US2121938A

US2121938A - Insole and method of making the same

Info

Publication number: US2121938A
Application number: US113627A
Authority: US
Inventors: Harry E Wagner
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1936-12-01
Filing date: 1936-12-01
Publication date: 1938-06-28
Anticipated expiration: 1955-06-28

Description

June 2a, 193 WAGNER 2,121,938.

INSOLE} AND METHOD OF MAKING THE- SAME Filed Dec. 1, 1956 /4 g 1 F g;

Patented. June 2a, 1938 UNITED- STATES PATENT OFFICE 2,121,938 msom AND METHOD or MAKING 'rnr.

- SAME Y E. Wagner, EndioothN. Y., -assignor to Machinery Harry United Shoe Corporation, Paterson,

N. J.,.a corporation of New alersey. animate December 1, 1936, Serial No. 113,627

- 9 Claims. (01. 12-146) In the practice of my improved method of making insoles as herein illustrated, a suitable piece of material, for'example leather, is cut or roundd into the shape of a last bottom and is provided with either an inside or an outside chan- 15 nel. The marginal portion of the outer face of the insole is coated withcement, preferably cement which is pressure responsive, and the ce- 1 input allowed to dry. A tape, preferably coated on both sides with pressure-responsive cement,

20 has its central portion folded over a core or upon' itself and the marginal portions of the tape fturned outwardly with respect to the folded por tionand caused to adhere to the cement ou the marginal portion of the insole body, the folded 25 portion of the tape being located in a plane sub-- stantially perpendicular to-the insole body and substantially in alinement with thebottom of the channel formed therein, The lip of the :85 struction produced by the practice -of the described method.

These and other features of the inventionwi-ll appear more fully from the following description when read in connection with the accompanying id drawing and will be pointed out in the appended I; 01 I I i L.)

In the drawing,

Fig. 1 is a perspective view of an insole' body" suitably rounded and channeled with an outside 45 channel and cemented on the marginal, portion of its outer face; .7 p

Fig. 2 is an enlarged fragmentary section taken on the line lIII of Fig. 1;

Fig. 3 is a perspective. viewsimilar to Fig. 1 50 showing the insole after'tihefolded tape has been applied thereto; 7 I

Fig. 4 is anenlarged fragmentary section of Fig. 3 taken on-the liniaIV-IV; v

Fig. 5 is a perspective view similar to Fig. 3

55 showing the insole after the outside lip has been turned up..

raised and pressed against the folded portion of the tape a Fig. 6 is an enlarged fragmentarysection taken on the line VI-VI of Fig. 5; V

Fig. 'l is an enlarged fragmentary section of a 5 modified form in which the core has been omitted and the tape folded upon itself;

Fig. 8 is a'view similar to Fig. 7 and showing a usual reinforcement applied to'theinsole; Fig. 9 is an enlarged fragmentary section show- 10 ing a modified form of the invention in'which; the inso1e"body is provided with an inside channel instead of an outside channel; and

V Fig. 10 is similar to Fig. 9 and shows the in- .side channel flap and the inner fla'nge of the tape turned up against the inner face of the folded portion of the tape. In' making my improved insole by the illus- I trated'novel method, apiece of material such as leather, which may be considerably thinner than that usually employed for, lipped insoles, for example three irons in thickness, is rounded in a ,usual manner to form an insole I 0 fitting -the bottom of the last. The insole l0 may then be provided in the usual manner with an outside channel l2 extending inwardly from the edge face of the insole sufficiently to provide the usual width of feather when the channel flap is The channeling may be done quite close to the outer face of the insole, a channel flap having-the-thickness of as little as one iron having been found satisfactory under some conditions. Either before orv after the channeling operation the marginal portion of the outer face of the insole may be provided with a'coating i6 of cement, a pressure responsive cementsuch as latex or polymerized chloroprene being preferred. A strip or tape i 8 of suitable textile material is coated with the same cement on ,both sides and allowed to dry. The tape l8 may then, as shown 40 in Fig- 3, have its central portion folded over a core 20 forming a crease at the top edge off-the core and the

marginal portions

22, 24 turned outwardly relatively I to the central folded portion and pressed againstthe cemented area lG-of the insole iii, the folded portion of the strip l8 being alined substantially with the bottom of the channo! 12. The cemented surfaces of the

outturned portions

22, 24 readily adhere to. the cemented surface i6 upon application of pressureand are to permanently attached to the body portion.

