, having a sliding block fitted with a pin , working in a guide formed on the disc that is bolted to the end of the cranked shaft ; this block and pin is moved by a screw and thumb handle , by which means the stroke can be varied to any extent within the full throw , and even brought to the centre… … Fig . 338 . — Kingston Valve . Kingston valves . — Kingston valves must be ° # . . . a , Spmdle and valve . b , Chest . fitted to the pipes for injection , feed , and blow - c , stuffing box . D D,Coiumns . off for the boiler , steam pump , & c . , and indeed * ^ Tste ^ H « ! c ^ ing ! to all pipes…
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