viz. mid-day and 4:30 pm.

Gas, Oil and Steam Engines, Boilers & Producers :—

• 1 Bellis steam engine driving Dry Mill side. HP bore 12", LP bore 19", stroke 9", 435 rpm. Jet condenser & Bellis air pumps, rope driven. Main drive by ropes. Vacuum 20". Last indication 220 I.H.P.
• 2 Bellis steam engines in power house. HP bore 10", LP bore 17", stroke 9", 435 rpm. Jet condenser & Edwards air pumps, motor driven. Vacuum about 21" Ledwards Ejector as standby. Engines direct coupled to 120 kW Westinghouse generators 250 volts
• 1 Pollit & Wigzell tandem compound steam engine and condenser with Corliss valve gear. Main drive by ropes. HP bore 15 9/16", LP bore 28 9/16", stroke 48", vacuum about 23", 72 rpm. Last indication 420 I.H.P. This engine drives washmills & 2 ball and 1 tube mill
• 3 Lancs boilers, two by Danks, one by Oldham Boiler Co., 8'6" diameter × 32', fitted with Bennis sprinkler stokers, working pressure 135 psi, blow-off 140 psi. Bolton Superheaters, superheat 120°F. Boiler evaporation at full load approximately 17,000 lb/hr
• Green economiser, 192 tubes
• 2 Weir boiler feed pumps
• Water softeners, APCM and United Water Softener

Cooperage :—

• Nil

Sacks :—

• The average stock carried is about 100,000 including customers' sacks. The sacks are unloaded and sorted in a lean-to shed on the main dock facing the railway and either taken direct to the loaders or wheeled to the chamber kiln arches which are used as stores and are situated at the back of the works.

Fitters' Plant :—

• 2 Lathes
• 2 Drilling machines
• 1 Shaping machine
• 1 Sawing machine
• 1 Screwing machine
• 1 Punching and shearing machine
• 1 Portable electric drill
• 1 Overhead hand travelling crane
• 4 Fitters' benches with vices

Water :—

• The main supply is from a well on the works, bored to a depth of about 180' and delivers about 9,000 gallons per hour. The water is pumped to the required points by a set of 10½" × 20" treble bucket pumps. A further supply of water is obtained from the quarries and the quantity is dependent upon the rainfall. It is pumped from the quarries to a cooling tank at the south end of the works and is used for washing and washmill engine.

Bevans including London Portland & Robins

Registered Capacity :— 5750 T/week (1924)

Raw Materials :—

• Bevans: Freehold chalk, Swanscombe clay
• London Portland: Leasehold chalk, Swanscombe clay

Tenure of Property :—

• Bevans: all freehold
• London Portland: all leasehold
• Robins: Part freehold, part leasehold

Rent of Property :—

• Bevans: nil
• London Portland: £650 per annum. £97/10/0, increasing £3 p.a.
• Robins: £610

Royalties :—

• Bevans: nil
• London Portland: minimum £600 per annum
• Robins: nil

Loading Facilities :—

• Bevans: 2 tidal s/s berths up to about 700 T, 6 tidal barge berths
• London Portland: 1 tidal s/s berth up to about 700 T, 3 tidal barge berths
• Robins: 1 s/s berth up to about 600 T, 2 tidal barge berths
• Inconvenient for lorries

Nearest Station & Railway :—

• Northfleet, S.E. section, Southern Railway

Siding :—

• nil
• Permanent way:
• Bevans: 6 miles 2'8" gauge
• London Portland: 2 miles 4'8½" gauge
• Robins:1 mile 2'8" gauge

Raw Material Getting :—

• 1 18-ton Ruston navvy chalk getting
• 1 20-ton Ruston navvy chalk getting - London Portland

Uncallowing :—

• 1 12-ton Ruston navvy

Outside Plant :—

At Bevans, coal is unloaded ex-barge by:

• 1 Electric Telpher & grab
• 1 5-ton steam Grafton crane & grab

and is delivered by belt conveyors to storage bins from which belts and elevators deliver to 2 dryers

Other Bevans plant include:

• 1 5-ton Grafton wharf crane
• 1 5-ton Stothert & Pitt wharf crane
• 2 3-ton Grafton wharf cranes
• 6 Locos, 2'8" gauge, cylinder 8½" diameter × 16" stroke
• 1 Loco, 4'8½" gauge, cylinder 10" diameter × 15" stroke, on hire ex New Globe
• 234 2-ton capacity chalk wagons
• 60 wagons for various uses

At Robins:

• 1 1½-ton wharf crane
• 21 rail wagons, various uses

At London Portland:

• 1 1-ton crane (Brickfield wharf)
• 2 Direct coupled locos, 4'8½" gauge
• 83 3-ton chalk wagons
• 12 rail wagons, various uses

Raw Material Preparation :—

The clay is dug and washed in Swanscombe Park as described under Swanscombe Works; is pumped to Bevans and delivered to:

• 1 Intermediate clay mixer, 24' diameter from which:
• 2 sets of 12" 3-throw pumps deliver to:
• 1 66' standard mixer for Bevans washmills
• 1 24' diameter W.I. tank at London Portland washmills
• All electrically driven

London Portland washmill consists of:

• 1 Clay measuring tank
• 1 Preliminary washmill 16' diameter
• 1 Intermediate washmill 16' diameter
• 6 Screening mills 4'6" diameter
• 2 sets of 8" 3-throw pumps not now used and:
• 1 Elevator delivers to:
• 1 66' standard mixer from which:
• 1 set of 12" 3-throw pumps deliver to Bevans mixers
• Driven electrically from Bevans power station by 200 H.P. motor

Bevans No.1 wetmill consists of:

• 2 Chalk haulage gears
• 2 Clay measuring tanks
• 3 Preliminary washmills, 18' diameter (one out of use)
• 3 Intermediate washmills, 18' diameter
• 1 Finishing washmill, 23' diameter
• 1 Finishing washmill, 19' diameter
• Flint grit extracting and washing plant
• 1 3-ton Grafton crane with grab for mill cleaning
• 2 sets of electrically driven 12" 3-throw pumps deliver to the mixers

Bevans No.4 wetmill consists of:

• 1 Chalk haulage gear
• 1 Clay measuring tank
• 2 Preliminary washmills 17' diameter
• 2 Intermediate washmills 17' diameter
• 2 Finishing washmills 17' diameter
• 1 set of 12" 3-throw pumps deliver to mixers (transferred to Swanscombe)
• 4 sets of 8" 3-throw pumps deliver to the spoon feeds at the rotary kilns
• 5 66' standard mixers

Cement Kilns & Coal Mills :—

• No data provided; at the time of the report, the twelve early kilns had been removed, and the installation of the four new kilns had not yet commenced.

Cement Grinding Plant :—

Bevans had four sets of mills, numbered 1-4, each consisting of:

• 2 Krupp No.8 ball mills
• 2 Krupp tube mills, 26' × 5', charged with pebbles
• 1 Cooling mill, 16' × 4'

At London Portland, clinker is brought by 2-ton horse-drawn trucks from Bevans, delivered on to a belt conveyor and elevated to hoppers over:

• 4 Krupp No.6 ball mills
• 2 Krupp tube mills, 26' × 5', charged with pellets
• 1 Cooling mill, 16' × 4'

At Robins, clinker is brought by loco-hauled hopper wagons from Bevans, and elevated to hoppers over:

• 2 Krupp No.8 ball mills
• 2 Krupp 2-compartment tube mills, 26' × 5', charged with pellets and pebbles
• 1 Cooling mill, 16' × 4'

Cement Storage & Loading :—

1 Bates packer with drag scraper

Form of storage not mentioned, but it was all warehouses divided into bins

Gas, Oil and Steam Engines, Boilers & Producers :—

Bevans No.1 wetmill:

• 1 350 H.P. vertical compound condensing steam engine by Pollit & Wigzell
• 2 Galloway boilers 22' × 7', 130 psi
• 1 Lancs boiler 22' × 7', 130 psi
• Fitted with superheaters and 96 pipe economiser. These boilers also supply steam to No.4 wetmill engine

Bevans No.4 wetmill:

• 1 150 H.P. compound condensing steam engine by Ormerod Greerson
• Steam from No.1 wetmill boilers

Bevans main power station:

• 1 1200 kW Fraser & Chalmers turbo-generator, 365 volts AC, with a converter to 500 volts DC
• 4 300 kW Bellis & Morcom engines direct coupled to Westinghouse generating sets
• 1 Humphrey gas driven pump for condensing water
• 5 dryback marine boilers 15' × 9' at 170 psi, with superheaters and 288 pipe economiser, also Erith mechanical stokers & forced draught

Bevans 1,2,3 & 4 cement grinding mills

• 4 340 H.P. Galloway compound condensing steam engines
• 4 Lancs boilers 30' × 8' at 130 psi, fitted with superheaters and 256 pipe economiser, for mills 1 & 2
• 2 Lancs boilers 30' × 8'2" at 90 psi, fitted with induced draught superheaters, for mills 3 & 4
• 1 Galloway boiler 30' × 8'6" at 90 psi, fitted with induced draught superheater, for mills 3 & 4
• 1 192-tube economiser for above two.

