US40408A - Improvement in boots and shoes - Google Patents

Improvement in boots and shoes Download PDF

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US40408A
US40408A US40408DA US40408A US 40408 A US40408 A US 40408A US 40408D A US40408D A US 40408DA US 40408 A US40408 A US 40408A
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shoes
boots
sole
improvement
stitches
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole-and-heel integral units
    • A43B13/38Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A43B13/39Built-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

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Description

I UNITED STATES PATENT OEEICE.
DANIEL E. HAYWARD, OF MELROSE, MASSACHUSETTS.
IMPROVEMENT IN BOOTS AND SHOES.
Specification forming part of Letters Patent No. 410,408, dated October 27, 1863.
To all whom t may concern:
Be it known that I, DANIEL EDWIN HAY- WARD, ot' Melrose, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Boots and Shoes, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part ot' this specitication, in which- Figure l is a view of my improved boot; Fig. 2, a view ot' the sole as seen from beneath; Fig. 3, a section upon the line m x of Fig. l.
Boots and shoes have been made having vulcanized indiarubber soles secured to the inner sole and upper-leather by nails which are clinched upon an iron plated last; but soles thus secured are not suitable for certain worksuch as ladies shoes or boots of high cost as the nails are soon rusted by the moisture ot' the foot, and are thus liable to dis.- calor the stockings. Where the india-rubber is cemented to the boot it is liable to be torn oii', and is easily loosened and detached,it`.
stand my invention, I will proceed to describe the manner in which I have carried it out.
My improved sole is made of any suitable rubber compound, and is vulcanized in a mold, within which is arranged a wire which forms the groovefin the tread of the sole. This groove has a double object First, it serves as a guide to the sewing-machine and insures the placing of the stitches at the proper distance from the edge of the sole, second, it throws the stitches so far beneath the bottom of the sole that the latter may be Worn nearly through before the stitches are exposed to wear. The sole thus formed is secured to the boot by sewingl upon any machine calculated for sewing the soles of shoes to the uppers, the groove j', as before stated, serving as a guide for the machine in placing the. stitches.
The compound which I have found to answer the purpose is made as follows: eight pounds crude rubber, two pounds litharge, one pound white lead, one pound lamp-black, four pounds calcined plaster, and six ounces flowers of sulphur. The above compound is then ground upon the ordinary heated rolls,
and after being placed in the molds is vulcanized by exposure for ten hours, or thereabout, to a heat of 2750 Fahrenheit. I do not, however, confine myself to any particular ingredients, or to any special proportionsot the same, nor to any determined degree of heat for vulcanizing the same. v
I do not claim a grooved. checkered, or roughened sole of rubber, such as are designed to be nailed onto a boot or shoe; but
What I do claim as a new article of manufacture is- An india-rubber sole for boots and shoes that is to be sewed thereon, andthat has achannel therein for the stitches to lie and be protected in, said cliannelbeing formed along the edge of the sole by the molds in which it is formed and vulcanized, substantially as herein described.
D. E. IIAYWARD. Witnesses:
SAM COOPER, N. W. STEARNS. l
US40408D Improvement in boots and shoes Expired - Lifetime US40408A (en)

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US40408A true US40408A (en) 1863-10-27

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2450755A1 (en) 2010-11-04 2012-05-09 Nivarox-FAR S.A. Synchronous escapement for clockwork

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2450755A1 (en) 2010-11-04 2012-05-09 Nivarox-FAR S.A. Synchronous escapement for clockwork

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