G - Physics – 01 – M
Patent
G - Physics
01
M
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G01M 99/00 (2011.01) G01N 3/20 (2006.01)
Patent
CA 1047789
METHOD & GUAGE FOR NONDESTRUCTIVELY TESTING AND CERTIFYING THE WORKABLE QUALITIES OF A CASTING ABSTRACT OF THE DISCLOSURE: The invention is directed to a method and guage for nondestrictively testing and certifying the workable qualities of a casting. The guage comprises a tab cast at the same time as the remaining portion of the casting located in a nonfunctional location, when considered in the light of the later use to be made of the casting, and also in such a position that it can be bent as by striking with a percussive instrument or by the application of a continuous bending force without damage to the remaining portion of the casting. The tab or guage will be subjected to a strain greater than the maximum strain to which the remaining por- tion of the casting will be subjected, during its installa- tion or use, and determining by visual inspection whether or not the tab, at its bend has cracked, the overall ductility of the casting can be judged and it can be projected, that the casting will be able to withstand the forces to which it will be subjected when employed in a desired manner. The tab will take on a generally rectangular configuration of prescribed minimum height, width, and thickness, such that it may be correctly subjected to strain forces in excess of the strain forces to be applied to the casting during its normal use or installation.
229915
Luongo Albert M.
Reynolds Frank J.
Ruetsch Rudolph R.
Na
Thomas And Betts Corporation
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