US2739096A - Method for the manufacture of leather belts and bracelets formed by two elongated leather strips - Google Patents

Method for the manufacture of leather belts and bracelets formed by two elongated leather strips Download PDF

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US2739096A
US2739096A US325188A US32518852A US2739096A US 2739096 A US2739096 A US 2739096A US 325188 A US325188 A US 325188A US 32518852 A US32518852 A US 32518852A US 2739096 A US2739096 A US 2739096A
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leather
strips
manufacture
flesh
edges
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US325188A
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Bayon Patrice Marie
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G1/00—Driving-belts
    • F16G1/02—Driving-belts made of leather
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43C—FASTENINGS OR ATTACHMENTS OF FOOTWEAR; LACES IN GENERAL
    • A43C9/00—Laces; Laces in general for garments made of textiles, leather, or plastics
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1052—Methods of surface bonding and/or assembly therefor with cutting, punching, tearing or severing
    • Y10T156/1062—Prior to assembly
    • Y10T156/1066—Cutting to shape joining edge surfaces only
    • 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
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24521—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface
    • Y10T428/24529—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness with component conforming to contour of nonplanar surface and conforming component on an opposite nonplanar surface

Definitions

  • the present invention relates to belts and bracelets formed by two leather strips joined together by their flesh sides. V p y In the manufacture of belts and bracelets of this kind, the two strips are either cut out simultaneously from two pieces of leather which have been glued together, or two strips of the same Width are glued together.
  • the four angles of the whole article that is to say the outer angles of each strip are blunted and rounded, whereafter the thus pre pared edges are smoothed or slicked so as to compress the fibers of the leather and to prepare them for the final application of a dye, and sometimes of a varnish, having a color matching that of the grain-side of the leather.
  • This method is very expensive and furthermore does not always yield perfect results, for on the one hand a perfect smoothing or slicking is sometimes difficult to be obtained and on the other hand leather treated by certain tanning processes, particularly by chrome-tanning, is difficult to be dyed. in any case, this known method does not make it possible to manufacture belts and bracelets of the kind referred to which are made of leathers of different colors, for it is practically impossible to dye the edges of the article neatly in two colors when said edges'have been prepared in the above described manner.
  • the present invention has for one of its objects a method for the manufacture of belts and bracelets formed by two leather strips ioined together by their flesh-sides, which avoids the above mentioned drawbacks of the known methods.
  • the method according to the invention is essentially characterised in that the inner sides of the edges of the previously and separately cut out leather strips are chamfered and then singed-by the method applied in the shoe manufacture, particularly to the visible edges of piece of leather added to the upper of a shoe-so that the grain side of the leather is caused to retract and forms along each edge of each strip a round-off which conceals the edge of the flesh of the leather, whereafter the two strips are joined together by their flesh-sides so that the said round-offs meet on each edge of the article.
  • the present method also makes it possible to manufacture two-color belts and bracelets. by using two leather strips of different colors, without the appearance of an intermediate color along the junction-edges.
  • the invention covers obviously also the articles manufactured by the above defined method.
  • the appended drawing shows the successive .stepsof I the manufacture of a belt by the method according to the. i
  • Fig. 1 is an enlarged cross section of the rough strip "cutout of apiece of leather.
  • Fig. 2 is a similar section of thesame strip,vafter the inner edges of the same have been singed.
  • Fig. 3 is a cross section of the finished belt.
  • two leather strips 1 are first cut tothe same width. These strips may have the same color or different colors.
  • the inner edges that is to say the edges of the fleshside 1a of each strip are then chamfered and singedby the method applied in the shoe manufacture, particularly to the visible edges of pieces of leather added to the j upper of a shoe-so that due to the action of the heat the grain-side 1b of the leather is caused to retract and forms a round-oil a (Fig. 2) which conceals the edge of the flesh of the'leather on each edge of the strip which has been thus treated.
  • the two strips are joined together by their flesh-sides, in the usual manner, that is to say by gluing, without or with stitching, in such manner that the round-offs a of the two strips meet on each edge of the article and that the periphery of the section of said article is formed by the grain-sides of the two strips, without discontinuity.
  • a method for the manufacture of leather belts and bracelets formed by two elongated leather strips, each having a flesh-side and a grain-side and joined together by their flesh-side, and having a continuous outer surface of leather grain-side, said method comprising: chamfering the two longitudinal side-edges of each strip, and while said strips are separate from each other, on the flesh-side thereof and over their entire length; singeing 2.
  • bracelets formed by two elongated leather strips, each having a flesh-side and a grain-side and joined together by their flesh-side, and having a continuous ridgeless and smooth outer surface of leather grain-side, said method comprising: chamfering the two longitudinal side-edges of each strip, and while said strips are separate from each other, on the flesh-side thereof and over their entire,

