US643930A - Guide for sewing-machines. - Google Patents

Description

No. 643,930. Patented Feb. 20, I900.

W. F. AULD. GUIDE FOR SEWING MACHINES.

A licacimi filed Sept. 28, 1899.)

(No Model.)

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UNITED STATES PATENT OFFICE.

WVILLIAM F. AULD, OF BALTllVIORE,]llARYLAND.

GUIDE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent N 0. 643,930, dated February 20, 1900. Application filed September 28,1899. Serial ITO-731,936. (No model.)

To all whom it may concern;

Be it known that I, WILLIAM F. AULD, a

- citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Sewing-Machine Gages, of which the following is a specification.

This invention relates to a gage and guide for stitching done by sewing-machines.

The object of the inventionis to provide a gage device which may be set or adjusted to the table to insure any desired marginal edge on an article of fabric that is to be stitched and which will also admit of switching the gage-face out of position or moving the setscrew that holds the gage to. the table.

The invention is illustrated in the accompanying drawings, in which-- Figure 1 is a longitudinal section through the gage and guide-plate and shows the usual positions or relations of such devices to the presser-foot of the sewing-machine. Fig. 2 is a side view or elevation of the gage and guideplate, but in this figure the device is turned around with the gage pointing in the opposite direction from that in Fig. 1 to illustrate the pawl-and-ratchet connection. Fig. 3 illustrates in plan view the gage as used in stitching a cuff. The gage at this point of the operation is about to be retracted or drawn back into the guide-plate to permit the buttonholetang of the cuff to pass.

Referring now to the drawings by letters, a designates a guide-plate having a depressed center I) with a longitudinal slot 0. The marginal edge 01 of the guide-plate at one side is provided with ratchet-teeth c. 'A set-screw f is passed down through the slot 0 and screwed into the table-top of the machine (not shown) until the shoulder g of said set-screw binds on the depressed center 19 at either side of said slot and secures the guide-plate in a rigid position.

The gage h slides on the depressed center b of the guide-plate between the two parallel marginal edges (Z thereof and is provided with a gage-face 'i, against which the edge of the article, such as a cuff j, moves as it is being stitched, and is also provided with a longitudinal slot it, through which latter the setscrew f passes. The shoulder g on the setscrew takes over the top surface h of the gage and prevents the latter from raising up. The gage his also provided at one side with a pawl Z, which engages the ratchet-teeth e on the marginal edge of the guide-plate a. A flat plate-spring m is carried on the top surface it of the gage, and one end of said spring projects over the edge of said top surface onto the pawl Z and serves to keep the pawl pressed down in engagement with the ratchet-teeth. The guide-plate a is provided at one end with a screw-pin 'n, and another screw-pin n is carried in the end of the sliding gage. A spiral spring 0 connects the two pins n a and serves to draw the gage back onto the depressed center 1) when the pawl Z is released from engagement with the ratchet-teeth e. The gage, in the present instance at the opposite side from the pawl, carries a projecting lugp, which the operator may conveniently grasp to move the gage out against the tension of the spring.

The operation would be as follows: The guide-plate a being secured rigidly to the table-top of the machine by means of the setscrew f, the gage maybe moved out toward the presser-foot q of the machine until the desired marginal edge is attained. The pawl l will engage the ratchet-teeth e and retain the gage against the action of the spring 0 in the desired position. The parts would then be in position for the gage-face t to guide the article that is being stitched. When a part of the article, like the tangr of a cud, (see Fig. 3,) is presented and it is desired to allow such part to pass the gage-face, the operator will merely press down on the presser-disk of the pawl Z and release the pawl from engagement with the ratchet-teeth e, whereupon the gage will be drawn by the spring 0 away from the edge of the cuff and allow the tang r to pass. The operator may then move the gage out until the pawl engages the tooth of the ratchet where it formerly was, and the operation of stitching may then be continued.

Having thus described my invention, what I claim as new, and desire to secureby Letters Patent, is-

A gage for sewing-machines comprising a stationary slotted guide-plate having a depressed center and provided on its marginal edge with ratchet-teeth; a gage fitting on said guide-plate and sliding in said depressed cen- In testimony whereof I aflix my signature ter, said gage also having a pawl which enin the presence of two witnesses. gagessaldratchet-teeth; anda springorother WILLIAM R AULU resilient connection between said guide-plate 5 and said gage for retracting the latter when \Vitnesses:

the pawl is released from engagement with CHARLES B. MANN, J r., the ratchet-teeth on the guide-plate. CHARLES VIETsoH.

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