Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 103
y is a vacuum required in such cases?A. Because it lowers the temperature necessary for boiling the crude materials, therefore it is not dam-aged by heat. 335. Q. What are the advantages of the verticalcrank and fly-wheel pump, or the Scotch yoke and fly-wheel type, as illustrated in Fig. 56? A. It… … PUMPS AND PUMPING MACHINERY. 93 336. Q. What are its disadvantages?A. There are no special disadvantages, except thatit is difficult to maintain steady speed when only a
Pumping machinery
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