Campbell v. Mayor of New York

Wheeler, D. J.

The plaintiff has title to letters patent No. 42,920, dated May 24,1864, and issued to James Knibbs, assignor, for an improvement in steam fire-engine pumps, whereby such an engine, having constant power for discharging several streams of water through lines of hose of various lengths, may be made to throw fewer streams, or the same number through longer lines when the resistance to discharge would be greater, without varying the power, or causing undue strain upon the working parts or hose, by means of a passage from the discharge to the suction side of the pump, regulated by a…