Accession Number : ADD006975

Title :   Metallurgical Specimen Tester.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Hawke,Merrill P

Report Date : 28 Jan 1980

Pagination or Media Count : 11

Abstract : A plurality of cantilever beams, each fitted with a calibrated strain gage, are arranged to pivot on a corresponding plurality of upstanding pivots located near one end of each beam on a steel plate. A cylindrical specimen threaded at each end is disposed vertically between one end of each beam and the steel plate with a machined nut and socket at each end of the specimen to provide self-alignment. A self-aligning hardened steel stud is threaded into the plate and held in a hole in the other end of each of the beams with a nut and socket. A tension load is applied to the specimen by torquing the nut on the stud, with the mechanical advantage being proportional to the relative distances between the pivot and the specimen and the pivot and the stud. (Author)

Descriptors :   *Patent applications, *Metallurgy, *Test equipment, Sampling, Cantilever beams, Steel, Tension, Metal plates, Loads(Forces), Strain gages, Calibration, Cylindrical bodies, Hardness, Studs(Structural members)

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE