Measuring and testing – Dynamometers – Responsive to multiple loads or load components
Patent
1983-10-28
1985-07-02
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to multiple loads or load components
73768, 7386265, G01L 122, G01L 500
Patent
active
045260443
ABSTRACT:
A load sensing probe for disposition in a cavity in a back-up member arranged to support a tool at a working station for measuring the strain associated with such working forces applied to the tool comprises a generally cylindrical body member having first and second generally end adjacent regions of substantially equal outside diameter and a third intermediate region of reduced size. A centrally disposed bore extends through the cylindrical member. A first pair of slots extend axially inwardly into the intermediate region and a second pair of slots extend from the second region into the intermediate region and are disposed at a right angle to first pair of slots. A threaded rod having a frusto-conical surface extends through the centrally disposed bore and includes a threaded fastener. This assembly may be utilized to apply outwardly directed forces to the body of the probe to retain it within the cavity of the tool. Strain gauges are secured on a radially extending surface of one of the end regions and measure the dimensional change of the cavity. Opposed flats on the opposite end of the body member permit rotation of the body member in the cavity during installation.
REFERENCES:
patent: 2898761 (1959-08-01), Hast
patent: 4199978 (1980-04-01), Knorring et al.
patent: 4200855 (1980-04-01), Gilcher
patent: 4342233 (1982-08-01), Edmondson et al.
Moser Robert L.
Wilhelm Donald F.
Helm Instrument Company, Inc.
Ruehl Charles A.
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