US1928258A

US1928258A - Means for cementing soles to shoes

Info

Publication number: US1928258A
Application number: US604436A
Authority: US
Inventors: Lieberman Joe
Original assignee: LIEB CEMENT PROCESS Co IN
Current assignee: LIEB CEMENT PROCESS Co IN; LIEB CEMENT PROCESS COMPANY Inc
Priority date: 1932-04-11
Filing date: 1932-04-11
Publication date: 1933-09-26
Anticipated expiration: 1950-09-26

Description

Sept. 26, 1933. J. LIEBERMAN 1,928,258

7 MEANS FOR CEMENTING SOLES T0 SHOES Filed April 11, 1932 2 Sheets-Sheet l if /7 Joe A z'aa/v/vd/z ATTORNEY.

P 1933- J. LIEBERMAN 1,928,258

MEANS FOR CEMENTING SOLES TO SHOES Filed April 11, 1952 2 Sheets-Sheet 2 INVENTOR.

I j! Z! BY 0e Jade/72m ATTORNEY.

Patented Sept. 26, 1933 MEANS Fon CEMENTING SOLES 'ro SHOES Joe Lieberman, South Bend, Ind., assignor to Lieb Cement Process Company, Inc., South Bend, I nd., a corporation of Indiana Application April 11, 1932. Serial No. 604,436

Claims. (01. 12-128) The invention relates to means for cementing soles to shoes, and particularly to means by which half soles may be cemented to old shoes to repair 5 them. a

The principal object of the invention is to provide a device of this character by which the shoe will be completely lasted while the sole is being cemented whereby the shoe will retain its original shape and will have the appearance of a new rather than of an old repaired shoe after being half soled.

A further object is to provide a deviceof this character by which the sole, the instep and .the

upper of the shoe are lasted while the sole is being cemented to the shoe.

A further object is to provide a device of this character including a flexible last for the toe portion of the upper of a shoe which accommodates itself to the shape and size of the toe of the shoe being repaired.

A further object is to provide a device of this character having a member hinged to the sole lasting portion of the device and variably positionable to last the instep portion. of the shoe,

while the same is being repaired. v

A further object is to provide a device of this charactercomprising a last and a flexible supporting member constructed to accommodate itself 0 any desired exterior contour-of the sole of a s oe being lasted.

A further ob'ject'is to provide a device of this character comprising a sole last, an upperlast, and a heating element carried by the upper side of said sole last and positioned in spaced relation 7 to said upper last.

A further object is to provide a device of this character comprising a heating member and a sole lasting member detachably carried thereby.

With the above and other objects in view, the

invention resides in the combination and arrangeby the upper ends of said rods 13 and is prois provded with an air pocket 22 therein for pur- Figure 3 is a vertical transverse sectional view taken on line 3--3 of Figure 2.

Figure 4 is a perspective view of my improved last.

Figure 5 is a longitudinal vertical sectional view of my improved upper last.

Figure 6 is a view of the last in side elevation.

Figure 7 is a top plan view of the last.

Figure 8 is a transverse sectional view taken on line 8-8 of Figure 6.

Figure 9 is a perspect e view of the sole last.

Referring to the drawings, which illustrate the preferred embodiment of my invention, the numeral 10 designates a base on which are mounted a pair of interconnected supporting blocks 11 having ears 12 projecting therefrom. Vertical rods 13 are carried by the ears 12 and are adjustable relative thereto by nuts 14 bearing on said cars. A transverse beam 15 is carried vided with bosses 16 positioned substantially centrally above the blocks 11 for the reception of threaded rods 17 each provided with an adjustinghandwheel 18. 8 A supporting member comprising a flexible metal plate 19 carrying a rubber pad 20 is mounted on each block 11 and supports the sole and shank portions of a shoe 21. The rubber pad 20 r poses obe hereinafter set forth. The supporting member is flexible whereby the rear portion thereof may be bent'upwardly, as illustrated in Figure 2, at a desired angle to support the shank of the shoe as well as the sole thereof.

A last is mounted in the shoe 21 and comprises a sole last plate 23 which carries and has fixedly secured thereto a rearwardly upwardly inclined member 24 terminating in a forwardly directed handle 25. The handle 25 has a recess 26 formed in the upper face thereof for the reception of the lower end of one of the threaded members'l'l by which pressure may be applied to the last and sole.

A plate 27 is hinged at 28 to the rear end of sole last 23, whereby it may be selectively angularly positioned relative to the plane of the sole last 23, and carries a pair of spaced arcuate members or flanges 29 adjacent its, center and projecting upwardly therefrom. Arcuate guideways 30 are formed in the sides of member 24 for the reception of arcuate members 29. A plurality of pairs of-aligned holes 31 are formed in the arcuate members 29, and the arcuate members are adapted to be selectively positioned to permit no registration of any desired pair of said holes with a passage extending transversely through member 24 whereby a pin 32 may be inserted therethrough to position plate 2'? at a desired angle relative to sole last 23.

