Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 477
p andopen below. The chain p /> fastened at its lower end to the joint-head q of the piston-rod r. The pist down in the air-cylinder ss, which is about 10 foot high, 2 feet in the diameter, and piston rod is packed as in B steam-engine. At the side of the cylinder is the valve-box «, Fig. 1321,… … is hollow, to permit the escape of the condensed air (after it has pressed down the piston to the ex-tremity of the cylinder) through the aperture x. As soon as the valve w is moved out of its position,as shown in Fig. 1327, downwards, (which i3 effected by the combined contrivance of the bar a ,…
Mechanical engineering
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