Winding – tensioning – or guiding – Coil holder or support – Spool or core
Patent
1977-05-03
1978-08-15
Gilreath, Stanley N.
Winding, tensioning, or guiding
Coil holder or support
Spool or core
B65H 5120
Patent
active
041067134
ABSTRACT:
A thread delivery device for a textile machine having a rotatable drum on which a thread issuing from a thread bobbin can be wound tangentially for forming an intermediate thread storage. The drum has a lower thread removal edge over which the thread can be withdrawn tangentially for permitting positive thread delivery. A thread guide member is stationarily positioned radially outside of the drum approximately at the level of the removal edge to guide the withdrawn thread. A thread control element is disposed in engagement with the withdrawn thread at a location between its engagement with the drum and the thread guiding member. The thread control element, which is movable transversely relative to the withdrawal path of the thread, is positioned approximately at the level of the removal edge of the drum and is maintained in this position by its engagement with the withdrawn thread so long as the normal working tension is maintained in the thread. When the tension in the withdrawn thread decreases, then the thread control element moves transversely of the thread path, either due to its own weight or due to the urging of a spring, downwardly into a position wherein the thread control element is disposed below the plane of the removal edge to prevent the slack thread from being reversely wound on the drum.
REFERENCES:
patent: 3625444 (1971-12-01), Hatay
patent: 3791599 (1974-02-01), Jacobsson
patent: 3820731 (1974-06-01), Rosen
patent: 3883083 (1975-05-01), Rosen
Aktiebolaget IRO
Gilreath Stanley N.
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