Du Bois v. Kirk
Supreme Court of the United States
APPEAL FROM THE CIRCUIT COURT OF THE UNITED STATES FOR THE WESTERN DISTRICT OF PENNSYLVANIA. This was a bill in equity for the infringement of letters patent No. 268,411, issued December 5, 1882, to Arthur Kirk for a new and useful improvement in movable dams.
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APPEAL FROM THE CIRCUIT COURT OF THE UNITED STATES FOR THE WESTERN DISTRICT OF PENNSYLVANIA. This was a bill in equity for the infringement of letters patent No. 268,411, issued December 5, 1882, to Arthur Kirk for a new and useful improvement in movable dams. As stated in. his specification, the invention “ relates to improvements in the construction of movable dams and locks, whereby they are stronger, safer, more durable, and .more easily operated, than those heretof ore-in use.” The specification sets forth an improvement in the style of dam known as the bear-trap, dam, in several…
1Opinion of the Court
Mr. Justice Brown,
after stating the case, delivered the opinion of the court. '
Bear-trap dams are used in small streams for the purpose of creating a reservoir of water, in which logs may be collected, and over which they may be floated down the river when' the dam is opened. These dams are movable, and consist of two leaves of heavy timbers, bolted together, rising and falling between two vertical sidewalls of- masonry or timber work. These leaves are hinged at their outer edges to timbers in the bed of the stream, and when the .dam is down, the upper leaf overlaps the other to a certain…
2Cases cited13 opinions
- Russell v. FarleySupreme Court of the United States · 1882
- United States v. Brig Malek AdhelSupreme Court of the United States · 1844
- Lehnbeuter v. HolthausSupreme Court of the United States · 1882
- Western Electric Co. v. LaRueSupreme Court of the United States · 1891
- Canter v. American InsuranceSupreme Court of the United States · 1830
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3Cited by72 opinions
- Radio Corp. of America v. Radio Engineering Laboratories, Inc.Supreme Court of the United States · 1934
- Newton v. Consolidated Gas Co. of NYSupreme Court of the United States · 1924
- Charles Peckat Mfg. Co. v. JacobsCourt of Appeals for the Seventh Circuit · 1950
- Remington Cash Register Co. v. National Cash Register Co.District Court, D. Connecticut · 1925
- Commissioner of Insurance v. Massachusetts Accident Co.Massachusetts Supreme Judicial Court · 1945
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