US549124A

US549124A - Welt-beveling attachment for sole-sewing machines

Info

Publication number: US549124A
Authority: US
Publication date: 1895-11-05
Anticipated expiration: 1912-11-05

Description

3 'Shts-Sheet 1.

(No Model.)

J; B. HADAWAY, WELT BEVELING ATTAOHMENT FOR SOLE SEWING MACHINES. No. 549,124.

Patented Nov. 5, 1895.

ANDREW BGRMIA 3 Sheets-Sheep 2';

- (No Moam" JLB. HADAWAY, WELT QBEVELING ATTACHMENT IOR SOLE SEWING-MACHINES;

Patented N v. 5,1895;

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(No Model.) 3 ShetsSheet 3.

. J. B. HADAWAY; WELT BEVELING ATTACHMENT FOR SOLE SEWING MACHINES.

1 Io.549, 1 24 Patented Nov. 5, 1895.

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UNITED STATESFPLATENT OFFIQE.

JOHN B. HADAWAY, OF BROOKTON, MASSACHUSETTS.

WELT-BEVELING ATTACHMENT FOR SOLE-SEWING MACHINES.

SPECIFICATION forming part of Letters Patent No. 549,124, dated November 5, 1895.

7 Application filed June 24, 1895. Serial No- 553,826. (No model.)

To all whom it may concern.-

Be it known that I, J OHN B. HADAWAY, of Brockton, in the county of Plymouth and State of Massachusetts, have invented anew and useful Welt-Beveling Attachment for Sole-Sewing Machines, of which the following, taken in connection with the accompanying drawings, is a specification. 7

My invention relates to a welt-beveling attachment for sole-sewing machines; andit consists in certain novel features of construction, arrangement, and combination of parts, which will be best understood by reference to the description of the accompanying drawings and to the claims hereto appended, and in which my invention is clearly pointed out.

I have illustrated my invention as applied to the Goodyear sole-sewing machine shown and described in the Letters Patent No. 47 3,87 0, issued to the Goodyear Shoe Machinery Conipany as the assignees of Z. T. French and William 0. Meyer, dated April 26, 1892, to which patent reference may be had for any information relating to partsof the sewing-machine not shown in the accompanying drawings, in which Figure 1 is a front elevation of so much of the sewing-machine as is necessary to illustrate the application of myinvention thereto. Fig. 2 is a side elevation of the same parts looking toward the right of Fig. 1. Fig. 3 is an elevation of the same parts looking in the opposite direction. Fig. 4 is a plan of the same with the presser-foot removed. Fig. 5 is an inside elevation of the upper portion of the awl-segment-carrying stand as modified to receive my welt-beveling attachment. Figs. 6, 7, and 8 are respectively a plan, a side elevation, and an end elevation, of the cuttercarrying stock. Figs. 9, 10, 11, 12, and 13 are respectively a plan, a front elevation, a left-side elevation, a right-side elevation, and a sectional front elevation of the cutter drawn to an enlarged scale. Figs. 14, 15, and 16 are respectively a plan, a front elevation, and a left-side elevation of the knifeguard drawn to an enlarged scale. Fig. 17 is a transverse section of the work support or table on line a: a: on Fig. 4, and Figs. 18 and 19 are respectively a plan and a side elevation of a modified form of the work-support and the cutter-carrying stock. Fig. 20 is an elevation of a portion of the sewing-machine with invention applied thereto and showing a section of a shoe in position for being operated upon.

In the drawings, A represents a small portion of the fixed frame of the head of the machine in which is set the stud 17, upon which is mounted loosely the needle-carrying segment 1), to which is secured the curved hooked needle 11 in the same manner as shown and described in the patent before cited.

B is a slide fitted to asuitable guideway, (not shown,) so as to be movable horizontally to feed the work, and provided at its inner end with the upright or arm B having set in its upper end the fixed stud a, upon which is mounted loosely the awl-segment a, to which is securedthe curved awl a and d is the work-support secured to the frame A in a fixed position and is provided with a slot for the passage of the awl and needle.

The parts so far described are constructed and operate substantially as shown and described in the Letters Patent before cited, except that the work-support d has a portion of its upper bearing-surface cut away to form the rabbet c, which may extend the whole length of the table portion of said support, as shown in Fig. 4, or a portion only of said length, as shown in Fig. 18, and also except that the stand B has an inclined dovetailed groove (2-. formed in its inner face to receive the cutter-stock A, which is firmly secured therein by the clamping-bolt f.

The cutter-stock A has the dovetailed shank g to fit the dovetailed groove e in the stand B and the vertical plate or flange g, in the front face of which are formed two vertical grooves g g to register the cutter and cutter-guard.

O is the cutter, having a cutting-edge c slightly inclined to a "horizontal plane and arranged oblique to the line of feed of the work, as shown in Figs. 4 and 18. The cutter 0 is also provided with the flange c having on its back side the rib c to fit the groove 9 in the stock A, where it is secured by the clamping-screw 0 as shown in Figs. 1, 2, 3, and 4.

