Title: Method for stiffening workpieces such as shoe components

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 thermpolastic 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.

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Inventors: Babson, Edward S. (Ipswitch, MA, US)
Gorini, Robert F. (Beverly, MA, US)

Application Number: 625931
Filing Date: 1975-10-28
Publication_date: 1976-08-10
Assignee: USM Corporation (Boston, MA)
Primary Class(es): 12/146D
Other Classes:
US Patent Ref:

3316573	May, 1967	Chaplick et al.	12/146.
3647616	Mar, 1972	Zemlin	12/146.

Other Refs:
Primary Examiner: Lawson, Patrick D.
Assistant Examiner:
Attorney: Johnson; Carl E., White; Vincent A., Megley; Richard B.