Apparatus for stopping the oscillation of hoisted cargo

Details Apparatus for stopping the oscillation of hoisted cargo Apparatus for stopping the oscillation of hoisted cargo

1996-08-29

1998-10-13

Brahan, Thomas J.

Traversing hoists

Having means to prevent or dampen load oscillations

Antisway

294 814, B66C 1308

Patent

active

058199624

ABSTRACT:
An apparatus for stopping the transverse swing and skew motions of a hoisted cargo according to the present invention comprises a pair of movable frames (15) which are disposed on a transversely moving trolley (1) along left and right sides of the trolley (1) and which are movable with respect to the trolley (1) in a direction of movement of the trolley, two sets of guide sheaves (13, 14) for hoisting ropes fixedly arranged on each of said pair of movable frames (15) with a certain distance between the sets, and a pair of drive means (17) disposed on said trolley (1) for moving said pair of moving frames (15) independently with respect to said trolley (15), wherein the swing or skew motion, or a combination of these motions, of the cargo hoisted by the trolley (1) is reduced by the operation of the movable frames (15) (guide sheaves) disposed the opposite sides of the trolley (1). The apparatus can be made simpler, the control becomes easier and the arrangement of the apparatus enjoys a larger degree of freedom.

REFERENCES:
patent: 3653518 (1972-04-01), Polen
patent: 3825128 (1974-07-01), Cooper
patent: 3837503 (1974-09-01), Komatsu
patent: 4531647 (1985-07-01), Higuchi et al.
patent: 4687110 (1987-08-01), Partanen et al.
patent: 5018631 (1991-05-01), Reimer

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