Accession Number : ADD008766

Title :   Metallurgical Specimen Tester.

Descriptive Note : Patent,


Personal Author(s) : Hawke,Merrill P ; Elizalde,Pete , Jr ; Harris,Robert L

Report Date : 21 Jul 1981

Pagination or Media Count : 4

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 of 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 porportional to the relative distances between the pivot and the specimen and the pivot and the stud. (Author)

Descriptors :   *Patents, *Metallurgy, *Test equipment, Cantilever beams, Calibration, Strain gages, Metal plates, Steel, Loads(Forces), Tension

Subject Categories : Metallurgy and Metallography
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE