Apparatus for pneumatically separating a foot lap from a spinnin

Winding – tensioning – or guiding – Coil holder or support – Spool or core

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Details

B65H 6708, B65H 5422

Patent

active

040364445

ABSTRACT:
A housing structure is formed with a suction connection to which pneumatic suction is applied, the suction connection internally terminating in a nozzle which surrounds a rotatable centering cone. The support for the spinning cop, externally of the nozzle, is ring-shaped. A thread drawn out by suction through the nozzle past the ring-shaped support can be clamped against the lower surface thereof upon axial movement of a clamping element for a first distance, complete movement of the clamping element then clamping a further portion of the drawn-off thread against a second clamping surface so that the thread will be taut, and placed in interfering position with a knife edge which cuts the thread at a predetermined point to ensure severing of the drawn-off thread. To provide for a long foot lap, the cop can be lifted repeatedly off the support surface after the thread has been first clamped so that thread is unwound therefrom.

REFERENCES:
patent: 2755857 (1956-07-01), Furst
patent: 3059866 (1962-10-01), Reiners
patent: 3295776 (1967-01-01), Cruickshank et al.
patent: 3329362 (1967-07-01), Kieronski
patent: 3355118 (1967-11-01), Kupper
patent: 3373948 (1968-03-01), Raasch
patent: 3406920 (1968-10-01), Kamp
patent: 3471101 (1969-10-01), Moyer et al.
patent: 3608843 (1971-09-01), Siedlich

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