Measuring and testing – Specimen stress or strain – or testing by stress or strain... – Indicating coating or sheet providing direct visual indication
Patent
1986-02-24
1987-08-11
Frankfort, Charles
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
Indicating coating or sheet providing direct visual indication
116DIG34, G01B 1120, G01B 2132
Patent
active
046853375
ABSTRACT:
A device for gauging hoop stress in a female threaded connector member, the stress being caused by tightening of a tapered male threaded member into the female member, including an annular body dimensioned for surrounding the female member with a firm fit therebetween, the body including two discrete complementary half-sections. Each of the half-sections includes an overlapping segment on one end, and each segment has an aperture therein. A pin is provided for insertion through the aligned apertures. An anchor block is fixed to each of the otherwise free ends of the annular body, each of the blocks having a cutout portion therein. A weak link having a tensile strength less than that of the annular body is provided for insertion into the cutout portions for joining the blocks. The weak link clamps the body about the female member and breaks under the application of a predetermined hoop stress to the female member.
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Frankfort Charles
Worth W. Morris
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