Cahoon v. Ring
U.S. Circuit Court for the District of Maine
This was a bill in equity [by James B. Cahoon et al. against Aaron Ring] founded upon letters-patent [No. 18,083] granted to Charles W. Cahoon, September 1, 1857, for an improved seeding-machine. On the 26th of the same month the inventor assigned to James B. Cahoon the entire interest. James B. Cahoon subsequently assigned one half of the patent to Dependance H. Furbish.
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This was a bill in equity [by James B. Cahoon et al. against Aaron Ring] founded upon letters-patent [No. 18,083] granted to Charles W. Cahoon, September 1, 1857, for an improved seeding-machine. On the 26th of the same month the inventor assigned to James B. Cahoon the entire interest. James B. Cahoon subsequently assigned one half of the patent to Dependance H. Furbish. The patent was reissued to the complainants May 11, 1858. The claims of the reissued patent were in these terms: “First. The employment of a tubular chamber or discharger, rotating rapidly in a horizontal position, so that…
1Opinion of the Court
CLIFFORD, Circuit Justice.
According to the bill of complaint, the invention secured to the complainants by the reissued letters-patent consisted, among other -things, in constructing a tubular chamber or discharger for the purpose of throwing the grain, seed, &c., from the machine, by giving to it a centrifugal force, derived from the rapid revolution of the discharger, and in so placing and revolving the discharger in a horizontal position, that the outer edge or periphery of the discharger will be in a plane vertical, or nearly vertical, to the horizon, and the grain, seed, &c., will be…
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