Measuring and testing – Dynamometers – For testing relative pulling power
Patent
1986-11-21
1987-10-06
Ruehl, Charles A.
Measuring and testing
Dynamometers
For testing relative pulling power
738659, 114125, G01L 300, G01M 1900
Patent
active
046974580
ABSTRACT:
The crane load-test gauge of the instant invention includes an elongate vessel having multiple fluid containing compartments therein. Each compartment has an open top side. A fluid carrying manifold is disposed along the length of the vessel and has a valve mechanism associated with each of the compartments for introducing fluid into the compartment. The manifold has a conventional fire hose connector on the free end thereof. A level adjusting mechanism is provided for adjusting the level of fluid in a compartment. The level adjusting mechanism includes a trim valve for partially emptying a single compartment and a sluice valve for transferring fluid between compartments. A sight gauge is affixed to a side of each compartment in communication with the interior thereof. The sight gauge is operable to indicate a fluid level in its associated compartment. A weight indicator includes calibrated markings adjacent each of the sight gauges to provide, with the fluid level at a predetermined point, the weight of the compartment and the fluid contained therein. An overflow mechanism is provided to prevent filling of the vessel beyond a predetermined level. A drain is provided for emptying completely the fluid contained in the vessel. The gauge includes a lifting mechanism for attaching the gauge to a crane to be tested.
REFERENCES:
patent: 210864 (1878-12-01), Laubscher
patent: 3083673 (1963-04-01), Ripley
patent: 3270702 (1966-09-01), Field
patent: 4207828 (1980-06-01), Horowitz et al.
patent: 4223554 (1980-09-01), Ulbing
patent: 4529064 (1985-07-01), D'Andrea, Jr.
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