Singer v. Braunsdorf

22 F. Cas. 196, 7 Blatchf. 521, 1870 U.S. App. LEXIS 1667
U.S. Circuit Court for the District of Southern New York·Decided September 20, 1870·Published·Cited by 4 cases

Opinion

BLATCHFORD, District Judge.

This suit is brought to recover for the alleged infringement of letters patent granted to Isaac M. Singer, November 4th, 1856, for an “improvement in sewing machines.” The plaintiffs claim that the defendants have, by the manufacture and sale of a sewing machine called the Aetna machine, infringed all the claims of the patent, which are four in number: (1) “Operating the needle, to give it the required reciprocating motions, substantially such as described, by a crank-pin, or roller, on a ro- . tating shaft, acting in a cam-groove, substantially such as herein described, whereby the required motions are imparted to the needle with much less extent of motion of the crank-pin, or roller, in the cam-groove, and, consequently, less friction, than if the cam-groove were on the shaft, and the pin, or roller, on the needle-carrier, as described;” (2) “projecting the operating part of the surface of the feeding apparatus through the surface of the table, substantially as described, so that such feeding surface may act on a portion of the under surface of the material to be sewed, to give the required feeding motion to space the stitches, while the other portions of the said material slide on the table, which answers the purpose of stripping the said material from the feeding surface, and to cover and protect the mechanism which operates the feeder, as set forth;” (3) “imparting the feeding motion to the feeder, to present the material to be sewed to the action of the needle, for spacing the stitches, by griping the periphery thereof, or any equivalent therefor, by a griping lever, substantially as described, in contradistinction to the action of a pawl or hand catching on to ratchet teeth, whereby the extent of feeding motion maybe adjusted and varied to any degree, instead of being restricted by the size of ratchet teeth, and whereby, also, I avoid the wear and liability to derangement incident to the use of a ratchet motion, as set forth;” (4) “In combination with the feeder, attaching the presser, for controlling the material to be sewed, and holding it to the surface of the feeder, to a slide, or equivalent therefor, substantially as described, so that the plane of its under surface shall always bear the same relations to the plane of the table, in a line at or nearly at right angles to the line of the seam, whether the material to be sewed be thick or thin, and for the purpose set forth.”

One of the defences set up in the answer is, that the improvements claimed in the patent had been in public use and on sale, with the consent and allowance of Singer, the inventor, for more than two years prior to his ■ application for a patent therefor. It is not disputed, that sewing machines constructed by Singer, and containing the arrangements of mechanism claimed in all four of the [197] claims in question, were put on sale by him in the market about the 1st of January, 1851, and were sold in that year at the rate of about twenty per week. The plaintiffs contend, that the patent sued on was applied for by Singer on the 12th of December, 1850, and, therefore, before any public use or sale of the improvements claimed. The defendants contend that the patent sued on was not applied for by Singer until the 14th of March, 1853, and, therefore, more than two years after the improvements in question were first put on sale by Singer. This question is to be determined by a reference to the records from the patent office, which have been put in evidence.

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Singer v. Braunsdorf, 22 F. Cas. 196, 7 Blatchf. 521, 1870 U.S. App. LEXIS 1667 (circtsdny 1870).

22 F. Cas. 196 (Singer v. Braunsdorf) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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