Machines for making welted openings in a piece of material or si

Details Machines for making welted openings in a piece of material or si Machines for making welted openings in a piece of material or si

1980-09-17

1982-07-27

Nerbun, Peter P.

Sewing

Special machines

Darning

112 68, D05B 2100, D05B 310

Patent

active

043411690

ABSTRACT:
A machine for making welted openings in a piece of material or similar, comprises control means arranged so as to cause it to make, in a pre-established sequence and cyclically, a succession of welted openings having different lengths requiring respectively single and indentical manual actions for starting up. The control means comprise:

REFERENCES:
patent: 3074632 (1963-01-01), Braun et al.
patent: 3653345 (1972-04-01), Bianchi
patent: 3763802 (1973-10-01), Champney et al.
patent: 3814037 (1974-06-01), Nicolay
patent: 4100865 (1978-07-01), Landau, Jr. et al.

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