Lifting apparatus for heavy folding doors

Details Lifting apparatus for heavy folding doors Lifting apparatus for heavy folding doors

B - Operations, Transporting

66

D

294/50

B66D 1/14 (2006.01) B66D 1/36 (2006.01)

Patent

CA 1293284

ABSTRACT OF THE DISCLOSURE A single, telescopic tubular steel pole is supported by an elongated steel channel base having rubber wheels on each end. The pole is leaned and supported against the top of a door opening in a building by means of a removable top frame having a longitudinal angle steel member reinforced by diagonal struts on other angle iron members which form a longitudinal channel welded to the top of the pole. A winch system employs a cable which passes around two pulleys on the top member to support a heavy steel, folding door.

576528

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