System for testing firmness of a paper roll

Details System for testing firmness of a paper roll System for testing firmness of a paper roll

1994-05-18

1995-04-04

Raevis, Robert

Measuring and testing

Hardness

By penetrator or indentor

73 1J, G01N 348

Patent

active

054026733

ABSTRACT:
An apparatus and method for measuring the firmness of a paper roll product. The roll product is mounted on a spindle and a plunger is lowered into engagement with the outer peripheral surface of the roll product. A motion detector detects the distance the plunger moves into the roll product under the weight of the plunger and data based on this distance is displayed for viewing by the operator. Calibrating gauges are employed prior to measurement to ensure that a zero reading on the display corresponds to the point at which the plunger initially contacts the roll product outer surface.

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Digimatic Heightgage, User's Manuaal; Mitutoyo Corporation.

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