US1061090A - Plate-gage for sewing-machines. - Google Patents

Description

I. LEVY.

PLATE GAGE FOB SEWING MACHINES.

APPLICATION FILED JULY 26, 1912.

1,061,090. 1 PatentedMay6,1913.

WW m 7 (L [/7 /9 5 lll ISAAC LEVY, or oAxLANn, cALIroRNIA.

PLATE-GAGE FOB SEWING-MACHINES.

Specification of Letters Patent.

Patented May 6, 1913.

Application filed July 26, 1912. Serial No. 711,648.

To all whom it may concern:

Be it known that 1, Isaac LEVY, a citizen of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Plate-Gages for 'Sewing-Machines, of which the following is a specification.

My present invention relates to plate gages for sewing machines. to be disposed on the cloth plate thereof, in proximlty to the reciprocating needle, to guide the textile for stitching at a predetermined distance from a margin thereof.

The principal object ofmy invention is to provide a gage which includes a plurality of elements having guide faces so mount-- ed that any one guide face may be quickly disposed in operative relation to the stitching path, to guide the textile for obtaining a seam of a predetermined width.

Further objects of my inventlon are to provide a plurality of elements having guide faces spaced apart from each other and each disposed at a predetermined distance from a point situated on a base, common to all of the said elements, the said base being adapted to be .adjustably mounted upon the cloth plate of the sewing machine, whereby the relative position of the guide faces to the stitching path may be altered, but without altering the relative position of one guide face with respect tot-he others.

In the drawings, forming'a part of this specification :--Figure 1 is a fragmentary plan view of a cloth plate of a sewing machine, showing the application of my invention thereto. Fig. 2 is a vertical sectional View through a portion of the cloth plate, the device embodying my invention being shown in front elevation. Fig. 3 is a sectional view on the lines 33 of Fig. 1. Fig.

4 is a sectional view on the lines 44 of Fig. 1, taken through one of the guide ele-.

ments.

Similar characters'refer to similar 7 parts throughout the views.

The usual cloth plate designated by 5,

having the needle aperture 6 therein; and a feed bar,'by 7, which works in,an aperture 8 in said plate 5, to advance the textile. The feed bar 7 is of any suitable design, and the stitching path, which passes through aperture 6, parallel to the longitudinal'axis of such bar, is indicated by the line 00-02.

The cloth plate 5 is provided with the usual screw threaded aperture 9 disposed to one side of the stitching path, to receive thumb screw 10, whereby various attachmeats may be used in operative relation to the stitchin mechanism.

The gui e elements, as hereinafter described, are mounted upon an elongated base plate 11, having at one end a guideface 12,

preferably formed by an upturned portion of the plate, and at its other end, preferably an enlargement or oflset portion 13 for a purpose to be subsequently described. An elon ated guide slot 14 is provided in plate 11, isposed.with its axis referably at a right angle to the plane of guide face. 12, this slot to receive the shank of thumb screw 10, whereby the base plate may be rigidly secured to the cloth. plate in an adjusted position. When so mounted, the uide face 12 is disposed parallel to the stitching ath 'a:-w, at a predetermined distance there rom to guide the textile for obtaining a seam of the desired width.

The several guide elements, designated generally b 15, carried by the plate 11', are each provi ed with a stem 16 and a guide face 17 disposed adjacent one end thereof. The elements 15 are each pivoted at a common axis upon the late 11, as by the pin 18,. rigidly carried iiy normally disposed in juxtaposed relation .with each other to occupy. a space of minimum magnitude.

An essential feature in a device of this character is that the guide face 17 contacts with thecloth late 5 in order to efi'ectively guide the clot and also, the said guide face must be of sufiicient height above the plane of said cloth plate to guide cloth of considerable thickness' In order to provide for the desired compactness of the device said plate, and are without detracting from its: ability to serve effectively as stated, the guide faces are disposed to lie in' spaced apart stepped relation to each other, as clearly shown in Fig. 2 of thedrawing, when the several elements are in juxtaposed relation to each other.

vThus, the faces 1'1 are positioned at a predetermined distance from the axis of pin 18, which positioning enables the device to be used in obtaining seams of different widths.

