Legal Opinion

Hamilton v. Ives

U.S. Circuit Court for the District of Eastern Michigan

Decided January 16, 1873PublishedCited by 1 opinion

In equity — Motion for a new trial. Suit brought upon letters patent for “improvement in saw-mills,” granted Palmer Hamilton, December 5, 1SG5, No. 51,310. In the engravings, Fig. 1 represents a front elevation and Fig. 2 a vertical section of a portion of a saw-mill, containing the patented improvements. D, D is the frame-work, to which the guides are fastened; C, C, the curbed upper guides; t, t, the'straight lower guides.

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In equity — Motion for a new trial. Suit brought upon letters patent for “improvement in saw-mills,” granted Palmer Hamilton, December 5, 1SG5, No. 51,310. In the engravings, Fig. 1 represents a front elevation and Fig. 2 a vertical section of a portion of a saw-mill, containing the patented improvements. D, D is the frame-work, to which the guides are fastened; C, C, the curbed upper guides; t, t, the'straight lower guides. The patentee states in his specification that the object of his invention is to impart to the saw of a saw-mill a rocking motion while it is cutting, so that the movement…

1Opinion of the Court

LONGYEAR, District Judge.

The action in this case was for an alleged infringement of a patent, No. 01.310, granted to the plaintiff December 5,1865, for an improvement in saw-mills. The device patented consists of a new combination of old elements as a means of producing a certain result, and is set up in the claim in the following words: “Having thus described the best mode with which I am acquainted of embodying my improvements, what I claim as my invention, and desire to secure by letters patent, is giving to the saw in its downward movement a rocking or rolling motion, by means of the…

2Cases cited2 opinions

  1. IVES v. HamiltonSupreme Court of the United States · 1876
  2. Hamilton v. KingsburyU.S. Circuit Court for the District of Northern New York · 1880

3Cited by1 opinion

  1. Steam-Gauge & Lantern Co. v. Ham Manuf'g Co.U.S. Circuit Court for the District of Northern New York · 1886

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