US1263361A - Sole-leveling machine. - Google Patents

Description

W. C. BAXTER.

SOLE LEVELING MACHINE.

APPLICATION man AUG-19. 1915.

.. 2 SHEETS-SHEET r Patented Apr- 23, 191's.

W. C, BAXTER.

SOLE LEVEHNG MACHINE.

APPLICATION FILED AUG. 19. 1915.

Patented Apr. 23, 1918.

2 SHEETS-SHEET 2.

n STAT S PATEN WILLIAM C. BAXTER, OF BEVERLY, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW JERSEY,

A CORPORATION OF NEW JERSEY.

SOLE-LEVELING MACHINE.

To all whom it may concern Be it known that I, VILLIAM C. BAXTER, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Sole-Leveling Machines; and I do hereby declare the following to be a full, clear, and exact descrip- The present invention is embodied in a machine of the type shown and described in the patent to Baxter No. 1,208,895, granted December 19, 1916, and is designed primarily for use in connection with this type of machine.

The object of the present invention is to provide an improved form of shank pressing pad and actuating mechanism therefor mounted upon the shoe supporting jack and cooperating with the jack to position the shankpad in proper operative relation to the shoe sole in any adjusted position of the jack. With this object in view the varlous features of the invention consist in certain novel features of construction, combinations and arrangements of parts hereinafter described and claimed, the advantages of which will be obvious to those skilled in the art from the following description. It will be obvious that although the present type of shank pad and actuating mechanism is especially useful in connection with the type of machine above referred to, certain features of the invention are capable of a general application.

In the accompanying drawings illustrating the preferred form of the invention;

Figure 1 represents a side elevation of a shoe supporting jack with the improved shank pad shown in connection therewith; Fig. 2 is a front elevation of a portion of the jack shown in Fig. 1; Fig. 3 is a top plan partly in section of the actuating mechanism for the shank strap; and Fig. 4: is a section upon the line l4 of Fig. 1.

The shoe supporting jack shown in the shoe bottom.

illustrated embodiment of the invention is of the type disclosed in the application above referred to having a toe post 1 and a heel post 2 fulcrumed upon the toe post at 3 and moved toward and from the toe post by a threaded adjusting member 4. The jack is mounted to oscillate about a jack supporting shaft 5 and is connected in the usual manner with the jack actuatingmechanism (not shown). In this type of machine the shoe supporting jack cooperates with a leveling roll indicated at 6 toshape the shoe sole into conformity with the last and it is desirable to provide a shank pressingpad which operates in conjunction with the leveling IOll to shape the shank of the sole by a direct pressure. The shank pressing pad furthermore tends to secure the lasted shoe in posiiion upon'the supporting jack and prevent a movement of the shoe under the action of the leveling device. According to the present invention the shank supporting pad is adjusted automatically in accordance with thesize adjustments of the jack to position the pad in the proper operative relation to the shank of the shoe sole. To this end a shank strap 10 is yieldingly connected at its opposite ends with the two arms of an actuating lever 12. The connection between each end of the shank strap and the corresponding armfof the actuating lever comprises a tension spring 13 which is threaded ment in two directions of the tension spring and shank strap to permit the shank strap to conform to varying inclinations of'the In order to retain the stud 20 in place and to permit the convenient de- Specification of Letters Patent. Patented Apr, 23, 1918 Application filed August 19, 1915. Serial No. 46,273. I

