US1129883A - Heel-seat-lasting machine. - Google Patents

Description

R. P. MOFEELY. HEEL SEAT LASTING MACHINE. APPLICATION P ILED JAN. 29, 1914.

mgmaj Patented Mar. 2, 1 915.

2 SHEETS-SHEET 1.

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R. F. MoFEELY. HEEL SEAT LASTING MACHINE.

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APPLICATION FILE-D JAN. 29, 1914.

' Patented Mar. 2, 1915.

2 SHEETS-SEEBT 2.

War/1 W- provements in Heel-Seat-Lasting "iii 1 a RONALD r. McFEJELY, or BE ERLY, assaonosnrrs, nssreuoa T0 UNITED snon aracnmnay compan or PATERSON, NEW JERSEY, a CORPORATION or NEW JERSEY. j

EEEL-SEA'I-LASTING MACHINE.

Patented Mar. 2, i915.

Application filed January as, 1914. swarm. 815,302.

To all whom it may concern:

Be it known that I, RONALD F.- MCFEELY, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Im- Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machinery for use in the manufacture of shoes and is herein illustrated as embodied in apparatus for stretching shoe uppers and shaping shoe upper materials to lasts.

In my prior application for United States Letters Patent Serial No. 512,904, filed August 14, 1909, for improvements in assembling and lasting machines, there is disclosed a last holder and an upper pulling gripper operatively connected therewith and arranged to engage the forepart of the upper and stretch the upper forwardly to tighten the upper materials around the rear part of the last and hold them for the operation of a heel embracingfband, heel seatvlasting wipers and a heel seat tacking mechanism.

In the use of the machine it has been found that there is a tendency for the front ends or wings f the heel stifiener to sag downwardly. The upper end linings also do the same to a less extent in the shank portion of the shoe. This tendency renders It has heretofore been proposed to pro-- vide an assembling and heel seat lasting machine with shank grippers which would close upon the upper materials and pull them into place and hold them during the heel seat lasting operation. The use of manually operated grippers, however, decreases crating on a shoe and having a tendency to cause downward displacement of heel stiffener wings, of means for preventing such displacement. Said means may conveniently comprise opposed clamps-which will advantageously be self adjusting to the shape and size of the shoe and will be constructed and arranged to force the upper materials, including the stifiener wings, against the sides of the last with sufficient pressure to prevent the wings from sliding down and which, during the heel seat lasting operation, will hold the upper materials at or near their edges in approximately the relation to the shank portion of the last which said materials are to occupy in the finished shoe. I

The stiffener wing clamps, as they will be called for purposes of designation, will conveniently be arranged to be operated at the will of the workman and they may be set against the shoe prior to the upper stretching operation with suflicient force to restrain the wings from sagging down without objectionably interfering with the longitudinal stretching of the upper by the toe gripper, and said clamps may thereafter be set more firmly against the sides of the last. They preferably will not extend over the shoe bottom in a way to interfere with quick observation of the condition of the upper materials or readjustment of them if, for example in a particular shoe, the

stifi'ener wings require to be pulled up after the upper stretching operation.

The machine of said prior application includes a toe end abutmentoperatively connected with the toe gripper and serving to hold the last from forward and upward displacement while the upper is being pulled forwardly by the gripper. Modern lasts'vary considerably in spring or angular relation of the plane of the bottom of the forepart to the plane of the heel seat. For properly pulling and drafting the uper forwardly the toe gripper requires to Be adjusted, vertically in accordance with the spring of the last and also, of course, the toe end abutment requires to be positioned in accordance with the vertical location of the toe end of the last. In accordance with a further feature of this invention provision is made'for vertically adjusting the toe end abutment with relation to the last holding means. In the illustrated embodiment of the invention both the abutment and the toe gripper are so adjusted. I have discoveredthat this adjustment may advantageously be made in a circular path and that the location of the center of the are under the heel seat of the last appears to give the best results in adapting the gripper location to the spring of the last.

These and other features of the invention will appear more fully from the following detailed description and will be pointed out in the appended claims.

In the drawings, Figure 1 is a side eleva tion, partly in section, of a heel seat lasting machine equipped with a preferred embodiment of this invention; Fig. 2 is a perspective view of the improved assembling and tensioning mechanism of the invention; Fig. 3 is a transverse section showing the means for operating upon the shank portion of the shoe; and Fig. 4 is a view showing structural details of several parts which will be described.

The jack post is indicated at 4 and is resiliently upheld in a telescoping lower section 2 by a spring 6. Prior to the operation of the machine the post moves freely in the part 2 to permit the shoe to be brought into the proper vertical position. After the ma chine starts, however, the post is connected with mechanism for producing a strong upward thrust to hold the shoe against the blow of the drivers, 'as is fully explained in the application above referredto. upper end of the post 4 a heel pin 8 is pivoted and means is provided for holding the pin in a position inclined toward the rear as is shown in Fig. 1. A frame 12 is mounted upon the post and a rack and pinion and suitable locking means is provided for vertically adjusting and securing the frame upon the post.

