Shoe upper conforming machines

Details Shoe upper conforming machines Shoe upper conforming machines

1978-04-13

1980-03-11

Lawson, Patrick D.

Boot and shoe making

Lasting machines

Nipper stretcher

A43D 2100

Patent

active

041920333

ABSTRACT:
A control system for a shoe upper conforming machine, more especially a pulling over and toe lasting machine, includes a computer control which supplies control signals sequentially, according to a programmed instruction, to actuating means for the various operating elements of the machine. In particular, the release of the grippers is controlled in relation to the movement of the wiper means.
Furthermore, the power supply to the actuating means for effecting gripping and pulling is independent of that for the actuating means for wiping over and securing the lasting margin to the insole, the arrangement being such that the power supply to the latter is operatively connected only after the operation of the former is completed.

REFERENCES:
patent: 3105983 (1963-10-01), Deschenes et al.
patent: 3945075 (1976-03-01), Vornberger

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