US1399772A - Last and device for attaching heels - Google Patents

Description

C. HUNT.

LAST AND DEVICE FOR ATTACHING HEELS.

APPLICATION FILED APR-7,1919.

Patented Dec. 13, 1921.

Fig.1.

UNITED STAT, s PATENT OFFltt.

crtnsrnnnun'r, or LYNN, Mas er-Inserts, ASSIGNOR T0 ninrnn srron maonnvnnv CORPORATION, or ra'rnnson, NEW Jersey, A conronarron or NEW .innsnv.

LAST AND DEVICE FOR ATTACI-IING HEELS.

To allwhom it may concern; I u i 1 Be it known that I, CHESTER HUNT, a citizenof the United States, residing at Lynn, in the county of Essex and State of ldassachusetts, have invented certain Improvements in Lasts and Devices for Attaching Heels, of which the following description,

in connection with the accompanying draw ings, is a specification, like reference char- ,acters on the drawings indicating like, parts in the several figures. i

The present invention relates to making shoes andtespecially to the attachment of heels to shoes. i i 1 The process of attaching heels known as inside nailing usually necessitates re-lasting. That is, the shoe is partly made upon a. last, then separated therefrom and the heel attached, andthen replaced upon the same last orupon a diiferentonefor subsequent operations. The necessaryoperations of withdrawing the last and re-lasting involve considerable time. and labor and also frequently causeginjurious strainsupon the shoe. To avoid entire removalof a last ,it has heretoforel been proposed to use lasts having separable fore and, heel parts andto remove the heel part to make room for elements of a heeling machine'and then re-insert said heel part, atter the inside nailing of. the heel has been effected. An objection to this; how ever, is not only thetime and labor involved but also the reduction of the lasting pressure and the slackening up of the longitudinal tensionof the shoe at atime when the materials of ,the. shoe have not become perinanentlyset to the shape ofthe last, j

The present invention provides 1 for using the heel seatportionof a last as an element ,of heeling mechanismin such manner that the lasting tension of the shoe is unaffected.

An advantage of the illustrated construction and arrangement is that the heeling nails can be driventhrouglr as close tothe margin ,ofthe heel as desired whatever the width andlength of the heel, 5 1 it In another. aspect, my-present invention contemplates thepartial making of a shoe upona last,then displacing the cone, of the last; and driving heeling nails throughthe heel seat portion of the last, and then con tinuing the making operationsgall without disturbing thelasting tension of the shoe. An 1 important feature of 1 my invention @Mconsistsf in a lastghaving. a cone portion Patented heels, ieei.

Application filed April 7, 1919. Serial No. 287,972.

which may be displaced, leaving a heel seat portion which will retain the shoe under asting tension, said heel seat portion being constructed and arranged to permit heeling nails to be driven through it from the inside of the shoe.

To facilitate such use of the last and at the same time to facilitate ready separation of the shoe and last subsequently, the illustrated last has a plurality of heel sections each of which is, hinged to the forepart so that one may be displaced to permit heel attaching nails to be driven through the other, while the other part also may be swung upwardly preliminarily to pulling the last.

Other objects and features of the invent1on will be apparent from the following description when considered in connection with the accompanying drawings and the novel features of the invention will be pointed out in the claims.

Figure 1 of the drawings is a side elevation of my improved last, with a dotted line indication of the position occupied by the cone 1 during the inside nailing operation;

Fig. 2 is a perspective view. of the heel part sections of the last, the cone section being broken out;

Fig. 3 is a sectional elevation of the last, with a shoe thereon, and with the parts of the nailing mechanism in the positions heel section ofthe last, in the relative positions which they occupy when thenails are being fed to position in the holes of said 1 heel section of the last.

In the illustrated embodiment of the invention, the last comprises a forepart 12 wwhichiis usually made of wood, said forepart carrying a pin 13 upon which is mounted a somewhat disk-shaped lug 14: of the section 15 of the heel part. The cone section 16 of the heel part ofthe last has a rib or plate 17.Wl1l0h terminatesin a somewhat disk-shaped lug 18 mounted on the pivot or hinge pin 13, said plate 17 being fitted in a recess of the cone 16 and secured therein by suitable means such as transverse pins 19. i i

The cone 16 and the heel seat section 15 i have suitable cooperating devices to prevent lateral displacement of one relatively to the other, such devices being illustrated as comprising dowels 20 projecting from .the cone 16 to engage sockets 21 in the section\ 15.

The sections 15, 16 are divided on substantially horizontal line, the plane of the line of division being preferably at substantially the greatest width of the heel part of the last so that the section 15 will transversely and longitudinally fitthe lower heel seat portion of the shoe whereby said section 15 has an area ample to enable the nail holes 22', the object of which will be presently described, to be formed so near the margin of the section 15 that nail passing in parallel relationship through the holes 22 will enter those portions of aheel substantially the same as has heretofore been customary when inside nailing is performed after removal of a last as hereinbefore described.

