Boom extension for gantry cranes

Details Boom extension for gantry cranes Boom extension for gantry cranes

B - Operations, Transporting

66

C

B66C 13/00 (2006.01) B66C 19/00 (2006.01) B66C 23/66 (2006.01)

Patent

CA 2101966

ABSTRACT An apparatus and method for providing a boom extension for retractable booms of gantry cranes which does not require lowering the boom during attachment of the extension, or increasing the lift capacity of the boom hoist machinery, nor does the boom extension add bending moment to the retractable boom.

Cette invention concerne un appareil et une méthode pour l'ajout d'une flèche-rallonge aux flèches télescopiques de grues à portique sans avoir à abaisser lesdites flèches télescopiques ou à accroître la capacité de levage du treuil de relevage de flèche, et sans ajouter au moment de flexion de la flèche rétractable.

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