Accession Number : ADD010105

Title :   Thermal Measuring Apparatus for Elastomers.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Griffin,Warren R

Report Date : 11 Jan 1983

Pagination or Media Count : 12

Abstract : An apparatus for measuring the tear strength of an elastomer specimen having a housing which contains therein a specimen holder, a controllable heat source, a force applying assembly which includes a taut wire, means for measuring the amount of movement of the force applying assembly and a temperature programmer and strip chart recorder. The force applying assembly by means of the taut wire applies a predetermined amount of force on the elastomer specimen which has been precut on one side thereof. The load on the taut wire is counterbalanced by a calibrated spring such that the load decreases linearly to zero as the tearing of the specimen is completed. (Author)

Descriptors :   *Patents, *Elastomers, *Thermal properties, *Measuring instruments, Inventions, Tearing, Strength(Mechanics), Heating, Loads(Forces), Recording systems, Charts, Computer programming, Calibration, Glass, Rubber, Modulus of elasticity

Subject Categories : Plastics
      Test Facilities, Equipment and Methods
      Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE