US350940A - Tack-pulling and sole-trimming machine for boots or shoes - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

J. N. MOULTON.

TACK PULLING AND SOLE TRIMMING MAGHINB FOR BOOTS 0R SHOES.

No. 350,940. Patented Oct. 19, 1886.

WITNESSES INVENTUR.

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(No Model.) 2 Sheets-Sheet 2.

J. N. MOULTON.

TACK PULLING AND SOLE TRIMMING MACHINE FOB BOOTS 0R SHOES.

No. 350,940. Patented Oct. 19, 1886.

WINVENTEI NITE STATES 'ArnNr tries.

TACK -PULLlNG AND SOLE-TRIMMING MACHINE FOR BOOTS OR SHOES.

SPECIFICATION forming part of Letters Patent No. 350,940. dated October 19,1886. Application filed February 8, 1886. Serial No. 191,183. (No model.)

To all whom it may concern.-

Be it known that I, JAMES N. MoULToN, of Haverhill, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Tack Pulling and Trimming Machines for Boots or Shoes, of which the following is a specification.

This invention has for its object to provide a machine for removing from the inner soles of turned or welted boots and shoes the lasting-tacks employed to temporarily secure the uppers to such inner soles, and also to provide a machine adapted both to remove said. tacks and to trim off the projecting edges of the upper.

To these ends my invention consists in the improvements which I will now proceed to describe and claim.

01'' the accompanying drawings, forming a part of this specification, Figure 1 represents a side elevation of my improved machine. Fig. 2 represents a front elevation of the same. Fig. 3 represents a section on line 00 m, Fig. 2, looking toward the right. Fig. 4 represents a section on line y y, Fig. 3, looking toward the left. Fig. 5 represents a section on said 'liney 3 after the tack-pulling claw has been advanced. Fig. 6 represents a detail view showing a section of a shoe in position, with a tack about to be removed. Fig. 7 represents a section of a shoe, showing the tack removed, and also showing the trimmer. Figs. 8 and 9 represent details.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents a supportingframe, having hearings in which is fitted to lo 'tate an arbor, I), having at one end a trimmer composed of one or more blades, 1;, affixed to and rotating with the arbor b, which is driven by power applied through a gear-wheel, (Z, journaled in a bearing in said frame, and a pinion, c, on said arbor meshing with said gearwheel. In the present instance the rotary trimmer is composed of three blades formed on a single plate, as shown in Fig. 2.

0 represents a lip or rest affixed to a stock, f, which is secured bya set-screw, g, in a soclc et, h, forming a part of the frame a. Said lip or rest bears against the inner sole, 2', of the boot or shoe, and its inner sideis in close proximity to the trimmer-blades, and constitutes a fixed blade cooperating therewith.

These devices constitute a trimming mechanism which in itself forms no part of myinvention, and is in common use for trimming off the edge of the upper in a welted boot or shoe and the edge of the upper and of the flap i, to which the upper is stitched in a turned shoe of the class shown in Figs. 6 and 7. In said shoe the inner sole, 6, is cut inwardly from its margin to form a flap, 2', which is turned about at right angles with the sole, and the upper i is laid against said flap and secured to the sole by lasting-tacks j prior to the operation of connecting the upper to said flap by stitches is, passing through the upper and flap, as shown. After the stitching opera tion, and while the shoe is turned inside out, the inner sole is placed in contact with the lip or rest 0, the face or side of the sole being placed against the outer side of said rest,with the flap and the edge of the upper laid thereon projecting over the upper edge of said lip, so that the rotating trimmer, cooperating with the inner side of the lip, will trim off the edges of the flap and upper, as shown in Fig. 7.

In carrying out my invention I provide a reciprocating tack-drawing device composed of a rod, m, fitted to slide in fixed guides 0p on the frame a, and a flexible spring arm or claw, q, attached to a block or holder, 1-, pivoted at s to said rod, and provided at its free end with one or more (preferably two) notches, q, the sides of which constitute claws adapted to engage the shank of a lasting-tack just behind its head and draw the tack from the boot or shoe. I also provide an oscillating arm, M, which is pivoted at t to the fixed guidep, and is adapted to vibrate on its pivot, its vibrations being limited by bolts w w, passing through segmental slots w to into the guidep. The arm a has a recess, into which the springclaw q 'PIOJBCtS, and by which said claw is guided, the under surface, a, of the arm u between the sides of said recess being curved downwardly to the outer end of the arm, and the claw bears upwardly with a yielding pressure against said curved surface, so that when the claw is reciprocated it moves in a curved path corresponding to the curvature of said surface. The outer end of the arm it has a downwardly-projecting nose, to, which, when the machine is in operation, bears upon the upper i just above or outside of the points where the lasting-tacks jare inserted. A curved spring, 19*, attached at one end to a fixed part of the frame a, (as the bearing 0,) presses downwardly on the outer portion of the arm a, giving said arm a downward yielding pressure. The block 1, which is pivoted to the rod m, and to which the spring-claw q is attached, projects between two studs, c'fonthe arm a, so that the block r and the claw attached thereto oscillate with the arm a on the pivot s, connecting said block 'to the rod m. The rod'm is reciprocated by means of a cam, d, on one side of the gear-wheel d and aspring, e, interposed between a collar, f, affixed to the rod m, and the fixed-bearing p, said spring pressing a roller, 9, on the inner end of the rod m against the cam d. The cam is formed to first move the claw outwardly at i a moderate rate, and then allow it to be moved inwardly at a more rapid rate by the spring e; The arm a is provided with a spring-latch, h, which engages with the outer end of the spring-claw q, and holds the latter depressed during a portion of its backward or tackpulling movement, as hereinafter described.

