Load measuring apparatus

Details Load measuring apparatus Load measuring apparatus

1990-06-12

1992-05-19

Ruehl, Charles A.

Measuring and testing

Dynamometers

Responsive to force

92 5R, G01L 500, F01B 3112

Patent

active

051137100

ABSTRACT:
A load measuring device for an oleopneumatic load intensifier apparatus which causes a rapid advance of a tool carrying piston rod followed by slow advance of the piston rod at an increased load. the oleopneumatic apparatus has a master cylinder and an actuating cylinder that can assume different positions with respect to the master cylinder while maintaining fluid communication therewith. An enclosed hydraulic system is shared by the master and actuating cylinders. Pneumatic pressure actuates a piston within the master cylinder that causes a rapid advancement of a hydraulic fed piston withihn the actuating cylinder, causing a piston rod and a tool associated therewith to contact a workpiece. The load measuring device monitors the load associated with the pneumatic pressure applied to the piston and associated piston rod, located in the master cylinder and the resultant force applied to the hydraulic fed piston located within the actuating cylinder to precisely determine the load delivered to the workpiece.

REFERENCES:
patent: 3086132 (1963-04-01), Ostrow
patent: 4058178 (1977-11-01), Shinohara et al.
patent: 4777831 (1988-10-01), Masuda

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