US998956A

US998956A - Attachment to sewing-machines.

Info

Publication number: US998956A
Application number: US52957009A
Authority: US
Inventors: David Coghill
Original assignee: THOMAS M GIBSON
Current assignee: THOMAS M GIBSON
Priority date: 1909-11-23
Filing date: 1909-11-23
Publication date: 1911-07-25
Anticipated expiration: 1928-07-25

Description

D. OOGHILL.

ATTACHMENT T0 SEWING'MAGHINES. APPLICATION FILED NOV. 23, 1909.

998,956. Patented July 25, 1911.

UNITED SA DAVID COGHILL, OF TORONTO, ONTARIO, CANADA, ASSIGNOR OF ONE-HALF TO THOMAS M. GIBSON, OF TORONTO, CANADA.

ATTACHMENT TO SEWING-MACHINES.

Specification of Letters Patent.

To all whom it may concern:

Be it known that I, DAVE) CoeHILL, a subject of the King of Great Britain, residing at Toronto, in the county of York and Province of Ontario, Canada, have invented a new and useful Attachment for Sewing-Machines, of which the following is a specification.

My invention relates to a device adapted to be attached to any ordinary machine, or a sewing machine adapted for special work such as corset or fancy sewing, whereby a strip or strap of tape may be attached to a garment by being sewed thereto and stitched along the outer edges leaving a space between the rows of stitching to permit the msertion of a stiffener either while being sewed to the garment or afterward.

The attachment consists essentially of a supporting arm adapted to be attached to the head of the machine and extend upwardly over the head of the machine, and be provided with a series of supporting shafts adapted to carr spools, on which the tape and stiffener to e sewed to the garment are carried.

Carried by pivotal supporting arms at-:

tached to the head of the machine and adapted to extend in front of the head immediately below the upper end of the supporting arm on alinement, is a folder which consists of a flattened tube, the lower end being curved and adapted to direct the strip of material also the stiffener to a position immediately in front and very close to the foot and needle of the machine. The upper end of the folder is open and flared and is formed with wings adapted to turn the outer edges of the strip of material inwardly in the course of passing down through the tube to the point of egress.

I attain these objects by the device as illustrated in the accompanying drawings in which;

Figure 1 is a perspective view of a sewing machine with the attachment in position; Fig. 2 is a front elevation of the folder; Fig. 3 is a side elevation of the folder; Fig. 4 is a detail perspective view of the upper end of the folder, and Figs. 5, 6, and 7, are cross sectional views through the upper end of the folder on line M, 6-12, and 0c, Fig. 4:, respectively. v

Like letters refer to like parts throughout the specification and drawings.

a designates a carrying arm preferably consisting of a curved strip of metal adapted to be fastened to the back of the head of a sewing machine and extend upwardly and forwardly. Fastened to the carrying arm and extending at right angles therefrom are supporting shafts b on'which are mounted rotatable spools 0, and on the spools are wound the stri of fabric or tape adapted to be stitched to the garment.

In the illustration I have shown two spools carried by the supporting arms, but any number may be carried for difi'erent class work. porting shafts are adjusting collars d provided with thumb-nuts e by which they may be adjusted to the supporting shafts for the purpose of readily removing and replacing the spools.

- f designates the folder which consists of a flattened curved tube open at both ends, the upper end f being flared or enlarged On the outer ends of the sup- Patented July 2.5, air.

and formed with wings g in each of its outer I edges, being adapted to engage with the outer edges of the strip of fabric or tape and turn the edges inward in the course of passing down through the tube. The wings are formed by a section of the tube being slitted and folded in upon themselves and extend from the upper outer end of the folder, downwardly any convenient depth, a slight interval being left between the wing and the side of the tube, so that a strip of material passing down between the wing and the side of the tube will be directed and creased by engaging with edge of the wing. Extending downwardly from the upper part of the folder and in a position interposed between the two wings, is a flat tongue it formed by the slits by which the wings are formed, the purpose of the tongue beingto press or hold the strip of tape flat within the tube and provide against buckling as the edges are being turned up by the wings g.

Figs. 5, and 6, illustrate the relative position of the combination of the strip, tongue, and folder in the act of turning the edge inward. Fastened to the back of the folder fare connecting arms 2' and j by which the folder is adjustably attached to the head of the machine. The connecting arms are attached to the head of the machine by thumbnuts 70 by which they may be'adjusted or removed. Formed on the outer face of the folder are a series of guide loops Z by which the stiffener or inter-lining may be directed down the outer face of the tube to the point of egress in the bottom of the tube through which the strip of tape or fabric passes. Formed through the front face of the folder is an elongated slot n by which communication to the interior of the folder may be had for the purpose of getting at the strip of tape or fabric within the folder in the event of it getting twisted or stuck, and also for the purpose of directing it down through the tube when first being connected. The end of the tongue h is sllt to make the end pliable and also to facilitate the passing of the tape or strip down through-the tube in the initial passage through the tube or folder. The upper connecting arm 2' by which the folder is connected to the head of the machine is jointed, and adjustable by a thumb-nut Z, that the upper or folding end of the folder may be adjusted away from or against the head of the machine to bring it in a proper positlon below the spool 0.

The operation of the devlce 1s as follows, the strip of fabric or tape is wound around one of the spools 0 preferably the lower, and the stifl'ener or interlining the upper. The free end of the fabric or tape is directed downwardly and forced into the flared upper end of the folder, the outer edges engaging between the folding wings g, that the edges may be folded over upon themselves in passing down through the outlet in the lower end of the folder. The free end of the stiffener or interlining passes down through the guide loops Z and are adapted to engage with the folded strip of fabric at the bottom of the folder and pass under the foot of the machine and needle, by which the strip is stitched along the outer edges, and the stiffener or interlining in between the folded edges of the fabric. The strip or tape and the stiffener or interlining are regulated in passing through the folder by the action of the needle foot and will be drawn in through the folder as required.

What I claim as new and desire to secure by Letters Patent is,

In an attachment for sewing machines, a curved flattened tube, said tube open at either end, the upper end of the said tube being flared or expanded, folding wings formed integral with the inner sides of the flared upper end of the said tube, a flexible slitted tongue .formed in between the said folding wings in the said tube, guide loops formed on the outer face of said curved tube, connecting arms formed with the said tube, said connecting arms adapted to adjustably attach said curved tube to the head of the machine, substantially as described.

Signed at Toronto, this 28th day of October, 1909.

DAVID COGHILL. In the presence of A. E. KNOX, GEo. KEOGH.