Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 428
sure, put an air-chamber on it. Air-chambers should be from ten to fifteen times thecapacity of the pump-cylinder, with glass gauges-to showthe quantity of air in them for large pumps, and some pro-vision to supply and maintain the air at such levels as will be found by experi-ment suited to the… … Fig. 985. 412 MACHINE DESiaX AND MECHANICAL CONSTRUCTIONS. are bumped up or dished. The thickness of the cylindrical part is to be deter-mined by the rules on riveting (page 383). The dished head, struck up on a spherical radius (Fig. 987) equalto the diameter of the cylinderand of the same…
Mechanical drawing
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