Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 149
Valvb. … Hydraulic Motors. 151 which the piston is secured, motion is communicated to a crankand fly-wheel, and through tliese to the machinery to bedriven : it is the same with pressure engines wlien used to moveother machines, except that instead of the elastic vapor ofwater, a column of that liquid…
Hydraulic machinery · Pumping machinery
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