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Measuring and testing – By abrasion – milling – rubbing – or scuffing

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G01N 356

Patent

active

055570399

ABSTRACT:
Devices and processes are disclosed for controlling and measuring precisely the many variables associated with fiber wear and transfer among materials. Specifically, one embodiment of the invention involves a slide and track arrangement for translating rotary motion of a crank shaft into reciprocal or, if desired, orbital motion of a second pad holding a sample or abrasive material against a first pad holding a sample material. The translation apparatus is such that even when orbital motion is selected, a constant angular relationship between the pattern of the materials held on the first pad and second pad is maintained. Devices are provided for controlling the speed of the motor; measuring the cyclical motion of the second pad; measuring and displaying the amount of load the second pad applies to the first pad and adjusting that load; changing and measuring the tension applied to the sample and/or abrasive materials and changing the angular orientation of the material on the first pad with respect to the material on the second pad. Thus, numerous variables that affect material wear are controlled or closely monitored, thereby allowing better understanding of the complexities of material wear.

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