Friction index tester

Details Friction index tester Friction index tester

1993-04-02

1994-06-14

Raevis, Robert

Measuring and testing

Frictional resistance, coefficient or characteristics

G01N 1902

Patent

active

053199537

ABSTRACT:
An apparatus for measuring the basic friction angle of a surface of given material comprises a housing adapted to be held against a surface of material to be tested, a base which can slide along the inside wall of the housing, a wheel mounted on the lower part of the base and adapted to contact the surface to be tested, a spring for applying a load on the base to force the wheel against the surface to be tested, and a torque gauge for applying a torque to the wheel, and for measuring the maximum torque required to spin the wheel on the surface to be tested at various loads applied to the base.

REFERENCES:
patent: 2690668 (1954-10-01), Lucas
patent: 2955455 (1960-10-01), Frederik
patent: 3187552 (1965-06-01), Davies
patent: 4051713 (1977-10-01), Bao et al.
patent: 4712418 (1987-12-01), Augustin
patent: 4798080 (1989-01-01), Brungraber
patent: 4890477 (1990-01-01), Losev et al.
patent: 4909073 (1990-03-01), Takahashi
Rae, D. in J. Sci. Intrum., 1963, 40, 438-440.
Database WPI, Section EI, Week 9022, Derwent Publications Ltd., London, GB; Class S03, AN 90-170483/22.

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