Device for measuring stresses transmitted by a shaft, in particu

Details Device for measuring stresses transmitted by a shaft, in particu Device for measuring stresses transmitted by a shaft, in particu

1985-06-27

1986-07-01

Levy, Stewart J.

Measuring and testing

Borehole or drilling

Downhole test

7386219, 175 40, E21B 4700

Patent

active

045972893

ABSTRACT:
The device for measuring stresses applied to a drilling tool comprises a removable instrument socket (2) secured by means of protuberances (15, 16) thereon to the wall of a compartment formed thereby in a shaft (OM) such as to make fast said socket and said shaft in two transverse planes (12, 13) and as to transmit to said socket the strains occurring in the shaft in response to the stresses to be measured. Strain gauges (9) are fitted to the socket to measure said strains, and accordingly said stresses.

REFERENCES:
patent: 3672213 (1972-06-01), Watson
patent: 3686942 (1972-08-01), Chatard et al.
patent: 3827294 (1974-09-01), Anderson
patent: 3864968 (1975-02-01), Anderson
patent: 3968473 (1976-07-01), Patton et al.
patent: 4294318 (1981-10-01), Desbrandes et al.
patent: 4359898 (1982-11-01), Tanguy et al.
patent: 4527335 (1985-07-01), Meline

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