Any one of the elements 15 may be swung about the axis of pin 18 exposing the guide face 17 of the next adjacent element to serve as a guide relative to the stitching path m-m, the said faces, when the device is in a compact condition, lying in planes parallel to each other .and parallel to the guide face 12.

I prefer to carry the guide faces 17 of each element 15 by an angular extension 19, extendin from stem 16 and dis osed to present t e said faces 17 in front 0 the said face 12, when the device is in a compact form, so that all of the guide faces have the same relative transverse disposition with respect to the stitching path ww. I also prefer to mount pin 18 upon the said oflset portion 13 of plate 11, so that the stem 16 of elements 15 may extend to oneside of plate 11 and abut against an abutment 20 carried by such plate, which limits oscillation of the members 15, in one direction, to osition the guide faces 17 thereof in paral elism with the stitching path la-09.

The operation of the device is as follows :-The plate 11 having been secured to plate 5' by the thumb screw 10, with the guide face 12 at a predetermined position rom and arallel to the stitching path :rw, this ace 12 may serve to guide the cloth to provide a seam of maximum width all of the elements 15 havin been swung out of operative relation to said path aa:v. To obtam a seam of less width than may be obtained by the guidance of face 12, the element 15 which, upon being swung into operative relation with the path m-w, positions its guide face at a distance from said line, equal to the desired positioning of the stitching of the textile, is then used. For instance; in Fig. 1, the top three elements 15 are shown as swung out of operative relation to the stitching path, and the fourth element from the top may serve as the guide.

Changes in detai ma be made without departing from the spirit and scope of my I invention; but,

I claim I 1. A gage of the character described comprising in combination, a base plate having an elongated slot, a lurality' o juxtaposed elements having guidg faces and means pivoting said elements to sai plate with an axis of oscillation common to all of the said elements, the said guide faces of said elements being positioned at different distances. from said axis, and at a right angle to the axis'of said slot in said plate, and adapted to lie in planes iparallel to each other, or to be swung out 0 such position, about the said axis of oscillation. q

2. A gage of the character'described comprising in combination, a baseplate, a plu- 7 rality of juxtaposed elements having guide faces, and means pivoting said elements with -slot wi mon to, all of the said elements, said guidefaces of said elements being ositioned at different distances from the said axis and adapted to lie in planes parallel to each other, or to be swung out of such positions, about the said axis of oscillation, an means carried b ,said base plate for limiting oscillation '0 said elements in one direction, to position the said ide faces thereof in parallelism substantially as and for the pur ose set forth.

4. A gage of the character escribed comprising in combination, a base plate rovided with a ide face and having an e ongated ti its axis disposed at right angles to the plane of said base, a lurality of juxtaposed elements having-gui e faces, and means pivoting said elements to said late with an axis of oscillation common to a l of the said elements, the said guide faces of each element being ositioned at different distances from the sald axis and adapted to lie in planes parallel to the planeof the said guide face of the base plate, or to be swung out of such position about the said axis of oscillation.

5. A gage of the character described comprising in combination, a base plate, a plu-" rality of elements including a stem portlon, an an lar extension at one end thereof and a gui e face carried by said extension, means pivoting said elements to said base plate, at their ends opposite from said guide face, and in juxta osed relation with each other with the sai stem portion to one .side of .said base plate and w1th said faces positioned in planes parallel to each other, said stems being ada ted to be swung about said pivot out of sai position, and an abutment carried by said base plate ,to engage with said stem portions of said elements to limit movement thereof in one direction, to osition the said guide faces thereof in para lelism, substantially as and for the purposes set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

ISAAC LEVY. Witnesses:

W. A. S'rocx, M. M. Esoia'nmcx.

Images