US917872A

US917872A - Gaging mechanism for shoe-sewing machines.

Info

Publication number: US917872A
Application number: US10174002A
Authority: US
Inventors: Arthur Ernest Jerram
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1902-04-07
Filing date: 1902-04-07
Publication date: 1909-04-13
Anticipated expiration: 1926-04-13

Description

A. E. JERRAM.

GAGING MECHANISM FOR SHOE SEWING MACHINES.

APPLICATION FILED APR. 7I 1902.

917,872. Patented Apr. 13, 1909 2 SHEETS-SHEET 1.

L0%1/@aes FEW/670607.

A. E. J BRRAM.

GAGING MECHANISM FOR SHOE SEWING MACHINES.

APPLIOAT ION FILED APR. 7, 1902.

. Patented Apr. 13, 1909.-

2 SHEETS-SHEET 2.

srar PATENT onrion.

ARTHUR ERNEST JERRAM, OI? LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

G AGING- La DHANISM FOR SHOE-SEWING MACHINES.

Specification of Letters Patent;

Patented April is, 1909.

. tpplication filed Apri17, 1902. Serial No. 101,740.

To all whom'it may concern:

Be it known that I, ARTHUR Enivns'r JER- RAM, a subject of the King of the United Kingdom of Great Britain and Ireland, re- 5 siding at Leicester, in the county of Leicester, England, have invented certain new and useful Improvements in Ga'ging Mechanism for Shoe-Sewing Machines; and I do hereby declare the following to be a full, clear, and exact description 01 the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The presen invention relates to gaging mechanism for shoe sewing machines and more particularly to that type of sewing machines adapted to stitch the outsole' to the welt of a lasted shoe. shoes the outsole projects varying distances beyond the upper as in the so-called Baltimore edge shoes, wherein the sole at the outer side of the ball portion projects farther from the upper or is wider than it is at the toe portion or at the inner side of the ball of the shoe. In such shoes the shank 5 portion of the sole is usually, sewed with a close edge, that'is to say, the edge of the sole projects but little beyond the upper, while around the forepart the sole projects at a greater and usually at a varying distance '0 from the upper. In securing the outsole to the welt it is desirable that the seam of stitches which unites the outsole to the welt should lie close to the edge of the sole, especially around the iorepart, while in the 5 shank it is sometimes the practice to have the stitches of greater length and to locate the seam farther from the edge of the sole. Various gaging mechanisms have been in vented for use in connection with the Good- 0 year rapid stitcher, all of which, however, were adapted for use in connection with a machine which employed a stationary work support or table and a movable presser foot for holding the work upon the table during 0 the sewing operation. My invention, however, is intended to be used in connection with a shoe sewing machine in which. the

V work supporter table is movable toward and from a cooperating presser foot, and the 0 specific embodiment of my invention illustrated the accompanying drawings is shown in connection with the outsole stitcher illustrated and described in Letters Patent of the United States granted to French and 5 Me er, October 8,1889,No.$12,-703. v

In some forms of The present invention consists in the devices and combinations of devices hereinafter described and particularly defined in the claims.

In the accompanying drawings ing the preferred form of my invention, Figure 1 is a front elevation of a portion of the sewing machine of said patent provided with my improved gaging mechan1sm; F1g. 2 is a right-hand end elevation, and Flg. 3

illustrat V a plan ofmy gaging mechanism shown in connection with such co6perating parts of said patented machine as are necessary to a full disclosure of my invention.

In the accompanying drawings, the work support 1 is mounted upon the work support carrying lever 2 pivoted at 3 on a stationary part of the machlne in substantially the manner illustrated and described in said" patent. The feed slide 4 mounted in a suitable guideway in a stationary part of the machine is actuated by the feed'lever 5, which is pivoted at its outer end upon'the feed slide guide 6 and carries upon its inner end a cam roll 7 which engages acam path 8 in the feed cam disk 9. I The feed slide and its actuating mechanism constitute the feeding ineans for feeding the work to the stitch forming mechanism. Feed regulating means is provided which, in the illustrated embodiment of my IIIVGIliZlOIl, consists in the lever 10 pivoted at 11 to the feed slide, and provided with a bolt 12 which engages the slot in the feed lever 5,

thearrangement being such that when the lever 10 is pushed rearwardly'the length of the stitches'is increased, and when thelever '10 is pulled forward the length of the.

stitches is diminished. The needle l3, and 14, looper 15, shuttle l6 and take-up 16) are or may be the same asillustrated in said patented machine.

The gage of my invention is pivotally mounted the work support carrying lever 2, movable with and independently of one end of the rock shaft mounted in a bearing 19.

to or formed integral with the work fsupport.

the free end of which engages a -notch in" the end of a cotiperating lever 21 secured in turn upon the track skate- 22} revolubly 17 in the illustrated embodiment upon. I 100' work support The gage l7,i ssecured to evolubly rise and fall in said socket.

mounted in a bearing 23 secured to a stationary part of the machine conveniently the under side of the feed slide guide (3. In order that the movements of the work support shall not 'substantially' change the 3 position of the gage with relation to said work support, I have arranged the cooperating ends of the

lovers

20 and 21 so that they engage each other apveniently upon the short shaft 27 mounted in abearing 28 secured to the bearing 29 of the main shaft 30 of the machine. A hand lever 31 is secured to the connecting rod 25 so that the gage may be operated'by such hand lever if desired. The upper leg of the bell crank lever 26 is provided with a socket which receives the shank of a bolt 32. In the bottom of the socket is placed a light spiral spring 33 which permits the bolt 32 to The head of the bolt 32 is bifurcated and to it is pivoted the end of the rod 3st whichpasses through a hole in the stud 35 pivotally secured to and dependent from the lower side of the hand lever 10, said rod 34 being provided with tappets 36 which consist of split col-.

