Machine for stiffening workpieces such as shoe components

Details Machine for stiffening workpieces such as shoe components Machine for stiffening workpieces such as shoe components

1975-01-06

1976-03-23

Lawson, Patrick D.

Boot and shoe making

Upper machines

With diverse operations

A43D 1100

Patent

active

039450740

ABSTRACT:
A method and a machine for stiffening part of a flexible workpiece, such as the toe portion of a vamp, causes it to register with the tacky layer of a correspondingly shaped molten deposit of thermoplastic which simultaneously is being cooled to effect release. The entire deposit is transferred to the selected toe area and smoothly covers any surface irregularities or apertures. The surface receiving the molten deposit is flat and cooled but not recessed so that peripheral portions of the upper layer of the deposit are not chilled as rapidly as its under layer and remain deformable during register of the toe portion therewith. A workholder preferably includes a substantially rigid margin clamping means cooperative with a yieldable work engaging pad, a relatively non-compressed portion of the pad unmasked by the clamping means defining three dimensionally the adhered charge printed onto the work.

REFERENCES:
patent: 2006071 (1935-06-01), Edwards
patent: 2332008 (1943-10-01), Paulsen

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