Lasting machine with latex adhesive delivery

Details Lasting machine with latex adhesive delivery Lasting machine with latex adhesive delivery

1977-03-17

1978-02-21

Lawson, Patrick D.

Boot and shoe making

Processes

Lasting

12 83, A43D 2100

Patent

active

040743837

ABSTRACT:
The method of lasting footwear with liquid latex comprising depositing the latex in a wet, liquid, low-viscosity, nonadhesive form on the surface of the feed roll, of a pair of cooperating feed rolls of a progressive-type lasting machine, which normally has contact with the inner side of the lasting margin of the upper material at a place apart from the lasting margin, while the deposited latex is traveling from the place of deposit on the surface of the feed roll having contact with the inner side of the lasting margin to the place of contact with the lasting margin, spreading it uniformly thereon and rendering it partially coagulated and adhesive, transferring the partially coagulated adhesive latex to the lasting margin at the place of contact and, as the latex-coated surface of the lasting margin is released, pressing it against the latex-receptive surface of the insole, and apparatus for carrying out the method.

REFERENCES:
patent: 2607936 (1952-08-01), Kamborian
patent: 2676345 (1954-04-01), Kamborian
patent: 3315288 (1967-04-01), Forma

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