US622643A - Shoe-treeing machine - Google Patents

Description

A. n. TYLER, 1n. SHOE TREEING MACHINE.

- [Application filed Sept. 2, 1897.) (No Model.)

2 Sheets-Sheet I.

Fig/ i- TNE norms warns co. vnm-ourna, WASHINGTON, u. c.

Patented Apr. 4, I899.

I Enron.

' ABEL D. TYLER, JR, OF BEo'oKToN, MASSACHUSETTS;

SHOEMTREEING MACHINE.

SPECIFICATION forming part of Letters Patent No. 622,643, dated April 4, 1899-.

Application filed September 2, 1897. serial No. 650,408- (No model.)

To all whom it may concern.-

Be it known that I, ABEL D. TYLER, J r., of Brockton, in the county of Plymouth and State of Massachusetts, have invented a new and Improved Shoe Treeing Machine, of which the following is a specification.

Referring to the accompanying drawings, Figure 1 is a side elevation of my improved last-supporting device, showing the internal parts in dotted lines and the levers and treadles for operating the same. Fig. 2 represents a top View of my last-arm with a last attached thereto. Fig. 3 is asectional elevation through line 3 3 in Fig. 2. Fig. 4 is a cross-section through line 44in Fig. 3. Fig. 5 is a cross-section through line 5 5 in Fig. 3.

In the drawings illustrating the principle of myinvention and the best mode now known to me of applying that principle, A is the lastarm support, which may be of the form shown or any other suitable form. B is the last-arm, D the last, here shown as a transversely-divided and hinged last, although it may be the ordinary block-last, if so desired, so far as the broader embodiment of my invention is concerned, and E is a lever which connects the clamping mechanism, hereinafter described, with the treadle-rod F and t'readle F.

The last-arm supportA is formed with a suitable bearing afor the journal endb of the lastarm 13, but may be otherwise of any suitable form or construction. Last-arm B is formed with a longitudinally-extending chamber 1), at the rear of which is the journal end I), and in front of which, in the solid fiat end portion 5 is the spindle-recess 19 which opens on the front end wall of the arm and leads back into chamber 1). The front end of the arm is preferably fiat and beveled upwardly and outwardly from the heel side toward the toe side, so as to keep the toe of the last tipped outwardly, so that the operator may work on the vamp with greater convenience and 00111- fort, and is provided with an outwardly-proend of which projects from the rear end of p the last-arm. To the rod B there is connect= ed a slide-bar B conveniently formed with side dovetails U, which run in the lengthwise extending dovetail grooves a within chamber b. The connection of rod B and slide-bar 13 1s conveniently made by forming the bar 13 with an ear b having an orifice through which the rod B freely passes, a coiled spring 12' being mounted between the outer end of ear I) and an abutment 6 fast on the inner end portion of the rod. A coiled spring 19 is also mounted between ear I) and the rear end wall of chamber 1). Rod B is a sliding fit in the orifice in the car, as well as in its bearing in the journal end 17. The front portion of the slide-bar is provided with a boss 11 upon which rests the tail 6 of the pivoted clutch B, the front end of which is formed with a hook 12 and is in line with the spindle-recess Z7 Last D is preferably a transversely-divided and hinged last comprising the quarters-block d (or heel-piece) and the vamp-block d (or fore part) and a suitable hinge d whereby the quarters-block and vamp-block are hinged together, and the last is shortened when the Vamp-block is tipped forward and the removal of the shoe from the last greatly facilitated.

In the quarters-block at there is rigidly secured a spindle D, projecting outwardly from the top thereof. The foot of spindle D is inserted some distance into the quarters-block and there secured by a transverse fastener or rivet d so that the spindle and quarterspiece are rigidly connected. Spindle D is provided with a notch d with which the hook 11 engages when the last is secured on the last-arm. In the upper wall of the quartersblock there is also provided a recess d to re ceive the steady-pin b the top of the quarters-block being preferably flat to fit smoothly and snugly against the preferably flat outer end of the last-arm. Journal end I) of the last-arm is preferably formed with a circumferential groove 1) within the bearing a, and a screw a is provided to turn through bearing a to engage with the bottom of the groove 12 When journal end I) of last-arm B is in place in its bearing a, the shoulder 11 of the arm is against the inner side of the bearing a and the arm restrained from back motion when the reciprocating rod B is pulled outwardly. Last-arm B, as shown, is rotatively mounted in the bearing a, though a rocking movement would suffice. The cooperating groove Z7 and screw form a convenient means for preventing the last-arm B from being pulled forwardly in the bearing a. To mount the last on the last-arm, spindle D is inserted in spindle-recess b the steady-pin b then entering the recess (1 in the quartersblock and the top of the quarters-block bearing against the outer end of the last-arm. When this insertion is made, slide-bar B is in such a forward position that the clutch B is free. By moving the rod B outwardly the slide-bar B is drawn toward and under the tail of clutch B and the boss 12 then pushing the tail 0 of the clutch outwardly and moving the hook 12 of the clutch into engage= ment with the notch on the spindle and drawing the top of the quarters-block tight against the opposed end of the last-arm.

