Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics (1892)
Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 698
e same distance from the anvil, and could onlyoperate on work of that exact size. The ram has therefore to be raised or lowered to suit thevarious requirements of work in hand, and to effect this a source of supply of water under apressure of about 250 lbs. has to be providetb which, when admitted… … Figs. 1 and 2.—Hydranlic forging press. distance; on the other hand, the power of the steam immediately raises the ram upon thewater being allowed to escape. , » +i The valve used for the rapid admission and escape of water becomes, theretore, rather animportant feature, and is shown in Fig. 2. It…
Mechanical engineering
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