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

March 29, 1956 BAYON 2,739,096
METHOD FOR THE MANUFACTURE OF LEATHER BELTS AND BRACELETS FORMED BY TWO ELONGATED LEATHER STRIPS Filed D86. 10, 1952 'YH/ 'AkOY 7a1rice Mark EAY N 2,739,096 Eatented Mar. 20, 1956 METHOD FOR THE MANUFACTURE OF LEATHER BELTS AND BRACELETS FQRWD BY TW ELONGATED LEATHER STRIPS PatriceMarie Bayou, Avriile, France Application December-10, 1952, Serial No. 325,188
Claims priority, application France November 14', 1952 a 2 Claims. or. 154-116) The present invention relates to belts and bracelets formed by two leather strips joined together by their flesh sides. V p y In the manufacture of belts and bracelets of this kind, the two strips are either cut out simultaneously from two pieces of leather which have been glued together, or two strips of the same Width are glued together. In both cases, in order to avoid the unsightly appearance of the leather flesh showing on the cut edges, the four angles of the whole article, that is to say the outer angles of each strip are blunted and rounded, whereafter the thus pre pared edges are smoothed or slicked so as to compress the fibers of the leather and to prepare them for the final application of a dye, and sometimes of a varnish, having a color matching that of the grain-side of the leather.
This method is very expensive and furthermore does not always yield perfect results, for on the one hand a perfect smoothing or slicking is sometimes difficult to be obtained and on the other hand leather treated by certain tanning processes, particularly by chrome-tanning, is difficult to be dyed. in any case, this known method does not make it possible to manufacture belts and bracelets of the kind referred to which are made of leathers of different colors, for it is practically impossible to dye the edges of the article neatly in two colors when said edges'have been prepared in the above described manner.
The present invention has for one of its objects a method for the manufacture of belts and bracelets formed by two leather strips ioined together by their flesh-sides, which avoids the above mentioned drawbacks of the known methods.
The method according to the invention is essentially characterised in that the inner sides of the edges of the previously and separately cut out leather strips are chamfered and then singed-by the method applied in the shoe manufacture, particularly to the visible edges of piece of leather added to the upper of a shoe-so that the grain side of the leather is caused to retract and forms along each edge of each strip a round-off which conceals the edge of the flesh of the leather, whereafter the two strips are joined together by their flesh-sides so that the said round-offs meet on each edge of the article.
From the foregoing it will be understood that since the edges of the grain-sides of the two leather strips are in contact with each other, there subsists no discontinuity of the grain side of the leather. it is thus no more necessary to blunt, round, smooth and dye the outer angles of the leather strips, and the obtained article presents, as compared with the articles made by the older method which includes these operations, a much more perfect and also more durable finish, since the dyeing of the edges, which is likely to lose color, has been done away with.
The present method also makes it possible to manufacture two-color belts and bracelets. by using two leather strips of different colors, without the appearance of an intermediate color along the junction-edges.
The invention covers obviously also the articles manufactured by the above defined method.
The appended drawing shows the successive .stepsof I the manufacture of a belt by the method according to the. i
invention.
Fig. 1 is an enlarged cross section of the rough strip "cutout of apiece of leather.
Fig. 2 is a similar section of thesame strip,vafter the inner edges of the same have been singed.
Fig. 3 is a cross section of the finished belt.
According to the invention two leather strips 1 are first cut tothe same width. These strips may have the same color or different colors.
. The inner edges, that is to say the edges of the fleshside 1a of each strip are then chamfered and singedby the method applied in the shoe manufacture, particularly to the visible edges of pieces of leather added to the j upper of a shoe-so that due to the action of the heat the grain-side 1b of the leather is caused to retract and forms a round-oil a (Fig. 2) which conceals the edge of the flesh of the'leather on each edge of the strip which has been thus treated. 1
Finally, as shown on Fig. 3, the two strips are joined together by their flesh-sides, in the usual manner, that is to say by gluing, without or with stitching, in such manner that the round-offs a of the two strips meet on each edge of the article and that the periphery of the section of said article is formed by the grain-sides of the two strips, without discontinuity.
I claim:
l. A method for the manufacture of leather belts and bracelets formed by two elongated leather strips, each having a flesh-side and a grain-side and joined together by their flesh-side, and having a continuous outer surface of leather grain-side, said method comprising: chamfering the two longitudinal side-edges of each strip, and while said strips are separate from each other, on the flesh-side thereof and over their entire length; singeing 2. A method for the manufacture of leather belts and.
bracelets formed by two elongated leather strips, each having a flesh-side and a grain-side and joined together by their flesh-side, and having a continuous ridgeless and smooth outer surface of leather grain-side, said method comprising: chamfering the two longitudinal side-edges of each strip, and while said strips are separate from each other, on the flesh-side thereof and over their entire,
length; singeing said chamfered side-edges, while said strips are separate from each other, thereby retracting the grain-side of said strips and forming longitudinally of each of said side-edges an outer grain-side round-off having a free edge and concealing said flesh-side; thereafter joining said two strips by their flesh-side; and simultaneously over the length of said joined strips, joining the free edge of the round-off on one side of one strip without overlap to the free edge of the round-off on the corresponding side of the other strip.
References Cited in the file of this patent Pestel Oct. 31, 1939

