Shoe backpart molding machine

Details Shoe backpart molding machine Shoe backpart molding machine

1979-10-03

1981-02-10

Lawson, Patrick D.

Boot and shoe making

Upper machines

Loose upper shaping

12 535, A43D 1100

Patent

active

042492793

ABSTRACT:
An outer molding band for a shoe upper backpart portion molding machine comprises two support portions, each carrying a block of relatively hard rubber, each block in turn carrying a molding cushion which is shaped to the shape of an inner mold. A cover, which acts as a diaphragm, to which air may be admitted, is arranged between the diaphragm and the support portion, to press the block, and thus the mold cushion carried therewith, against the inner form. The two support portions are pivotable inwardly to a position in which the mold cushions supported thereby engage the inner mold, or a shoe upper placed over the inner mold, and where air may be admitted as aforementioned, to apply a molding pressure to that shoe upper.

REFERENCES:
patent: 2983934 (1961-05-01), Bertrand
patent: 3345661 (1967-10-01), Wilisch
patent: 3775796 (1973-12-01), Schindler et al.

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