Advancing material of indeterminate length – With material-responsive control means – To regulate longitudinal movement of material
Patent
1988-10-31
1989-11-07
Jillions, John M.
Advancing material of indeterminate length
With material-responsive control means
To regulate longitudinal movement of material
242 8651, 254268, B66D 148, B60P 300
Patent
active
048786071
ABSTRACT:
The present disclosure describes an apparatus for unreeling a cable. The apparatus comprises a drawing mechanism for unreeling the cable. This drawing mechanism includes a motor provided with a shaft, a disk having its center rigidly locked to the shaft, the disk being provided with three pins perpendicular to its surface, and a wheel having its center positioned around the shaft by means of a ball bearing. The wheel has one of its lateral sides adjacent to the disk surface provided with the pins, the side of the wheel being provided with three slots extending circumferentially for receiving the three pins in such a manner that phase displacement is allowed between the disk and the wheel. Three springs are provided for keeping each pin against the forward extremity of its respective slot. The circumference of the wheel is covered by a resilient friction-surface adapted to squeeze the cable against a rotative guiding roller which allows unreeling of the cable by rotative movement of the wheel. The apparatus also comprises a hydraulic cylinder for applying the wheel against the rotative guiding roller, and a detecting and controlling mechanism for detecting a phase displacement between the wheel and the disk, and, upon detection of such phase displacement, activating the motor, when the cable is in a rest position, or disabling the motor when the cable is unreeling.
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Han Phillip S.
Jillions John M.
Less Micanik Inc.
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