London Portland cement grinding mill

• 1 500 H.P. 4-cylinder Premier gas engine with an exhaust gas boiler 9' × 4' @ 100 psi
• 2 Open hearth gas producers

Robins cement grinding mill

• 1 440 H.P. steam engine by Ormerod & Greerson
• 2 Galloway boilers 25' × 8' at 100 psi, fitted with 96 pipe economiser

Cooperage

• 50 H.P. Marshall portable engine fired by waste wood (upper cooperage)
• 30 H.P. Ransome engine fired by waste wood (lower cooperage)
• 18 H.P. Hayward Tyler horizontal non-condensing steam engine with a Lancs boiler 30' × 8' at 80 psi and superheater (heading shop)

Cooperage :—

Drum Plant: 1 complete plant, principal machines being:

• 3 Shearing machines
• 1 Body corrugating machine
• 2 Head pressing machines
• 2 Spot welding machines
• 1 Beading machine
• 1 Drum seaming machine
• 1 Set of rolls
• Electrically driven from main power station

Cooperages:

• 6 Stave jointing machines
• 6 Stave tongue & groove machines
• 2 Crozer & printing machines attached to dryers
• 9 Magnetic bells
• 5 Trussing machines without bells
• 4 Head tongue & groove machines
• 5 Head turning machines
• 1 Head printing machine
• 4 Hoop punching machines
• 7 Hoop splaying machines
• 7 Hoop rivetting machines
• 6 Sets standard 3-throw pumps

Sacks :—

• missing

Fitters' Plant :—

Bevans:

• 1 9" centre screw cutting gap lathe (old)
• 1 10" centre screw cutting gap lathe
• 1 Planing machine, 4' stroke
• 1 Shaping machine, 12" stroke
• 1 Screwing machine, up to 3" pipe
• 3 Power pillar drilling machines
• 1 Machine saw
• 1 Band saw
• Power supplied through 10 H.P. Bruce Peebles motor from main power station
• 1 Power pillar drilling machine
• 1 Portable acetylene welding plant
• 1 Portable electric welding plant
• 2 Smiths' hearths
• 1 7" treadle wood turning machine

Robins:

• 1 8" centre gap lathe (obsolete)
• 1 Power pillar drilling machine
• 1 cross-cut saw bench
• 1 Horizontal emery grinder (old)
• Power supplied through 10 H.P. Bruce Peebles motor from main power station

London Portland:

• 1 8" centre screw cutting gap lathe
• 1 Power pillar drilling machine
• 1 Hand drilling machine
• Power supplied through 5 H.P. motor from main power station
• 2 Smiths' hearths

Water :—

• supply not stated
• There is one central plant supplying softened water for all purposes

Borstal

Registered Capacity :— 400 T/week (1920)

Raw Materials :—

• Local leasehold chalk
• Medway clay

Tenure of Property :—

• Works freehold
• Chalk quarry leasehold

Rent of Property :—

• £42

Royalties :—

• £250 minimum
• 3d per ton chalk after
• 6f per yard sand, gravel & flint

Loading Facilities :—

• 2 Tidal berths

Nearest Station & Railway :—

• Rochester, S.E. section, Southern Railway

Siding :—

• Nil

Raw Material Getting :—

• missing

Uncallowing :—

• missing

Outside Plant :—

• 1 wire rope haulage for Decauville wagons to washmill in chalk quarry
• 1 5-ton Grafton crane with grab for unloading clay, coke, coal, etc on wharf

Raw Material Preparation :—

• 1 Preliminary washmill, 16' diameter for chalk and clay
• 1 Finishing washmill, 14' diameter

The slurry runs by gravity to:

• 1 Mixer 14' diameter × 12' deep and is then elevated to:
• 1 Mixer 24' diameter × 10' deep
• 1 Set of 10" 2-throw pumps delivers slurry to kilns

Cement Kilns :—

• 14 chamber kilns

Cement Grinding Plant :—

• 1 Set of jaw crushers deliver through elevators to hoppers over:
• 3 Neates Dynamic grinding mills with sieves
• 1 Smidth tube 16' × 4' charged with pellets

Cement Storage & Loading :—

• The form of storage is not mentioned, but it was a flat-bottomed warehouse.
• Maximum Capacity 2300 T
• Working Capacity 1500 T

Gas, Oil and Steam Engines, Boilers & Producers :—

All the above plant is driven by:

• 1 300 H.P. vertical compound condensing engine by Earles of Hull
• 2 Lancs boilers 30' × 7' at 100 psi
• 1 10/12 H.P. vertical single cylinder non-condensing engine runs the repair shop and supplies light

Cooperage :—

• Nil

Sacks :—

• not mentioned

Fitters' Plant :—

• 1 Lathe, 8½" centres, 8' between centres
• 1 Pillar drilling machine, 1'6" centres
• 1 14" power hacksaw
• 1 Grindstone 3'2" × 6"
• 1 Portable forge, new (never been used), 3' × 3'8" diameter bellows
• Power driven by shafting from main engine
• Auxiliary power: 1 Robey vertical steam engine (No.18568)

Water :—

• not mentioned

Brooks

Registered Capacity :— 2000 T/week (1920)

Raw Materials :—

• Leasehold chalk
• Medway clay

Tenure of Property :—

• Leasehold
• Part of quarry freehold

Rent of Property :—

• £2,691 per annum

Royalties :—

• 3d per cubic yard of chalk, flints, loam & sand
• 4d per cubic yard of gravel
• 1/- per cubic yard of brick earth or clay
• 1/9 per 1000 bricks & drain pipes manufactured

Loading Facilities :—

• 1 s/s to 600 tons, tidal
• 8 barge berths, tidal

Nearest Station & Railway :—

• Grays, Tilbury section, LMS

Siding :—

• Grays Chalk Co. private siding into Brooks Works
• Permanent way: 5½ miles 4'8½" gauge

Raw Material Getting :—

• 1 12-ton Ruston navvy

Uncallowing :—

• not stated

Outside Plant :—

• 4 direct coupled locos with 10" cylinders, 4'8½" gauge
• 1 direct coupled locos with 12" cylinders, 4'8½" gauge
• 2 7-ton Grafton cranes
• 1 5-ton Grafton crane
• 100 chalk wagons, 3 tons capacity
• 19 clay wagons, 3 tons capacity

Raw Material Preparation :—

• 2 preliminary washmills, 18' diameter, for chalk and clay
• 1 intermediate washmill, 25' diameter
• 1 screening mill, 21' diameter
• 2 screening mill, 18' diameter
• Automatic grit extracting & washing plant
• 1 set of 12" 3-throw pumps
• 1 standard 66' mixer electrically driven (stirrer gear removed to Kent Works)
• 2 sets of 12" 3-throw pumps electrically driven deliver to the kilns

Cement Kilns :—

• 49 chamber kilns

Cement Grinding Plant :—

No.2 Mill

• 1 set of jaw crushers
• 1 Krupp No.8 ball mill
• 2 Krupp tube mills 16' × 4' charged with pebbles

No.3 Mill

• 1 Clinker lift
• 1 Set of jaw crushers
• 2 Krupp No.8 ball mills
• 2 Smidth tube mills 16' × 4' charged with pellets
• 1 Krupp tube mill 26' × 5' charged with pellets

Flint crushing

• There is also a small flint crushing plant

Cement Storage & Loading :—

• The form of storage is not mentioned, but it was flat-bottomed warehouses.
• Maximum Capacity 13,950 T
• Working Capacity 10,950 T

Gas, Oil and Steam Engines, Boilers & Producers :—

Wet Mill

• 1 250 H.P. Adamson horizontal tandem condensing steam engine
• 3 Lancs boilers 28' × 7'6" at 125 psi fitted with induced draught

No.2 grinding mill

• 1 220 H.P. twin cylinder National gas engine with 38 kW generator 250 volts DC
• 1 National suction plant disused, gas being obtained ex No.3 mill

No.3 grinding mill

• 1 500 H.P. 4-cylinder Premier gas engine with exhaust gas boiler 9' × 3'6" at 100 psi
• 3 Open hearth suction producer plants

General power

• 1 75 H.P. Marshall compound non condensing steam engine
• 1 Galloway boiler 24' × 7' at 95 psi pressure in bad condition with a 96-pipe economiser

Cooperage

• 60 H.P. Tangye vertical steam engine with steam obtained from wetmill boilers

Cooperage :—

• 1 Stave jointing machine
• 1 Stave tongue & groove machine
• 1 Crozing machine
• 1 Stave printing machine attached to drying oven
• 6 Trussing machines: bells have been transferred to other works
• 1 Head tongue & groove machine
• 2 Head turning machines
• 2 Splaying machines
• 3 Rivetting machines
• 1 Set 2-throw hydraulic pumps
• 1 Set 4-throw hydraulic pumps

