Apparatus for rotating heavy objects

Details Apparatus for rotating heavy objects Apparatus for rotating heavy objects

1976-11-29

1978-09-19

Hoffman, Drayton E.

Work holders

Relatively movable jaws

Jaw features

269 46, 294 74, 294 81R, B65G 1748

Patent

active

041147650

ABSTRACT:
Apparatus for rotating a heavy object about its longitudinal axis consisting of an I-beam having a number of openings along its length and a pair of units for revolving endless cords for supporting the heavy object. The units are attached to the I-beam by pins inserted through the openings and are lifted by a crane together with said I-beam. Further, means are provided to prevent slip of the cord at the pulleys and disengagement of the cord from the pulleys when the cords slacken.

REFERENCES:
patent: 2793904 (1957-05-01), Gale
patent: 3545629 (1970-12-01), Kaplan
patent: 3602544 (1971-08-01), Marsh
patent: 3841498 (1974-10-01), Heidrich

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