Winding – tensioning – or guiding – Strand tensioning device – Brake
Patent
1983-09-19
1984-06-26
Gilreath, Stanley N.
Winding, tensioning, or guiding
Strand tensioning device
Brake
242 54R, 242 99, 2421298, B65H 5904
Patent
active
044561989
ABSTRACT:
A welding wire dispenser for dispensing wire to a wire feeder comprising a support having a hub mounted thereon and extending upwardly therefrom. The hub has a horizontally disposed annular brake pad at its upper end. A vertically disposed and vertically movable shaft is rotatably mounted in the support and extends upwardly through the hub. A coil support is rotatably mounted on the upper end of the shaft and is vertically movable therewith. The coil support has a horizontally disposed annular portion at its lower end which is adapted to frictionally engage the annular brake pad to limit the rotation of the coil support at times. An arm is secured to the lower end of the shaft and extends upwardly and outwardly therefrom. A pulley is supported on the upper end of the arm and has the wire extending from the wire coil received thereon. A cam follower is mounted on the shaft within the hub and rolls upon a helical cam surface. As the wire feeder pulls wire from the coil, the arm pivots toward the wire feeder which causes the shaft to rotate and to raise the coil support upwardly so that the coil support will freely rotate.
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