Sacks :—

• not mentioned

Fitters' Plant :—

• 4 Smiths hearths, brick built
• 1 Old type pillar drilling machine: T. Berry & Son
• 1 4'6" radial drilling machine: Selson Engineering Co.
• 1 Shaping machine 1'6" stroke
• 1 Power screwing machine up to 3" pipe or 1½" bolts
• 1 Lathe 16½" centres, bed 16'0"
• 1 Lathe 12½" centres, bed 9'0"
• 1 Lathe 7½" centres, bed 6'0"
• 1 Lathe 7½" centres, bed 10'0"
• 1 Power emery wheel for 12" wheel
• 1 Set plate bending rolls (rolls 4'4" wide)
• 1 Power grinding machine
• 1 Portable electric drilling machine, driven by 30 H.P. motor
• 1 Milling attachment for lathes
• 1 Sensitive drilling machine
• 1 Screwing machine for bolts only
• 1 Punching & shearing machine to shear up to ¼"
• 1 Circular saw bench to take 3'6" saw; table 6'0" × 3'0" × 2'6"
• 1 Mortising & drilling machine

Water :—

• Pumping station to supply water for factory is in the quarry electrically driven, with a 15-H.P. Tangye oil engine as a standby

Burham

Registered Capacity :— 4600 T/week clinker, 2400 T/week Portland cement (1924)

Raw Materials :—

• Freehold chalk
• Own clay

Tenure of Property :—

• All freehold

Rent of Property :—

• Nil

Royalties :—

• Nil

Loading Facilities :—

• Portland cement: 9 tidal barge berths on the creek
• Clinker: 2 tidal barge berths on the creek
• Chalk & Clay: 3 tidal barge berths on main river

Nearest Station & Railway :—

• Aylesford, S.E.section, Southern Railway

Siding :—

• No siding
• Permanent way:
  • 7 miles of 4'8½" gauge
  • ¾ miles of 4'0" gauge

Raw Material Getting :—

• 2 20-ton Ruston Navvies - chalk getting
• 1 10-ton Whittaker Navvy - clay getting

Uncallowing :—

• 1 10-ton Ruston Navvy

Outside Plant :—

• 3 5-ton Grafton cranes
• 2 2-ton Stothert & Pitt cranes
• 5 Manning Wardle locos
• 80 7½ yd wagons for chalk and clay
• 35 wagons of various sizes and types for other purposes

Raw Material Preparation :—

• 1 7½ yd wagon tippler
• 1 set of 11'10" × 2'2" roller crushers
• 1 Preliminary washmill, 18'6" diameter
• 4 Screening mills, 16' diameter
• 3 sets of 12" 3-throw pumps deliver slurry to:
• 4 standard 66' mixers
• 2 sets of 12" 3-throw pumps deliver slurry to rotary kilns through the usual spoon feeds and 1 set of 12" 3-throw pumps to chamber kilns.

Cement Kilns :—

• No.1 202' × 10' and 8'6" with cooler 82' × 7'6" and 6'5"
• Nos.2 & 3 202' × 8'9" with cooler 82' × 7'6" and 6'5"
• No.4 202' × 10' and 9'0" with cooler 82' × 8'6" and 6'5"

The plant declined to submit the standard kiln performance data

• The coolers, one of which is fitted with a modified form of forced draught, are open ended, and discharge into:
• A Marcus conveyor delivering into:
• 3 silos of 1000 tons capacity each
• All the kiln plant is electrically driven
• 2 Schneider kilns
• 10 Batchelor kilns
• 6 Plate kilns

Coal Plants :—

The coal is discharged ex barge by crane and grab and passed through:

• 1 set of 3 roll crushers and then by conveyor belts to a 1000 ton silo and into:
• 2 dryers
  • No.1 63' × 5'6" with internal tube 2'6" diameter
  • No.2 64' × 6'0" with internal tube 2'6" diameter
• 11 30" Griffin mills, motor driven
• The usual screws, fans and feeding arrangements deliver to the kilns
• All the coal plant is electrically driven

Cement Grinding Plant :—

No.1 Mill:

• 2 Krupp No.8 ball mills
• 2 Krupp 26' × 5' tube mills, charged with pellets
• 1 Cooling tube 16' × 4'

No.2 Mill:

• 1 set of jaw crushers (for chamber clinker)
• 2 Krupp No.8 ball mills
• 2 Krupp 26' × 5' tube mills, charged with pellets
• 1 Cooling tube 16' × 4'

Cement Storage & Loading :—

• The form of storage is not mentioned, but it was flat-bottomed warehouses, divided into bins.
• Maximum Capacity 21,920 T
• Working Capacity 14,850 T

Gas, Oil and Steam Engines, Boilers & Producers :—

No.1 Mill:

• 1 600 H.P. Hick Hargreaves compound condensing steam engine
• This engine also drives an electric generator of 150 kW for general purposes
• 3 Lancs Boilers, 30' × 7'6", 125 psi, with economiser of 160 pipes

No.2 Mill:

• 1 500 H.P. Hick Hargreaves compound condensing steam engine
• 3 Lancs Boilers, 30' × 7'6", 100 psi, with economiser of 128 pipes

General:

• 5 250 H.P. 4-cylinder Premier gas engines direct coupled to:
• 5 200 kW electric generators (3 by Dick Kerr, 2 by Phoenix), 500 volts DC
• 5 Suction bituminous producer plants

Washmill:

• 1 600 H.P. Hick Hargreaves compound condensing steam engine
• 3 Lancs Boilers, 30' × 7'6", 125 psi, with economiser of 128 pipes

Cooperage :—

• 3 Jointing machines
• 3 Stave tongue and groove machines
• 2 Crozer & printing machines attached to drying ovens
• 8 Magnetic Bells
• 2 Head tongue and groove machines
• 4 Head turning machines
• 1 Head printing machines
• 3 Punching machines
• 4 Splaying machines
• 4 Rivetting machines
• 4 Standard sets hydraulic pumps
• All electrically driven
• No Mather & Platt sprinkler installation

Sacks :—

• not mentioned

Fitters' Plant :—

• 5 Smiths hearths
• 1 Portable forge, 3'0" square
• 1 Portable forge, 1'6" square
• 2 Pillar drilling machines
• 1 3'6" Radial drilling machine
• 1 Shaping machine, 1'5" stroke
• 1 Planing machine 6'4" stroke
• 1 Power screwing machine up to 3" pipes
• 1 Face plate lathe to swing 7'0" diameter
• 1 Screw-cutting lathe, 7" centres, swing 2'6"/li>
• 1 Screw-cutting lathe, 10" centres, swing 8'5"/li>
• 1 Screw-cutting lathe, 9¼" centres, swing 8'0"/li>
• 1 Screw-cutting lathe, 7½" centres, swing 4'10"/li>

  (The latter three being rather ancient)

• 1 Non-screw cutting lathe 17½" centres, swing 6'0", length 20ft
• 1 Power emery wheel
• 1 Power hacksaw
• 1 Pneumatic hammer 7 cwt
• 1 Set plate bending rolls 6'0" wide (hand power)
• 1 Portable electrical grinding machine
• 1 Cutter grinding machine
• 1 Bench grinding machine
• 1 Milling machine (horizontal)
• 1 Portable electrical drilling machine to drill ⅝" holes
• 1 Portable electrical drilling machine to drill 1" holes
• 1 Geared electric drilling machine
• 1 Shearing machine for 1" plate
• 1 Slotting machine, 13" stroke
• 1 Portable acetylane welding plant
• 1 Portable electric welding plant

Power supplied through three motors from main power station:

• 1 25 H.P. for forge & slotting machine
• 1 12 H.P. for fitting shop
• 1 10 H.P. for fitting shop extension

Carpenters:

• 1 Bandsaw frame, table 2'0" square with saw blades up 1" wide
• 1 Wood turning lathe, swing 15" and 3'0" length of bed
• 1 Mortising and boring machine, to mortise and bore up to 1½"
• 1 Circular saw bench to take saws 3'6" diameter
• 1 Circular saw bench to take saws 3'3" diameter
• 1 Circular saw gulleting machine
• 2 Grindstones
• Power supplied by 15 H.P. motor from main power station

Water :—

• not mentioned

Burham Lime

Registered Capacity :— ?

