US1112152A - Guard for outsole and welt stitching machines. - Google Patents

Description

G. E. MONGEAU.

GUARD FOR OUTSOLE AND WELT STITGHING MACHINES. APPLICATION FILED P131316, 1911 1,1 12,152. Patent ed Sept. 29, 1914.

cm s. W, BYQ/QJWLM 6 ATTORNEY.

55 threadin GEO'BGE ELI MONGEAU, F LOWELL, MASSACHUSETTS.

GUARD FOB OUTSOLE AND WELT STITCHING MACHINES.

Specification of Letters Patent.

Patented Sept. 29, 1914.

Application filed February 16, 1911. Serial No. 608,999.

To all whom it may concern Be it known that I, Gaonon ELI MONGEAU, a citizen of the United States, residing at Lowell, in the county of Middlesex and 5 Commonwealth of Massachusetts, have invented a certain new and useful Impr0vement in Guards for Outsole and \Velt Stitching Machines, of which the following is a specification. f 1 This invention relates to guards for outsole and welt stitching machines used in the manufacture and repairing of boots and shoes'and is particularly useful in the repair work of small shops, where frequently the workmen are less s'kilful than those employed in large shoe-factories.

The machines referred to use two threads,

one of which is drawn up by the needle throu h'a hole in the work resting on a table and through a slot or throat in said table, the-hole in the work being previously made by an awl which passes up through said v throat. The table in many cases hasa very slight vertical thickness and in press ng the .we t against a gage, with which the machine .is provided above the table, the upper is likely to project unde'rsaid table andto be pierced by the needle or by the awl, or, if not sopierced, to be scratched or marked in such a manner as to injure theappearance of the finished shoe, and a similar injury is likely to be caused while stitching the outsole to the welt. Y

The end of the table which points in the direction opposite to that in which the work travels while being stitched, is sharp and frequently catches under the toe-cap (where such is used) of the shoe being operated on and interferes with the feed, seriously in- 40 juring the shoe or breaking the awl which notonly makes the hole through the leather but also feeds the work.

The object of this invention is to prevent such piercing and marking the upper below .45 the table and this without the necessity of fitting the sole on a last while attaching the out-sole to the welt; to enable an inexperienced operator to stitch closer to the upper,

when necessary, without increasing the liability of the upper being caught by the awl or needle below the table and without risk of piercing his fingers and to prevent the point of the table from catching the toe-cap. This device does not inter erewith the of the looper or lower threadguide an need not be removed for that purpose. Said device may be used on a variety of shoe-sewing machines but is herein represented as attached to what is known to the trade as the Goodyear outsole lockstitch machine In the accompan ing drawing, Fi ure 1 is a front elevation 0 such parts of a s oe-sewmg machine as is necessary to the understanding of my invention, showing said invention attached to the edge-gage; Fig. 2, a right side elevation of said invention with the edge-gage and adjacent ,parts; Fig. 3, a left side elevation of a part of the frame, the table, a vertical cross-section of apart of a shoe to which the out-sole is being sewed, the edgegage, awl and needle and the upperend of my improved guard interposed between the table and the shoe-upper; Fig.4, a left side elevation of the guard detached; Fig. 5, a plan of the guard and part of the table; Fig.6, a horizontal section on the line 6 6 in Fig. 1 of the guard and edge-gage.

'A indicates a part of the frame of the maohine; B, the table which supports the work;-.C, the edge-gage supported upon a stand '0 which is adjustable to vary the distance of the stitches from the upper; D, the presser-foot; cl, its holder; E, the awl; F, the needle; S, the upper of a shoe; 8, the welt; 8 the insole; 8 the out-sole; all these parts being of the usual construction and operation. 1 1

In sewing shoes on such a machine as this invention relates to, the parts are inverted and insewing-the out-sole to the welt,.the

projecting part of the welt rests upon the tableB. w

To rotect the fingers and the uppers of shoes eing operated upon, I use a guard G. This guard is formed of metal or material capable of resisting the friction and wear of-the shoe-upper upon said guard, preferably ofhard, s ring sheet-steel and the upper portion or 'ead g of said guard extends for some distance alongthe front of the table beyond the ends of the slot 6 of said table in both directions, said slot 6 being a passage for'the awl and needle and the threads. The upper edge 9 of the guard G is very thin in order not to materially increase theminimum distance of the row of stitches from the shoe upper, and closely fits the front of the table B but does not rise above the top of the table except at the right end of said table which guide the work outof contact with a shank of the edge-gage C and the opposite side of said gum-dis cut away below the table in such a manner as to admit the fingers to thread the mach'inein the usual manner,

but not sufliciently to allow the fingers to get into the paths of the awl and needle. The guard is provided with a shank g or part adapted to be secured to a convenient part of the machine and is here represented as extending downward and as being-secured by the lower screw 0 which-secures said edge-gage to the stand c, said screw passing in the usual manner through said gage into said stand. The edge-gage is commonly adjustable to vary the distance between said gage and the path of the awl to vary the distance of the row of stitches from the edge of the out-sole andthe welt and where the guard is attached as abovedescribed, the

guard being made of slightly elastic material allows the edge gage to be adjusted in a backward and forward direction without drawing the head ofthe guardout of contact with the table or toi bring the edge 9 of said guard, out of con tact with the adjustable edge-gage;

Although the guard might be attached to any' rigid part of the sewing machine conveniently. placed for that purpose it is preferred to secure it as above described to the edge-gage. The guardis' bulged at g to to cover the pointed and prevent the toe allow snidguard to fitthe shank of the edge-gage closely over another screw 0 Fig. A 6, commonly used to secure the gage C to a stand c. The lower end of the guard is provided with anangle projection g which fits the side of the shank of the edge-gage and prevents it from being turned by the friction of the work thereon.

I claim as my invention 1. A guard adapted to be secured to a shoe-sewing machine in contact -With the work supporting table thereof and to extend below said table and having an incline to extend over the work receiving end of said table.

2. The combinationin a shoe-sewing machine with a work-supporting table having a work-receiving end, of an elastic guard adapted to press against said work-supporting table and reaching below said table in front of the awl and needle of said machine and having an incline extending over said end of said table, to direct work in front of and upon said table, and means for supporting said guard.

3. A guard of elastic sheet metal adapted to be secured to the adjustable edge-gage of a shoe-sewing machine and to press against the work-supporting table of said machine and reaching below said table and arranged in front of the awl and needle of said machine and having an incline extendin over the work-receiving endof said table to direct work in front of and upon said table, and having the edge of said guard on the side from which the work approaches bent backward to fit said adjustable edge-gage.

In witness whereof, I' have afiixed my signature in presence of two witnesses.

GEO. ELI MONGEAU.

lVitnesses: i

ALBERT M. Moons, EPHRIM WERNER.

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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