US1166957A - Device for placing and retaining insoles on lasts. - Google Patents

Description

L. S. WIGNOT. v DEVICE FOR PLAYCING AND RETAINING INSOITES 0N LASTS.

' APPLICATION man JUNE 30. 1915.

1,166,957, Paten'tgd Jan. 4, 1916.

Will

T" YEL- ELF I monly employed and will serve to prolong UNITED s'rATEs PATENT OFFICE.

LEONARD 8.,WIGNO'1, or sr. CHARLES, mssounr, assrenon or ONE-HALE T0 LUCY MARIE WIGNOT, or sr. enemas, mssoum.

I To 'wllo m it concern:

Be it known that I, LEONARD S. W'roNo'r,

a citizen of the United States of America, residing at St. Charles, in the county of St. Charles, Stateof Missouri, have mvented certain new and useful Improvements in Devices for Placing and Retaining Insoles on Lasts, of which the following is a spec1- fication.

This invention relates to improvements 1n devices for properly placing an insole on a shoe last and retaining the same during the lasting and making operation, a prlme object of the invention being to afford a simple, durable and inexpensive structure for the purpose described which can be easily incorporated into the style of last now comits lire.

In the manufacture of shoes 1t 1 s now the usual practice, before the pulling-over and lasting operation, to secure the insole to' the last by means of several tacks which are driven through the insole (along the center line thereof) and into the bottom of the last, the metal plate covering the latter being slotted for this purpose. It is the practice to remove these tacks before the shoes leave the factory as, if they are allowed to remain, there is danger of an injury being done to the feet of the wearer, and for this purpose it is necessary to employ one or more persons, depending upon the quantity of shoes produced. Obviously, the cost of first insertlng and subsequently removing these tacks is considerable when considered in the aggregate and it will also be appreciated that this continuous insertion and withdrawal of tacks will in time so disintegrate the wood of the last as to render it unfit for use. Having in view these facts, I

have produced a last comprising devices quent steps in the manufacture of the shoewhich render unnecessary the use of tacks and slotting of the covering plate, and which further insure that the insole will assume the proper position above said plate and remain in that position. during the subse- In the drawing hereto annexed, wherein like numerals refer to like parts throughout the several views, Figure 1 is a plan view of the preferred form of my invention, with the top plate partly broken away; Fig. 2, a side elevation thereof; Figs. 3 and 4 crosssectional views taken along line 3-3 of Specification of Letters Patent.

' Application filed June so, 1915.: Serial m. was.

nnvIcE roa rmcrive Ann nnrnnune msoLEs onmsrs.

Patented J an. 4, 1916.

Fig. 1'; Fig. 5, a fragmentary detail view serving to illustrate the conformation and relation of certain parts hereinafter described; Fig. 6, a plan view of the last as the same appears with the top late complete; Fig. 7, a side elevation o a modification of the invention; and Fig. 8, a fragmentar detail view illustrating the conformation of one of the-holding clips and its relation to the edge of the top plate.

Referrin to the accompanying drawing, numeral 1 indicates the body of the customary wooden last and 2 the comparatively heavy metal plate which isusually formed in two sections and fixed upon the last by means of screws 3. Having first removed said plate, I form in the Wooden portion of the last a small circular channel extending from side to side and insert adjacent the ends thereof cam-disks 4 and 5 each of which is provided with a square-cut aperture for the reception of a square shaft 6 whose opposite extremities are tapered as at 7, 7 to fit within the open end of a detachab'le key 8. In order to prevent lateral movement of shafts 6, I form at the center thereof a circumferential groove indicated by numeral 9 and project the shank of a screw 10 within said groove, the screw passin through the channel aforesaid at one si e of said shaft. These steps having been taken, the last is then cut at four (4) different. points to provide slots 11, 12, 13, and 14, the bottom of each of which is downwardly inclined from the median line of the last (as shown in Figs. 3 and 4) so as-torender them of greatest depth at the edges of the last. At the inner end of each of said slots spring- metal clamps 15, 16, 17 and 18 are secured by means of screws 19, and it will be observed that the free extremity of each of said clamps is rebent over plate 2 whose edge is provided with shallow recesses 2Q through which the clip is projected as best given a half turn which serves to force cam-- under surface of clamps 15 and 16, whereby the latter are raised shown in Fig. A) to "permit the insertlon therebeneath of the edge of the insole, said key being subsequently turned to its original position thus permitting. said clamps to descend upon the sole.

In the modification shown in Figs. 7 and 8 stationary clamps 21 soldered to the under surface of plate 2 are employed in lieu disks 4 against the of the spring-clamps hereinbefore described,

the clamps 21 being located at the same points on the last as described with reference to the spring-clamps and normally pro jecting thereabove a suficient distance to ermit of the insertion of the insole edge.

u this form of the invention it will be noted that a sharpened pin 22 rojects upwardly from the heel portion and thls serves, when a hammer blow is directed upon the portion of the last thereabove, to supplement the action of theclamps 21 in preventing accidental longitudinal movement of said sole.

Having thus fully described my invention,

what I claim as new and desire to secure by Letters-Patent is 1. A last having a plurality of sole-retaining clamps disposed adjacent to the edge of the bottom thereof.

' 2. A last having a plurality of resilient sole-retaining clamps disposed adjacent to the edge of the bottom thereof.

3. A last having a metal plate provided with marginal recesses; aflixed upon the bottom thereof, and a plurality of sole-retaining clamps projecting throughsaid recesses from beneath said plate.

4. A last having a metal plate provided with marginal recesses; aiiixed upon the bottom thereof, and aplurality of resilient sole-retaining clamps projecting through said recesses from beneath said plate.

5; A last having a metal plate affixed upon the bottom thereof, a plurality of sole-retaini clamps dispose beneath said plate extenmg over the edge thereof, means for the bottom thereof, a plurality of sole-retaining clamps disposed beneath said plate extending over the edge thereof, means for retaining the gripping portion of said clamps against said plate, a revoluble shaft projecting through said last beneath said clamps, cam-disks mounted upon said shaft adapted to raise "said portion of certain of said clamps above said plate to permit the insertion of an insole, and means for operating said shaft.

A last having a pair of sole-retaining clamps disposed at opposite sides thereof between the widest part of the ball of the last and the narrowest portion of the shank thereof, and a pair of said, clamps disposed between the widest part of the heel of the last and the narrowest portion thereof, whereby the sole may be easily removed when desired.

8. A last having ametal plate affixed upon the bottom thereof, a plurality of resilient sole-retaining clamps disposed beneath said plate extending over the edge thereof, means for retaining the gripping portion of said clamps against said plate, a revoluble shaft projecting through said: last beneath said clamps, cam-disks mounted upon said shaft adapted to raise said portion of certain of said clamps above said plate to permit the insertion of an insole, and means for operating said shaft.

- LEONARD S. WIGNOT. Witnesses: A

- WM. WAYE, Jn,

RAYMOND WAYE.

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