Bascule bridge activated by a cable system

Bridges – Draw – Bascule

Patent

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Details

E01D 1506

Patent

active

047517581

ABSTRACT:
The leaf bascule bridge activated by a cable system, represents a movable structure which is adapted to opened so as to permit the passage of boats or vessels through the bridge. To achieve this purpose, the bascule bridge is provided with a fixed axis on trunnions attached to the bascule bridge structure, with a cable system for driving the bascule bridge, utilizing a counterweight to counterbalance the weight of the bascule bridge structure and a safety cable to guard against the unexpected uplift of the bascule bridge due wind force. The bascule bridge is activated by a cable system using a pulling force applied to the end of the counterweight for driving the bascule bridge.

REFERENCES:
patent: 657122 (1900-09-01), La Pointe
patent: 1731697 (1929-10-01), Allen et al.
patent: 3308496 (1967-03-01), Mooney et al.

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