Method and apparatus for controlling and operating a container c

Details Method and apparatus for controlling and operating a container c Method and apparatus for controlling and operating a container c

1995-10-12

1998-02-03

Brahan, Thomas J.

Traversing hoists

Methods

212275, B66C 1306

Patent

active

057134774

ABSTRACT:
The crane comprises a horizontal boom or other support structure having at least one rail thereon, a trolley along the rail, a rope hoist, and a load carrying device. A control system causes the driven trolley to be stopped momentarily at a first position. The control system then restarts the trolley and stops it at a second position directly over a transfer position. The control system includes an encoder for determining the total length of the pendulum of the crane and the load. The stopping of the trolley at the first position causes the load to swing forwardly into the first quarter of a pendulum cycle. The control system includes means for adjusting the distance between the first and second positions to correspond with the horizontal component traveled by the load during the first quarter of the pendulum cycle whereby the load is stopped without any residual swinging movements.

REFERENCES:
patent: 3921818 (1975-11-01), Yamagishi
patent: 4512711 (1985-04-01), Ling et al.
patent: 5152408 (1992-10-01), Tax et al.
Published paper entitled Automated Container Handling-A Step into The Future by C. D. Ramsden, President and General Manager of PACECO, a division of Fruehauf Corporation. It is believed that this paper was read by Mr. Ramsden at the 1970 meeting of the American Association of Ports in Montreal, Quebec, Canada and was published in the proceedings of said meeting as pp. 79-85.
Publication entitled Bulk Handling at Ocean Ports, by John F. Oyler, pp. 586-593, presented at the Seminar on Transportation Systems for Bulk Solids, University of Pittsburgh, Dec. 6-7, 1972 Research is underway as to the date of this publication and the publisher's name.

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