Textiles: manufacturing – Thread finishing – Surface modification of running length
Patent
1976-06-16
1978-01-10
Mackey, Robert R.
Textiles: manufacturing
Thread finishing
Surface modification of running length
28264, D02G 112
Patent
active
040670929
ABSTRACT:
Apparatus for compression crimping is provided comprising means defining a compression crimping zone, means for feeding fibrous material into and means for withdrawing crimped fibrous material from the compression crimping zone, at least one movable member defining a lateral wall of the zone and being biased toward the fibrous material to restrict egress of the fibrous material from the zone and thereby exert a back pressure on the fibrous material, causing the fibrous material to buckle and thereby crimp in the zone, control means for acting on at least one of the fibrous material feeding means and fibrous material withdrawing means, preferably for deactuating both, in response to displacement beyond a predetermined extent of the movable member in a direction opposite to the direction in which the movable member is biased, and means for sensing the presence of the plug at a predetermined position in the zone and for regulating at least one of the fibrous material feeding means and fibrous material withdrawal means in response to said sensing.
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