McCreary v. Pennsylvania Canal Co.
Supreme Court of the United States
APPEAL EKOM THE CIKCÜIT COURT.OP THE UNITED STATES POR THE ■ EASTERN DISTRICT OP PENNSYLVANIA. This was a bill in equity for the infringement of letters patent number 129,844, issued July 23, 1872,.and reissued as number 5630, October 28, 1873, to the appellant, John McCreary, for an “ improvement in coupling and steering "apparatus.”
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APPEAL EKOM THE CIKCÜIT COURT.OP THE UNITED STATES POR THE ■ EASTERN DISTRICT OP PENNSYLVANIA. This was a bill in equity for the infringement of letters patent number 129,844, issued July 23, 1872,.and reissued as number 5630, October 28, 1873, to the appellant, John McCreary, for an “ improvement in coupling and steering "apparatus.” In the specification of the reissue the patentee stated that his invention related “ to certain improvements in devices for steering canal boats,” etc., described in letters patent granted to Elijah and John McCreary, April 16, 1872, number 125,684, by means of…
1Opinion of the CourtJustice Brown
About three months prior to the patent in suit, and on April 16, 1872, another patent, numbered 125,684, was issued to Elijah and John McCreary, for “an improvement in steering devices for canal boats,” etc., which covered a similar coupling together of boats, barges and scows by means of a vertical groove forméd in the overhanging stern guard or bumper of the forward boat, which groove was entered by the cutwater of the rear boat, a chain being used for connecting the boats, which chain was so connected with a train of gear-wheels placed in the rear boat as to enable both boats to be steered…
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