Knitting machine

Details Knitting machine Knitting machine

1978-11-09

1980-12-02

Reynolds, Wm. Carter

Textiles: knitting

Fabric manipulation

Take-ups

66157, 318 6, D04B 1588, D04B 3510

Patent

active

042363900

ABSTRACT:
Apparatus for controlling the material tension in a knitting machine, particularly a circular knitting machine, by employing a permanent magnet-excited d.c. motor and an associated circuit to drive a motor torque-dependent material take-off mechanism through the generation of a variable magnitude, pulsed current to power the motor. The magnitude of the current may be set by the operator, with the pulse
o pulse ratio of the current being controlled by the operating mode of the knitting device. In a preferred embodiment, an additional circuit monitors the operation of the current control circuit to detect and signal malfunctions.

REFERENCES:
patent: 2817220 (1957-12-01), Mahler et al.
patent: 2864248 (1958-12-01), Wiesinger
patent: 3406539 (1968-10-01), Wiesinger et al.
patent: 3458155 (1969-07-01), Planteijdt
patent: 3777235 (1973-12-01), Lahti
patent: 3938757 (1976-02-01), Sargunar
patent: 3940954 (1976-03-01), Romoli
patent: 4020655 (1977-05-01), Raisin et al.
patent: 4027506 (1977-06-01), Bitzer

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