tachment of'the shank strap from the connected mechanism a flat'spring 21 is secured 'to the head 17 and projects through a slot in the head intoan annular recess formedin the stud to retain the stud in its inserted position when the parts are connected with one another. The threaded stud 14: projects from an L-shaped head 22 which is provided with a laterally extending stud 23 received in. a corresponding opening formed in an arm of the actuating lever and secured in place by a headed fastening 24: threadedly received in the interior of the stud 23, as shown in Fig. 4 of the drawings. The actuating lever 12 is fulcrumed at the rear end upon opposite sides of the toe post 1 and at its front end is connected with a toothed locking segment 25 rigidly secured at its lower end to an arm 26 projecting from the heel post The actuating lever is provided with a box 27 which embraces the segment 25 and prevents a longitudinal movement of the actuating'lever relative to the segment, but permits the lever to be moved freely back and forth over the segment. The actuating lever is conveniently locked to the segment by a latch pin 28 slidingly supported in the lever and actuated by a pivoted head 29 provided with a finger latch 30 which extends beneath the handle 31 of the 25 lever in position to be conveniently grasped by the operator, as will be obvious to those skilled in the art. It will be noted that the segment 25 is provided with a ratchet toothed face 32 to retain the lever in a de- 30 pressed position and with a slot 33 at the upper end of the segment which retains the actuating lever in an elevated position during the jacking of the shoe. In order to cause theposition of the shank strap to be 35 automatically adjusted in accordance with the size adjustment of the jack the arms of the actuating lever are fulcrumed upon blocks 35 which are slidingly supported in recessed slides 36 formed upon opposite sides of the toe post 1. Each slide is provided with a recess 37 which coincides substantially with the arc of a circle taken about the fulcrum 3 of the heel post as a center. With this construction the oscillatory movement of the heel post toward and from the toe post causes a like adjustment of the fulcrum of the actuating lever 12 to position the shank strap in the proper operative relation to the shank of a shoe without altering the angular 5 position of the actuating lever relative to the locking segment. The shank strap exerts a direct pressure upon the shank of a sole to shape the sole into conformity with the last and in order to cause the shank strap to impart the desired curvature a yielding form indicated at 38 is conveniently secured to the under side of the strap and is shaped to conform to the desired shape of that portion of a shoe sole with which it engages. In the present invention also the shank strap is con venlently employed to prevent the leveling roll from engaging with and becoming disfigured or marred by the nails in the heel seat of the shoe and to thisend the shank strap is provided with an extension 39 which projects over the heel seat of the shoe, as shown clearly in Fig. 1.

According to the preferred mode of operation the shoe supporting jack is first adjusted in accordance with the size of the shoe to be operated upon, this adjustment of the jack serving to correspondingly adjust the position of the shank strap. It will be noted that a movement of the heel post serves to adjust the fulcrum of the actuating lever through the locking segment 25 and box 27 and this movement of the lever shifts the position of the shank pad. After the shoe has been jacked the shank pad is positioned upon the shoe sole with the extension 39 projecting over the heel seat and the actuating lever is then depressed to clamp the shank pad upon the sole and 1mpart a yielding pressure to the sole through the tension springs connected to opposite end's of the shank strap. Upon releasing the handle of the actuating lever it is locked in operative position by the latch pin 28 engaging with the face 32 of the locking segment. Owing to the pivoted connectlons between the ends of the shank strap and the actuating lever the shank strap is enabled to assume any position with relation to the shoe sole without distorting the connection between the shank strap and actuating lever.

While it is preferred to. employ the specific construction and arrangement of parts shown and described, it will be understood that this construction and arrangement is not essential except so far as specified in the claims, and may be changed or modified without departing from the broader features of the invention.

The invention having been described, what is claimed is;

1. A sole leveling machine comprising a toe post, a heel post, mechanism for relatively actuating the toe and heel posts, a shank strap, an actuating lever for the shank strapfulcrumed uponthe toe post, and connectlons between the actuating lever and heel post for adjusting the fulcrum of the actuating lever in accordance with the posi tion of the toe and heel posts.

2. A sole leveling machine comprising a toe post, a heel post, mechanism for relatively actuating the toe and heel posts, a shank strap, an actuating lever for the shank strap fulcrumed upon the toe post, a locking segment secured to the heel post, and con nections between the actuating lever and locking segment for preventing a longitudinal movement of the lever relative to the segment.

3. A sole leveling machine comprising a toe post, a heel post fulcrumed upon the toe post, mechanism for moving the heel post. 7 toward and from the toe post, a shank strap, an actuating lever for the shank strap fulcrumed upon the toe post, a locking segment rigidly secured at the lower end to the heel post and connections between the actuating lever and locking segment.

4:. A sole leveling machine comprising a toe post, a heel post, mechanism for relatively actuating the toe and heel posts, a shank strap, an actuating lever for the shank strap fulcrumed at one end upon the toe post, a locking segment secured to the heel post and a box connected to the opposite end of the actuating lever and embracing the locking segment.

5. A sole leveling machine comprising a toe post, a heel post fulcrumed' upon the toe post, an arc slide mounted upon the toe post and having its center coinciding substantially Withthe fulcrum of the heel post, a shank strap, an actuating lever for the shank strap fulcrumed at one end upon the sllde,

and connections between the heel post and 20 actuating lever for adjusting the fulcrum of the lever in the slide.

6. A sole leveling machine comprising a heel post, a toe post, mechanism for relatively actuating the heel and toe posts, a 25 WILLIAM C. BAXTER.

Copies of this patent may be obtained for five cents each by addressing the Commissioner of Patents,

Washington, D. 0."

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