D is the knife-guard, provided with the flange d and the rib d to fit the groove 9 and secured to the stock A by the clampingscrew (Z the holes through the flanges c and (1 being elongated, so that said knife and guard may be adjusted vertically to adapt the machine to work o'f 'difierent thicknesses.

In the patent hereinbefore cited the presserfoot lever e was mounted upon a stud set in a boss on the stand B and moved laterally with the said stand; but in the Goodyear machine as 110w constructed said lever is mounted upon a stud set in some fixed portion of the frame of the machine and has only an up-and-down movement and clamps the work firmly when the stand 13*, the awlsegment, and the awl are being moved backward after having fed the work preparatory to puncturing the work for a new stitch and feeding it another step. This presser-foot lever e, as modified in the machines as now built, is shown in Fig. 2, and has secured thereto the presser-foot 6 which is constructed and operates substantially as in the patent cited, except that it has no lateral movement and is arranged to clamp the work firmly while the needle is in the work and the feed mechanism is being retracted as above described. 7

The operation of my invention is as follows: lVith the several parts of the machine in the positions indicated in the drawings the presser-foot has been unlocked preparatory to feeding the work. The first movement is the feeding of the work a distance equal to the desired length of stitch, thereby carrying the knife C toward the left of Figs. 1 and at a corresponding distance without changing the position of its cutting-edge relative to the end of the out last made thereby. When the feeding is completed, the presser-foot is depressed upon the work and locked in position. The awl is then withdrawn, during which time the needle enters the work preparatory to the formation of a stitch. The motion of the feed-slide is then reversed and the awl and its segment are returned to their original positions, carrying with them the cutter O, the cutting-edge of which severs a section of a beveled shaving from the welt of a length corresponding to the length of the stitch being sewed. The cutter C has formed on its front end the depending lip 0 having a vertical cutting-edge, which serves the purpose of insuring the complete severance of the skived shaving, even if the knife should be adjusted to a higher level than is desirable. By virtue of the cutting-edge of the knife 0 being oblique to the line of feed of the work, with the end next the line of stitches in advance when operating to cut the shaving from the welt, said knife acts with a drawing out and serves to draw the work upon the work-support instead of tending to crowd it off the work-support.

In Figs. 18 and 19 a modification is illustrated in which the knife-guard D, movable with the cutter C, is dispensed with by cutting the rabbet c in the rear portion of the upper face of the work-support only to a point near the right-hand end of the slot 3 through which the needle and awl pass in piercing the work, the remaining unrabbeted portion of the upper surface of the work-support serving as a fixed guard to gage the thickness of the shaving to be cut from the welt.

In another application of mine of even date herewith I have illustrated, described, and claimed a modified form of a welt-beveling attachment for sole-sewing machines in which the cutter is stationary and the bevel.- ing is done by feeding the work against the cutting-edge of said cutter.

What I claim as new, and desire to secure by Letters Patent of the United States, is--- 1. In combination with the stitch forming mechanism of a sewing machine, a work support; mechanism for feeding the work; a knife located just in the rear of the needle and awl slot in said work support and movable with said feed mechanism and adapted to cut a section of a beveled shaving equal to the length of a stitch from the upper surface of the welt at each retraction of said feed mechanism.

2. In combination with the stitch forming mechanism of a sewing machine, a work support; mechanism for feeding the work a knife located just in the rear of the slot in said work support and having its cutting edge slightly inclined to a horizontal plane and movable with said feed mechanism; and adapted to cut a section of a beveled shaving of a length equal to the length of a stitch from the upper surface of the welt at each retraction of the feed mechanism.

3. In combination with the stitch forming mechanism of a sewing machine, a work support; mechanism for feeding the work; a knife located just at the rear of the slot in the work support, and having its cutting edge slightly inclined to a horizontal plane and oblique to 1 the line of feed of the work and movable with said feed mechanism, and adapted to cut a section of a beveled shaving of a length equal to j the length of a stitch from the upper surface 10f the welt at each retraction of the feed mechanism.

I said rabbet or cut away space, wherebyasection of a beveled shaving of the length of a lstitch is cut at each retraction of the feed mechanism.

5. In combination with the stitch forming mechanism of a sewing machine, a work support having the rear or inner portion of its up per surface rabbeted, or cut away, as described; mechanism for feeding the work; a knife carried by said feed mechanism and movable therewith, and located above said rabbet with its front end adjacent to the slot in said support, for thepassage of the needle, and having a portion of its cutting edge at its mechanism; and a guard or gage to determine the thickness of said shaving.

In testimony whereof I have signed my name to this specification, in the presence of 15 two subscribing witnesses, on this 21st day of June, A. D. 1895.

JOHN B. HADAWAY.

Witnesses:

N. O. LOMBARD, WALTER E. LOMBARD.