Arms 14 project laterally from the frame 12, Figs..2'and 3, and pivotally support levers 18 which carry at their upper ends stiifener wing clamps 20. These are preferably formed as thin plates of spring steel which may be slightly convex on the side toward the shoe to fit more perfectly the contour of the last.- The plates 20 are attached to-studs In the 22 which are seated rotatively in sockets formed in the upper ends of the levers 18. The lower ends of the levers-are connected by toggle members which comprise rods 24 and which pass freely through blocks 26 pivoted to the lower ends of the levers 18, heads being provided upon the upper ends of the rods to prevent their drawing through the blocks 26.

The lower ends of the rods 24 and 25 are pivotally connected together and compression springs 28 are interposed between flanges formed on the lower ends of the rods and the blocks 26. Upon the pivot 30 of the lower ends of the rods 24 and 25 a handle 32 is mounted which is rigidly connected, as by pins 34, with the end of one of the rods 24 and 25, as for example, the rod 25. The rod 25 and the handle 32 are therefore practically a single lever with a fulcrum at the pivot of the block 26 through which the rod 25 passes. When the handle 32 is lifted, therefore, the toggle formed by the rods 24 and 25 will be straightened and the plates 20 will be forced against the stifiener wings to clamp them against the last. When the plates engage the shoe, the springs 28 begin to yield and the force applied to the shoe is therefore determined by the strength of these springs. When the toggle has been straightened and the pivot 30 has passed beyond the center, the toggle will tend to press against the frame 12 and will remain locked in operative position. I

It will be observed that the plates 20 will automatically position themselves to apply equal pressure to the opposite sides of the shoe as the levers 18 are free to swing about their pivots even after the plates 20 have been brought into engagement with the shoe. Furthermore, the pressures exerted upon the two sides of the shoe at the shank against the ends of the heel stiffener will be equal whether or not the strength of one of the springs 28 is the same as that of the other spring 28 for the weaker spring will be compressed in the operation of straightening the toggle until its tension is equal to that of the stronger spring and the same pressure will be exerted upon each side of the shoe. The plates 20 also move on their pivot studs about vertical axes to bring their engaging faces parallel with the side of the last against which they press.

The frame 12 has a forward extension in which is formed a segmental guideway 40 which is T-shaped in cross section and in maaaaa tudinally of its axis to engage and disengage teeth at 48 formed respectively on the thumb head and in a relatively stationary part secured to the member 42. This construction provides a convenient means for adjusting the toe rest vertically and locking means for holding the toe rest member 42 in adjusted position upon the segment 44. The curve of the segment is preferably struck from a point beneath the heel seat of the last and this center may be substantially coincident with the pivot of the last pin so that the plane of the shoe bottom may be adjusted about a center located substantially at the crown of the last. The toe rest carrying member 42 is formed with a forward projection 50 in which is provided a T-slot 52 in which the toe rest bracket 54 is mounted to slide. On the bracket 54 a member 56 is mounted, the under face of the horizontal portion of which forms a rest against which the bottom of the forepart of the shoe is positioned and the rear face of the inclined portion 57 of which is adapted to engage the toe portion of the last inside the upper and to hold the bottom of the last pressed against the horizontal portion. With the last mounted upon the last pin 8 and the toe portion. held between the surfaces 56 and '57 as described, the upper assembled upon the last is seized by the gripper 58, 59. To effect this the lever 60 is first turned about its axis to free a holding catch from a segmental ratchet 62 and'is then raised to its upper limit which acts to open the jaws 58 and 59 of the gripper so that the upper which lies beneath the member 57 may be interposed between them. The lever 60 is then depressed, the jaws 58 and 59 automatically closing and gripping the upper, and further movement of the lever 60 serving to tension the upper longitudinally of the last. i

The wings of the heel stiflener may be clamped against the sides of the last either before or after the tensioning of the upper longitudinally by operation of the lever 32 to bring the presser plates 20 into operative engagement with the shoe and if desired the clamp may be partly closed before or during the tensioning operation and fully closed afterv the tensioning is completed. The bracket 54 is movable in the slot 52 to adjust the toe engaging members 56, 57 to any length of last. The member 54 is held from outward movement by a pawl which cooperates with teeth 64 on the under face of the projection 50. This pawl is arranged to be automatically released by the upward movement of the lever 60 to open the gripper.

