US1411860A - Attachment for sewing machines - Google Patents

Description

I. MARSDEN. ATTACHMENT FOR SEWING MACHINES.

APPLICATION FILED SEPT-22. I921.

1,41 1,860. Patented Apr. 4, 1922.

UNITE .l rtTENT OFFICE.

ATTACHMENT FOR SEVVDTG- MACHINES.

Application filed September 22, 1921.

To all whom it may concern Be it known that l, JAMES MARsnEN, a subject of the King of Great Britain, residing at Vi igan, in the county of Lancaster and Kingdom of England, have invented certain new and useful improvements in or in Connection with Attachments for Sewing lllachiues, of which the following is a specification.

This invention has reference to sewing machines, and the object oft-he invention is to provide a gauge or adjustable guiding attachment for use in pacing or guiding the work. Sill-l1 guiding attachment is specially applicable for ensuring that a line of stitching shall be sewn at a uniform distance from the edge oi a coat or other garment, or for spacing the distance between two seams, or between a seam and the edge of the work.

The invention will be understood from the. following description, reference being machine looking in the direction of the ar row Figure 2 with my invention applied thereto;

Figure 2 is a plan view thereof;

Figure 3 is a side elevation of the gauge oradjustalole guiding attachment separated from the sewing machine.

The invention comprises a plate gauge 1 which is laid flat upon and can be firmly clamped in its adjusted position to the cloth plate or base 9- of the sewing machine by a spring washer and set screw. The plate 1 is adjustable at right angles to the direction of the cloth feed. The edge of this plate 1 adjacent to the needle 3 has a raised or turnedup portion a which forms the work guide for the fabric when being sewn, while a portion of the opposite edge is shaped so as to have when viewed in plan a series of steps or stepped notches (orgraduations) 5 any of which can, by adjusting the plate 1, be brought into coincidence with a datum line 6 scribed on the cloth. plate or machine base 2 parallel with the work guide. Each step is cut so as to lie say one sixteenth (or one thirty second) of an inch in advance of the preceding step, so as to form an index or scale, and thus enable the work guide portion l of the plate to be set at any required distance from the needle When the plate 1 is so moved as to bring Specification of Letters Patent.

Patented Apr. 4, 1922.

Serial No. 502,540.

one of the steps 5 of the index into coincidence with the datum line 6 on the clot-h plate or base, the raised portion or guide 4; (at the opposite edge of the plate) lies at a certain distance from the axial line of the needle 3, and is maintained in that position by the clamping of this gauge 1 to the cloth plate or base 2 of the machine. By releasingthe clamp and shifting the plate 1 so as to bring one of the other steps 5 of the index into coincidence with the datum line 6, the guide portion l of the plate will have been set at a diil erent distance from the needle according to the particular work required. The edge of the plate which is at right angles to the ed es that form the work guide t and the index respectively, is provided with depending lips 7 which rest against the corresponding edge of the cloth plate 2 of the machine, so as to maintain the edge of the plate that forms a guide for the fabric,

parallel with the direction in which the cloth is movedby the feed.

Parallel with the turned down lips 7 an open ended slot 8 is cut in the body of the plate 1 through which is passed a screwed pin 9 adapted to be screwed into a threaded hole in the cloth plate or machine base 2, and in connection; with this set pin a; concave spring washer 10 is provided, which when the pin is screwed down presses against the plate 1, andholds it firmly in the position into which it has been set so that it cannot recede. The open ended slot Senables the plate 1 to be adjusted into the position required or to be quickly taken out of theway by slackening the set pin 9 half a turn or more and without removing the latter. r

In use, one of the steps 5 of the index is brought into coincidence with the datum line 6 011 the cloth. plate or machine base 2, so as to determine the position of the work guide l with respect to the needle 3,

and the set pin 9 is screwed up tight so as to bind the plate immovably in position, the concave washer l0 ensuring that a tight grip is maintained.

The guide t forms a straight edge for the tabric being sewn, and ensures that the line of stitching from the edge of the fabric shall be uniform, or for spacing the distance between two or more rows or" stitching on the edge or other part of a garment, or between a seam andthe edge of the work. It also prevents any tendency of the work 4 with the free action of the feed 13.

presser foot 14 is also shaped so as to clear to go crooked. The margin 11 of the .plate is specially shaped so as to recede back from the work guide portion 4, so as to allow of the open end of the slot 8 to be at the same side of the plate as the said work guide though somewhat to the rear therelhis also helps to ensure the plate gauge bedding itself flat against the cloth plate or machine base '2 so as to prevent there being any crack or crevice between. The rear of the turned up portion of the plate which forms the work guide is formed with a strengthening rib 12, such rib being soshaped or positioned as not to inter iiefie the work guide 4, its general shape in plan bein indicated by the dotted lines in Figure 2. fihe perforation 15 in the feed plate 16 allows for the passage of the needle 3.

The features of construction, advantages andoperation of the invention will now be apparent. It is to be understood that I do not limit myself to the precise details of construction or mode of operation herein described, as changes could be suggested whieh'while theylmight change the appearance of the appliance, would not involve a departure from the scope of the invention herein set forth. The invention can be ap plied to various kinds or makes of sewing machine, and I do not confine myself to a.

sewing machine of any particular manufiacturer. r I declare that what I claim is 2- LA gauge attachment for sewing machines having a cloth plate, comprising a plate member adjustable at right angles to the direction of feed of the cloth and hav ing a work-guide at one edge and a series of steppednotches at the opposite edge: the cloth plate marked with a datum line parallel to the said work-guide so that the workeguidecan be setat a desired distance from the needle axis by bringing any of the she ped notches into coincidence with the sair datum line; and means for clamping the said plate-member to the cloth plate in the position into which it has beenset.

2. A gauge attachment for sewing machines having a cloth plate, comprising a plate member adjustable at right angles to the direction of feedof the cloth and having at one edge a turned up portion to form a work-guide and at the opposite edge a ended slot therein, downwardly turned lips series of graduated stepped notches; the cloth plate marked with a datum line parallel to the said work-guide; guiding means on theplate member for ensuring its adjustment at right angles to the direction of cloth feed; and means for clamping the said plate member to the cloth plate in its adjusted position. I

3. A gauge attachment for sewing machines having a cloth plate, comprising a plate member adjustable at right angles to the direction of feed of the cloth and having a transverse open-ended slot therein; a work-guide at one edge of the plate memher, said plate member having a series of graduated stepped notches at the opposite edge thereof; the cloth plate marked with a datum line parallel to said work-guide, downwardly turned lips at the edge of the plate member which is at right angles to the first named edges for hearing against the corresponding edge of the cloth plate, a threaded clamping pin, and a concave spring washer carried thereby, said pin being adapted to pass through the slot in the plate member and screw into a threaded hole in the cloth plate of'the machine.

4. A gauge attachment for sewing machines having a cloth plate, comprising a plate member adjustable at right angles to the direction of cloth feed, said plate memher having a series of graduated ste ped notches at one edge and a worki e at the opposite edge, the margin of t e plate member being recessed away behind the work-guide and havingv a transverse openon the plate member to maintain its wor guide during adjustment always parallel with the cloth feed, the cloth plate having a datum line marked thereon parallel with the work-guide, and a threaded hole therein, and a threaded clamping pin passing through the slot in the plate member and into said hole, for securing the plate member in its adjusted position on the cloth plate.

In witness whereof, I have hereunto signed my name this 9th day of Sept. 1921, in the presence of two; subscribing witnesses.

JAMES MARsDEN.

\Vitnesses:

SYDNEY JAMES MARSDEN, JOHN MGLACHLAN.

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