Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 112
cially when working to full capacity. 364. Q. Is the direct-acting steam pump an eco-nomical machine, so far as steam consumption is con-cerned? A. No; it was not when first put on the market,and has never been made so, up to the present time. 365. Q. Then why are they so extensively used?A.… … 102 QUESTIONS AND ANSWERS ON
Pumping machinery
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