The lip I4 is next turned up against the upstanding lip formed by the folded portion of the tape by a usual lip-turning machine and in this operation the marginal portion 22. which preferably does not extend to the edge of the insole, is also turned up against the folded portion, the crease of the fold being at the base of the lip i6. Thus, as shown in Fig. 6, the insole I0 is providedwith a rib consisting of a layer of material H like that of the insole body, for example leather, and three layers of fabric at the portion of the rib next to the insole and two layers of fabric near the top of the rib'of the insole. In this way astrong rib firmly attached to the insole is provided, part of the rib being integral with the body portion of the insole. Also, 'at the base of the rib where the inseam stitches are inserted a greater thickness of material is provided than in the outer portions of the rib which do not need it, these portions being subsequently trimmed oif. An insole prepared in the manner described may, if desired, be further strengthened by applying thereto the usual reinforcement of Gem duck or similar material. If desired, the core 20- may be omitted and the strip l8 folded upon itself, as shown in Fig. '7. The use of a core, however, stiffens the rib and assists in forming an even and satisfactory fold in the tape. The core may be made of a stripof stifi paper folded into suitable shape. This form of insole maybe reinforced with Gem duck or similar material, as

' shown at 26 in Fig. 8.

'The insole thus made has on its feather, thatis on the marginal portion of the insole over which the upper is lasted, and on its shoulder, that is on the outer face of the lip against which the upper is forced by the upper-wiping operations, split leather surfaces which are desirable and facilitate the operation of lasting the upper.

Under some conditions it may be found advantageous' to provide a split leather surface on the inner face of the rib to facilitate the movement of the shoe with respect to a channel guide or anvil such as are characteristic 'of sewing and lasting machines. In'this case, as shown in Fig. 9, the insole may be provided with an inside lip '30. The other steps of the method may then be carried out substantially as above indicated, the

final operation being the folding of the inside lip up against the inner face of the folded portion of the strip l8, as shown in Fig. 10. In this case it will be seen that the feather of the insole is formed, at least partly, by the outturned portion 22 of the tape and that the inner portion 26 of the tape is turned up against the folded portion with the inside lip 30.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is: p

1. That improvement in methods of makin insoles which consists'in channeling an insoleshaped body portion, folding the middle portion of a tape, turning the marginal portions of the tape outwardly withrespect to the folded portion to dispose them in a plane perpendicular to the folded portion, cementing the marginal portions of the'tape to the insole body with the folded portion substantially in alinement with the bottom of the channel, and turning the channel flap and one of the marginal portions of the tapeup against the folded portion.

2. An insole comprising a body portion having a channel lip disposed perpendicular to the body portion, said lip being reinforced on one face with three thicknessesof textile material formed by twice folding upon itself a single strip,

the crease of one foldbeing located on top of.

the lip and the crease of the other told. at the folding the central portion of a tape over a core,

disposing the marginal portions of the tape outwardly with respect to the core, cement-attaching the marginal portions of the tape to the insole body with the core substantially in alinement with the bottom of the channel, and then turning the channel flap and the outer margin of the tape up against the outer face of the folded portion.

4. That improvement in methods of making insoles which consists in forming an outside channel in an insole-shaped body portion, folding the middle portion of a tape, disposing the marginal portions of the tape in opposite directions in a plane perpendicular to the folded portion, ce-

mentingthe marginal portions of the tape to.

the body portion, said lip being reinforced on its inner face with three thicknesses of textile material formed by twice folding a single strip, the crease of one fold being located on top of the lip and the crease of the other folded at the bottom of the lip, the inner portion of the strip being secured flatwise to the body of the insole.

6. That improvement in methods of making insoles which consists in channeling an insoleshaped body portion a predetermined distance inwardly from its edge face and parallel to and adjacent to its outer face, applying pressure-respon'sive cement to the marginal portion of the outer face of the insole, providing a tape coated with similar cement on both sides, folding the central portion of the tape overia core, pressing oppositely directed marginal portions of the tape against the cemented area of the margin of the insole with the core perpendicular to the insole and with one edge thereof substantially alined with the bottom of the channel, then turning up the channel flap and the outer margin of the tape against the cement-coated outer surface of the folded portion and thereby causing the marginal portion and the channel flap to be adhesively secured to the outer side of the folded portion.

'1. That improvement in methods of making insoles which consists in forming in the edge face of an insole-shaped body portion an inside chan nel parallel to the surface of the insole, folding the central portion of a tape over a core, dis: posing the marginal portions of the tape in opposite directions, cement-attaching the marginal portions of the tape to the insole body with one edge of the core substantially in alinement with the bottom of the channel, and then turning the channel flap and the inner marginal portion of aromas 4 the-marginal portions of the tape, pressing the the lip and the crease of the other fold at the bottom of the lip, the outer portion of the strip being secured iiatwise to the body of' the insole. 9. That improvement in methods of making insoles which consists informing an inside channelin a" insole-shaped body portion a predetermined distance inwardly from its edge face andsubstantiaily parallel to and adjacent to its outer face, applying pressure-responsive cement to the marginal portion of the outer face of the insole including thechannel flap, providing a tape coated with similar cement on both sides, folding the central portion of the tape, oppositely disposing the folded portion.

BARBIE. WAGNER; v