Western Electric Co. v. LaRue
Supreme Court of the United States
APPEAL FROM THE CIRCUIT COURT OF THE UNITED STATES FOR THE SOUTHERN DISTRICT OF NEW YORK. This was a bill in equity brought by LaRue, plaintiff in the court below, for the infringement of letters patent No. 270,-767, issued to Edgar A. Edwards, January 16, 1883, for a new and useful improvement in telegraph keys. ín the specification the patentee stated that his invention related “ to telegraph keys or instruments used for transmitting telegraphic signals, and is an…
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APPEAL FROM THE CIRCUIT COURT OF THE UNITED STATES FOR THE SOUTHERN DISTRICT OF NEW YORK. This was a bill in equity brought by LaRue, plaintiff in the court below, for the infringement of letters patent No. 270,-767, issued to Edgar A. Edwards, January 16, 1883, for a new and useful improvement in telegraph keys. ín the specification the patentee stated that his invention related “ to telegraph keys or instruments used for transmitting telegraphic signals, and is an improvement on the well-known Morse key, being in substituting for the trunnions or pivots upon which the lever vibrates a…
1Opinion of the CourtJustice Brown
The invention covered by this patent consists in the use in a telegraph key of a flat strip of metal supported at either end upon posts by means of adjustable screws and to the centre of which the lever is fastened. The torsional action of this piece of metal serves as a spring support for the lever. The main object of the invention is the substitution of this torsional spring for the ordinary pivotal support previously used, which consisted of tapering pivots or gudgeons projecting from the sides of the lever into the bearings. The testimony indicates that the pivots require very exact…
2Cases cited2 opinions
- Winans v. DenmeadSupreme Court of the United States · 1854
- Lehnbeuter v. HolthausSupreme Court of the United States · 1882
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- E. I. Du Pont De Nemours & Company v. Berkley and Company, Inc., E. I. Du Pont De Nemours & Company v. Berkley and Company, Inc.Court of Appeals for the Eighth Circuit · 1980
- Reece Button-Hole Ma. Co. v. Globe Button-Hole Ma. Co.Court of Appeals for the First Circuit · 1894
- Du Bois v. KirkSupreme Court of the United States · 1895
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