B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
242/28
B65H 75/00 (2006.01)
Patent
CA 1232590
ABSTRACT OF THE DISCLOSURE A novel system is provided to maintain electrical continuity between a point at the tow cable termination wrapped on the exterior of the rotating drum to a fixed termination external to the drum, located on the winch base. The system is an improvement in an apparatus for transferring cable between a driven rotatable spool and a fixed spool where the rotatable spool is mounted on a stub shaft and the fixed spool is coaxially mounted with respect to the rotatable spool along a common axis. The improvement combination comprises an arm which is secured to an axle which, in turn, in the absence of other constraints, would be freely rotatable mounted on the stub shaft. The arm extends in a direction substantially perpendicular to the common axis for rotation around the axis of rotation of the driven rotatable spool. A planetary pulley is mounted for rotation at the outer end of the arm, the radial plane of the planetary pulley being substantially parallel to the common axis, the planetary pulley being mounted so as to accommodate cable as it is being transferred between the rotatable spool and the fixed spool. Positive driving structure for the arm is provided which includes an element which is secured to one face of the axle, and is adapted to be in driving contact with an actuatable, cooperative member which is operatively associated with the driven rotatable spool. Finally, positive braking structure for the arm is provided which includes an element which is secured to the other face of the axle, and which is adapted to be in driving contact with an actuatable cooperative member which is operatively associated with said fixed spool. In use, rotation of the rotatable spool in a first direction causes the positive driving means to be actuated, and causes the arm to rotate out ABSTRACT - Page 2 of the influence of the positive braking structure around the arm in the same direction of rotation as the rotatable spool at the same speed of rotation as that of the rotatable spool. Rotation of the rotatable spool in the second direction causes the positive braking structure to apply a braking force to the rotation of the axle, and causes the arm to be rotated out of the influence of the positive driving structure, thereby to control cable tension.
451014
Borden Ladner Gervais Llp
Fleet Industries A. Division Of Fleet Aerospace Corporation
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