US733403A - Shoe-sewing machine. - Google Patents

Description

No. 783,403. PATENTED JULY 14, 1903.

J. LAURIN. I $1103 SEWING MACHINE.

APPLIOATION FILED OUT. 30, 1902.

N0 MODEL.

Witnesses: v C 7 [awrlik Inventor By I new Attorneys m: NORFUS vuzas cu, PNOTO-LITH nnnnnnnnnnnnnnnn cv UNITED STATES Patented July 14, 1903.

JOSEPH LAURIN, OF MAISONNEUVE, CANADA.

SHOE-SEWING MACHINE.

SPECIFICATION forming part Of Letters Patent N0. 733,403, dated July 14, 1903.

Application filed October 30, 1902. Serial No. 129,491- (No model.)

To all whom, it may concern:

Be it known that I, JOSEPH LAURIN, a subject of the King of Great Britain, residing at Maisonneuve, county of Hochelaga, Province of Quebec,Ganada, have invented certain new and useful Improvements in Outsole-Stitching Machines; and I do hereby declare that .the following is a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to boot and shoe making machinery.

The object of the invention is to provide very simple means for attaching an awl and a stitchseparator upon the awl-segment, whereby these two tools may operate simultaneously upon the outsole, and to provide such an arrangement as will enable the stitchseparator to be adjusted in a simple manner with reference to the awl.

The invention consists in a certain combination and construction of parts to be more fully described hereinafter and definitely set forth in the claims.

In the drawings, Figure 1 represents in side elevation a portion of the mechanism of an outsole-stitching machine to which my invention has been applied. Fig. 2 represents the same in front elevation, a portion of the table being shown in section, together with a portion of the awl-cap. Fig. 3 represents an awl-cap in perspective. Fig. & represents my stitch-separator, also in perspective. Fig. 5 is a perspective view of a small portion of a boot, showing the outsole, together with the separator-marks and stitches.

Throughout the drawings and specification the same figures of reference refer to like parts.

Referring to the parts more particularly, 1 represents the upper portion of a feed-slide.

It is provided with a substantially horizontal stud 2, upon which is rotatably mounted the awl-segment 3, the teeth 4 of which mesh with the teeth 5 of the awl-lever 6. To the head 7 there is pivoted at S the presser-foot lever 9. It is formed usually substantially as shown and carries rigidly at its extremity the presser-foot 9, and this lever is provided with a suitable handle 10, affording means for swinging the same upwardly upon its pivot. In proximity to the lower face 11 of the presser-foot there is mounted the table 12, which is .mounted and supported upon some part of the machine. (Not shown.)

Before proceeding to a further description of my invention it may be said that the parts of the mechanism which have already been described are commonly used in outsolestitching machines, and it may be stated here that in practice the awl-segment carries the awl and rocks to and fro upon its pivot, so as to project the awl through the throat of the table and so that it passes beyond the lower face of the presser-foot. In close proximity to this mechanism the needle and stitching mechanism are located, and the stitching op eration progresses with the punching operation of the awl.

I provide an awl-cap 13, the construction of which is most clearly shown in Figs. 1 and 3. It comprises, substantially, a small fiat plate, its outer edges 14 and 15 being formed in an arc to conform to the periphery of the aforesaid awl-segment 3 at its forward portion, at which point the cap is attached to the same by means of a suitable bolt 16. It should appear that the inner face 17 of this cap is provided on its inner edge with a laterally-projecting flange 18. This flange is adapted to rest against the side face of the gear-segment and is preferably of a height substantially the same as the thickness of the aw119, which awl is clamped between the cap and the face of the awl-segment, asindicated, the inner face 17 being provided with a shallow recess 20 to receive it. It should be Well understood that the awl is formed into an are having its center upon the axis of the stud 2, and when the parts are in the relative positions in which they are shown in Fig. 1 the awl will have pierced the outsole, which, it should be understood, is received between the upper face of the table 12 and the lower face 11 of the presser-foot, the shoe being inverted during this operation.

The outer face of the awl-cap is provided with the recess or groove 21, which is curved, substantially as shown,'about the axis of the stud 2 as a center, its upper extremity being open, as shown. Within this recess 21 is mounted my stitchseparator 2 2. As indicated, this tool comprises a flat shank 23,

which is curved to conform to the shape 0 the aforesaid recess 21. It is formed into a head 2&, having oppositely-beveled faces 25 at its extremity, meeting to form an edge 36. When placed in its recess 21 in the manner shown in Fig.1,its lowerextremitylies against the tip of an adjusting-screw 26, mounted in the lower wall of the recess 21. The shank 23 is provided with a curved opening or slot 27, through which passes a clamping-bolt 28, mounted in the threaded opening 31. This construction enables the tool to be adjusted longitudinally with respect to the awl and placed in any position desired by means of this clamping-bolt 2S, and it may be said that the inner face of the tool normally rests against the side of the aw], as shown in the full lines in Fig. 2.