The hinge connection between the forepart 12 and the sections 15, 16 is such as to enable the cone section 16to be swung up, substantially as indicated by dotted lines in Fig. 1 and full lines in Fig. 3, far enough to enable the portions of a heel nailing mechanism, presently to be described, to be inserted past the section 16. To enable heeling nails to be first deposited or inserted in the holes 22 and then driven down into a heel, I employ such mechanism as is illustrated in Figs. 3 and 4t. Said mechanism comprises a nail guide block 23 carried by the lower end of a suitably actuated plunger 24:, the block 23 having dowels 25 relatively spaced the same as the dowels 20 of the cone 16 so that, when the block 23 is brought into relationship with the heel section 15 of the last, as shown in Figs. 3 and 4, the said dowels 25 will enterthe sockets 21 of the heel section 15 to render it certain that the nail'throats 26 in said block 23 will be in accurate alinement with the holes 22.

Communicating with the threats 26 are branches 27 through which nails are supplied as presently described. A driver block 28 having a top plate 29 and carried by a sleeved plunger 30 slidably engaged with the plunger 2 1is provided with drivers 31. Leading from a suitable nail feeding mechanism are tubes 32. In some respects the nail guide block 23 and the driver block 28 with its drivers and the nail supply tubes 32 are substantially the same in structure and operation as explained in Letters Patent No. 591,366, granted Oct. 5, 1897, on application of H. V. lVinter. So far as the present invention is concerned, however, the nails might be supplied by hand and "the placing of thejnail driving mechanism in proper position relatively to'the last, and theoperation of such mechanism might be effected by hand.

Inoperatiomthe shoe i placed in proper relationship with a heel which latter may be mounted upon a suitable support indicated at- 33 in Fig. 3, and the cone section 16 swung up to the position shown in said Fig. 3. Then, either by raising the shoe and heel and the support or" the latter into proper position relatively to the nail upplying and driving mechanism, or by passing the nail supplying and driving mechanism down into the heel portion of the shoe past the tiltedup cone section 16, the parts of the supplying and nailing mechanism will be caused t assume the relationship indicated in Fig. 41. Nails are then supplied through the tubes 32 so that they slide down through the throats 26 in block 23 and into the nail holes 22 in the heel section 15 of the last, the points of the nails then simply bearing upon the insole. Then the sleeve 30 is aetuated so as t depress the driver block 28 (or the other parts might be elevated) so that the drivers 31 will force the nails into the heel as indicated in Fig. 3.

After this operation, the members of the nailing mechanism above section 15 are removed from the position shown in Fig. 3 and the cone 16 then swung back to the position shown in Fig. 1 and subsequent operations are then performed upon the shoe.

It will now be understood that the section 15 of the last not only serves as means for permanently holding the upper of the shoe under lasting tension without interruption during theheeling operation, but also temporarily constitutes the nail block or holder of a nailing mechanism. Moreover, said section 15, being the lower and wider section of the heel part of the last, enables the nail pockets to be so close to the outer margin thereof as to drive the nails through the inturned heel seat margin of the shoe upper.

It will be readily understood that if desired, after the completion of the shoe, the last may be removed by first swinging up the cone section 16 and then swinging up the lower section 15, both swinging upon. the same pivotal point 13, thereby reducing the frictional resistance of such movement to substantially one-half of what would be required if the heel part of the last were not divided substantially as illustrated and described.

Having now described my invention, I claim 1. In an apparatus of the class described, nail supplying and guiding means. nail driving means, and a last having a heel part provided with holes corresponding to the guiding means, and interfitting means between the heel part and the said means whereby the parts are held in proper operative relation during the drivlng of nails through the heel part.

2. A last having a heel section provided with nail holes, said section being constructed and arranged to provide the nail block of a heel nailing machine and having means for insuring alinement of its nail holes with the nail supplying elements of said machine.

A last havinga heel section provided with a series of nail holes in relative positions to direct nails driven therefrom through the heel seat margin of the upper, and having a cone section movably mounted above the first-mentioned section.

4:. A last having hingedly connected fore and heel parts, the heel part comprising superimposed individually hinged sections.

A last comprising a forepart and a plurality of superimposed heel sections individually hinged in alinement to the fore Jart. 1 6. A last comprising a forepart and a plurality of superimposed heel sections, the upper heel section being displaceable and the lower heel section having nail guiding holes.

7. A last comprising a iorepart and a horizontally divided heel part hinged thereto, the lower section of the heel part having nail apertures.

8. A last having a forepart and a heel part comprising upper and lower sections both of which are hinged to the forepart, said two sections having interengageable means to prevent relative lateral displacement.

9. A last having a forepart and a heel part comprising upper and lower sections both of which are hinged to the forepart, said two sections having interengageable means to prevent relative lateral displacement, the lower heel section having nail apertures.

10. A last comprising a forepart and two superimposed heel parts, each of the latter having a lug, and a pivot pin passing through said lugs and mounted in the foreart. p In testimony whereof I have signed my name to this specification.

CHESTER HUNT.

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