US2075940A - Manufacture of shoe bottom units - Google Patents
Manufacture of shoe bottom units Download PDFInfo
- Publication number
- US2075940A US2075940A US84492A US8449236A US2075940A US 2075940 A US2075940 A US 2075940A US 84492 A US84492 A US 84492A US 8449236 A US8449236 A US 8449236A US 2075940 A US2075940 A US 2075940A
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- Prior art keywords
- insole
- reinforcing piece
- shank
- tapes
- unit
- Prior art date
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
- A43B13/41—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process combined with heel stiffener, toe stiffener, or shank stiffener
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
- A43B13/39—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process with upset sewing ribs
Definitions
- This invention relates to improved methods of making shoe bottom units and to improvements in shoe bottom units as articles of manufacture.
- the invention is herein illustrated with reference to the manufacture of reinforced insole units of the type comprising an insole, a heel and shank reinforcing piece which is secured to the lower or lasting side of the insole, and a metallic shank stiffener which is interposed between the insole and the reinforcing piece.
- One object of the invention is to provide a reinforced shoe bottom or insole unit of the abovementioned type which is adapted for use in. the manufacture of shoes the uppers of which are cement lasted in accordance with a method such, for example, as that disclosed and claimed in United States Letters Patent No. 1,932,545, granted October 1, 1933, upon application of George Goddu. It should be understood, however, that the utility of my invention is not limited to the manufacture of shoes of that type.
- the invention provides an improved method of making reinforced insole units which consists in securing one end portion of a narrow strip of material to a shank reinforcing piece in position to enable that portion to serve asa lip to which a shoe upper may be secured and to leave the remaining portion of the strip extending forwardly beyond the front end of the reinforcing piece, securing the reinforcing piece to the shank portion of an insole thereby providing a reinforced insole unit having a lipped shank portion, and thereafter securing the forwardly extending portion of the strip to the forepart of the insole in position to serve as a lip to which the upper may be secured in the forepart of the unit.
- two tapes of the proper lengths to extend along the marginal portions of the shank and forepart of an insole unit are aranged with their rear portions overlying the shank portion of a fiat heel and shank reinforcing piece and the rear portions of the tapes are stitched to the reinforcing piece in positions to serve as lasting lips, the front portions of the unattached to the reinforcing piece and extending forwardly beyond its front end.
- the reinforcing piece is then secured by means of adhesive to the heel and shank portion of an insole'with a longitudinally curved shank stiffener interposed between those parts and the shank portions of the insole and the reinforcing piece are molded to shape them to correspond to the shape of the bottom of a last.
- the unattached forward portions of the tapes are stitched to the forepart of the insole in positions forcing piece having secured thereto the rear portions of two strips or tapes which are to consti-i tute lasting lips;
- Fig. 2 is a cross-sectional view, on an enlarged scale, taken along the line IIII of Fig. 1;
- Fig. 3 is a perspective view of my improved reinforced insole unit as it appears after the heel and shank reinforcing piece has been secured to the insole but before the forward portions of the strips which are to been secured to the. forepart of the insole;
- Fig. 4 is a view similar to Fig. 3 but showing the completed insole unit
- Fig. 5 is a cross-sectional view on an enlarged scale taken along the line V-V of Fig. 4;
- Fig. 6 is a view like Fig. 2 but showing a modified arrangement of the tapes.
- my improved reinforced insole unit comprises a full-length insole ll] of relatively flexible material, such as leather, a heel and shank reinforcing.
- piece l2 of relatively stiff material such as leatherboard or fiberboard which is secured to the lower or lasting side of the insole, a narrow metallic shank stiffener M which is interposed between the heel and shank piece l2 and the insole l0, and two strips or tapes l6, l6 which are stitched to the lower side of the insole unit in positions to constitute lastinglips.
- the heel and shank reinforcing piece I2 is cut to correspond in outline to that of the heel and shank portion of the insole and is preferably secured to the insole by means of cement after the shank stiffener I 4 has been laid in proper position upon the insole.
- the insole, the reinforcing piece and the shank stiffener may be assembled and relatively located and the several parts preliminarily secured together by the use of an assembling machine such as that disclosed and claimed in copending application-for United States Letters Patent, Serial No. 753,367, filed November 16, 1934, in the name of J. M. Whelton.
- the shank portions of the reinforcing piece and the insole are molded both longitudinally and transverselyto the reinforcing explained with reference constitute the lasting lips have v correspond to the longitudinal and transverse curvatures of the bottom of a last and the molding pressure is utilized to complete the adhesive attachment of the reinforcing piece to the insole.
- this molding and attaching operation may be performed by the use of a molding machine such as that disclosed and claimed in United States Letters Patent No. 2,065,465, granted December 22, 1936, upon application of J. M. Whelton.
- two tapes l6 are cut to the proper lengths to enable them to extend the desired distances along the shank and forepart of an insole unit and the tapes are arranged, one at a time, with their rear extremities located relatively to the reinforcing piece, as shown in Fig. 1.
- the tapes are then secured by means of stitches H! to the reinforcing piece, the stitching being accomplished by the use of any suitable straight needle sewing machine, preferably, though not necessarily, provided with suitable gaging means for spacing the stitching and the tapes in the desired spaced 5o relation to the edge of the insole. As shown, the forward portions of the tapes are left unattached to the reinforcing piece and.
- the lower side of the reinforcing piece and one side of the heel and shank portion of the insole are then coated with cement, for example latex, and after the latex has become sufficiently tacky the shank stiffener I4 is properly positioned upon the coated side of the insole and the reinforcing piece 0 is laid, coated face down, upon the insole over the shank stiffener and the parts are pressed together with sufiicient pressure and over a sufficient area to hold them firmly in place. Thereafter, the heel and shank portion of the unit is 35 molded, as already described. As illustrated in Figs.
- the tapes lie substantially flat against the surface of the reinforcing piece, even in the narrowest portion of the unit, so that they have .no tendency to be crumpled or undesirably dis- 70 torted by the molding operation.
- the tapes may be stitched even closer together in the narrow shank portion of the reinforcing piece, in which case the portion of the tapes at the inner sides of the lines of stitching may be 75 caused to assume upstanding positions, as indicated in Fig. 6.
- the upstanding portions of the tapes will be deflected to one side or the other and temporarily flattened out more or less by the molding pressure without, however, rendering them any less capable of performing the functions of lasting lips.
- the portions of the tapes which extend forwardly beyond the reinforcing piece are secured, one at a time, to the forepart of the insole by means of stitches 20, the stitching operation upon each tape starting at the front edge of the reinforcing piece where the lines of stitching l8 terminate and proceeding forwardly to the front ends of the tapes.
- the stitching operation may be performed by a su'table sewing machine equipped with gaging devices for locating the stitching and the tapes at the desired distances from the edge of the insole.
- the tapes may be stitched closer together along the narrow shank portion of an insole unit than would be possible if the shank stiffener were assembled with the other parts of the unit at the time of the stitching since, in the latter case, the presence of the shank stiffener might interfere with or prevent the performance of the stitching operation.
- That improvement in methods of making re-' inforced insole units which consists in securing one end portion of a narrow strip of material to a shank reinforcing piece in position to enable said portion to serve as a lip to which a shoe upper may be secured and to leave the remaining por-, tion of the strip extending forwardly beyond the front end of said reinforcing piece, securing said reinforcing piece to the shank portion of an insole thereby providing a reinforced insole unit having a lipped shank portion, and thereafter securing said forwardly extending portion of said strip to the forepart of the insole in position to serve as a lip to which the upper may be secured in the forepart of the unit.
- a reinforced insole unit comprising an insole, a reinforcing piece secured to the lower side of the shank portion of the insole, and a lip extending along the lower side of said insole forepart and said shank reinforcing piece to which a shoe upper may be secured, said lip being directly secured to said shank reinforcing piece by fastenings which do not enter the insole.
- a reinforced insole unit comprising an insole, a heel and shank reinforcing piece secured to the lower side of the insole, and a lasting lip comprising a tape secured to the insole in the forepart of the unit .and secured to the re inforcing piece by fastenings which extend only through the tape and through the reinforcing piece in the shank portion of the unit.
- a reinforced insole unit comprising an insole, a heel and shank reinforcing piece cemented to the lower side of the insole, and a lip for receiving the lasting allowance of a shoe upper and secured to the lower side of the unit by stitches extending through the lip and the insole in the forepart of the unit and only through the lip and the reinforcing piece in the shank portion of the unit.
- a reinforced insole unit comprising an insole, a heel and shank reinforcing piece secured to the lower side of the insole, and a tape stitched to the lower side of said unit, the stitches extending through the tape and the insole in the forepart of the unit and only through the tape and the reinforcing piece in the shank portion of the unit, thereby providing a lip to which a shoe upper may be secured.
- That step product in the manufacture of reinforced insole units which comprises a shank reinforcing piece having a tape stitched thereto to serve .as a lasting lip in the shank portion of an insolefwith which said shank piece is to be assembled to provide a reinforced insole unit, said tape extending a substantial distance forwardly beyond the front end of said shank piece for subsequent attachment to the'insole to serve as a lasting lip in the forepart of the unit.
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- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Description
MANUFACTURE OF SHOE BOTTOM UNITS Filed June 10, 1956 v e :Mm I a vlllllllml lmlr v I 2 tapes being left Patented Apr. 6, 1937 UNITED STATES PATENT OFFIC signor to United Shoe Machinery Corporation,
Paterson, N. J., a corporation of New Jersey Application June 10, 1936, Serial No. 84,492
11 Claims.
This invention relates to improved methods of making shoe bottom units and to improvements in shoe bottom units as articles of manufacture. The invention is herein illustrated with reference to the manufacture of reinforced insole units of the type comprising an insole, a heel and shank reinforcing piece which is secured to the lower or lasting side of the insole, and a metallic shank stiffener which is interposed between the insole and the reinforcing piece.
One object of the invention is to provide a reinforced shoe bottom or insole unit of the abovementioned type which is adapted for use in. the manufacture of shoes the uppers of which are cement lasted in accordance with a method such, for example, as that disclosed and claimed in United States Letters Patent No. 1,932,545, granted October 1, 1933, upon application of George Goddu. It should be understood, however, that the utility of my invention is not limited to the manufacture of shoes of that type.
With this object in view the invention provides an improved method of making reinforced insole units which consists in securing one end portion of a narrow strip of material to a shank reinforcing piece in position to enable that portion to serve asa lip to which a shoe upper may be secured and to leave the remaining portion of the strip extending forwardly beyond the front end of the reinforcing piece, securing the reinforcing piece to the shank portion of an insole thereby providing a reinforced insole unit having a lipped shank portion, and thereafter securing the forwardly extending portion of the strip to the forepart of the insole in position to serve as a lip to which the upper may be secured in the forepart of the unit. As herein exemplified, two tapes of the proper lengths to extend along the marginal portions of the shank and forepart of an insole unit are aranged with their rear portions overlying the shank portion of a fiat heel and shank reinforcing piece and the rear portions of the tapes are stitched to the reinforcing piece in positions to serve as lasting lips, the front portions of the unattached to the reinforcing piece and extending forwardly beyond its front end. The reinforcing piece is then secured by means of adhesive to the heel and shank portion of an insole'with a longitudinally curved shank stiffener interposed between those parts and the shank portions of the insole and the reinforcing piece are molded to shape them to correspond to the shape of the bottom of a last. Finally, the unattached forward portions of the tapes are stitched to the forepart of the insole in positions forcing piece having secured thereto the rear portions of two strips or tapes which are to consti-i tute lasting lips;
Fig. 2 is a cross-sectional view, on an enlarged scale, taken along the line IIII of Fig. 1;
Fig. 3 is a perspective view of my improved reinforced insole unit as it appears after the heel and shank reinforcing piece has been secured to the insole but before the forward portions of the strips which are to been secured to the. forepart of the insole;
Fig. 4 is a view similar to Fig. 3 but showing the completed insole unit;
Fig. 5 is a cross-sectional view on an enlarged scale taken along the line V-V of Fig. 4; and
Fig. 6 is a view like Fig. 2 but showing a modified arrangement of the tapes.
I As shown in the drawing, my improved reinforced insole unit comprises a full-length insole ll] of relatively flexible material, such as leather, a heel and shank reinforcing. piece l2 of relatively stiff material, such as leatherboard or fiberboard which is secured to the lower or lasting side of the insole, a narrow metallic shank stiffener M which is interposed between the heel and shank piece l2 and the insole l0, and two strips or tapes l6, l6 which are stitched to the lower side of the insole unit in positions to constitute lastinglips. The heel and shank reinforcing piece I2 is cut to correspond in outline to that of the heel and shank portion of the insole and is preferably secured to the insole by means of cement after the shank stiffener I 4 has been laid in proper position upon the insole. Advantageously, the insole, the reinforcing piece and the shank stiffener may be assembled and relatively located and the several parts preliminarily secured together by the use of an assembling machine such as that disclosed and claimed in copending application-for United States Letters Patent, Serial No. 753,367, filed November 16, 1934, in the name of J. M. Whelton. As illustrated, also, the shank portions of the reinforcing piece and the insole are molded both longitudinally and transverselyto the reinforcing explained with reference constitute the lasting lips have v correspond to the longitudinal and transverse curvatures of the bottom of a last and the molding pressure is utilized to complete the adhesive attachment of the reinforcing piece to the insole. 5 Conveniently this molding and attaching operation may be performed by the use of a molding machine such as that disclosed and claimed in United States Letters Patent No. 2,065,465, granted December 22, 1936, upon application of J. M. Whelton.
In some cases it is practicable to stitch the tapes Hi to the insole unit after the several parts of the unit have been assembled and secured together but in many cases it is impracticable 5 to do so. In the case of an insole unit having a narrow shank portion, such as the unit shown in the drawing; for example, it is necessary that the lines of stitching be located quite close together in the narrow shank portion of the unit so that the tapes will be suitably spaced from the edge of the unit to constitute lasting lips. However, the space between the lines of stitching is frequently less than the width of the shank stiffener and in such cases, of course, the shank stiffener would interfere with the stitching operation.
In accordance with the present invention it is proposed to stitch the rear portions of the tapes to the reinforcing piece before the reinforcing piece has been assembled with an insole and a shank stiffener and to leave the forward portions of the tapes extending forwardly beyond the reinforcing piece so that they may later be stitched to the insole with which the reinforcing piece is to be assembled.
In carrying out my improved method of making insole units, as herein exemplified, two tapes l6 are cut to the proper lengths to enable them to extend the desired distances along the shank and forepart of an insole unit and the tapes are arranged, one at a time, with their rear extremities located relatively to the reinforcing piece, as shown in Fig. 1. The tapes are then secured by means of stitches H! to the reinforcing piece, the stitching being accomplished by the use of any suitable straight needle sewing machine, preferably, though not necessarily, provided with suitable gaging means for spacing the stitching and the tapes in the desired spaced 5o relation to the edge of the insole. As shown, the forward portions of the tapes are left unattached to the reinforcing piece and. extend forwardly beyond the front edge of the latter. The lower side of the reinforcing piece and one side of the heel and shank portion of the insole are then coated with cement, for example latex, and after the latex has become sufficiently tacky the shank stiffener I4 is properly positioned upon the coated side of the insole and the reinforcing piece 0 is laid, coated face down, upon the insole over the shank stiffener and the parts are pressed together with sufiicient pressure and over a sufficient area to hold them firmly in place. Thereafter, the heel and shank portion of the unit is 35 molded, as already described. As illustrated in Figs. 1 to 5, the tapes lie substantially flat against the surface of the reinforcing piece, even in the narrowest portion of the unit, so that they have .no tendency to be crumpled or undesirably dis- 70 torted by the molding operation. If desired, the tapes may be stitched even closer together in the narrow shank portion of the reinforcing piece, in which case the portion of the tapes at the inner sides of the lines of stitching may be 75 caused to assume upstanding positions, as indicated in Fig. 6. In such a case, when the insole unit is being molded, the upstanding portions of the tapes will be deflected to one side or the other and temporarily flattened out more or less by the molding pressure without, however, rendering them any less capable of performing the functions of lasting lips.
After the insole unit has been molded the portions of the tapes which extend forwardly beyond the reinforcing piece are secured, one at a time, to the forepart of the insole by means of stitches 20, the stitching operation upon each tape starting at the front edge of the reinforcing piece where the lines of stitching l8 terminate and proceeding forwardly to the front ends of the tapes. As in the case of stitching the tapes to the reinforcing piece, the stitching operation may be performed by a su'table sewing machine equipped with gaging devices for locating the stitching and the tapes at the desired distances from the edge of the insole.
By stitching the rear portions of the tapes to the reinforcing piece before the latter is assembled with the insole and later stitching the forward portions of the tapes to the insole, as above described, it is much easier to perform the stitching operation since both the reinforcing piece and the forepart of the insole are flat while the tapes are being stitched thereto and in no case do any of the stitches extend through more than a single layer of shoe bottom material. Moreover, as best shown in Fig. 5, the tapes may be stitched closer together along the narrow shank portion of an insole unit than would be possible if the shank stiffener were assembled with the other parts of the unit at the time of the stitching since, in the latter case, the presence of the shank stiffener might interfere with or prevent the performance of the stitching operation.
Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is: I
1. That improvement in methods of making re-' inforced insole units which consists in securing one end portion of a narrow strip of material to a shank reinforcing piece in position to enable said portion to serve as a lip to which a shoe upper may be secured and to leave the remaining por-, tion of the strip extending forwardly beyond the front end of said reinforcing piece, securing said reinforcing piece to the shank portion of an insole thereby providing a reinforced insole unit having a lipped shank portion, and thereafter securing said forwardly extending portion of said strip to the forepart of the insole in position to serve as a lip to which the upper may be secured in the forepart of the unit.
2. That improvement in methods of making reinforced insole units which consists in securing one end portion of a narrow strip of material to a shank reinforcing piece in position to enable said portion to serve as a lip to which a shoe upper may be secured and to leave the remaining portion of the strip extending forwardly beyond the front end of said reinforcing piece, securing said reinforcing piece to the shank portion of an insole by means of adhesive and molding said piece and the shank portion of the-insole to shape said parts to correspond to the shape of the bottom of a last thereby providing a reinforced insole unit having a molded and lipped shank portion, and thereafter securing said ;for-. w-ardly extending portion of said strip to the forepart of the insole in position to serve as a. h
lip to which the upper may be secured in tho forepart of the unit;
3. That improvement in methods of making reinforced insole units which consists in securing one end portion of a narrow strip of material to a shank reinforcing piece in position to enable said portion to serve as a lip to which a shoe upper may be secured and to leave the remaining portion of the strip extending forwardly beyond the front end of said reinforcing piece, relatively positioning an insole, a shank stiffener and said reinforcing piece with the shank stiffener interposed between the reinforcing piece and the insole, securing said parts together in said relative positions by means of adhesive and molding said reinforcing piece and the shank portion of the insole to correspond to the shape of the bottom of a last thereby providing a reinforced insole unit having a molded and lipped shank portion, and thereafter securing said forwardly extending portion of said strip to the insole in position to serve as a lip to which the upper may be secured in the forepart of the unit.
4. That improvement in methods of making reinforced insole units which consists in securing to one side of a heel and shank reinforcing piece the rear portions of two tapes in positions to serve as lasting lips and leaving the other portions of said tapes extending forwardly beyond said reinforcing piece, securing said reinforcing piece to the lower side of the shank portion of an insole, and thereafter securing said forwardly extending portions of said tapes to the forepart of the insole in positions to serve as lasting lips.
5. That improvement in methods of making reinforced insole units which consists in securing to one side of a heel and shank reinforcing piece the rear portions of two tapes in positions to serve as lasting lips and leaving the other portions of said tapes extending forwardly beyond said reinforcing piece, securing said reinforcing piece to the lower side of the shank portion of an insole, and thereafter locating the forwardly extending portions of said tapes in positions to serve as lasting lips in the forepart of the unit and securing said portions to the insole by stitching forwardly from the front end of said reinforcing piece along the unattached portions of said tapes.
