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Questions and answers on pumps and pumping machinery (1912)
Wakeman, William Henry, 1855- [from old catalog] · Chicago, The Joseph G. Branch publishing company · leaf 186
mber is used to prevent shocksand jars, due to reversing motion of the pump, it oughtto be retained, because a sinking pump is not firmlyfastened in place. 617. Q. Fig. 115 illustrates a large sinking pump,fitted with a regular air chamber and a device whichresembles an inverted chamber. What is… … © «E==®===@ •ii I © -©===4f=:F=#=^^Pumping machinery
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