Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 117
tration of this kind ofpump. A. Fig. 66 is a 14 by 2y2 by 12 inch combinationin which steam acts on 153.9 square inches of surface, 8 106 QUESTIONS AND ANSWERS ON and as only 4.9 square inches are exposed to waterpressure, the difference is very great. 382. O. What is the ratio in this case?A. 3fto… … fr//////////^/////^^^^ FIG, 67. PUMPS AND PUMPING MACHINERY. 107 usually packed with fibrous packing, but sometimesbrass packing rings are used. 385. Q. Why is fibrous packing used? A. Because it does not wear the brass cylinderrapidly, and when worn out it can easily be replaced. 386. Q. Name…
Pumping machinery
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