Lime Kilns :—

• 24 Flare kilns: disused and some in very bad repair

Cliffe

Registered Capacity :— 700 T/week (1920)

Raw Materials :—

• Freehold chalk
• Freehold clay

Tenure of Property :—

• Works freehold
• Higham clay land freehold
• Cottages & land at wharf leasehold

Rent of Property :—

• £8 per annum

Royalties :—

• Nil

Loading Facilities :—

• 1 s/s tidal berth up to about 600 T
• 4 tidal barge berths

Nearest Station & Railway :—

• Cliffe, Port Victoria branch, Southern Railway

Siding :—

• Nil
• Permanent way: 6¾ miles of 3'8½" gauge

Outside Plant :—

• 4 Aveling & Porter gear driven locos
• 1 5-ton Grafton crane with grab
• 39 Chalk wagons to hold 2 yards
• 23 Coke wagons to hold 3 yards

Raw Material Preparation :—

Clay pit:

• 1 windmill pump for keeping water down
• 1 small Pulsometer pump with 8' × 3'3" vertical boiler at 60 psi as spare
• 1 wire rope haulage gear to washmill

Wet mill:

• 1 Preliminary washmill 18' diameter
• 1 Intermediate washmill 18' diameter
• 2 Finishing mills 16' diameter
• 1 Elevator and 1 Set of 8" 3-throw pumps as spare deliver slurry to:
• 1 Mixer 40' × 10'
• 1 Set of 12" 3-throw slurry pumps deliver to kilns

Cement Kilns :—

• 34 Chamber kilns

Cement Grinding Plant :—

• Clinker is delivered by hand trollies to 1 pair jaw crushers and elevated to hoppers over:
• 3 Collis mills
• 1 Krupp tube mill 26' × 5' charged with pebbles

Cement Storage & Loading :—

• The form of storage is not mentioned, but it was flat-bottomed warehouses.
• Maximum Capacity 5,000 T
• Working Capacity 3,000 T

Gas, Oil and Steam Engines, Boilers & Producers :—

Cement grinding mill

• 1 300 H.P. Hick Hargreaves horizontal compound condensing steam engine
• 2 Lancashire boilers 30' × 7'6" at 120 psi with an economiser of 128 pipes

Wet mill

• 1 200 H.P. Hick Hargreaves horizontal single cylinder condensing steam engine with steam supplied from grinding mill boilers

Repair shop & electric light

• 1 20 H.P. Ruston oil engine

Cooperage :—

• not mentioned

Sacks :—

• not mentioned

Fitters' Plant :—

• 1 lathe 8¾" × 8'0" plain bed
• 1 Lathe 9¾" × 12'0" gap bed
• 1 No. 4 improved hacksaw machine for 17" blades
• 1 9½" Stroke single table shaping machine
• 1 4' Radial drilling machine
• 1 Horizontal steam engine 12" stroke
• 1 Planing machine, table 2' × 6'
• 1 screwing machine up to 2"
• 1 6 H.P. motor and switchboard

Water :—

• not mentioned

Cliffe Whiting

Registered Capacity :— ?

Raw Material Preparation :—

• 2 Washmills 13'9" diameter

Grinding Plant :—

• 1 Breaking machine 10" diameter with grinding machine
• 1 Bolting machine (now being transferred to Swanscombe)

Gas, Oil and Steam Engines, Boilers & Producers :—

• 1 34 H.P. "U" type Crossley gas engine with enclosed suction gas producer plant
• 1 30 H.P. Blackstone oil engine

Crown & Quarry

Registered Capacity :— 2200 T/week (1924)

Raw Materials :—

• Leasehold chalk
• Medway clay

Tenure of Property :—

• Frindsbury: leasehold
• Wouldham chalk quarry: leasehold

Rent of Property :—

• Frindsbury: £1562
• Wouldham: £398/17/0

Royalties :—

• Frindsbury: £866/13/4 minimum with 4d per 22½ tons of chalk & flints after minimum
• Wouldham: 2d per ton of chalk dug (no minimum)

Loading Facilities :—

• Tingey & Crown: 1 s/s tidal berth up to about 1,000 tons, water 14 to 19 ft
• 11 tidal barge berths
• Beaver: 1 s/s berth up to about 800 tons, water 11 to 16 ft

Nearest Station & Railway :—

• Strood, S.E. Section, Southern Railway

Siding :—

• Nil
• Permanent way: 1¼ miles of 4'8½" gauge

Raw Material Getting :—

• 1 5-ton Grafton crane for chalk getting

Uncallowing :—

• 1 5-ton Jessop crane & grab for uncallowing

Outside Plant :—

• 1 Bates packer, with drag scraper
• 2 geared type locos
• 3-5 ton Grafton cranes (exclusive of quarry)
• 64 chalk wagons of 3-ton capacity

Raw Material Preparation :—

• 1 Set of 4'9" × 2'0" roller crushers, with flint picking conveyor
• 1 preliminary chalk washmill 16' diameter
• 1 finishing chalk washmill 16' diameter
• 1 screening mill in which clay is added, 16' diameter
• 1 finishing mill 13' diameter
• 1 set of 12" 3-throw slurry pumps deliver to:
• 1 standard 66 ft. mixer
• 1 set of 12" 3-throw slurry pumps deliver to chamber kilns

Cement Kilns :—

• 33 Intermittent chamber kilns

Cement Grinding Plant :—

Beaver Mill:

• 1 set of jaw crushers and an elevator deliver to a hopper of 30 tons
• 3 Collis mills followed by:
• 1 Krupp tube mill 26' × 5' charged with pellets

Tingey Mill (grinding Burham surplus clinker):

• 5 No.8 Krupp ball mills
• 5 Krupp tube mills 26' × 5', 3 charged with pellets and 2 with pebbles
• 2 Cooling tubes 16' × 4'

Cement Storage & Loading :—

• The form of storage is not mentioned, but it was flat-bottomed warehouses.

Storage Capacity T	maximum	working
Tingey	8,620	7,000
Quarry	15,800	11,330
Beaver	9,130	5,450

Gas, Oil and Steam Engines, Boilers & Producers :—

Wet Mill:

• 1 325 H.P. 4-cylinder Premier gas engine (this power unit is on site but not erected, the motor formerly driving this plant having been removed to Kent branch)
• 1 Open hearth suction producer plant

Beaver Mill:

• 1 350 H.P. Pollit & Wigzell compound condensing steam engine
• 2 Lancashire boilers 28' × 7'6" at 120 psi fitted with induced draught and 96 pipe economiser

Tingey Mill:

• 1 1200 H.P. Ashton Frost vertical compound condensing steam engine
• 1 130 kW Bruce Peebles generator 250 volts DC
• 1 50 H.P. steam engine and generator of 38 kW used an auxiliary
• 4 Lancashire boilers 30' × 8' at 125 psi, each fitted with superheaters and 320 pipe economiser

Cooperage:

• 1 30 H.P. Semi-portable steam engine fired by wood chips
• 1 Vertical boiler 7'9" × 3'6" fired by wood chips

Cooperage :—

• 3 Stave jointing machines
• 3 Stave tongue & groove machines
• 1 Crozer & printer attached to drying oven
• 5 Magnetic bells
• 1 Head tongue & groove machine
• 2 Head turning machines
• 1 Head printing machine
• 2 Punching machine
• 2 Splaying machine
• 3 Rivetting machine
• 2 Standard set of pumps with 2 accumulators

Sacks :—

• not mentioned

Fitters' Plant :—

• 3 Smiths' hearths
• 1 Pillar drilling machine
• 1 4 ft. Radial drilling machine
• 1 Shaping machine 16" stroke
• 1 Planing machine 2' × 2' × 4'
• 1 Power emery wheel
• 1 S.S.S. Lathe, 7½" centres, 4'8" between centres to swing 2'5"
• 1 S.S.S. Lathe, 8½" centres, 3'9" between centres to swing 2'4"
• 1 S.S.S. Lathe, 8⅝" centres, 4'6" between centres to swing 2'9"
• 1 S.S. Lathe, 10½" centres, 13'0" between centres to swing 3'0"
• 1 S.S. Lathe, 12" packed up to 22" centres, 14'6" between centres will swing packed up to 5'6" S.S.S.
• 1 Power screwing machine up to 3" pipe
• 1 Milling machine
• 2 Portable electric drills
• 1 Acetylene welding plant
• 1 3 cwt. belt driven power hammer
• 1 Set plate bending rolls 4 ft. wide
• 1 Power hacksaw 17" saw
• 1 Power hacksaw 14" saw
• 1 Power grindstone 3'6" × 8"
• 1 Power shears & punching machine for ⅜" plate 10" wide
• 1 Hand shears up to ¼" plate
• 1 Power milling tool cutter grinder
• 1 Circular saw
• 1 Band saw
• 1 Mortising machine

NOTE S.S.S. denotes sliding, surfacing & screw cutting: S.S. denotes sliding & screw cutting.

Power supplied from main power station to 10 H.P. motor for shop and 10 H.P. motor for power hammer & 10 H.P. for saws. Auxiliary power supplied from Petters 5 H.P. semi diesel engine to same motors.

Water :—

• not mentioned

Drinagh

Registered Capacity :— 120 T/week (1924)

Raw Materials :—

• Freehold limestone
• Local shale by purchase

Tenure of Property :—

• Freehold

Rent of Property :—

• Nil

Royalties :—

• Nil

Loading Facilities :—

• Siding only used
• Small wharf for open lighters of 20-30 tons

Nearest Station & Railway :—

• Wexford South, Great Southern and Western Railway

Siding :—

• Own private siding into works

Raw Material Getting :—

• 1 Inclined haulage 100 yards long with a motor driven winch
• 1 windmill pump 60 ft. high
• 1 motor driven drum pump
• 1 motor driven centrifugal pump
• 1 steam driven pump

Uncallowing :—

• not mentioned

Outside Plant :—

• 6 wagons for limestone 2 tons capacity
• 1 5 ton Electric derrick crane for hoisting limestone ex quarry - this has not yet been used and is to work in conjunction with a forced draught lime kiln

Raw Material Preparation :—

• Limestone is taken by horse-drawn trucks to:
• 4 continuous vertical lime kilns where lime is added to shale and passed through:
• 1 set of jaw crushers, elevated to a hopper over:
• 2 pairs 4'6" millstones
• 2 Askham separators
• 2 circulating silos of 80 tons each and then by screw conveyor to a hopper with feed gear delivering to:

Cement Kilns :—

• 1 rotary kiln 67' × 6' and 5'

The plant declined to submit the standard kiln performance data: it was probably at a standstill.

