Knitting machine
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United States of America Patent
Stats
-
Dec 2, 1980
Grant Date -
N/A
app pub date -
Nov 9, 1978
filing date -
Nov 9, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
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/no 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.
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