US123788A - Improvement in ruffling attachments for sewing-machines - Google Patents

Description

2 S-heets--Sheet1.

I H MOSCHCQWHZ. Improvement in Ruffiing Attachment far Sewing; Machines 1 Patented Feb. 20, 1872.

M w M 2Sheets-Sheet2. H.MOSCHCOWETZ.

lmpmvement in Ruffiing Attachment for Sewing Mchine's. N0.123,788. Patented Feb. 20, 1872.

UNITED STATES PATENT QFFICE.

HERMAN MOSOHOOWITZ, OF NEW YORK, N. Y.

IMPROVEMENT I'N RUFFLING ATTACHMENTS FOR SEWING-MACHINES.

Specification forming part of Letters Patent No. 123,788, dated February 20, 1 872.

\ SPEomIoA'rIoN.

I, HERMAN Mosoncowrrz, of the city, county,.and State of New York, have invented certain Improvements in Attachments for Sewing-Machines, of which the following is a specification Nature and Objects of the Invention.

My invention relates to laying plaits to be sewed by a sewing-machine, and is so constructed as to be capable of being adjusted to lay plaits of varying depths and at different distances apart from each other with great regularity and precision while the sewingmachine is in operation to operate the plaiter and stitch the plaits into place.

Description 0 the Drawing.

Figure l is a top or plan view of my plaiting attachment. Fig. 2 is a side view, showing the plaiting-fork at the right hand. Fig. 3 is an opposite-side view, showing the cam and set-screw; and Fig. 4 is a front-end view with the plaiting-fork drawn back in readiness to operate. 7

General Description.

A is the bed or frame by which the attachment is secured to the sewing-machine, and upon which the partsare mounted; B, the arm which is operated by the needle-arm of the sewing-machine, and which actuates the plaiting mechanism; 0, the cam that moves the plaiting-lever-and operates the plaitingfork; D, the lever-arm actuated by cam G and connected to plaiting-fork F; E, the brace or support'that supports the case in which the handle of the fork slides; G, the case or slide in which the fork-handle moves, and is marked as a gauge to determine the size of plaits; H, the connection between arm D and fork-handle I; J, the set-screw by which the space between the plaits is regulated; K, the ratchetwheel to which cam O is attached, and which moves it; L, a standard, upon which ratchet K and cam O and arm B are mounted; M, the post upon which arm D is pivoted; to, the pawl operating upon ratchet K; e, a spring operating the pawl a; b,-a spring coiled around post M, with one end fastened to the frame of the attachment and the other end fastened to arm I), and keeps the arm in contact with cam G; k, the set-screw in the end of arm D that regulates the depth of the plait; c, a spring that supports arm B against the needle-arm of the sewing-machine; d, the pin by which link H is connected with case G, and serves to gauge the size of plaits by the gauge marked upon case or slide Gr; m, the pivot upon which arm B works; n, the pivot to arm D; 0, the shaft upon which cam G and ratchet K operate; S, the step in earn 0 by which the sudden motion of the fork is produced to form the plait.

The operation of my attachment is as follows: I secure it firmly to the bed-plate of a sewing-machine in such manner that a needle ,will pass through the small slot near the end of the arm B. I then place the material to be plaited upon the machine, so as to receive the stitches at the desired point, and let that portion of it that is to be plaited extend under fork F. Then the sewing-machine is in operation, it carries the arm B downward with the needle-arm; and as the needle-arm rises, the arm is carried up by means of spring 0. As the arm B is carried down, the back end of it rises, and, the pawl, which is mounted on the back end, being in contact with the ratchet-teeth, it moves the cam (3 around. This is repeated until the end of the lever-arm D, which is in contact with the cam, carries out the fork F upon the goods, until, when the back end of arm D comes to the step in the cam, it springs off, which throws the fork, and with it the goods, to the needle; and the plait thus formed is stitched in place, while the fork is being drawn back for another jump; and

this operation is repeated.

To regulate the width of plaits, move the set-screw k. To regulate the space between the plaits, move the set-screw J.

Claims.

JOHN W. RIPLEY.

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