Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 326
^ --0 (5-- B, c, i 9-- the stud up or down in the segmental slot, Fig. 296, which variesthe travel of the auxiliary valve and reverses the stroke of themain piston as desired. By raising the stud the pump will makeshorter strokes, and by lowering it will make longer strokes. 328 Pumps and…
Hydraulic machinery · Pumping machinery
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