Semi-dump trailer level indicator

Details Semi-dump trailer level indicator Semi-dump trailer level indicator

B - Operations, Transporting

60

Q

340/71, 340/137.

B60Q 5/00 (2006.01) G08B 21/00 (2006.01)

Patent

CA 1074417

Abstract A semi-dump level indicator comprising an electrical system including a pair of mercury switches mounted on the rear portion of the trailer. The switches are closed when the trailer is level. When the trailer is dangerously tilted gravity causes one of the switches to open which de-energizes a relay closing a warning light and alarm buzzer circuit in parallel with the circuit having the mercury switches to warn the operator not to raise the trailer.

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