Testing apparatus for multiple copy form sets

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

G - Physics

01

M

73/0.5

G01M 99/00 (2011.01) B41M 5/10 (2006.01) G01N 33/00 (2006.01)

Patent

CA 1114636

-11- TESTING APPARATUS FOR MULTIPLE COPY FORM SETS ABSTRACT Apparatus for testing the fitness of the multi- ple 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 car- riage 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 implement 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.

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