Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 177
mmon head for use with hydraulicrams; the static pressure on the under side of this valve is 883pounds ; it is seen that so great a shock in avalve of this weight would rapidly destroyboth valve and seat. The waste in amechanism of theRife engine con-sists of a large portwith ample open-ing and a… … Fig. 151.
Hydraulic machinery · Pumping machinery
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