Handling: hand and hoist-line implements – Utilizing fluid pressure – Venturi effect
Patent
1980-10-24
1982-11-09
Cherry, Johnny D.
Handling: hand and hoist-line implements
Utilizing fluid pressure
Venturi effect
242 41, 242 81, 294 93, 414626, 414684, 414911, B66C 102, B66C 154
Patent
active
043581439
ABSTRACT:
The disclosure is directed to apparatus (11) for lifting, maneuvering and transferring a roll of material to an independently supported shaft (93). The apparatus is adapted for suspension from an overhead crane and comprises an elongated frame (12) the lower end of which is pivotally connected to a torque assembly (14) that includes a center probe (15). The center probe includes a plurality of radially expanding teeth (49) that engage the inner surface of the roll core and retain it on the center probe (15). An actuator (13) of the extensible-retractable type is pivotally connected between the upper end of the elongated frame (12) and one end of the torque arm assembly (14). Extension and retraction of the actuator (13) causes the torque arm assembly (14) and center probe (15) to move between substantially vertical and horizontal positions. The extreme end of the center probe includes a coupler (61) that releasably interlocks with a coupler (94) secured to the end of the machine shaft (93). The couplers permit the center probe and machine shaft to be interlocked in coaxial relation. A circular vacuum plate (67) is axially movable by pneumatic actuators (82, 83) between a retracted position in which a roll of material may be received on the center probe, and an extended position in which the roll of material is forceably transferred from the center probe to the machine shaft (93).
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Central Machine Corporation
Cherry Johnny D.
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