Goldingham, Arthur Hugh. [from old catalog] · New York, Spon & Chamberlain; [etc., etc.] · leaf 96
ement is of less width, seeing thatonly atmospheric pressure obtains when it is operatedas compared with the exhaust valve cam, which has toopen that valve against a pressure in some cases as highas 40 lbs., necessarily involving considerable work. Valves and Valve-Boxes.—The dimensions of… … ON DESIGNING OIL ENGINES. 39 be entirely renewed if necessary and at small expense.This type of valve-box is shown at Fig. 18, both valvesbeing operated from the cam-shaft. The springs re-quired to close the valves are shown at Figs. 18 and 19.The latter arrangement has the advantage of havingthe…
Internal combustion engines
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