Slice. Wedge piece inserted between bilgeway and keel to lift a vessel ready for launching. 2. Long iron bar used for stirring up fires in furnaces of boilers, and for clearing spaces between furnace bars. 3. Lever, with chisel end, used for removing planking or copper sheathing.
Slide Valve 316 Slipway
Slide Valve. Mechanism that admits steam on alternate sides of piston of reciprocating engine. Operated by the engine. Two commonest are 'Piston' and 'D' types.
Sliding Baulk. Substantial flat timber put under bilges of a vessel being launched, and resting on bilgeways of launching slip. Travels with ship when launching.