Claims (1)

1. A METHOD FOR THE MANUFACTURE OF LEATHER BELTS AND BRACELETS FORMED BY TWO ELONGATED LEATHER STRIPS, EACH HAVING A FLESH-SIDE AND A GRAIN-SIDE AND JOINED TOGETHER BY THEIR FLESH-SIDE, AND HAVING A CONTINUOUS OUTER SURFACE OF LEATHER GRAIN-SIDE, SAID METHOD COMPRISING: CHAMFERING THE TWO LONGITUDINAL SIDE-EDGES OF EACH STRIP, AND WHILE SAID STRIPS ARE SEPARATE FROM EACH OTHER, ON THE FLESH-SIDE THEREOF AND OVER THEIR ENTIRE LENGTH; SINGERING SAID CHAMFERED SIDE-EDGES, WHILE SAID STRIPS ARE SEPARATE
US325188A 1952-11-14 1952-12-10 Method for the manufacture of leather belts and bracelets formed by two elongated leather strips Expired - Lifetime US2739096A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153245A (en) * 1961-07-18 1964-10-20 Maid Rite Novelty Corp Embossed shoulder straps
US3305315A (en) * 1962-09-20 1967-02-21 Union Carbide Corp Process for manufacturing flexible carbonaceous textile material
US3425075A (en) * 1965-06-24 1969-02-04 Alan E Murray Method of making leather footwear

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1543756A (en) * 1922-02-27 1925-06-30 United Shoe Machinery Corp Edge-finishing machine
US1799868A (en) * 1930-05-28 1931-04-07 Jr Albert H Sauer Leather wrist-watch strap and method of manufacturing it
US2017055A (en) * 1934-09-28 1935-10-15 United Shoe Machinery Corp Edge finishing machine
US2153351A (en) * 1936-01-24 1939-04-04 Celanese Corp Textile article
US2177785A (en) * 1936-03-03 1939-10-31 United Shoe Machinery Corp Finishing edges of leather pieces

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1543756A (en) * 1922-02-27 1925-06-30 United Shoe Machinery Corp Edge-finishing machine
US1799868A (en) * 1930-05-28 1931-04-07 Jr Albert H Sauer Leather wrist-watch strap and method of manufacturing it
US2017055A (en) * 1934-09-28 1935-10-15 United Shoe Machinery Corp Edge finishing machine
US2153351A (en) * 1936-01-24 1939-04-04 Celanese Corp Textile article
US2177785A (en) * 1936-03-03 1939-10-31 United Shoe Machinery Corp Finishing edges of leather pieces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3153245A (en) * 1961-07-18 1964-10-20 Maid Rite Novelty Corp Embossed shoulder straps
US3305315A (en) * 1962-09-20 1967-02-21 Union Carbide Corp Process for manufacturing flexible carbonaceous textile material
US3425075A (en) * 1965-06-24 1969-02-04 Alan E Murray Method of making leather footwear

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