Testing apparatus for multiple copy form sets

Details Testing apparatus for multiple copy form sets Testing apparatus for multiple copy form sets

1979-04-23

1980-05-20

Swisher, S. Clement

Measuring and testing

Coating material: ink adhesive and/or plastic

73159, G01M 1900, G01N 3300

Patent

active

042033209

ABSTRACT:
Apparatus for testing the fitness of the multiple copy sets for handwritten copies. The form set to be tested is placed on an inclined supporting plate and is clamped to the supporting plate by a slotted hold down plate. A writing instrument, which includes a spring loaded writing implement, is carried by a carriage so that the tip of the writing implement contacts the form set through the slot. The carriage is movable so as to move the tip of the writing instrument along the slot. The writing implement is supported so that the tip contacts the form set substantially without pressure in a starting position. As the carriage is shifted in the direction of increasing ascent of the supporting plate the bearing pressure of the tip of the writing implement increases as a function of the path of travel. The test line produced on the different sheets of the set is a measure of the quality of the copies.

REFERENCES:
patent: 2300107 (1942-10-01), Curado
patent: 2488869 (1949-11-01), Keenan
patent: 4122702 (1978-10-01), Walter

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