The engineer's sketch-book of mechanical movements, devices, appliances, contrivances and details employed in the design and construction of machinery for every purpose; (1902)
Barber, Thomas Walter. [from old catalog] · New York, Spon & Chamberlain · leaf 191
, used for double power hydraulic lift cylinders employing a trunk piston. For the low power thepressure water acts on both sides of the piston ; for the doublepower it acts only on the back of piston, the front side being thenopen to the exhaust. 1509. A starting valve, having two ordinary wing or… … C iXHtHJSt 186 THE ENGINEERS SKETCH-BOOK. 1510 & 1511. Two methods of operating starting valves forhydraulic lifting machines. 1510 acts by counter balanceweights and a single rope, each of the weights being heavyenough to move the valve, and 1511 by an endless rope. 1512. Low pressure starting…
Mechanical movements
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