Apparatus for stiffening shoe insoles

Details Apparatus for stiffening shoe insoles Apparatus for stiffening shoe insoles

1977-02-03

1978-10-31

Lawson, Patrick D.

Boot and shoe making

Sole machines

Assembling

12146S, A43D 3100

Patent

active

041225732

ABSTRACT:
An apparatus for forming a shoe shank directly on the bottom of a shoe insole from a strip of initially flexible, uncured thermosetting material includes a radiant heater and resilient means for engaging the shank strip to orient, retain and resiliently urge the shank strip against the insole bottom while the radiant heater activates the shank strip.

REFERENCES:
patent: 2151974 (1939-03-01), Kennison et al.
patent: 2232767 (1941-02-01), Brophy
patent: 2294982 (1942-09-01), Hathaway
patent: 2305670 (1942-12-01), Cantley
patent: 2352520 (1944-06-01), Dawson

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