B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
28/53
B65H 51/20 (2006.01) D04B 15/48 (2006.01)
Patent
CA 1044450
ABSTRACT OF THE DISCLOSURE A thread supply device for textile machines, having a rotary thread drum to which thread is supplied from a storage bobbin. The thread is taken off the drum through a withdrawal eye assembly. According to the invention, the withdrawal eye assembly includes a switch-off eye which is spring-urged out of its co-axial arrangement with the drum and beneath same and is maintained in the co-axial arrange- ment by the tension of the thread passing therethrough. When the tension of the thread is reduced, the spring-urged switch-off eye can no longer maintain it co-axial position, is displaced from same by its spring and the displacement of the eye is transformed by known means, e.g. a switch, into a control signal actuating and alarm device, stopping the textile machine or the like. The displaced position of the switch-off eye is specific in that the switch-off eye assumes a position whereby a line taken through the point at which the loose thread passes over the withdrawal rim, and the center of the withdrawal eye is substantially parallel with the axis of the drum.
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