Consolidated Safety-Valve Co. v. Crosby Steam-Gauge & Valve Co.

The complainant charges against the defendant an infringement of two patents granted to George W. Richardson, for improvements in safety-valves for steam-boilers; one dated September 25, 1866, No. 58,294, and the other, January 19, 1869, No. 85,963. The former patent is the important one; the other is for a device to assist in adjusting certain parts of the patented valve. Richardson’s *769valve went into general use upon the locomotives of this country and of Europe, immediately upon its introduction to the market, and is still made and sold very extensively. The defendant holds two patents…