An electrical heating element 33 is carried by the upper side of sole last 23, and has connection by means of a fitting 34 with a lead wire 35, which may be connected to any source of power.

An auxiliary sole last 36 of any desired size and form is adapted to underlie the sole last 23, and is provided at its upper side with an off-.set pocket 37 into which the front end of last 23 may flt, as illustrated in Figure 6, to operatively position and secure said lasts 23 and 36 together. I

An upper or toe last 38 is carried by the last 23, or by the last 36 when the latter is used, and comprises a sheet of flexible material .bent to shape to conform with the inner shape of the toe portion of the upper of a shoe. An inwardly directed marginal flange 39 is formed in the toe last, and in combination with the sides of the toe last forms means for receiving and retaining a wire spring member 40 normally tending to expand and extend the size and shape of the toe last. The sole last fits into the toe last as illustrated in Figure 4.

The device is used as follows: The toe last 38 is inserted into the toe of the shoe to be repaired, and being normally flexible and also expansible by reason of spring 40, fills out the toe of the shoe. The sole last 23 is then inserted in the shoe within the toe last, and, if the toe last has not fully filled out the toe of the shoe or is not of the shape of the sole last, shapes said toe last as required.

The angular position of plate 27 relative to the sole last 23 is then adjusted and maintained by the pin 32 at the angle which the shank of the shoe normally bears to the sole of the shoe.

The new sole is then cemented to the shoe, and the shoe and last are placed on the flexible supporting member 20 carried by the supporting block 11, the supporting member 20 and flexible plate 19 having been flexed to conform to the curvature of the sole and instep of the shoe. The handwheel 18 is then actuated to bring threaded member 1'7 to bear on handle 25 and seat in recess 26 thereof, whereby pressure is applied to the last and shoe. The pressure so applied to the last causes the flexible supporting member or pad 20 to slightly yield, as accommodated by the air pocket 22 and illustrated in Figure 3, whereby a firm contact between the entire bot-. tom surface of the sole of shoe 21 and the pad 20 is obtained. The heating element 33 is then energized to apply heat to set the sole cement. In the event the shoe being repaired is of a size different than or of a last different than the sole of the shoe is lasted by the plate 27, while the new sole is being cemented to the shoe. In this way the shoe will retain its original shape after being resoled, and will not be misshapen as is commonly the case when a shoe is resoled. Also,

the heating element is efiectively and conveniently positioned whereby it may be easily applied to the sole last 23 in assembling the device and whereby its heat will be directly applied to the sole last 23 and thereby to the sole of the shoe. It will be observed further, that the position of the heating element on the upper side of and spaced inwardly of the outer edges of last 23 prevents direct contact thereof with flexible toe last.38 and insures an air space between said members whereby the detrimental effects of heat on the flexible toe last 38 are minimized. The air-pocketed construction of the rubber supporting pad 20 permits it to have a firm supporting engagement with the entire bottom surface of the sole of the shoe, and the flexibility of the supporting plate 19 permits the supporting member to have a complete supporting engagement with both the sole and shank of the shoe. Other advantages will also be apparent from the foregoing description.

The invention having been set forth, what is claimed as new and useful is:--

1. In combination, a plate shaped to form a sole last, a handle carried by said sole last and having a transverse passage therethrough, a second plate hinged to said sole last to form a shank last, a flange carried by said shank last and positioned adjacent said handle, said flange having a plurality of spaced passages therethrough, and a pin inserted through one of said flange passages and said handle passage to position said shank last relative to said sole" last.

2. In combination, a plate shaped to form a sole last, a handle projecting upwardly from said sole last and having a guideway formed therein, a second plate shaped to form a shank last and hinged to said sole last, a flange carried by said shank last and positioned in said guideway, and means interengaging said flange .and handle to selectively position said shank last relative to said sole last.

3. In combination, a plate shaped to form a sole last, a handle projecting upwardly from said sole last, a second plate hinged to saidsole last and shaped to form a shank last, a flange carried by said shank last and positioned adjacent said handle, and means cooperating with said flange, and handle to selectively position said shank last relative to said sole last.

4. In combination, a plate shaped to form a sole last, a handle projecting upwardly from said sole last, a second plate shaped to form a shank last hinged to said sole last, and means interconnecting said shank last and handle to selectively position said shank last relative to said sole last.

5. In combination, a plate' shaped to form a sole last, a second plate hinged to said sole last to form a shank last, means 'angularly positioning said shank last relative to said sole last, and a flexible sheet bent to form a toe last, said sole last being inserted in and shaping said toe last.

JOE LIEBERMAN.