Crane load instrument and method therefor

Details Crane load instrument and method therefor Crane load instrument and method therefor

1992-08-28

1993-11-23

Mitchell, David M.

Traversing hoists

With haul-in line

B66C 1316

Patent

active

052635970

ABSTRACT:
A crane load detection system is provided having an electronic strain gage located in series with the deadline of the boom and located adjacent the gantry tie-down of the deadline of the boom. A pendulum potentiometer and transmitter are provided on the boom adjacent its pivot point. A microprocessor is employed to solve several triangles using trigonometric functions to calculate the radius of rotation, the actual weight of the load and the percent of the load as compared to the maximum load for which the crane is designed.

REFERENCES:
patent: 3641551 (1972-02-01), Sterner et al.
patent: 4212006 (1980-07-01), Cakebread et al.
patent: 4395706 (1983-07-01), Garber
patent: 4752012 (1988-06-01), Juergens

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