US137618A - Improvement in sewing-machines - Google Patents

Description

Sewing-Machines. No. 137,618.

Patented April a, 182s.

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UNITED STATES PATENT OEEIOE.

JOHNONEIL, OF NEW YORK, N. Y., AssreNOR TO HIMsELE AND R. A.

sOEONEMAN, OE SAME PLACE.

IMPROVEMENT IN SEWiNG-MACHINES.

Specification forming part of Letters Patent No. 137,618, dated Apxil, 1873; application filed January 6, 1873.

To all whom t may concern:

Be it known that I, J OHN ONEIL, of the city, county, and State of New York, have invented a new and useful Improvement in Sewing-Machines, of which the following is a specification z This invention consists in a simple and efficient arrangement of gear for working the rock-shaft which carries the hook andl Works the feed.

Figure lis a side elevation of a machine constructed accordingtomyiniprovement,with a part of the stand for supporting the needlearm broken away; also a section of a hatfraine, as applied to be wired in the brim. Fig. 2 is a rear elevation of the machine, eX- cept a portion of the lower part of the stand. Fig. 3 is a transverse section of Fig. l on the line x x.

The machine is designed more particularly for securing the wire-e in the brim b of a ladys hat-frame, of which c represents the crown, and the frame or stand is therefore constructed as represented in the side elevation-in Fig. l, to allow of presenting the hatframe soas to be properly acted upon. The said frame consists of a stand or platform, A, for the support of the housings B C, one of which supports the stationary arm D, and both support the journalE of the needle-arm F, which said platform is lsupported on suitable legs G H, which are cast with the platform,and form part of it, and the legs G extend upward beyond the table, and unite in a plate, L, which bends over from the platform at K, under the stationary arm, and extends along horizontally to a point a little beyond the said arm, and thus is adapted for the application of the hat-frames aforesaid. The

needle-arm has an extension, M, placed below the journals E, and connected at its lower end with wrist-pin K of drive-shaft N by the strap O. This extension M is also connected by rod U with bell-crank T, which is attached by a connection, X, to a block, W, having a pin that enters a slot of the arm V in the rock-shaft Q, which carries the parts for catching the upper thread, and also the feed operating cams, so that the recprocation of the block turns the arm and shaft. The feed-plate S is confined in the groove of plate L by the spring f. It rests against the cam g on the rock-shaft, which raises and moves it forward and back, and the length of the feed is varied by the set-screw h. The part t' of the cam on which the plate rests raises it, the part j pushes it fOrward,-and the part 7c pushes it back. For regulating the length of the feed, the part k of the cam is caused to act on an adjustingscrew, h, which, being shifted to or from the cam, causes the feed-bar to` be pushed back more or less, so that its forward movement is correspondingly varied. Besides holding the feed-plate in its place in the groove e the spring f holds said plate in any position in which it may be left at rest by the cam.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The arrangement of the bell-crank T, connecting-rod U, slotted block W, slotted arm V, and connecting-link Xwith the needlearm and the rock-shaft, for operating the latter in the manner described.

JOHN ON EIL. Witnesses:

T. B. MOSHEE, ALEX. F. ROBERTS.

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