Pneumatic threader for twisting apparatus

Details Pneumatic threader for twisting apparatus Pneumatic threader for twisting apparatus

1976-09-17

1977-09-13

Watkins, Donald

Textiles: spinning, twisting, and twining

Apparatus and processes

Web material

57106, D01H 1304, D01H 1312

Patent

active

040473724

ABSTRACT:
A pneumatic threader for a twisting apparatus has a nozzle formed with a counterbore so that the nozzle can be fitted over the end of the inlet tube of the twisting apparatus. In addition this nozzle is formed with a slot opening toward the tube and extending beyond the counterbore so that a filament engaged in this slot can freely pass into the tube. The slot may extend helically up around the tube so that automatic clamping of the filament is effected when it reaches the end of the helix. It is also possible to form the slot parallel to the air passage in the nozzle and to provide a clamping member for holding the filament end in the upper portion of this slot. To this end a lost-motion coupling may be provided between the valve-operating trigger of the pneumatic threading apparatus and the operating lever for opening of the clamp shortly after air flow has been started.

REFERENCES:
patent: 1962265 (1934-06-01), Wenzel
patent: 3333407 (1967-08-01), Bruin et al.
patent: 3482387 (1969-12-01), Slack
patent: 3605396 (1971-09-01), Guignard et al.
patent: 3731478 (1973-05-01), Franzen
patent: 3975893 (1976-08-01), Franzen

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