Lifting sling

Details Lifting sling Lifting sling

1990-01-26

1991-08-06

Focarino, Margaret A.

Handling: hand and hoist-line implements

Spacing hoist bar or frame

Load supporting units

294 8156, 294 8161, B66C 112, B66C 128

Patent

active

050371517

ABSTRACT:
In a lifting sling for lifting up at least one elongated article, a pair of wire rope units depend respectively from a pair of hooking units which are arranged respectively at opposite ends of the elongated article. A pair of guide arm units each having one end pivotally attached to the elongated beam respectively adjacent to the opposite ends thereof accommodate and support respectively the pair of wire rope units. A pair of actuator units each has one end pivotally attached to the elongated beam and the other end pivotally attached respectively to the pair of guide arm units. The pair of actuator units respectively move the pair of guide arm units toward and away from each other about their corresponding ends. A controller is connected to the pair of actuator units for operating the same to move the pair of guide arm units toward and away from each other.

REFERENCES:
patent: 2603523 (1952-07-01), Cameron
patent: 4293155 (1981-10-01), Grant
patent: 4736976 (1988-04-01), Berzenye

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