Dolphin Logo Charles Burley's Dolphin Brand.


  • Grid reference: TQ91196438
  • x=591190
  • y=164380
  • 51°20'47"N; 0°44'44"E
  • Civil Parish: Sittingbourne, Kent

Clinker manufacture operational: 1857-1890: 1895-1925

Approximate total clinker production: 140,000 tonnes

Raw materials:

  • Upper Chalk of unknown origin, probably commercial supplies from the Gillingham area or from the Medway Valley.
  • Medway and Swale Alluvial Clay


  • 1825-1857? Samuel & John Cleaver
  • 1857?-1883 Cleaver & Watson
  • 1883-1890 Cleaver & Mist's Cement Works Co. Ltd.
  • 1895-1925 C. Burley Ltd.

Also known as Cleaver & Mist's and Bayford Works. This was an early Roman Cement producing site, commencing around 1825 with dredged septaria from the Swale. Portland cement manufacture began around 1857. The plant had wet process bottle kilns and by 1907, four medium sized bottle kilns were making 80 t/week. It is said that chamber kilns were installed, but this is unclear. The later plant, like that of Smeed & Dean, was a minor adjunct of a large brick plant. The plant used only water transport throughout its life. The plant ceased to make clinker in 1925, pushed out by the uprating of the Sittingbourne plant, and remained for many years in a ruinous state. It was finally redeveloped in the 1990s. The site is now occupied by a concrete products plant.

No rotary kilns were installed.

Sources: not mentioned in Eve: Francis, pp 64, 195-196: Jackson, p 274.