Textiles: manufacturing – Thread finishing – Surface modification of running length
Patent
1976-06-16
1978-02-28
Mackey, Robert R.
Textiles: manufacturing
Thread finishing
Surface modification of running length
28251, D02G 112
Patent
active
040757463
ABSTRACT:
Apparatus for compression crimping fibrous material, such as synthetic continuous filament yarn, is provided comprising means defining a compression crimping zone, means for feeding fibrous material into the compression crimping zone and a pair of movable members each having a face substantially opposed to a face of the other, said faces defining lateral walls of the zone and being biased toward each other 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, form a plug in the zone and thereby crimp in the zone, the aforementioned face of each of the members being laterally restricted by means rigidly connected to the member whereby the plug is prevented from escaping laterally from between the substantially opposed faces of the members. Preferably, the means laterally restricting the aforementioned face of each of the members is a pair of substantially parallel walls defining the side walls of a channel, the channel having a bottom defined by the face. Most preferably, the side walls are integral with the bottom of the channel, in other words, the channel is formed in the member.
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patent: 3587145 (1971-06-01), McKinney et al.
patent: 3639955 (1972-02-01), Fleissner et al.
patent: 3938226 (1976-02-01), Roberts
Kling-Tecs, Inc.
Mackey Robert R.
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