Thread-monitoring device for textile machines

Details Thread-monitoring device for textile machines Thread-monitoring device for textile machines

1981-10-21

1983-10-18

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

112273, 1393702, G01N 2186

Patent

active

044108036

ABSTRACT:
A thread-monitoring device for monitoring threads being fed to a textile machine, comprising for each pair of threads to be monitored, a two-arm lever pivotally mounted in a pendulum-like manner and provided at the free ends of its arms with respective thread guides. A pair of threads to be monitored is led down past a corresponding two-arm lever such that with the threads engaged in respective ones of the lever's thread guides the threads exert forces on the lever which normally balance out and leave the lever in a central position. Upon this balance of forces being upset, for example, due to thread breakage or unequal thread tensions, the lever is arranged to be displaced from its central position, this displacement being detected by suitable sensor means.

REFERENCES:
patent: 3565121 (1971-02-01), Svaty et al.

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