Lifting device employing an equalizer system to reduce weight me

Details Lifting device employing an equalizer system to reduce weight me Lifting device employing an equalizer system to reduce weight me

1997-03-04

1998-07-21

Biegel, Ronald L.

Measuring and testing

Dynamometers

Responsive to force

7386256, G01L 100

Patent

active

057837554

ABSTRACT:
A lifting device that has a carriage supported by a chain which passes over a sprocket-wheel disposed to rotate about an axis and features an equalizer system that reduces variations in the measurement, by a load cell, of a load supported by the carriage. To further enhance the accuracy of the measurement, the load cell is designed to accurately measure the load placed thereon independent of the position of the load on the cell. The equalizer system consists of providing the chain and the sprocket-wheel with the dimensions necessary so that each link of the chain subtends a predetermined portion of the sprocket-wheel's circumference.

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