6. That improvement in methods of making reinforced insole units which consists in stitching the rear portions of two tapes to a flat heel and shank reinforcing piece in positions to serve as lips to which a shoe upper may be secured and leaving the other portions of said tapes extending forwardly beyond said reinforcing piece, se-
curing said reinforcing piece to an insole with a. shank stiffener interposed between said parts and molding the shank portions of the reinforcing piece and the insole to shape said portions to correspond to the curvature of the bottom of a last, and thereafter stitching the forwardly extending portions of said tapes to the forepart of the insole in positions to serve as lips to which an upper may be secured in the forepart of the unit.
7. A reinforced insole unit comprising an insole, a reinforcing piece secured to the lower side of the shank portion of the insole, and a lip extending along the lower side of said insole forepart and said shank reinforcing piece to which a shoe upper may be secured, said lip being directly secured to said shank reinforcing piece by fastenings which do not enter the insole.
8. A reinforced insole unit comprising an insole, a heel and shank reinforcing piece secured to the lower side of the insole, and a lasting lip comprising a tape secured to the insole in the forepart of the unit .and secured to the re inforcing piece by fastenings which extend only through the tape and through the reinforcing piece in the shank portion of the unit.
9. A reinforced insole unit comprising an insole, a heel and shank reinforcing piece cemented to the lower side of the insole, and a lip for receiving the lasting allowance of a shoe upper and secured to the lower side of the unit by stitches extending through the lip and the insole in the forepart of the unit and only through the lip and the reinforcing piece in the shank portion of the unit.
10. A reinforced insole unit comprising an insole, a heel and shank reinforcing piece secured to the lower side of the insole, and a tape stitched to the lower side of said unit, the stitches extending through the tape and the insole in the forepart of the unit and only through the tape and the reinforcing piece in the shank portion of the unit, thereby providing a lip to which a shoe upper may be secured.
11. That step product in the manufacture of reinforced insole units which comprises a shank reinforcing piece having a tape stitched thereto to serve .as a lasting lip in the shank portion of an insolefwith which said shank piece is to be assembled to provide a reinforced insole unit, said tape extending a substantial distance forwardly beyond the front end of said shank piece for subsequent attachment to the'insole to serve as a lasting lip in the forepart of the unit.
RAYMOND E. HOPKINS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84492A US2075940A (en) | 1936-06-10 | 1936-06-10 | Manufacture of shoe bottom units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84492A US2075940A (en) | 1936-06-10 | 1936-06-10 | Manufacture of shoe bottom units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2075940A true US2075940A (en) | 1937-04-06 |
Family
ID=22185295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US84492A Expired - Lifetime US2075940A (en) | 1936-06-10 | 1936-06-10 | Manufacture of shoe bottom units |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2075940A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2625751A (en) * | 1950-03-18 | 1953-01-20 | Field And Flint Co | Insole having cookie for shoes |
| US2651855A (en) * | 1950-10-04 | 1953-09-15 | Milford Shoe Co | Insole having separate attached sewing ribs |
| US2703460A (en) * | 1951-05-07 | 1955-03-08 | Musebeck Shoe Company | Ribbed innersole having a wedge piece in the heel region |
| US20180255868A1 (en) * | 2015-09-16 | 2018-09-13 | Paradox Carbon Flex Footwear Holdings Pty Ltd | Item of footwear |
-
1936
- 1936-06-10 US US84492A patent/US2075940A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2625751A (en) * | 1950-03-18 | 1953-01-20 | Field And Flint Co | Insole having cookie for shoes |
| US2651855A (en) * | 1950-10-04 | 1953-09-15 | Milford Shoe Co | Insole having separate attached sewing ribs |
| US2703460A (en) * | 1951-05-07 | 1955-03-08 | Musebeck Shoe Company | Ribbed innersole having a wedge piece in the heel region |
| US20180255868A1 (en) * | 2015-09-16 | 2018-09-13 | Paradox Carbon Flex Footwear Holdings Pty Ltd | Item of footwear |
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