Winding – tensioning – or guiding – Strand guide – Oscillatable or reciprocable
Patent
1988-05-03
1990-01-09
Gilreath, Stanley N.
Winding, tensioning, or guiding
Strand guide
Oscillatable or reciprocable
B65H 5728
Patent
active
048922625
ABSTRACT:
A level winder for a winch has a cable control element movable between the edges of the drum of the winch in a manner that defines two cable path segments, the sum of the lengths of which remain constant. The first cable path segment extends from a fleet point, i.e., a stationary point relative to the winch, to the cable control element. The second cable path segment extends from the cable control element to the end of the helical configuration on the drum of the winch, i.e., the point on the drum where the cable must be laid down to continue the contiguous helical turns. Preferably, the cable control element is an arm pivotally mounted on a carrier frame to swing back and forth from edge to edge of the drum in a plane parallel to the drum axis. The carriage on which the cable control arm is mounted is pivotally mounted relative to the drum so the axis of rotation of the carriage interesects the axis of rotation of the cable control arm. The carrier is itself pivotally mounted to rotate about the axis of the drum. A cable tensioner maintains tension on the cable when the cable is not tensioned by a load. A no-load lock on the cable control arm maintains the cable control arm at a position above the end of the helical configuration when the cable-winding operation is interrupted. A damping element prevents unrestrained movement of the cable control arm when subjected to abrupt forces.
REFERENCES:
patent: 736472 (1903-08-01), Anderson
patent: 2473628 (1949-06-01), Allison
patent: 3248088 (1966-04-01), Benson et al.
patent: 4515329 (1985-05-01), Sandvik
George Hurst Level Winders, Inc.
Gilreath Stanley N.
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