Manufacture of shoes

Details Manufacture of shoes Manufacture of shoes

1980-07-07

1983-10-04

Lawson, Patrick D.

Boot and shoe making

Processes

Moccasins

36 14, A43D 900, A43D 1308

Patent

active

044070349

ABSTRACT:
In a process for manufacturing shoes in which an out-sole moulded in a sole mould by a first injection operation is joined to a lasted upper by a second injection operation the mould cavity for the second injection operation is defined by the lasted upper, side moulds and the out-sole while positioned within its sole mould and the joint between the side moulds and the sole mould is sealed by engagement of a marginal portion of the out-sole with the facing surfaces of the side moulds. In the case where the out-sole is shaped so as to provide in the finished shoe an exposed welt face the desired seal is effected by engagement of an inner marginal portion of the out-sole with the facing surface of the side moulds so as to leave an outer marginal portion, which forms the welt face, outside of the seal. Where this outer marginal portion is formed with a pattern the arrangement is such as to provide a small clearance between this outer marginal portion and the facing surface of the side moulds.

REFERENCES:
patent: 3806974 (1974-04-01), Di Paolo
patent: 3812604 (1974-05-01), Sato
patent: 26948971 (1954-11-01), Rollman

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