Measuring and testing – Dynamometers – Responsive to force
Patent
1984-08-27
1987-02-17
Woodiel, Donald O.
Measuring and testing
Dynamometers
Responsive to force
G01L 500
Patent
active
046430318
ABSTRACT:
A method of testing the load lifting ability of a lifting device, including connecting the lifting device to a securement able to resist more force than a weight for which the lifting device is to be tested, and operating the lifting device until the force exerted by the lifting device on the securement equals said weight, wherein the improvement comprises that the securement is the lifting device itself. In a lifting device including a movable frame and lifting means on the frame for lifting loads, the improvement comprising means for enabling the lifting means to pull against the frame.
REFERENCES:
patent: 3722267 (1973-03-01), Gordon
patent: 4039084 (1977-08-01), Shinitsu et al.
patent: 4509377 (1985-04-01), Mentzell et al.
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