• 1 open ended cooler 31' × 3'

Coal Plants :—

• 1 Bettington Pulverizer

Cement Grinding Plant :—

• The clinker is elevated from the cooler delivering to:
• 1 hopper with plate feed gear to:
• 1 Krupp No. 6 ball mill and elevated to a hopper of 20 tons capacity over:
• 1 Krupp tube mill 16' × 4' charged with pellets

Cement Storage & Loading :—

• Maximum Capacity 900 T
• Working Capacity 800 T
• The nature of the store was not stated, but it was a flat warehouse.

Gas, Oil and Steam Engines, Boilers & Producers :—

Cement Plant

• 1 240 H.P. Victor Coates compound condensing steam engine
• 1 40 H.P. Robey steam engine with a 24 kW electric generator, 220 volts DC
• 1 Lancashire boiler 30' × 7', at 85 psi with an economiser of 72 pipes
• 1 Vertical boiler 6' × 2'9" at 25 psi

Quarry

• 1 12 H.P. Robey undertype semi-portable steam engine as a standby for haulage gear
• 1 Cornish boiler 24' × 6'2 at 30 psi

Cooperage :—

• Nil

Sacks :—

• not mentioned

Fitters' Plant :—

• 1 Smith's hearth
• 1 Planing machine
• 1 Pillar drilling machine
• 1 Small lathe
• 1 10" centre gap bed lathe to swing about 10'

Water :—

• The works water is pumped from ½ mile away by 1 electrically-driven 2-stroke pump with an alternative steam drive from a vertical crane boiler.

Gibbs

Registered Capacity :— 500 T/week (1920)

Raw Materials :—

• Freehold chalk
• Medway clay

Tenure of Property :—

• All freehold

Rent of Property :—

• Nil

Royalties :—

• Nil

Loading Facilities :—

• 1 tidal s/s berth up to about 600 tons
• 3 tidal barge berths

Nearest Station & Railway :—

• Grays, Tilbury Section, LMS

Siding :—

• Private siding into works
• Permanent way: 4 miles 4'8½" gauge

Outside Plant :—

• 2 Direct-coupled locos, 11" cylinders, 4'8½" gauge
• 1 Direct-coupled loco, 12" cylinders, 4'8½" gauge (transferred to Brooks)
• 1 3-ton Wilton crane
• 100 2-ton wagons
• 55 3-ton wagons

Raw Material Preparation :—

• 1 Preliminary washmill 15' diameter, chalk and clay
• 1 Screening mill 18' diameter, by gravity to:
• 1 Small mixer 25' diameter and
• 1 Large mixer 40' diameter
• 1 set of 12" 3-throw pumps deliver to kilns

Cement Kilns :—

• Kilns are not mentioned, but there were 21 Johnson chamber kilns

Cement Grinding Plant :—

• 1 set of jaw crushers
• Elevator to hopper over:
• 1 Krupp No.8 ball mill
• 2 Krupp tube mills, 16' × 4', charged with pebbles

Cement Storage & Loading :—

• The form of storage is not mentioned, but it was flat-bottomed warehouses.
• Maximum Capacity 4000 T
• Working Capacity 2500 T

Gas, Oil and Steam Engines, Boilers & Producers :—

Wetmills:

• 1 250 H.P. Yates & Thom
• 1 Lancashire boiler 30' × 8' at 110 psi

Grinding Mills:

• 1 300 H.P. Hick Hargreaves tandem compound condensing steam engine
• 1 29' × 8' at 110 psi with 192-pipe economiser
• 1 27' × 7'
• 1 28' × 8'

Cooperage :—

• not mentioned

Sacks :—

• not mentioned

Fitters' Plant :—

• not mentioned

Water :—

• not mentioned

Halling

Registered Capacity :— 2000 T/week (1924)

Raw Materials :—

• Leasehold chalk
• Burham clay

Tenure of Property :—

• Works: freehold
• Chalk quarry: leasehold

Rent of Property :—

• Nil

Royalties :—

• £2,500 p.a. minimum
• 6d per ton of chalk for lime or shipped
• 3d per ton of chalk for other purposes after minimum

Loading Facilities :—

• 8 tidal barge berths

Nearest Station & Railway :—

• Halling, SE Section, Southern Railway

Siding :—

• Own private siding connected with Halling station
• Permanent way: 4½ miles 4'8½" gauge

Raw Material Getting :—

• 1 20-ton Ruston navvy

Uncallowing :—

• not mentioned

Outside Plant :—

• 2 7-ton Grafton cranes
• 1 5-ton Grafton crane (gantry)
• 1 30-cwt Wilson crane
• 2 direct-coupled locos, cylinders 12" × 18" stroke
• 60 3-ton chalk wagons
• 42 2½-ton chalk wagons
• 24 1½-ton wagons various uses
• 280 briquette trollies
• 3 special 12-ton clinker conveying wagons

Raw Material Preparation :—

Wetmill

• 1 set of roller crushers 2'8" × 1'4½"
• 1 washmill 18' diameter
• 1 set of 10" 3-throw pumps delivering to:
• 1 standard 66' mixer
• 1 set of 12" 3-throw pumps with
• 1 set of 6" 3-throw pumps to:
• 1 auxilliary mixer 13'6" diameter 8' deep
• all electrically driven, except small mixer

Drying and dry meal plant. Clay ex Burham branch is discharged from barges by crane and grab and put through:

• 1 set of roller clay crushers 1'10" × 18¼"
• 1 clay dryer 52' × 5'3" and then conveyed to bins over the pan mills into which it is fed by means of plate feeders

Chalk is fed through:

• 2 sets of roller chalk crushers 3'4" × 17½" feeding:
• 2 pan mills 12'6" diameter and
• 1 set of roller chalk crushers 3'4" × 17½" feeding:
• 1 set of quick running roll crushers 18" × 17½"
• 3 drying drums 45' × 5'3" with necessary fans and dust collecting plant deliver to hoppers over:
• 8 Roulette mills 4'10" diameter. From these the raw meal is conveyed to:
• 6 silos of 250 tons capacity each and then conveyed to small hoppers over:
• 4 mixing machines which feed:
• 4 4-hammer Dorstener brick presses
• Bricks are stored on trollies and hoisted electrically to kilns

Cement Kilns :—

• 15 Schneider kilns fitted with forced draught. One is fitted with continuous automatic discharging grate.
• (The motors and fans have been dismantled and put under cover whilst the works are closed.)

Cement Grinding Plant :—

No.2 Mill, Clinker is fed from hand trollies through:

• 2 sets of jaw crushers and elevators to hoppers over:
• 3 Collis mills
• 1 Krupp tube mill 26' × 5' charged with pellets
• 1 Automatic weighing machine by Simons

No.3 Mill. Surplus clinker from No.2 Mill goes by belt conveyor and trucks to hoppers over::

• 3 Collis mills
• 3 Krupp tube mills 19' × 4' charged with pellets
• 1 Automatic weighing machine by Simons

Cement Storage & Loading :—

• The form of storage is not mentioned, but it was flat-bottomed warehouses.
• Maximum Capacity 21,000 T
• Working Capacity 14,000 T

Gas, Oil and Steam Engines, Boilers & Producers :—

Drying Plant:

• 1 300-H.P. twin-cylinder Campbell gas engine, with:
• 1 Electric generator of 70 kW
• 2 Campbell suction gas producer plants

Roulette mills:

• 1 300-H.P. Galloway compound steam engine
• 2 Lancs boilers 28' × 6'6" @ 100 psi with superheaters and 96-pipe economiser

Clinker Grinding: No.2 Mill:

• 1 300-H.P. Galloway compound condensing steam engine
• 2 Galloway boilers 24' × 7' @ 80 psi fitted with superheaters and 96-pipe economiser

Clinker Grinding: No.3 Mill:

• 1 300-H.P. Adamson compound condensing steam engine with an electric generator of 75 kW
• 2 Lancs boilers 30' × 8' @ 120 psi with 96-pipe economiser

Main Power Station:

• 2 150-H.P. 2-cylinder Premier gas engines each direct coupled to:
• 2 100-kW electric generators 220 volts DC
• 1 300-H.P. 4-cylinder Premier gas engine, direct coupled to:
• 1 200-kW generator 220 volts DC
• 3 Suction gas producer plants