lars adjustably secured to said rod 34 by means of bolts 37. The position of the gage 17 may be varied with relation to the work support 1 by moving the handle 31 forward or backward, thereby through the connecting rod 25, lever 24, rock shaft 22, lever 21, lever 20, and rock shaft 18 moving the gage to the desired position. v

The operation of my improved gaging mechanism is as follows: The operator will present a shoe to the machine, entering it at the end of the shank portion, the feed regulating lever 10 will be moved to its rear position, thereby lengthening the stitches and causing its stud 35 to engage one of the tappets 36 to move the gage l7 backward through the mechanism above described so that the seam will lie at a certain distance from the edge of the sole. As soon as the sewing of the shank of the. shoe is com leted the operator will move the feed re uating lever 10 forward, thereby'decreasing the length of the stitches and causing the stud 35 to engage the forward tappet 36, thereby moving the gage l7 forward and causing the seam to he closeto the edge of the sole. The operator may vary the posi tion of the seam with relation to the edge of l i i l l the sole independently of or in connection with the length of the stitches, that is to i say, it it is desired to change the position of the seam with relation to the edge of' the sole at any time without chan ing the length of the stitches, he may adjust the ,e'age by means of the hand lever 31 without adjusting or varying the length of the stitches. When the sewing of the forepart is completed the operator will again move the 'leed regulating lever backward, thereby lengthening the stitches and moving. the

gage 17 backward s'othat the seam shall lie at a greater distance from the edge of the sole than during the sewing of the forepart.

My invention is not limited to the specific emlmdiment thereof illustrated in the acr-mnpanying drawings, as the same may be constructed differently or embodied in other kinds of shoe sewing machines-without departure therefrom.

.llaving thus described my invention, I claim as new and desire to secure by Letters Patent of the United tn'tates:--

1. A. lock-stitch shoe sewing machine, having, in combination, a curved hook-needle, a looper, a shuttle, a movable work support mounted upon a stationary part of the machine, a i'novahle gage carried by said support, and means for moving the gage to vary the position of the seam during the sewing chine, a movable edge gage carried by said support for engaging the edge of the sole of a shoe resting on the Work support, and means for moving the gage to vary the position of the seam with relation to the ed 'e of the sole during the sewing operation, substantially as described.

3. A shoe sewing machine, having, in combination, stitch forming mechanism, feeding means, feed regulating means, a movable work support, a movable gage carried by said support, connected-means for moving the gage and operating the feed regulating means, substantially as described.

4:. A shoe sewing machine, having, in combination, stitch forming mechanism, feed ing means, feed regulating means, a mova blework support, a movable edge gage carricd by said support for engaging theedge of the sole, of a shoe resting on the work "support, and connected means'for moving the V gage to vary the position of the seam with relation to the edge of the sole during the sewii'ig operation and for operating the feed regulating means to vary the len th of the stitches, substantially as describe 5, A shoe sewing machine, having, in combination, stitch forming mechanism, a movable work support, a gage movable with and means for moving the gage with relation to the work support to vary the position of the seam during the sewing operation, substantially as described.

6. A shoe sewing machine, having, in combination, stitch forming mechanism, feeding means, feed regulating means, a movable work support, a gage movable with and independently of the work support, con nected means for moving the gage with relation to the work support to vary the position of the seam during the 'sewing operation, and for operating the feed regulating 'meansto vary the length of the stitches, substantially as described.

7. A shoe sewing machine, having, in combination, stitch forming mechanism, a work support, a movable member upon which'the work support is carried mounted upon a Y stationary part of themaehine, and a gage movably mounted on the said movable member, substantially as described.

8. A shoe sewing machine, having, in combination, stitch forming mechanism, a work support, a movable membercarrying the 'work support mounted upon a stationary part of the machine, a gage carried by the said movable member but movable with respect thereto, means for moving the movable member and the Work support and. gage carried thereby, and independent means for moving the gage with respect to the movable member and the work support, substantially as described.

9. A lock-stitch shoe-sewing machine having, in combination, a curved hook needle, a

looper, a shuttle, a pivotally-mounted work support movable toward and from the work, a gage pivotally mounted on the work support, and mechanism for moving the gage arranged to be unaffected by the pivotal movements of the work support, substantially as described.

10. A lock-stitch shoe-sewing machine having, in combination, a curved hook. needle, 9. looper, a shuttle, and a work support movf able toward and from the work, a movable edge gage carried by the work support, and means for moving the gage during the sewing operation, substantially as described.

11. A lock-stitch shoe-sewing machine having, in combination, a curved hook needle, a looper, an awl, and a shuttle located on the same side of the work as the needle, a work support engaging the work on the opposite side from .the needle and movable toward and from the work, a gage engaging the edge of the shoe sole and arranged to partake of the movements of the work support, and means for moving the gage transversely with respect to the work support, substan tially as described.

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

ARTHUR ERNEST JERRAM. Witnesses:

ARTHUR BATES, T. S. SHANLER.