Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 75
nG,37 234. Q. Does this design cause unnecessary fric-tion? A. Yes, but no special trouble is caused by it,except that it requires more power. 235. Q. How is this undesirable feature dis-posed of? A. By use of the double-suction pump, shown inFig. 38. 64 QUESTIONS AND ANSWERS ON … FIG. 38 PUMPS AND PUMPING MACHINERY. 65 236. Q. Explain the principle on which it oper-ates. A. Water enters from both sides, hence the thruston one is balanced by the other, resulting in very-slight friction. 237. Q. Is Fig. 39 a horizontal or a verticalpump? A. Properly speaking, this is a…
Pumping machinery
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