Control system for tuck-in selvedge forming devices in a terry loom
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United States of America Patent
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Jul 11, 1995
Grant Date -
N/A
app pub date -
May 19, 1994
filing date -
May 28, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A control system for a plurality of tuck-in selvedge forming devices in a loom having a variable reed beat-up position includes a main shaft, a drive shaft connected to all the tuck-in selvedge forming devices, a modulator driven by the main shaft and having an output shaft which pauses at least once during each revolution of the main shaft, as well as a coupling unit rotatable with the drive shaft and operative to be selectively rotatably coupled to the modulator output shaft so that the drive shaft is driven by the main shaft. The coupling unit includes a ring fixed to the drive shaft and a first cover pivoted to the ring so that a key can enter into the recess of the modulator output shaft to rotatably couple the coupling unit to the modulator output shaft during its pauses. A second lever is biased so as to follow contours of a control cam and prevent the first key from entering the recess of the modulator output shaft. An electromagnet controlled by a logic unit cooperates with the second lever to prevent the second lever from engaging the first lever.
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