The invention is a counter-balanced, multiple cable construction crane. The apparatus for hoisting payloads comprises a crane having a lifting means, the lifting means comprising an end effector means and three suspension means or cables. One end of each cable attaches to a different winding means located on the lifting means, and the other end of each cable attaches to a different point on the end effector, such that the three cables have a theoretical point of convergence with this point corresponding to the center of mass of the payload. Three controls command rotation of the winding means to a predetermined position. Accordingly, the crane provides precise and autonomous positioning of the payload without human guidance. The crane further comprises a counter-balancing means. Two controls position the counter-balancing means to offset the overturning moment which arises during the lifting of heavy payloads.


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    Titel :

    Counter-Balanced, Multiple Cable Construction Crane


    Beteiligte:
    M. M. Mikulas (Autor:in) / L. Yang (Autor:in)

    Erscheinungsdatum :

    1991


    Format / Umfang :

    21 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Counter-balanced, multiple cable construction crane

    Mikulas, Martin M., Jr. / Yang, Li-Farn | NTRS | 1993


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