Discoveries and inventions of the nineteenth century (1905)
Routledge, Robert · London : G. Routledge and Sons · leaf 29
conomy. It is usually effected by the modification of the slide-valve,shown at c. Fig. 5, where the faces of the slides are made of much greaterwidth than the openings. This excess of width is called the lap andby properly adjusting it, the opening into the cylinder may be kept closedduring the… … Fig. 5.—Slide Valve. disc of metal is carried on the shaft of the engine, and revolves with it.The axis of the shaft does not, however, run through the centre of the disc,but towards one side. The disc is surrounded by a ring, to which it is notattached, but is capable of turning round within it.…
Inventions
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