Device for varying the pocket length provided on sewing machines

Details Device for varying the pocket length provided on sewing machines Device for varying the pocket length provided on sewing machines

1976-09-21

1978-06-27

Hunter, H. Hampton

Sewing

Special machines

Buttonhole

11212115, D05B 310

Patent

active

040968103

ABSTRACT:
A device for varying the pocket length provided on sewing machines for making welted pockets comprising a bed, a standard, an arm, a head, two groups with adjustable positioning carrying a mounting for driving valves and a mounting for one of two patch turners, frames for carrying the valves and the patch turner movable relative to the groups, pneumatic cylinders fixed to the groups to move the frames to two extreme positions, corresponding to the two extreme operating positions of the pneumatic cylinders and lock blocks positioned intermediate the extreme positions to stop movement of the frames intermediate the extreme positions. The lock blocks are fixed to the end of a piston rod mounted in a cylinder.

REFERENCES:
patent: 2573359 (1951-10-01), Rich
patent: 3653345 (1972-04-01), Bianchi
patent: 3745946 (1973-07-01), Bianchi
Reece Series PW, Pocket Welting Machine, 2nd Edition; The Reece Corp., pp. Cover & 21; Feb. 1965.

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