The operation is as follows: The operator holding the boot or shoe in the positionshown and described with relation to the lip or rest e and arm u, said lip bearing against the face of the sole and the nose of the arm 10 against the upper, the rotation of the gear-wheel d causes the trimmer to rotate and remove the surplus material from the upper or from the upper and the lip or flap i, and at the same time reciprocates the rod m and claw q. The claw in moving outwardly is depressed by the downwardlycurved surface a of the arm it, against which the claw bears until it projects below the nose to sufficiently to engage one of its notches with any lasting-tack j that may be in position to be so engaged, as shown in Figs. 6 and 9. When the claw reaches the position last described, the latch h springs inwardly over it, as shown in Figs. 5 and 6, and prevents the claw from spring ing upwardly during its backward movement until it has passed said latch. The back ward movement of the claw causes it to withdraw the tack with which it may be engaged, the latch causing the claw to move substantially in the direction of the length of the tack, as indicated by the arrow in Fig. 9, until the latter is withdrawn. After passing the latch and withdrawing the tack, the claw q springs upwardly against the curved surface a of the arm a, so that when the claw is moved forward it passes above the arresting end of the latch and moves in a downwardly curved or inclined path, as indicated by the arrow in Fig. 8, whereby it is enabled to engage the shank of the next tack at a'point behind its head.

It will be understood that the trimming operation progresses continuously, the operator moving the boot or shoe along until the operation is completed, and that during the trimming operation the claw moves rapidly in and out, so that it is forced against and withdrawn from the upper with suEficient rapidity to insure its engagement with all the lastingtacks that may be in theboot or shoe, although it by no means follows that the claw engages with and withdraws a tack at each outward and inward movement, the number *oflasting-tacks in a boot or shoe being usually much less than the number of outward and inward movements that the claw would make during the presentation of the shoe to the machine. The plurality of notches q in the claw, together with the rapidity of its movement, usually insures the engagement of all the tacks by the claw.

of construction herein described and shown, as these may be variously modified without departing from the spirit of the invention.

It is obvious that the tack-pulling devices may be used independently of the trimming devices. The pivoted spring-pressed yielding arm guiding the claw enables the claw to conform to the shape of the last on which the boot or shoe is held, the arm being adapted to rise and fall or move toward and from the fixed lip or rest.

I claim- 1. The combination of a fixed lip or rest, a claw and means, substantially as described, to move it toward and from a boot or shoe latory arm formed to guide the reciprocating claw downwardly during its outward movement, and having a device, substantially as described, to automatically engage with and guide the claw during the first part of its backward movement, all constructed and adapted to operate as set forth.

2. The combination of a fixed lip or rest, a claw and means, substantially as described, to move it toward and from a boot or shoe bearing against said lip or rest, an oscillatory arm formed to guide the reciprocating claw downwardly during its outward movement, and provided with a device to automatically engage with and guide the claw during the spring whereby said arm is pressed toward the fixed lip or rest, as set forth.

3. The combination of a fixed lip or rest, a rod fitted to slide in fixed guides, means, substantially as described, to reciprocate said rod, a block or holder pivoted to said rod, a flexible spring-claw attached to said block or holder, and an oscillatory arm pivoted to a fixed support and engaged, as described, with said pivoted block or holder to oscillate the latter, said arm being formed to guide the claw downwardly during its outward movement, and provided with a device to automatically engage and guide the claw during the first part of its backward movement, as set forth.

My invention is not confined to the detailsv bearing against said lip or rest, and an oscilfirst part of its backward movement, and a 4. The combination, in anorganized machine, ofa trimming mechanism having a roand guide the claw during the first part of its tary arbor and a trimmer thereon, a fixed lip backward movement, as set forth. or rest co-operating with said trimmer and In testimony whereoflhave signed my name serving as a bearing for a boot or shoe, a claw to this specification, in the presence of two 5 and means, substantially as described, to move subscribing witnesses, this 3d day of Febru- 15 it toward and from a boot or shoe bearing ary, 1886.

against saidrlip or rest, an oscillatory arm J AMES N. MOULTON.' formed to guide the reciprocating claw down- Vitnesses: wardly during its outward movement, and O. F. BROWN,

- 10 having a device to automatically engage with ARTHUR \V. ORossLEY.

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