Sharp edge tester

Details Sharp edge tester Sharp edge tester

1974-10-24

1976-01-13

Ruehl, Charles A.

Measuring and testing

Surface and cutting edge testing

73 78, G01N 1900

Patent

active

039317323

ABSTRACT:
A hand held tool for testing the sharpness of edges to determine the presence or absence of a safety hazard in which a rotatable mandrel is driven by a torque spring at a specified velocity for a single rotation, the mandrel carrying a covering of testing material which is engaged with an edge to be tested, and having means for automatically driving the mandrel in the presence of predetermined contact force or pressure between the test material and the test edge. Means are also included for adjustably regulating the mandrel speed of rotation and the contacting pressure requisite to effect its testing operation.

REFERENCES:
patent: 2335235 (1943-11-01), Clifton
patent: 2472994 (1949-06-01), Vars
patent: 2620654 (1952-12-01), Campbell
patent: 3289458 (1966-12-01), Deichert et al.

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