US1653449A - Apparatus for use in cementing soles or heels to shoes - Google Patents

Description

Dec. 20, 1927.

S. W. BURTCHAELL APPARATUS FOR USE IN CEMENTING SOLES OR HEELS TO SHOES Filed Feb. 21, 1927 ZNVENTOR A ftornqg Petented Dec. 20, 1927.

FF-ICE.

SAMUEL VJ. BURTCI IAELL, OF OAKLAND, CALIFORNIA.

ePrAnATUs-ron USE IN GEMENTIFG so-LEs on HEELS TO SHOES.

Application filed February 2 1.1927. serial no. 169,700.v

In cementing soles or heels to shoes, varlous means have been employed for hold ng the sole or heel in its a'pphed position, to

the shoe bottom until the cement has dried or set to firmly unite the sole or heeliin place.

One method has-been to 'mount the shoe or on a last, cement and position the sole a tight the sole upper or-heel thereon, and then to ensure adhesion wrap elastic material over or heel passing the same beneath the last and in contact with the shoe upper. This method of application is extremely injurious to certain types of uppers often soiling the same, and in most instances, due to the action of the elastic and the period of time the pressure is maintained, injuriously creasing the upper. Anothermethod has been practiced consisting of providing a special casting having a last incorporated therewith for mounting the shoe, the casting being clamped to a special support and having spaced below the last an arm for detachably receiving elastic members passed under tension over the sole or heel to be cemented. Such a. device is expensive, two complete devices being necessary to expedite the work of applying soles or heels to a pair of shoes. and its use is injurious to the shoe upper as the elastic member is drawn over the shoe upper against the sole edge, stretching. wrinkling, and often soiling the same. This is due to the arm being of a width less than that ot the last mounting the shoe.

The present invention relates more particularly to a means for use in cementing soles or heels to shoes, and which is adapted for cooperation with a shoe lost. and is adapted fordetachable association with a last jack. One of the objects of the invention is to provide a means for holding the sole or heel to the shoe bottomand which means is maintained under tension and is held out of contact with the shoe upper. Another objectis to provide a structure adapted when in operation to be associated with the last and mounted on a last jack and to be removed from thejack with the shoe last and cooperate therewith both before and after in maintaining the cemented sole orheel in position until the adhesive has set. Another object is to provide tion with a shoe last designed for mounting on a jack and which will preclude the elastic holding means cooperatingwith the sole or heel from contact with or in any manner injuring the shoe upper further object a structure for associa is to provide a structure, the cost of which is only a trifle morethanthat of the pres 'ent conventional cast shoe last, one. which is simple in its operation, and which,"when in use, is associated with a shoe last ofconventional form and is capable of use with a conventional last jack. An important object is to provide a structure for use in the cementing of soles and heels to shoe bottoms and which may be purchased with but little cost by the shoe repairer, is adapted for use on the conventional last jack, and is capable of ready attachment to and detachment from the jack when desired.

In its broadestconception, the invention consists in associating with a conventional shoe last a member of a width and outline substantially corresponding to the width and outline of the foot portion of the 'last, and which member is adapted for projecting beneath the last to afiord a means on which an elastic structure is anchored, which structure passes over the applied sole' and is held under tension, the last and member to facilitate their use and to render the jack usable for other purposes being adaptable. for detachable association with a last jack.

With the above mentioned and other objects in-view, the invention consists in the novel construction and combination of parts hereinafter described, illustrated in the ac companying drawings, and set forth in the claims hereto appended, it being understood that various changes in the form. proportion, size and minor details of construction w thin the scope of the claims may be'resorted to without departing from the spirit or sacrificing any of the advantages of the invention. a

In the drawings forming a part of the invention:-

Fig. 1 is a view in elevation of my inven-' tion in position on a jack.

Fig. 2 is a similar view with a shoe positioned on the last and elastic means holding the sole to the shoe bottom.

Fig.8 is a view in transverse section on line 3-3 of Fig. 2.

Referring more particularly to the several views of the drawings wherein like characters of reference designate corresponding parts, 1 indicates a jack of the conventional form, on the upper end of which is removably mounted a body portion preferably of cast metal. The body comprises a solid or unitary heel portionprevidsd. With a IBQfiSs ol the sole last for receiving the upper end 4 of the jack 1 when the body is detachably positioned thereon. From the heel portion extends a sole last portion 5 of the conventional size and shape employed in the shoe making or repairing trade, and over which sole last portion 5 and heel portion of the shoe to be repaired is adapted to be positioned in the usual manner. Forconvenience in description, the entire body 2 is hereafter referred to as a shoe 'last.. Projecting forwardly from the heel portion of the; last and lying in spaced relation below the sole last portion 5 is an arm 6. The longitudinal curveof the under surface of the arm 6 corresponds substantially with the longitudinal curye of the upper surface of the sole last portion 5 aud the peripheral edge ofthe arm 6 corresponds substantially to the outline of the edge of the sole lastportion. 5. As illustrat- I the usualmanner with the inner surfaceof theheel resting on the heel portion. with the sole cemented to the bottom'of the shoe, the same is held in position by an elastic member 7 until the uniting medium dries or sets. In applying the elastic member, the same is anchored at one end, and its free end is wrapped under tension over the sole and under the lower face of arm 6 pref erabl-y for the full length of the sole, the end thereafter being anchored in any suitable manner. Maintaining the elastic memher under uniform tension during its application ensures an even distribution of the pressure over the sole for its full length. The portions of the elasticnien'iber .cx'tenct ing between the sole and edge of the arm (5 are disposedv at substantially right angles to the sole edge and do not contact'with the upper as would bot'ho case if the arm was of a widthnarrower than the sole or sole torn'iing last portion 5. It desirable heavy elastic hands may besubstituted for the single member 7, and their use enables their individual application and removal when desired. With the soleheld in position as illustrated and described, the body 2 is removedlrom the jack 1 and is laid to one side permitting new work to be carried on by the workman on the jack and enabling the shoe with its newly applied sole or heel to be laid away in some convenient place until the adhesive means has set or dried.

I claim 1. A sole cementingapparatus comprisinga last provided with a recess for detachably receiving a jack end, of means movable with the last and extending beneath the same in spaced relation thereto, said means being of a general outline and contour ofthe last, and an elastic member cooperating with the means and extending over of the last. 7

2. A sole cementing apparatus comprising a last provided with a recess for detachably receiving a jack end, of means extending outwardly beneath the last in spaced relation thereto, and movablewith the last to and from the jack end. i V V 8. In combination with a last, an arm ex tending from the heel portion thereof forwardly beneath the last in spaced. relation thereto. I i I I 4-. In combination with a last, an arm tegral with thehecl portion thereof and extending forwardly therefrom to lio'in spaced relation beneath the last, the width of the last and arm at corresponding points being substantially equal.

5. In combination with a last provided with a jack end receiving recess, an arm integral withthe lastand extending forwardly from the heel portion beneat.l1the last in spaced relation thereto, the contour of the under-surface of the arm corresponding substantially r01 the contour of the uppersurface of the last- V i 6. In combination with with a" jack end receiving, recess, an "arm integral with theflast and extending forwardly from the heel portion beneath the last in spaced relation thereto, the'con'tour oi the undersurface o'i'i' the'arn'i correspond ing to the contour of the I last, and the width of a last provided the last and arm at upper siu'i'acc'ollthe l the upper surface corresponding points being substantially equal.

In testimony' whereof I have signed my name to this specification.

1 SAHUEL W, RI HAELL.

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