US942496A

US942496A - Sewing-machine gage.

Info

Publication number: US942496A
Application number: US50062909A
Authority: US
Inventors: Nathan Friedman
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-06-07
Filing date: 1909-06-07
Publication date: 1909-12-07
Anticipated expiration: 1926-12-07

Description

N. FRIEDMAN.

SEWING MACHINE GAGE.

APPLICATION FILED JUNE 7,1909.

942,9@r la'te-miseal $3 68. 7, 1909 ,ticle which can miss earns ra rnn r anion.

NATHAN FRIEDMAN, OF CHICAGO, ILLINOIS.

SEWING-MACHINE GAGE.

Specification of Letters Patent.

Patented Dec. '7, ions.

Application filed June 7, 1909. Serial No. 500,629.

I '0 all whom it may concern:

lie it known that I, NA'II-IAN FRIEDMAN, a citizen of the United States, residing at Chi cago, Cook county, Illinois, have invented certain new and useful lmprovemci'its in Sewing-h'lachinc Gages, of which the following is a specification.

The present invention relates to attachments for sewing machines which provide for regulating the line of stitches in its relation to the edge of the goods so as to secure uniformity in this respect. 7

The-object is to provide a simple and cili- Kient form of gage which can be readily applied to different makes of sewing machines without calling for any mechanical skill in fixing the attachment in place; and further to provide for easily accomplishing the necessary adjustment and for making that adjustment as line as will he required.

The invention aims also to produce an arbc inexpensively manufactured, but which at the same time will be durable and reliable.

ith these objects in view the invention consists in certain novel features of construction and combinations of parts the essential elements of which are recited in the appended claims and a preferred form of embodiment of which is shown in the accon'ipanying drawings and specifically dc scribed hereinafter.

Of said drawings. Figure perspective the presser-foot and bar and a pt tion of the framework and table ol a sewing machine of the Singer type having my gage attachment fastened in placcj Fig. 2 shows the gage in plan view with its sup porting bracket in horizontal cross section, together with av similar illustration of ,lhe presserfoot and bar; Fig. 3 isa vertical section of the gage taken on the line 3-"l of Fig. 2; and Fig. 4 shows the supporting bracket of the gage in perspective.

The reference letter A designates the work plate of a sewing machine table, B the presser-toot, b the shank thereof and G the presser-foot bar to which the shank I) is connected by a screw 0.

The reference letter D designates in general a supporting bracket forming a part of the attachment, this bracket comprising a port-ion (Z in the form of a plate with a rounded edge, and a portion of of similar character extending at right angles to the portion d. Said portion d has an open 1. represents in slot d in its forward rounded edge, which i l l l i turned back slightly l l l l slot is adapted to embrace the shank of the screw behind the head thereof, as illustrated in Figs. 1 and 2. It will thus be seen that by slightly turning back the screw 0 the bracket can be engaged therewith and then by tightening the screw the bracket can be securely fastened to the shank of the presserfoot. The other portion (Z of the bracket is formed with a key-hole slot (Z so as to adapt the attachment to a different make of sewing machine, such as the Wheeler & Wilson, which has the fastening screw or the prcsscr-ioot at the rear. The key-hole form of slot is employed so that when ap plying the bracket to this type of sewing machine it will not be necessary to withdraw the screw entirely but. as in the case oiT-thc screw already referred to, it can be and the large end of the slot slipppd over the head of the screw and the bracket then-moved laterally so as to carry the small portion of the .slot around the shank of the screw. 'l he latter then being tightened will hold the bracket securely to the presser-l'oot.

Froinlhc under edge of said bracket their projects anv integral flange 11* (Fig. and ears Z are bent up from the rear edge of this flange and over the top of the latter with spaces bclwcen so as to form a guide-way through which an elongated bar i can freely slide. At one end this bar is bent downwardly at right angles to form a short vertical portion 0 and thence extends toiwvardly as at w and is then bent laterally as at c" and tin-ally iiormed with a forwardly extending portion a which lies close to the work plate A parallel with the side edge of the presscr-ioot B. This portion a engages the edge of the goods to keep the line of stitches at the proper distance from such edge.

The bar E is formed along its rear edge with a series of rack teeth 6 slightly tapered and engaged by a worm-gear F which has trunnions f journaled in hearings on the bracket D formed by portions of the middle thereof extending rearwardly beyond the ears (Z and rolled back into circular form as clearly shown in Fig.

the portion (Z of 3, such bearings bein designated by the reference letter f. It will be'obvious that by applying finger or thumb to the worm-gear and turning the latter the bar 15 can be moved back and forth in the slide-way provided by the flange 61* and the ears It Will further be apparent that through this means a fine adjustment of the gage can be had. In order to enable the operator to properly measure the adjustment the bar E is marked on top, adjacent the forward edge, with a scale a running to eighths of an inch and adapted to register with the outer edge of the left-hand ear (Z In order to facilitate the application of the bar to the bracket, avoiding the necessity of any bending back of portions of the latter or the use of any fastening devices, the bar E is reduced in Width at one end as shown at 6, this reduced portion running up to the-first of the rack teeth 6 It will be seen that with this construction the bar can be inserted in the bracket slide-Way, the reduced portion 6 moving past the worm-gear F until the first teeth 6 strike the convolution of the wormgear. By then turning the latter the bar can be worked through the slide-Way to the desired adjustment.

It will be seen that the above construction provides an extremely simple and efiicient form of gage which can be readily applied to different makes of sewin machines and which is capable of any desired adjustment by very simple and easy manipulation. It will also be noted that the form and construction of the parts is such as to provide for manufacture of the article in quantities inexpensively.-

An advantage of the particular form of adjusting meansa Worm gear engaging a dentally slipped by force applied directly to it. I 7

Having thus (jlQ-SCl'lbQtl my invention, What I claim is:

1. A sewing machine bracket having portions extending at right angles to each other and each portion slotted for engagement with the fastening screw'of' the sewing machine presser foot shank, one

such portion of the bracket or the other being 4 fitted against the presser foot shank and said bracket having a slide-Way to extend alongside said presser foot shank; and a gage bar in said slide-way. v Y

2. A. sewing machine gage comprising a 5 bracket having portions extending at right angles to each other and each portion slotted for engagement with the fastening screw of the sewing machine presser foot shank, one such portion of the bracket or the other being 55 fitted against the presser foot shank and said bracket having a slide-way to extend alongside'said presser foot shank; a gage bar in said slide \vay having rack teeth, and a worm gear on the bracket engaging said 0 teeth.

NATHAN FRIEDMAN.

. Witnesses:

Lo UIsB. ERWIN. v FnAnK PARKER DAVIS.

gage comprising a