When the shoe is on the last, (and it is frequently made on the last,) the operator pushes or pulls the last, thereby rocking or rotating the last-arm and getting all parts of the vamp and quarters into convenient position for rubbing and smoothing or other desired treatment.

To move rod B rearwardly to lock the spindle in the last-arm, a great variety of devices may be used; but I hereby show a treadle mechanism already described. A spring f is desirably employed to return the lever E, and a serrated vertical plate f is shown for confining the treadle in a depressed position, the edge of plate f on the treadle engaging with a tooth or plate f to hold the treadle down. When the treadle is released, the springs 17 and b expand and throw boss b forwardly out of engagement with the tail of the clutch, and the tail of the clutch then falls by gravity or the front end of it is lifted by the expansion of the spring I) to throw the clutch out of engagement with the spindle. By this con struction lasts with the shoes on themmay be rapidly put on and taken'off the machine. 7

It is sometimes desirable to put on or take off shoes from the lasts after they are locked -on the last-arm, and while an ordinary blocklast may be used, if desired, a transverselydivided hinged last is highly advantageous,

as it greatly increases the speed of the operator in making the changes. As the heel part or quarters-block is rigidly clamped to the.

last-arm, a pull on the heel portion of the shoe will tend to'tip the fore part over the,

last-arm, and thereby shorten the last, so that the shoe may be taken off easily and without distorting the shoe.

The machine shown and thus far described is especially adapted for use in treating the leather on the last, and it is desirable in these operations that the last-arm should be horizontal; but features of my invention are capable of embodiment in various other forms .and in machines adapted for presenting sole ing last-arm may be detachably clamped in many ways other than that shown without departure from my invention. The springs b and 17 give a resiliency to the action of the connected rod B and slide-bar B that is more desirable than a rigid connection between the two parts, and the use of the clutch-returning spring 11 is highly desirable, as the clutch is thereby lifted instantly the treadle is released whatever the position of the-last-arm on the lengthwise axis. As the boss 79 is drawn rearwardly against the under side of the tail b of the pivoted clutch the latter draws the spindle D inwardly, tightly looking the last in place on the last-arm. As shown in the drawings, the slide-bar B and rod B are at their extreme rearward posi* tions and springs 19 and b are compressed. The rod B rotates freely in the cross-piece Z2 and the loop I), to which the lever E (or other power) is applied. A cover b is con Venient for the opening into chamber Z2.

\Vhat I claim is- 1. The combination with a last-arm and a transversely-divided, hinged last;the arm and heel part of the last being provided with (3061)- crating locking members, of means for looking and unlocking said members, the fore part of the last being free for tilting.

2. The combination of a last-arm having in one end a tubular bearing for the spindle of alast; alast provided withaspindle asteadypin entered in the arm and last; a spindleclutch; and means to actuate the clutch to lock and unlock the spindle in the arm; the steady-pin being rigidly secured at one end.

3. The combination of a last-arm support; a rocking last-arm journaled in said support; a spindle connecting the heel part of the last with the arm in the line of the length thereof; and a transversely-divided hinged last; the fore part of the last being free to tilt and the last being at an obtuse angle to the lengthwise axis of the arm.

4. A last-arm having a last-receiving surface inclined to the last; an inwardly-extending spindle-bearing opening on said inclined surface; a steady-pin projecting from said surface; and a spindle-clutching mechanism Within the arm.

5. Alast-arm having alast-receiving socket; a pivoted spindle-clutch; interior guideways for the endwise-reciprocating slide-bar; an endWise-reciprocating slide-bar having at one end a portion to engage the tail of the clutch;

and at the other end an enlargement; an end- IIO Wise-movable rod mounted in an opening name to this specification, in the presence of through the rear of the arm and in a hole two subscribing Witnesses, on this 21st day of through said enlargement; a spring between August, A. D. 1897.

said enlargement and the inner end of the rod ABEL D. TYLER, JR. 5 a spring between said enlargement and an Witnessesi opposed portion of the arm. E. A. ALLEN,

In testimony whereof I have signed my EDWARD S. BEACH.

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