Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 107
FIG. 57 96 QUESTIONS AND ANSWERS ON … FIG-.58 PUMPS AND PUMPING MACHINERY. 97 A. In acid-works, for the removal of obnoxiousand dangerous fumes, also in the bisulphite process ofpapermaking. Fig. 60 illustrates a vertical, duplex airpump, or exhauster.
Pumping machinery
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