Method and apparatus for measuring the cut resistance of flexibl

Details Method and apparatus for measuring the cut resistance of flexibl Method and apparatus for measuring the cut resistance of flexibl

1988-07-25

1989-09-12

Cuchlinski, Jr., William A.

Measuring and testing

Sheet, woven fabric or fiber

73 7, 73 81, 73839, 734321, G01N 356

Patent

active

048648523

ABSTRACT:
Method and apparatus for measuring the cut resistance of flexible materials, such as films, fabrics, felts and papers. A flexible material is wrapped around a mandrel that is rotated at a predetermined speed. A cam attached to the rotating mandrel allows a cutting edge, such as a razor blade, to repeatedly fall on the material covering the mandrel. The cutting edge repeatedly contacts the material, in the same location and with the same predetermined force, until the cutting edge penetrates the material and makes electrical contact with the mandrel. When edge-to-mandrel contact is made, the rotation of the mandrel is automatically stopped. The number of rotations (i.e. cutting cycles) required to penetrate the material is noted and used as a measure of the relative cut resistance of the material.

REFERENCES:
patent: 2687641 (1954-08-01), Stout
patent: 3026726 (1962-03-01), Reading
patent: 3641807 (1972-02-01), Brooks
patent: 3971245 (1976-07-01), Crafford et al.

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