1862 London Exhibition: Catalogue: Class VIII.: J. Scott Russell

1976. RUSSELL, J. SCOTT, London.
Three cylinder surface condensing marine steam engines.
THREE CYLINDER MARINE STEAM ENGINE AS ARRANGED FOR SCREW PROPELLOR
Collective power: 100 horses.
Works expansively with variable cut off.
Surface condensers with India rubber packing.
Diameter of cylinder 30 inches.
Length of stroke 3 feet.