Cooperage :—

• 1 Stave jointing machine
• 1 Stave tongue & groove machine
• 1 Crozer & printing machine attached to drying oven
• 4 Magnetic bells
• 1 Head tongue & groove machine
• 2 Head turning machines
• 1 Head printing machine
• 2 Punching machines
• 2 Splaying machines
• 2 Rivetting machines
• 2 Standard hydraulic pumps
• Electrically driven from main power station

Sacks :—

• not mentioned

Fitters' Plant :—

• 4 Smiths hearths
• 1 Pillar drilling machine
• 1 3'9" radial drilling machine
• 1 4'8" radial drilling machine
• 1 5'6" radial drilling machine
• 1 Shaping machine, 16" stroke
• 1 10" centre lathe, gap-bed, to swing 14'
• 1 10" centre lathe, gap-bed, to swing 6'
• 1 7" centre lathe, gap-bed, to swing 5'
• 1 10½" centre lathe, gap-bed, to swing 4'6"
• 1 Power emery wheel
• 1 Power hacksaw
• 1 Steam hammer about 15 cwt
• 1 Shearing and punching machine, ⅜" plate
• 1 Portable electric drilling machine
• 1 4'0" × 2'0" circular saw bench, 28" diameter saw
• 1 Hand mortising machine up to 1⅛"
• Power supplied by 20 H.P. motor from power station

Water :—

• not mentioned

Imperial

Registered Capacity :— 940 T/week (1920)

Raw Materials :—

• Tolhursts chalk
• Medway clay

Tenure of Property :—

• Freehold

Rent of Property :—

• Nil

Royalties :—

• Nil

Loading Facilities :—

• 1 tidal s/s berth up to about 800 tons
• 3 tidal barge berths

Nearest Station & Railway :—

• Gravesend, SE Section, Southern Railway

Siding :—

• Nil

This works is largely dismantled, the chamber kilns having been demolished. The following plant is still in position :-

Outside Plant :—

• 1 5-ton derrick crane by Butters & Co.

Cement Grinding Plant :—

• 2 sets of jaw crushers with elevators
• 2 No.8 Krupp ball mills
• 2 Collis mills
• 2 Krupp tube mills 16' × 4'0"
• 1 Smidth tube mill 16' × 4'0"

Cement Storage & Loading :—

• Maximum Capacity 6000 T
• Working Capacity 4500 T

Gas, Oil and Steam Engines, Boilers & Producers :—

• 1 200-H.P. horizontal compound tandem condensing engine by Pollit & Wigzell
• 1 200-H.P. horizontal side-by-side compound condensing engine by Cole Marchant & Morley
• 1 140-H.P. vertical compound condensing beam engine by Cole Marchant & Morley
• 1 200-H.P. vertical tandem compound condensing engine by Cole Marchant & Morley
• 1 18-H.P. electric generating set by Alley & McClennan
• 4 Lancashire boilers, 28' × 7' at 100 psi, 1 being fitted with a superheater
• 1 Lancashire boiler, 28' × 7' at 100 psi in very bad condition
• 1 Galloway boiler, 24' × 7' at 100 psi in very bad condition

Fitters' Plant :—

• 1 Smiths hearth, brick built
• 1 Lathe, 16" centres, 16' bed
• 1 Shaping machine, approximately 15" stroke
• 1 Planing machine, approximately 5'0" stroke

Kent

Registered Capacity :— 4500 T/week (1924)

Raw Materials :—

• Leasehold chalk
• Medway clay

Tenure of Property :—

• Works, freehold
• Chalk quarry, leasehold
• Clay at Stoke, freehold
• Sidings, leasehold

Rent of Property :—

• £650

Royalties :—

• Minimum £1500 per annum
• Chalk 2⅔d per ton after minimum
• Clay 4d per ton after minimum
• Sand or gravel 2d per cubic yard after minimum

Loading Facilities :—

• 1 Tidal s/s berth for s/s up to about 1600 tons
• 4 tidal barge berths, 2 only used for ordinary work
• Exilors will do 50 tons per hour
• cranes will load 60 tons per hour

Nearest Station & Railway :—

• Greenhithe, SE Section, Southern Railway

Siding :—

• Own private siding into works
• Permanent way 6¼ miles 4'8½" gauge

Raw Material Getting :—

• 1 20-ton Ruston navvy, 50-ft. jib, employed on chalk getting
• 1 5-ton Ruston navvy

Uncallowing :—

• 1 20-ton Ruston navvy, 30-ft. jib

Outside Plant :—

• 1 7-ton steam crane (Smidth)
• 1 5-ton steam crane (Henderson)
• 3 4-ton electric gantry crane (Babcock & Wilcox)
• 4 Locos, cylinders 12" × 18" stroke
• 1 Loco, cylinders 11" × 18" stroke
• 1 Loco, cylinders 10" × 16" stroke
• 40 second hand main line 10-ton wagons
• 150 5-ton box wagons for chalk and clay
• 75 wagons for various uses

Raw Material Preparation :—

• 3 Sets of hydraulic truck tippers
• 3 Washmills 29-ft. diameter (2 in work while the third is being cleaned out)
• 3 Trix separators
• 2 Smidth tube mills 23' × 6'5" charged with cylpebs. The slurry runs by gravity to:
• 4 Standard 66-ft mixers from which the slurry is pumped to the kilns by:
• 3 sets of Smidth 2-throw pumps 9" diameter
• 1 set of APCM-pattern 3-throw pumps 12" diameter
• 2 Smidth dredger elevators for extracting the flints and grit from washmill sumps
• All motor driven. Clay discharged at jetty by crane and grab and delivered by box truck to waahmills.

Cement Kilns :—

• 2 245' × 11' & 10' diameter with 2 single-shell forced draught coolers 69' × 5'6"

The plant declined to submit the standard kiln performance data

Cubic capacity	cu. ft.
Output	cwt/hr
Output per 1000 cu. ft.	cwt/hr
Surface inside lining	sq. ft.
Output per 1000 sq. ft.	cwt/hr
Coal consumption as rec'd	%
Coal consumption standard	%

• 2 Shaker conveyors deliver clinker to bucket transporter delivering to clinker storage silo
• Motor driven from main power station

Coal Plants :—

• 1 Set of Smidths roller crushers, through an elevator and hopper to:
• 1 Dryer 52'6" × 5'3" and is again elevated to a storage hopper from whence it is fed into:
• 1 Unidan tube mill 36' × 6' divided into 3 chambers charged with steel balls and pellets
• A magnetic separator is fitted near the tube mill feed
• The usual coal hoppers, screws, fans and feeds take the coal into the kilns
• Motor-driven from main power station

Cement Grinding Plant :—

• 3 Smidth's Unidan tube mills 36' × 6' divided into 3 chambers and charged with steel balls and pellets, direct coupled to 300 H.P. motors
• 1 Smidth's Unidan tube mill 36' × 6' divided into 3 chambers and charged with steel balls and pellets, direct coupled to a 370 H.P. motor

Cement Storage & Loading :—

• Finished cement is conveyed by belts 24" wide to the silos, the following belts being employed :-
• 1 600 ft. long
• 1 740 ft. long
• 2 300 ft. long
• There are 10 silos
• 3 Exilor sack filling machines
• 2 Exilor cask or sack filling machines
• 5 Air extractor pumps in connection with above
• 2 Motor-driven cask beating machines
• Maximum Capacity 17,200 T
• Working Capacity 17,200 T

Gas, Oil and Steam Engines, Boilers & Producers :—

• 1 3000 kW Brush turbine 500 volts AC
• 1 250 kW Vickers Petters semi=diesel (standby)
• 2 Thompson boilers nominal capacity 20,000 lb/hr @ 200 psi
• 1 Babcock boiler
• 3 automatic stokers

Cooperage :—

• 2 Jointing machines
• 2 Stave tongue & groove machines
• 2 Crozer machines
• 1 Crozer/chimer machines & printers attached to drying oven
• 4 Magnetic bells
• 1 Head tongue & groove machine
• 1 Head turning machine
• 1 Head printing machine
• 2 Punching machines
• 2 Splaying machines
• 2 Rivetting machines
• 2 Sets standard pumps
• Electrically driven from main power station

Sacks :—

• not mentioned

Fitters' Plant :—

Blacksmiths Shop:

• 3 Smiths hearths
• 1 B & S Massey & Co pneumatic hammer, 5 cwt
• 1 10" screw cutting lathe
• 1 8" screw cutting lathe
• 1 6" screw cutting lathe
• 1 Radial arm drilling machine (4'6")
• 1 Vertical drilling machine
• 1 3 ft planing machine
• 1 16" stroke shaping machine
• 1 Horizontal milling machine
• 1 Grinding machine for milling cutter
• 2 Power hacksaws
• 1 Rough emery wheel
• 1 Shearing & punching machine
• 1 Set rolls for bending
• Above plant is driven by a 25 H.P. motor

Carpenters Shop:

• 1 combination chain mortising machine
• 2 circular saws
• 1 band saw
• 1 18" grindstone
• Driven by 15 H.P. motor

Portable

• 1 Electric vulcanizer
• 1 Acetylene welding plant
• 1 Electric welding plant

Water :—

• not mentioned

Swanscombe

Registered Capacity :— 6750 T/week (1924)

Raw Materials :—

• Freehold chalk
• Freehold clay

Tenure of Property :—

• All freehold, including clay lands at stoke and swanacombe

Rent of Property :—

• Nil

Royalties :—

• Nil

Loading Facilities :—

• 3 deep water (16 ft) s/s berths up to about 3,000 tons
• 1 tidal s/s berth up to about 700 tons
• 1 tidal s/s berth up to about 350 tons
• 1 deep water barge berth
• 4 tidal barge berths

Nearest Station & Railway :—

• Greenhithe, SE Section, Southern Railway

Siding :—

• Private siding on Southern Railway, but approach into works is unsuitable for main line wagons and trans-shipment of goods is necessary
• Permanent way: 21 miles - gauges 4'8½", 3'5½" and 2'8½" Note: 3'5½" gauge is for outside flanges.