The fact that stitches of different lengths are employed has led me to provide means for adjusting the separator laterally with respect to the awl. For this purpose I provide a setscrew 29, mounted in a threaded opening 30 in the shank 23. Its tip rests against the bottom of the recess 21, so that by screwing up this set-screw the head 2% of the separator may be thrown out from the awl, so that it may assume another position, such as that in which it is shown in the dotted lines in Fig. 2.

The table 12 is provided with a wide throat 31, through which passes the awl and the separator-tool 22.

At the left in Fig. 2 is shown a needle-arm 32, carrying the needle 33, which needle in machines of this class is adapted to pass through the opening made by the awl, as will be readily understood, the feeding motion operating to bring the openings made by the awl into alinement with the needle.

In Fig. 5, 33 represents the outsole of a shoe provided with stitches 34, between which are the stitch-separator marks 35, such as would be formed by the mechanism described- Briefly outlining the mode of operation of the mechanism, it may be said that the awlsegment 3, which is carried upon the horizontal stud 2, mounted in the feed-slide, is rotated orrocked to and fro by means of the lever 6. V The awl 19, which is carried under the cap 13, passes through the outsole while the same is held between the lower face 11 of the presser-foot 9 and the upper face of the table 12, with the shoe in an inverted position. By the side of the awl is carried the stitch-separator, theedge 36 of which indents the leather of the outsole between the openings which it receives by the awl. It is longitudinally adjustable with respect to the awl by means of the adjusting-screw 26 and is clamped against the awl-cap by the screw 28. In making stitches of normal length-that is, of a length substantially equal to the width of the head 24, as viewed in Fig. 2the side of the head lies against the side of the awl, as shown. N here stitches of greater length are to be made, the set-screw 29 is screwed up, so as to hold the head 24: in a removed position, such as that in which it is shownin the dotted lines of Fig. 2. In this manner the parts are adjusted so that the indentations 35 or separator-marks will occur midway between the stitches.

WVhile I have shown in the accompanying drawings the preferred form of my invention, it will be understood that I do not limit myself to the precise form shown, for many of the details may be changed in form or position without affecting the operativeness or utility of my invention, and I therefore reserve the right to make all such modifications as are included Within the scope of the following claims or of mechanical equivalents to the structures set forth.

Having described myinvention, what I consider as new, and desire to secure by Letters Patent, is-- 1. In a shoe-sewing machine, the combination of an awl-carrier, an awl carried thereby,

an awl-cap, a stitch-separator independent of.

said cap and movably mounted therein,means for securing said cap to said carrier and clamping said awl therebetween, a screw mounted in the cap and passed through a slot in said separator, and independent means for longitudinally adjusting said separator, substantially as described.

2. In a shoe-sewing machine, the combination of an awl-segment pivoted to rotate about a fixed center, an awl carried thereby, a table through which the awl is adapted to project, a block having a longitudinal groove in one face adapted to receive the awl, and having an arcuate groove in its opposite face, an arouate stitch-separator having a chisel-shaped edge adapted to fit in said last-named groove, means for securing said block to said segment and clamping said awl therebetween, said separator having a longitudinal slot, a screw passing through said slot and fixed in said block, whereby to secure said separator in position at one side of said awl, a screwsocketed in said separator and abutting against said block, whereby to adjust the distance of said separator therefrom, and means for longitudinally adjusting said separator, substantially as described.

3. In combination, an awl-segment, an awl, an awl-cap having a recess on the inner face thereof adapted to receive said awl, means for clamping said awl to said awl-segment, a stitch-separator carried by said awl-cap and having a slot disposed substantially in the direction of movement of said awl, a bolt passing through said slot and adapted to attach said stitch-separator to said cap, and an adj LISLlHg-SCI'GW mounted in said separator the tip whereof abuts against said cap whereby said stitch-separator may be adjusted latera 1y.

4:- In combination, an awl-segment, an awl, an awl-cap having a recess on the inner face thereof adapted to receive said awl, a bolt adapted to clamp said cap to said awlsegment, said cap having an arcuate recess in 0nd adjusting-screw adapted to adjust said 10 the outer face thereof, a stitch-separator separator laterally with respect to said awl. mounted in said recess and having an arcuate In witness whereof I have hereunto set my slot therein, a clamping-bolt passing through I hand in the presence of two witnesses.

5 said slot adapted to clamp said stitch-separater to said cap, an adjusting-screw carried JOSEPH LAURIN' by said cap at the lower extremity of said re- Witnesses: cess and adapted to adjust said stitch-sepa- J. A. MARION, rater longitudinally in said recess; and a sec- T. MYNARD.

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