Breakaway bail

Details Breakaway bail Breakaway bail

1983-06-29

1986-03-11

Blix, Trygve M.

Traversing hoists

With haul-in line

212192, 212239, 212262, 403 2, B66C 1500

Patent

active

045749647

ABSTRACT:
A breakaway bail for a pedestal mount crane pivotally attached to the gantry by a pin extending through bushings secured to a pair of parallel plates with a spacer between the plates aligned with the bushings. A beam having an upright flange is secured between the plates and a multiple sheave pulley is attached to beam by brackets. Each of the plates has a necked down section between the flange and the spacer to create a high stress area, which area will separate under overload conditions without affecting the connection of the crane to its pedestal.

REFERENCES:
patent: 1614575 (1927-01-01), Siebs
patent: 2051388 (1936-08-01), Nickles
patent: 3008176 (1961-11-01), Paine et al.
patent: 4071970 (1978-02-01), Strizki
patent: 4109798 (1978-08-01), Comyns-Carr
patent: 4273244 (1981-06-01), Jensen et al.
patent: 4353146 (1982-10-01), Brockhaus
patent: 4437427 (1984-03-01), Mampaeij

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