Raw Material Getting :—

Clay pit:

• 2 18-ton Ruston navvies

Chalk quarry:

• 2 20-ton Ruston navvies
• 1 18-ton Ruston navvy

Uncallowing :—

• 1 10-ton Whittaker navvy in chalk quarry

Outside Plant :—

• 2 5-ton Grafton steam cranes
• 1 7-ton Grafton steam cranes
• 1 7-ton Smith electric cranes
• 24 Locos of various sizes
• 562 wagons of various sizes and types

Raw Material Preparation :—

Clay Pit Washing:

• 3 Washmills 17'9" diameter
• 3 Sets of 12" 3-throw pumps deliver clay slurry into
• 2 Standard 66' mixers
• 2 Sets of 12" 3-throw pumps deliver clay slurry fron mixers to chalk washmills

Chalk Washing Plant:

• 3 Complete sets of washmills each consisting of:
• 1 Pair 4'9" × 2'9" roller crushers with flint picking conveyor
• 2 Preliminary washmills 18 ft. diameter
• 1 Intermediate washmill 18 ft. diameter
• 1 Intermediate washmill 20 ft. diameter
• 2 Finishing washmills 20 ft. diameter with grit washers
• 2 Sets of 12" 3-throw pumps
• Slurry after being washed through above mills is passed through:
• 4 26' × 5' tube mills charged with pebbles
• Slurry is delivered by:
• 2 Sets of 12" 3-throw pumps to:
• 4 Standard 66'0" mixers and
• 1 Rectangular mixer 260' × 66' × 11'
• 5 Sets of 12" 3-throw pumps deliver slurry to the spoon feeds at kilns

Cement Kilns :—

• 14 kilns 130' × 9'0" and 6'6" with:

The plant declined to submit the standard kiln performance data

• 14 open ended coolers 54' × 5'

Cubic capacity	cu. ft.
Output	cwt/hr
Output per 1000 cu. ft.	cwt/hr
Surface inside lining	sq. ft.
Output per 1000 sq. ft.	cwt/hr
Coal consumption as rec'd	%
Coal consumption standard	%

• The clinker falls from the coolers into 7-ton wagons and is transported by traverser, lifts and locos to the mill hoppers
• Driven electrically

Coal Plants :—

• Coal is discharged at wharf by cranes into wagons and hauled by locos to coal hoppers, extracted by screws and elevated to:
• 2 dryers 130' × 9' & 6'6" which are direct-fired by powdered coal. Coal is then elevated to small hoppers over:
• 8 - 30" Griffin mills
• 3 Krupp tube mills 26' × 5' (2 compartment mills charged with steel balls and pellets)
• Driven electrically

Cement Grinding Plant :—

No.3 Grinding Mill

• 4 Krupp No. 8 ball mills
• 4 Krupp tube mills, 26' × 5', charged with pellets
• 2 cooling tubes, 16' × 4'

No.4 Grinding Mill

• 4 Krupp No. 8 ball mills
• 4 Krupp tube mills, 26' × 5', charged with pellets
• 2 cooling tubes, 16' × 4'

No.5 Grinding Mill

• The 4 tube mills and power unit are being used for wet grinding leaving the following plant out of use:
• 4 Krupp No. 8 ball mills, 26' × 5'
• 2 cooling tubes, 16' × 4'

No.6 Grinding Mill

• 1 pair of jaw crushers
• 2 Krupp No. 8 ball mills
• 2 Krupp tube mills, 26' × 5', charged with pellets

Cement Storage & Loading :—

Form of storage not mentioned, but it was all warehouses divided into bins. Silos were first added in 1929.

• Maximum Capacity 50,000 T
• Working Capacity 33,000 T

Packing Plant:

• 5 bates packers with drag scrapers
• Experimental cask packing machine

Gas, Oil and Steam Engines, Boilers & Producers :—

Clay pit washing:

• 2 single-cylinder Campbell gas engines of 150 H.P. each
• 2 Campbell suction producer plants

Chalk washing plant:

• 3 400 H.P. Oechelhäuser gas engines with gas supplied from main gas station

Chalk grinding plant:

• 1 - 700 H.P. Pollit & Wigzell compound condensing steam engine with a 260 kW electric generator for general purposes
• 3 Lancs. boilers, 30' × 8'0" @ 120 psi
• 1 Economiser of 192 tubes

Cement Grinding Mill No.3

• 2 500 H.P. 4-cylinder Premier gas engines with gas from main gas station
• 2 Exhaust gas boilers for hydrating purposes

Cement Grinding Mill No.4

• 2 500 H.P. 4-cylinder Premier gas engines with gas from main gas station
• 2 Exhaust gas boilers for hydrating purposes

Cement Grinding Mill No.6

• 1 400 H.P. Oechelhäuser gas engine with gas from main gas station
• 1 Exhaust gas boiler for hydrating purposes

General Power, Steam

• 2 1000 H.P. Pollit & Wigzell compound condensing steam engines
• 1 800 H.P. Pollit & Wigzell compound condensing steam engine
• Each coupled to electric generators, 500 volts DC
• 4 Lancs. boilers, 32' × 8'6" @ 130 psi
• 2 Lancs. boilers, 30' × 8'0" @ 130 psi
• 2 Economisers of 256 tubes each

Main Gas Station:

• 3 Dowson & Mason bituminous pressure plants
• 2 Mond's bituminous pressure plants

Cooperage:

• 1 100 H.P. single-cylinder Tangye gas engine
• l Waste wood producer plant, not in use

Cooperage :—

• 8 Jointing machines
• 9 Stave tongue & groove machines
• 3 Crozer & printing machines
• 12 Magnetic bells
• 3 Head tongue & groove machines
• 9 Head turning machines
• 2 Head printing machines
• 3 Punching machines
• 6 Splaying machines
• 10 Rivetting machines
• 1 Set of 3⅝" × 6" 3-throw hydraulic pump
• 1 Mather & Platt sprinkler installation

Steel Drum Plant:

• There is a complete drum plant at this branch, but it has never been put to work.

Sacks :—

• not mentioned

Fitters' Plant :—

Fitting Shop:

• 1 Drummond lathe, 4" centres
• 1 Lathe, 12" centres, 6'0" swing
• 1 Lathe, 10" centres, 4'6" swing
• 1 Lathe, 12" centres, 14'6" swing
• 1 Lathe, 14" centres, 14'6" swing
• 1 Lathe, 7½" centres, 5'0" swing
• 1 Lathe, 18" centres, 18'0" swing
• 1 Lathe, 12" centres, 14'0" swing
• 1 Lathe, 7'6" diameter, geared face plate, moveable bed, 2'0" centres, 10'6" swing
• 3 Emery wheels
• 2 Pillar drilling machines
• 1 Radial drilling machine, 4'0"
• 1 Punching, shearing & angle cutting machine up to ¾" plates
• 1 Screwing machine up to 2" pipes
• 1 Screwing machine up to 3" pipes
• 1 Power hacksaw machine
• 1 Keyseating machine 2'0" travel
• 1 Milling machine 2'0" travel
• 1 Slotting machine, 11½" maximum stroke
• 1 Shaping machine, 1'6" stroke
• 1 Shaping machine, 1'3" stroke
• 1 Planing machine, 7'6" stroke
• 1 1¼ H.P. electric motor for tool room machinery
• 10 Smiths hearths
• 1 Steam hammer, 15 cwt
• 1 Steam hammer, 5 cwt
• 1 11 H.P. electric motor boiler shop
• 2 4 H.P. fans & motors fot air blast on hearths
• 2 6 H.P. motors for lathe & drill in fitting shop
• 1 15 H.P. motors for machinery in fitting shop

Iron & Brass Foundry consisting of:

• 1 Cupola
• 3 Melting furnaces capable of iron castings up to 25 cwt and brass castings up to 3 cwt
• 1 Set plate bending rolls, rolls 11' wide
• 1 Portable electric welding plant
• 1 Acetylene welding plant

Carpenters Shop:

• 2 Wood turning lathes
• 1 Circular saw, 3' diameter
• 1 Log circular saw, 8' dia
• 2 Mortising machines
• 1 Band saw
• 1 Planing & thicknessing machine
• 1 36 H.P. in carpenters shop

At Alkerden:

• 1 Hand blown forge
• 1 Bench drilling machine

Water :—

• not mentioned

Swanscombe Whiting

Registered Capacity :— ?