The post 2 is mounted for lateral swinging movement relatively to the machine by the construction shown in Fig. 4. The lower end of the post 2 is cylindrically rounded, as shown, and seats in a correspondingly curved step 68 formed in the member 70, Fig. 1. The post 2 is held in the step 68 by a plate 72 having a projecting port on 74 formed to engage in a recess 76 in the lower end of the post 2, the plate 72 being secured to the member 70. A rod 78 engages the lower end of the part 4 which telescopes with the part 2 and carries a collar80 between which and the base of the post 2 is provided the spring 6 which is sufficiently strong to sustain the weight of the jack mounted on the part 4 but which permits the operator to depress the jack to bring the plane of the heel seat into the proper relationship to the operative parts of the machine. The lower end of the rod 78 is jointed at 82 to permit relative lateral movement of the post 2 in the seat 68.

Having; described my invention, what I claim as new and desire to secure by Letters Patent of the United States is l. A; machine of the class described having, in combination, means for supporting a shoe, means operating upon the shoe and having a tendency to cause the Wings or sag downwardly along the sides of the last,

and means arranged for use prior to the.

operation of said last mentioned ,means and adapted for yieldingly clamping the upper materials including said stiffener wings to the side faces of the'last to prevent such downward sagging.

2. A machine of the class described having, in combination, means for supporting a shoe, means operating upon the shoe and having a tendency to cause the wings or front end portions of theheel stiffener to sag downwardly along the sides of the last, and means arranged for use prior to the operation of said last mentioned means and self-adaptable to the size and shape of the side faces of the last at the shank for clamping the upper materials including the said stiffener Wings to the side faces of the last in the shank to prevent such downward sagging.

3. A machine of the class described having, in combination, means for supporting a shoe, and meansself-adaptable to the size and shape of the side faces of the last at the shank for clamping the upper materials including the heel stiffener wings to the side facesv of the last in the shank to prevent downward sagging of the stiffener wings.

4. A machine of the class described having, in combination, means for supporting a shoe, means operating upon the shoe and in operating upon lasts of varying sizes.

3 intermediate the operating device and the 5. A machine of the class described having, in combination, means for supporting a shoe, and means to clamp the upper materials including the heel stiffener wings to the side faces of the last in the shank, said clamping means comprising levers carrying opposed clamping members, toggle mechanism connecting said levers, an operating device for the toggle mechanism, and cushioning means clamping devices arranged to permit the toggle to be straightened into self-locking position in operating upon lasts-of varying SIZES.

' 6. A machine of the class described having, in combination, means for supporting a shoe, means operating upon the shoe and having a tendency to cause the wings or front end portions of the heel stiffener to sag downwardly along the sides of the last, and means arranged for use prior to the operation in. which such sagging occurs to clamp the upper materials including said stiffener Wings to the side faces of the last at the shank, said means comprising levers, resilient clamping devices arranged on the levers for self adaptation to varying shapes and sizes of shoes, and means for operating said levers to force the clamping devices simultaneously into stiffener-wing holding positions.

7. A machine of the class described having, in combination, means for supporting a shoe, means operating upon the shoe and -having a tendency to cause the ,wings or front end portions of the heel stiffener to sag downwardly'along the sides of the last, and means to clamp the upper materials including the heel stiffener wings to the side faces of the last in the shank, said means comprising levers, resilient clamping devices arranged on the levers for self adaptation to varying shapes and sizes of shoes, and means for operating said levers to force the clamping devices simultaneously into stiflener wing holding positions.

8. A machine of the class described having, in combination, means for supporting .sag downwardly along the sides of the last,'

and'means for yieldingly clamping the upper materials including said stiffener wings to the side faces ofthe last to prevent such downward sagging, and means for lasting the upper materials, including the edge of the heel stiffener in the rear of the clamping means, inwardly overthe heel seat of the shoe and fastening them while the clamps hold the stiffener wings.

9. A machine of the class described hav ing, in combination, means for supporting a shoe, a gripper connected with the shoe support and arranged for engaging the forepart of a shoe upper and straining the shoe v upper forwardly about the heel portion of the last, means for clamping the heel stiffener wings against the side, faces of the shank portion of the .last to hold saidwings in position for lasting the heel seat, and mechanisms for lasting and tacking the heel seat while said gripper and clamps hold the shoe stock in position for lasting.

10. A machine of the class described, having, in combination, means for supporting a shoe, a gripper connected with the shoe support and arranged for engaging the forepart of a shoe upper and straining the shoe upper forwardly about the heel portion of the last, means for clamping the heel stiffener wings against the side faces of the shank portion of the last to hold said wings in position for lasting the heel seat, and mechanisms for lasting and tacking the heel seat, said shoe support, together with the gripper and the stiffener wing clamps still holding the upper materials, being movable together into the field of operation of the lasting and tacking mechanisms from a position remote from the lasting and tacking mechanisms where the shoe is accessible for inspection with relation to the shoe stock all around the heel seat.

- 11. A machine of the class described, having, in combination, a support for a last, gripping devices constructed and arranged for gripping the toe of the upper, operatin means to actuate said gripping devices an the last relatively for pulling the upper lengthwise of the last and holding the upper with its marginal edge under lengthwise strain to permit portions of the upper materials to be secured to an innersole while the upper is under such strain, and means for clamping the upper materials against the side faces of the last at the shank for maintaining the upper materials in the desired relation to the plane of the .heel seat for the securing operation.

12. A machine of the class described having, in combination, means for stressing the upper forwardly on a last and holding it under tension, automatic means for lasting the heel seat portion of the shoe while such tension is maintained by the stressing means, and means arranged to be operated for clamping the upper materials including the heel stifi'ener wings to the side faces of the shank portion of the last and maintaining the stiffener wings at the desired elevation relative to the plane of the heel seat during the operation of the heel seat lasting means.

113. A machine of the czass described having, in combination, means for supporting a stretch the upper lengthwise of the last,'and

an abutment'for engaging the toe end of the last to resist the forward pull of the toe gripper, said abutment being adjustable relatively to the shoe support in a vertical iLI'C to adapt it to the spring of different asts. Y a

v 14. A machine of the class described hav. ing, in combination, means for supporting a shoe, a gripper operatively connected with the shoe support and arranged in position to engage the forepart of the shoe upper and stretch the upper lengthwise of the last, and an abutment for engaging the toe end of the last to resist the forward pull of the toe gripper, said toe gripper and said abutment being adjustable together in a vertical are relatively to the last support about a center located under the bottom face of the rear part of the last. Y

15. A machine of the class described having, in combination, means for supporting a shoe, a gripper operatively connected with the shoe support and arranged in position to engage the forepart of the shoe upper and stretch the upper lengthwise of the last, an abutment for enga ing the toe end of the last to resist the orward pull of the toe gripper, said abutment comprising a rigid' supporting arm and a plate pivotally connee-ted with the supporting arm for self adjustment to adapt itself to the plane of the bottom face of the toes of lasts of different shapes and a hook on said plate to extend iiownwardly across the toe end face of the ast.

16. A machine of the class described hav ing, in combination, means for supporting a shoe, a gripper operatively connected with the shoe support and arranged in position to engage the forepart of the shoe upper and stretch the upper lengthwise of the last, and an abutment for engaging the toe end of the last to resist the forward pull of the toe gripper, said toe end abutment being shaped to engage the bottom face of the last and to extend downwardly across the end face of the last and under the toe end of the last.

17. A machine of the class described having, in combination, a-support for the heel end of a shoe including'means for holdin the toe end of the shoe resiliently elevate means for engaging the bottom of the forepart of the shoe, and means for adjusting the forepart engaging means about a center located substantially at the crown of the last.

18. Amachine of the class described having, in combination, means for supportinga shoe including means for sustaining the rear part of a last and yieldingly pressing the toe end of the last upwardly, a toe bottom abutment for determining the plane of the forepart of the last and means connecting said abutment with the heel sustaining means and permitting adjustment of the abutment in a vertical arcabout an axis located near the rear part sustaining means.

19. A machine of the class described having, in combination, means for supporting a last, overlaying and tacking means arranged relatively thereto for lasting the flange of the upper materials including the heel stiffener over the rear end of the heel seat and fastening said materials to the shoe innersole, and means arranged to engage the opposite sides of the shoe in the shank prior "to such overlaying operation for restraining the wings of the heel stiffener at each side of the shoe from movement downwardly in response to the action of the overlaying means on the stiffener flange at the rear end of the heel.

20. A machine of the class described having, in combination, means for supporting a last, means acting to shape the upper materials including the heel stiffener to the vertical curvature of the heel end face of the last adjacent to the heel seat, and means adapted to become operative in advance of said shaping means for restraining the wings of the stifi'ener from'moving downwardly in response to the action of the shaping means upon the stiffener at the rear end of the heel.

stiffener wings against the sides of the last and restraining them from moving downwardly in response to the shaping action on the stifi'ener at the rear end of the heel.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

' RONALD F. MoFEELY.

Witnesses:

Cnnsrmz E. Rooms, EDNA A. i on COETGCt-iOfl in Letters Patent No. 1,129,883.. m

- for an improvement in Heel-Seat-Lasting Machines,

It is hereby certified that in Letters Patent No. 1,129,883, granted March 2,

1915, upon the application of Ronald F. McFee1y, of Beverly, Massachusetts,

an error appears in the printed specification requiring correction as follows: Page 1, line 32, for the word end read and; and that the said Letters Patent should-be read with this correction therein that the same may conform to the record of the case in the Patent Ofiice. i

Signed and sealed this 7th day of September, A. D., 1915.

[SEAL] J. T. NEWTON,

Acting Commissioner of Patents.

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