Hawkins, N. (Nehemiah), 1833- · New York : Theo. Audel · leaf 177
Fig. 151. … Fig. 152. fi tiaulic Apparatus. 179 and convex seats fastened at the center and lip? around itscircumference. The object of this arrangement is to transferthe shock from the power of the driving water to the aircushion with the smallest possible friction and vibration. After the valve, C, closes,…
Hydraulic machinery · Pumping machinery
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