Overcasting machine for use in sewing insoles to uppers

Details Overcasting machine for use in sewing insoles to uppers Overcasting machine for use in sewing insoles to uppers

1992-05-06

1993-11-02

Crowder, Clifford D.

Sewing

Special machines

Leather sewing

112 20, 112162, 12 41, D05B 1502, A43D 6500

Patent

active

052575896

ABSTRACT:
An overcasting machine for use in sewing mated insoles to uppers with gathering of the uppers relative to the insoles is disclosed wherein a step-wise driven advance disk engages the uppers and an undriven pressure disk engages the insoles at a nip area between the disks, which are spring-loaded towards each other. The advance disk drives the material of the uppers which in turn at least in part drives the material of the insoles in an advance direction during sewing. A blade is provided which extends into the nip area between the advance and the pressure disks in order to slightly separate the uppers from the insoles so that mutual slippage between them and resulting gathering of the uppers is made possible. To improve the gathering operation, the blade is selectively moveable into various operational positions so that, depending on the properties of the uppers and of the insoles, the blade can project more or less towards and beyond the gap at the nip area in the direction of advance of the uppers and insoles.

REFERENCES:
patent: 1625633 (1927-04-01), Thero
patent: 2292762 (1942-08-01), Kucera
patent: 2370547 (1945-02-01), Kniessler
patent: 2730056 (1956-01-01), Wiesenfeld
patent: 3046920 (1962-07-01), McCann
patent: 4098202 (1978-07-01), Marforio et al.
patent: 4901656 (1990-02-01), Yoshida

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