C0E8 V. THE COLLINS CO. 905 �set fortb." The Haynes fastener, if earlier than the plaintiff's, ■ffhich is somewhat doubtful, does not have a coil which operates like that shown in the patent ; the Waterhouse exhibit does not have the inclined or brace arm, to any useful extent; the Orr fastener has no eoil. AU these earlier deviees appear to have worked well, but the plaintiff's changes were improvements, and brought his fastener into use extensively, which is, of itself, some evidence of novelty and utility. Decree for the complainant. ���CoBS V. The Collins Co. {Circuit Court, D. Connecticut. January 16, 1882.) �1. Lbttbks Patent — WEBaicHES— iNFRDiaEMENT. �The flrst claim of reissued letters patent No. 3,483, granted to Loring Coes, June 1,1869, for an " improvement inwrencli,"whichis aclaiiu toan improved Coes wrench, so constructed that the thrust or back strain of the rosette screw, when the wrench is used, shall be borne by the shank instead of the handle of the wrench, substantially as described, is not infringed by a wrench made in accordance with the description in letters patent No. 50,364, granted to Jordan & Smith, October 10, 1865, for an " improved wrench." ^. Samb— Saiib. �To remedy the difflculty experienced in the use of the Coes wrench of 1841, the plate and the ferrule being often broken or bent and pushed out of place, and the wooden handle split or crushed, George C. Taft substituted in place of one rosette three parallel rosettes, with narrower peripheries, revolv- ing at right angles to the Une of motion of the adjustable jaw in three paral- lel grooves in the adjacent face of the main bar, each groove bearing against both faces of its rosette, so as to prevent the rosette and the screw from being carried bodily towards the flxed jaw, and to cause the back-thrust to be re- ceived by the aide of the groove furthest from the flxed jaw, instead of as. before, by the plate. To eflect the same resuit, the defendant put underneath the plate a screw nut, in the extension of the main bar, a screw thread being eut in the extension, and this screw nut is screwed up tight against the bottom of the screw nut by a acrew nut at the extreme end of the extension below the handle. The rosette is the same as the Coes rosette of 1841, and always main- tains the same position relatively to the handle. Meld, that the means em- ployed by the defendant are different from those employed by Taft, and are not the mechanical equivalent. �In Equity. �George L. Roherts, for plaintiff. �William E. Simonds, for defendant. �Blatchford, C. J. This suit is brought on reissued letters patent No. 3,483, granted to Loring Coes, the plaintiff, June 1, 1869, for an "improvement in wreneh," the original patent. No. 40,590, having been granted to Thomas H. Dodge, as assignee of George C. Taft, ��� �
