US2648616A - Material for shoe stiffeners - Google Patents

Material for shoe stiffeners Download PDF

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Publication number
US2648616A
US2648616A US191333A US19133350A US2648616A US 2648616 A US2648616 A US 2648616A US 191333 A US191333 A US 191333A US 19133350 A US19133350 A US 19133350A US 2648616 A US2648616 A US 2648616A
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US
United States
Prior art keywords
shoe
sheet
limp
unfelted
stiffeners
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US191333A
Inventor
Earl H G Gauthier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bixby Box Toe Co Inc
Original Assignee
Bixby Box Toe Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bixby Box Toe Co Inc filed Critical Bixby Box Toe Co Inc
Priority to US191333A priority Critical patent/US2648616A/en
Application granted granted Critical
Publication of US2648616A publication Critical patent/US2648616A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/08—Heel stiffeners; Toe stiffeners
    • A43B23/081—Toe stiffeners
    • A43B23/086—Toe stiffeners made of impregnated fabrics, plastics or the like
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/58—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31801—Of wax or waxy material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31815—Of bituminous or tarry residue
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31844—Of natural gum, rosin, natural oil or lac
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2361—Coating or impregnation improves stiffness of the fabric other than specified as a size
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2762—Coated or impregnated natural fiber fabric [e.g., cotton, wool, silk, linen, etc.]

Definitions

  • the present invention relates to shoe stifleners for boots and shoes, such as box toes, counters and the like, and to sheet material from which such articles may be made.
  • box toes and counters of the type which are rigid at ordinary room temperatures and. considerably above, and are limp and soft at relatively high temperatures and remain so long enough to permit lasting, have been made from a great variety of materials.
  • box toes are not altogether satisfactory for a variety of reasons, for instance, they may have too low a softening point so that a shoe placed under a radiator may become deformed or they may stain the upper or lining or difficulty may be experienced in lasting either because the box toes or counters are not limp and flexible enough or because they become rigid too rapidly or are not sufficiently rigid when cold. Also cost is an important factor.
  • the present invention is based on the discovery that certain types of sheet material made from unwoven and unfelted cotton, rayon or other textile fibers, exclusive of wool, can be used if the fibers are held together by polyvinyl alcohol and the sheet so produced is subsequently saturated with hot-melt stiffening solutions of certain types.
  • the material embodying the present invention has been found to have the requisite qualities for a shoe stiffener and to be the equal, if not the superior, of the materials now on the market.
  • Shoe stiffeners made from this material can be made at prices which are at least competitive with those made from materials now on the market.
  • This material is then saturated with one of a variety of compounds whose composition is dependent on the use to which the impregnated material is to be put, for instance, for black shoe stifieners:
  • the material'for shoe stiffeners which comprises a sheet of unfelted and unwoven textile fibers bound together by polyvinyl alcohol and containing a composition of which a major proportion is a resinous material selected from the group consisting of oxidized asphalt, oxidized rosin and plasticized styrene, said material being stiff but somewhat flexible at temperatures below 120 and limp at 180 F.
  • the black material for shoe stifieners which comprises a sheet of unfelted and unwoven textile fibers held together by polyvinyl alcohol and saturated with a thermoplastic composition consisting of oxidized asphalt; 30% limed rosin and 10% montan wax and which is stifl but somewhat flexible at temperatures below and limp at F.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

Patented Aug. 11, 1953 UNITED STATES ATENT OFFICE MATERIAL FOR SHOE STIFFENERS No Drawing. Application October 20, 1950, Serial No. 191,333
2 Claims.
The present invention relates to shoe stifleners for boots and shoes, such as box toes, counters and the like, and to sheet material from which such articles may be made. Heretofore box toes and counters of the type which are rigid at ordinary room temperatures and. considerably above, and are limp and soft at relatively high temperatures and remain so long enough to permit lasting, have been made from a great variety of materials. However, such materials for box toes are not altogether satisfactory for a variety of reasons, for instance, they may have too low a softening point so that a shoe placed under a radiator may become deformed or they may stain the upper or lining or difficulty may be experienced in lasting either because the box toes or counters are not limp and flexible enough or because they become rigid too rapidly or are not sufficiently rigid when cold. Also cost is an important factor.
The present invention is based on the discovery that certain types of sheet material made from unwoven and unfelted cotton, rayon or other textile fibers, exclusive of wool, can be used if the fibers are held together by polyvinyl alcohol and the sheet so produced is subsequently saturated with hot-melt stiffening solutions of certain types. The material embodying the present invention has been found to have the requisite qualities for a shoe stiffener and to be the equal, if not the superior, of the materials now on the market. Shoe stiffeners made from this material can be made at prices which are at least competitive with those made from materials now on the market.
In practice a sheet of unfelted and unwoven textile fibers, such as cotton, rayon or the like, and with the fibers bound together with polyvinyl alcohol but not woven or felted is used as a base for my material.
This material is then saturated with one of a variety of compounds whose composition is dependent on the use to which the impregnated material is to be put, for instance, for black shoe stifieners:
60% oxidized asphalt 30% limed rosin montan wax For brown shoe stifieners: 45% Vinsol resin (oxidized rosin made by Hercules Powder Comp ny) 30% limed rosin 10% montan wax or equivalent parafiin wax (about 150 F. M. P.)
For white shoe stifieners:
50% plasticized styrene 35% polystyrene 15% 153 degree F. M. P. parafiin wax The sheets of stock are saturated by the ordinary methods now employed in the manufacture of similar goods and. on cooling and hardening are found to be flexible but become limp when heated to about 180 F. and retain their limp characteristics sufiiciently long to permit lasting after being heated. On cooling, the stifieners become hard and rigid but have a certain springiness. Such stiffeners do not soften unless heated to about 120 for a considerable length of time.
I find that the polyvinyl alcohol binder in the unwoven and unfelted sheet, when combined with the impregnating compound,.has the effect of giving additional hardness and stability to the" final product, which is not attained if the sheet is merely impregnated with an impregnating compound, but not bound by polyvinyl alcohol. This effect makes it possible to make a thinner and lighter gauge box toe which will have the same strength, stiffness and hardness as heavier guage and more costly material.
I claim:
1. The material'for shoe stiffeners which comprises a sheet of unfelted and unwoven textile fibers bound together by polyvinyl alcohol and containing a composition of which a major proportion is a resinous material selected from the group consisting of oxidized asphalt, oxidized rosin and plasticized styrene, said material being stiff but somewhat flexible at temperatures below 120 and limp at 180 F.
2. The black material for shoe stifieners which comprises a sheet of unfelted and unwoven textile fibers held together by polyvinyl alcohol and saturated with a thermoplastic composition consisting of oxidized asphalt; 30% limed rosin and 10% montan wax and which is stifl but somewhat flexible at temperatures below and limp at F.
EARL H. G. GAUTHIER.
References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,063,649 Woodruff Dec. 8, 1936 2,330,314 Schwartz Sept. 28, 1943 2,346,947 Schlaanstine Apr. 18, 1944 2,390,347 Beckwith et al Dec. 4, 1945 2,444,931 Heaton et a1 July 13, 1948 2,528,793 Secrist Nov. 7, 1950