Loading Facilities :—

• 1 tidal barge berth
• facilities for lorries

Washing Plant :—

• 2 Washmills, 20' diameter

Grinding Plant :—

• 1 Experimental tube mill, 16' × 4'6", not in use
• 3 Grinding & bolting machines
• All motor driven

Vectis

Registered Capacity :— 650 T/week (1924)

Raw Materials :—

• Chalk
• Clay

Tenure of Property :—

• Leasehold
• Works site and clayland - 50 years expiring 25/12/1949
• Chalk land - 35 years expiring 24/06/1929 followed by lease of 20½ years expiring 25.12.1949
• Railway siding land - 35 years expiring 25/03/1930 followed by lease of 19¾ years expiring 25.12.1949

Rent of Property :—

• Works site and clay land - £378 p.a. up to 1924 thence £403
• Railway siding land - £35 p.a.

Royalties :—

• Clay land 2d per cu. yd. or ton of clay - min £50
• Chalk land £205 and 2d per ton chalk sold

Loading Facilities :—

• Three leading berths. Two for flat bottomed, one for vessels with keels. Vehicles loaded at warehouse. Cement carted from warehouse to siding for loading into railway wagons.

Nearest Station & Railway :—

• Newport and Cowes, Southern Railway

Siding :—

• From main line to chalk tip. One loop for empty chalk wagons. Sufficient room to load 3 cement trucks at top end of siding. Line running by works. Private platform for works use, certain trains only. Newport station l½ miles away.

Raw Material Getting :—

• The chalk is got by blasting from a quarry about 2½ miles away. It is loaded straight into standard gauge wagons and railed to the works, where the wagons are end-tipped into a hopper over the crushers.
• The clay is obtained from a pit adjoining the works site.

Uncallowing :—

• At the chalk quarry there is only about one foot of topsoil, dealt with by approximately 36 man-hours per week. The same applies to the clay pit except that the labour amounts to only 20 man-hours per week.

Outside Plant :—

• 1 Electrically driven motor winch for hauling empty chalk wagons to face, installed in chalk quarry.

Raw Material Preparation :—

• 1 set APCM crushing rolls
• 3 Roughing washmills, screening area 10.7 sq. ft., combined output 14 tons per hr, 80 H.P. each @ 21 rpm
• 1 Intermediate washmill, screening area 14.5 sq.ft., 30 H.P. @ 21 rpm, output 14 tons per hour
• 1 screening mill, screening area 58.2 sq. ft., 10 H.P. @ 21 rpm, output 14 tons per hour
• 1 Inclined creeper belt conveyor
• 3 Sets of 3-throw pumps
• 1 25' Mixer at washmills
• 1 Sun & planet mixer 66' diameter at back end of rotary kiln, capacity 1100 slurry tons

Cement Kilns :—

• 1 rotary kiln 155'4" × 8'0" and 7'6" diameter. Burning zone 47'7" long, lined 9" bricks. Remainder lined 6" bricks for 78' and 30' of 2½" bricks

Cubic capacity	5143 cu. ft.
Output	80 cwt/hr
Output per 1000 cu. ft.	15.5 cwt/hr
Surface inside lining	3165 sq. ft.
Output per 1000 sq. ft.	25.3 cwt/hr
Coal consumption as rec'd	33.4%
Coal consumption standard	30.8%

Coal Plants :—

• 1 Dryer - APCM 4'6" × 41'7" long, heated internally and externally by separate furnace, output 2¼ tons per hour from 7% to 3% H₂O
• 1 Powdered coal hopper holding 15 tons, sufficient for 10 hours run
• 2 30" Griffin mills: when run singly these take approximately 35 H.P. each, the output being 2 tons per hour to 20% on 180#. Running together on smaller feed, the power is about 20 H.P. each, with a total output of 2 tons per hour to 17% on 180#

Cement Grinding Plant :—

• 1 Krupp No.8 ball mill, 7'2" × 3'11½" long, lined C.S. plates. Charge 52 cwt 4" steel balls, 50 H.P. @ 26 rpm, output 5.75 tons per hour to 64% on 180#
• 1 Krupp tube mill, 4'11" × 28' long, lined C.I. plates. Charge 10 tons pebbles, 110 H.P. @ 28½ rpm, output 4½ tons per hour to 7% on 180#
• 1 Johnson tube mill, 3'11" × 16'6" long, lined C.I. plates. Charge 4 tons pebbles. 35 H.P. @ 31½ rpm, output 1¼ tons per hour to 7% on 180#

Cement Storage & Loading :—

• Flat bottomed Warehouse
• Maximum Capacity 2500 T
• Working Capacity 2000 T
• Extractor screws and 2 weighing (platform) machine packers
• Hand packing

Gas, Oil and Steam Engines, Boilers & Producers :—

• 1 Vertical twin cylinder triple expansion steam engine by Williams & Robinson, condensing, direct coupled to 130 kW generator @ 230 volts. 10" HP bore, 14" IP bore, 20" LP bore, 9" stroke, 375 rpm, 150 I.H.P.
• 1 Vertical compound condensing steam engine & condenser by Pollit & Wigzell, Corliss valve gear. 22" vacuum, 17½" HP bore, 33" LP bore, 36" stroke, 100 rpm, main drive by ropes (about 525 HP)
• 1 Koerting double acting single cylinder gas engine. 18 1/32" bore, 2'5½" stroke, 135 rpm, 200 I.H.P.
• 1 130 kW generator, 230 volts, rope driven
• 3 Babcock & Wilcox boilers single drum type, 54 tubes, hand fired. Superheater by Babcock. Working pressure 160 psi, superheat 100 deg. F. Approximate evaporation per hour 8000 lb.
• No economisers
• APCM softener, Wier feed pump
• 1 Dowson Gas Plant, 200 I.H.P.

Cooperage :—

• Nil

Sacks :—

• Store & sack sorting. No plant

Fitters' Plant :—

• 3 Lathes 11½", 10" and 6" centres
• 1 4' × 2' × 2' planing machine
• 1 14" stroke shaping machine
• 1 4' radial drilling machine
• 1 Vertical drilling machine, 18" circular table
• 1 Screwing machine, up to 2" pipe and 1½" bolts
• 2 Emery grinders 9" and 6" wheels
• 1 Power hackaw, 21" blade
• All driven by 15 H.P. Electric motor

Smiths Shop:

• 1 3" Blast fan, driven by 3 H.P. electric motor
• 1 Punch & shear up to ¼" plate. Hand power

Water :—

• Artesian well 375' for drinking and boiler feed
• Pond water for washmills and condensers

Wilders

Registered Capacity :— 860 T/week (1920)

Raw Materials :—

• Stone Court Chalk
• Medway Clay

Tenure of Property :—

• Leasehold (to Stone Court Co.)

Rent of Property :—

• £350

Royalties :—

• Nil

Loading Facilities :—

West Side:

• 4 tidal berths-for barges

East Side:

• 3 tidal berths-for barges

Nearest Station & Railway :—

• Greenhithe, SE Section, Southern Railway

Siding :—

• Connection with main line through Stone Court Co. but no direct connection to warehouses

Raw Material Preparation :—

West Side:

• 1 Preliminary chalk and clay mill, 16' diameter
• 1 Intermediate washmill 16' diameter
• 1 Finishing mill 16' diameter
• 1 Set of 8" 3-throw pumps to kilns

East Side:

• 1 Preliminary chalk and clay mill, 16' diameter
• 1 Intermediate washmill 16' diameter
• 1 Finishing mill 16' diameter
• 1 Belt elevator to:
• 1 Mixer 24' diameter × 9' deep

Cement Kilns :—

West Side:

• 16 Chamber kilns

East Side:

• 19 Chamber kilns

Cement Grinding Plant :—

West Side:

• 1 set of jaw crushers
• 1 No.8 Krupp ball mill
• 2 Smidth tube mills, 19' × 4', charged with pebbles

East Side:

• 1 set of jaw crushers
• 1 No.8 Krupp ball mill
• 2 Krupp tube mills, 26' × 5', charged with pebbles

Cement Storage & Loading :—

• The form of storage is not mentioned, but it was flat-bottomed warehouses.
• Maximum Capacity No.1 2100, No.2 1800 T
• Working Capacity No.1 1700, No.2 1450 T

Gas, Oil and Steam Engines, Boilers & Producers :—

West Side - for wet and dry mills:

• 1 200-H.P. Galloway compound condensing steam engine
• 2 Lancashire boilers, 30' × 8' at 90 psi with 72 pipe economiser

East Side - wetmill:

• 1 90-H.P. horizontal tandem compound condensing steam engine with steam from the grinding mill boilers

East Side - grinding mill:

• 1 200-H.P. Pollit & Wigzell vertical compound condensing steam engine
• 2 Lancashire boilers 30' × 8' at 120 psi with super-heaters. (These boilers also supply steam for wetmill engine)