interior side. Fig. 4 represents a hand pump, as placed in a well forgeneral use. A is a pump case through which the liquid is to be liftedand forced. Within said pump case are two hubs, each hav-ing flanges or pistons of a peculiar shape. These hubs aredenoted by the letters, B and C. The pistons… … ing length with the hubs and pistons, thus allowing theliquid to enter and discharge freely. From the construction of the hubs, B and C, and their pis-tons, it will be seen that the motion of the hub, C, is not con-stant, but intermittent, being at rest from the time the neckof the piston, D,…
Combination · Claim · Purpose · Patents · Constructed · Arranged · Manner · Set · Steam engines · Main valve · Purpose set · Address munn · Purposes set · Sewing machine · Thepurpose set · Tbe purpose · Scientific American · Henry carey
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