Claims (1)

1.THE MATERIAL FOR SHOE STIFFENERS WHICH COMPRISES A SHEET OF UNFELTED AND UNWOVEN TEXTILE FIBERS BOUND TOGETHER BY POLYVINLY ALCOHOL AND CONTAINING A COMPOSITIOON OF WHICH A MAJOR PROPORTION IS A RESINOUS MATERIAL SELECTED FROM THE GROUP CONSISTING OF OXIDIZED ASPHALT, OXIDIZED ROSIN AND PLASTICIZED STYRENE, SAID MATERIAL BEING STIFF BUUT SOMEWHAT FLEXIBLE AT TEMPERATURES BELOW 120* AND LIMP AT 180* F.
US191333A 1950-10-20 1950-10-20 Material for shoe stiffeners Expired - Lifetime US2648616A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819988A (en) * 1955-06-02 1958-01-14 American Viscose Corp Regenerated cellulose cordage
US2868665A (en) * 1957-03-07 1959-01-13 Albert R Mcmanus An impregnated corrugated paperboard, a composition therefor, and a process of making said composition
US2952062A (en) * 1957-09-09 1960-09-13 Continental Oil Co Method of curing concrete
US2972824A (en) * 1960-07-05 1961-02-28 Brown H H Shoe Co Inc Safety shoe with instep guard
US4308673A (en) * 1978-06-29 1982-01-05 Deutsche Gold-Und Silber-Scheideanstalt Vormals Roessler Stiffening and likewise non-slip material for the heel region of shoes containing this material and process for stiffening the heel region of shoes

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063649A (en) * 1934-04-19 1936-12-08 Beckwith Mfg Co Manufacture of impregnated fibrous base for shoe stiffener parts or the like
US2330314A (en) * 1940-08-23 1943-09-28 Du Pont Manufacture of nonwoven fabrics
US2346947A (en) * 1941-03-25 1944-04-18 Hercules Powder Co Ltd Method of saturating felted fibrous material
US2390347A (en) * 1941-01-21 1945-12-04 Beckwith Mfg Co Shoe stiffener and process of making the same
US2444931A (en) * 1947-04-24 1948-07-13 Beckwith Mfg Co Box toe stiffener
US2528793A (en) * 1946-01-26 1950-11-07 Kendall & Co Cotton felt and method of making the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063649A (en) * 1934-04-19 1936-12-08 Beckwith Mfg Co Manufacture of impregnated fibrous base for shoe stiffener parts or the like
US2330314A (en) * 1940-08-23 1943-09-28 Du Pont Manufacture of nonwoven fabrics
US2390347A (en) * 1941-01-21 1945-12-04 Beckwith Mfg Co Shoe stiffener and process of making the same
US2346947A (en) * 1941-03-25 1944-04-18 Hercules Powder Co Ltd Method of saturating felted fibrous material
US2528793A (en) * 1946-01-26 1950-11-07 Kendall & Co Cotton felt and method of making the same
US2444931A (en) * 1947-04-24 1948-07-13 Beckwith Mfg Co Box toe stiffener

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819988A (en) * 1955-06-02 1958-01-14 American Viscose Corp Regenerated cellulose cordage
US2868665A (en) * 1957-03-07 1959-01-13 Albert R Mcmanus An impregnated corrugated paperboard, a composition therefor, and a process of making said composition
US2952062A (en) * 1957-09-09 1960-09-13 Continental Oil Co Method of curing concrete
US2972824A (en) * 1960-07-05 1961-02-28 Brown H H Shoe Co Inc Safety shoe with instep guard
US4308673A (en) * 1978-06-29 1982-01-05 Deutsche Gold-Und Silber-Scheideanstalt Vormals Roessler Stiffening and likewise non-slip material for the heel region of shoes containing this material and process for stiffening the heel region of shoes
US4388768A (en) * 1978-06-29 1983-06-21 Degussa Ag Stiffening and non-slip material for the heel region of shoes

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