Title:
APPARATUS AND METHOD FOR MEASURING STRESS TRANSMITTED BY ROD, ESPECIALLY, BORING TOOL
Document Type and Number:
Japanese Patent JPS6114391
Kind Code:
A
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.
Inventors:
JIYORUJIYU OBUREHITO
Application Number:
JP13883885A
Publication Date:
January 22, 1986
Filing Date:
June 25, 1985
Export Citation:
Assignee:
ALSTHOM ATLANTIQUE
International Classes:
E21B47/00; F16B21/10; G01L5/00; (IPC1-7): E21B47/00; G01L5/00
Attorney, Agent or Firm:
Yoshio Kawaguchi
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