Apparatus for connecting a shoe sole to its shaft

Details Apparatus for connecting a shoe sole to its shaft Apparatus for connecting a shoe sole to its shaft

1976-05-19

1977-05-24

Lawson, Patrick D.

Boot and shoe making

Combined sole and upper machines

Lasting with laying and/or leveling

12142RS, 425119, A43D 8900, A43D 900, A43G 120

Patent

active

040245942

ABSTRACT:
Apparatus for connecting the sole of a shoe with its shaft comprising a mold having a contour corresponding to the shape of the sole and at least two jaws being movably supported and being arranged for being pressed against the mold and for laterally enclosing the mold so as to bend an edge portion of the shaft against the side of the mold, said jaws being provided with rims extending in an inward direction and overlapping the edge of the mold over its total circumference, said rims having a smaller height as compared with the width of the protruding and bent edge of the shaft, and a press ram cooperating with the mold and having a contour approximately corresponding to the border line, facing the center of the mold, of the rims of the jaws, the mold and the press ram being formed as electrodes connected to a radio frequency generator.

REFERENCES:
patent: 3332097 (1967-07-01), Rollman et al.
patent: 3742544 (1973-07-01), Auberry et al.

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