A textbook on mechanical and electrical engineering (1898)
International Correspondence Schools · Scranton : International Textbook Co., [1898-99] · leaf 447
cylinder C by means of a benttube /. The pump pis-ton fits the cylinder ac-curately, and has a valveV opening upwards.At the junction of thetube with the cylinderis another valve falsoopening upwards. Whenthe piston is raised thevalve V closes, and,since no air can get intothe cylinder from… … PNEUMATICS. 423 space displaced by the piston, the space in the tube / and inthe receiver i?. The piston is now pushed down, the valve Vcloses, the valve V opens, and the air in C escapes. Thelower valve Fis sometimes supported, as shown in Fig. 192,by a metal rod passing through the piston and…
Electrical engineering · Mechanical engineering
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