the air pipe or well casing. In the illustration accompanying the 1865 patent of A.Brears annular tube pump, a foot-piece is shown attached tothe lower ends of the eduction and air pipes. This nozzle is so [438] DAVIS & WEIDNER—THE AIR LIFT PUMP 35 arranged that the air is directed upward into… … la) (b) *(c) fd) Pig. 6—Different Methods of Piping Wells. used. In the original patent (No. 542,620) of James E. Bacon,issued July 16, 1895, the statement is made that it was found advantageous to make an opening into the uptake-pipe nearthe bottom end thereof, so that the air may flow through…
Pumping machinery · Compressed air
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