Control system for pneumatically treated yarns

Details Control system for pneumatically treated yarns Control system for pneumatically treated yarns

1977-04-28

1978-04-11

Queisser, Richard C.

Textiles: spinning, twisting, and twining

Apparatus and processes

Web material

28276, 57 773, D01H 792, D02G 104

Patent

active

040831728

ABSTRACT:
A control system for the pneumatic treatment of yarns, for example, self-twist yarns, includes a pneumatic-hydraulic transducer which converts a control signal related to the speed of the yarn supply means into variations in hydraulic pressure. The transducer is connected to a hydraulic manifold which has branch hydraulic lines leading to hydraulically controlled pneumatic valves. The pneumatic valves control the flow of compressed air to yarn air treatment devices such as jet twister devices.

REFERENCES:
patent: 3775955 (1973-12-01), Shah

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