Lockstitch sewing machine

Details Lockstitch sewing machine Lockstitch sewing machine

1986-07-31

1987-10-27

Reynolds, Wm. Carter

Sewing

Special machines

Leather sewing

112190, 112232, D05B 1504, D05B 5714, D05B 6914

Patent

active

047021837

ABSTRACT:
A lockstitch sewing machine, particularly for use as an insole stitcher, having a stitching mechanism arranged for cyclically repeating operation and including a horizontally mounted rotary shuttle, has the shuttle arranged for rotation in a constant direction at a cyclically varying angular velocity such that a major part of each rotation, e.g., a complete rotation takes place in a minor part of each cycle, e.g., one quarter of the cycle. The rotation of the shuttle is provided, e.g., by a Geneva cam.

REFERENCES:
patent: 837283 (1906-12-01), Corcoran
patent: 1093239 (1914-04-01), Ballard
patent: 1302219 (1919-04-01), Reece
patent: 3246619 (1966-04-01), Kawaguchi
patent: 4488499 (1984-12-01), Giaimo et al.

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