Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 363
on during the lift. Fig. 771 is a partial vertical section ofthe valve motion of one of the high-servicepumping engines at St. Louis, Mo., show-ing the wiper A¥, or lifting toe, with itsconnection with the valves. The wipershaft has a reciprocating motion by whichthe valve stem is raised and… … MACHINE DESIGN AND MECHANICAL CONSTRUCTIONS. 34 Fig. 772 exhibits on a larger scale a portion of a section in plan and eleva-tion of the steam piston and mode of packing of the above engine. Fig. 773 is the elevation of a stamp mill in which a double wiper on a rotaryshaft raises the stamp by its…
Mechanical drawing
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