Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 387
ns of the screw the plate is forced up and away from the valve, and 372 MACHINE DESIGN AND MECHANICAL CONSTHUCTIONS. can be so nicely adjusted that the valve works freely and perfectly steam-tight.When the pressure is greater in the cylinder than in the chest, the pressure-plate is forced back, to… … Fig. 845. chest S is central and incloses the valve ; the exhaust chambers E E are at theends of the valve, and are connected through the hollow stem or body of thevalve. The valve depends on its accuracy of fit for its tightness. The valve-chamber is bored out and ground, the valve is turned,…
Mechanical drawing
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