Title: System for testing paper money and the like

Abstract: To test the genuineness and/or condition of dollar bills or other substantially identical papers, one or more thickness gauges are positioned in the path of these papers and determine the deviations, if any, of the thickness of a passing specimen from a predetermined value or from the thickness of a reference specimen scanned concurrently therewith. The measured deviations are fed into a processor which counts positive or negative deviations within a multiplicity of incremental periods and determines the nature of any irregularity from the count of deviations of either sign. With three gauges measuring thickness along as many parallel tracks, the system may discriminate among such irregularities as gaps, overlappings, adhesive tape and dog-eared corners.

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Inventors: Gartner, Fritz (Vienna, OE)
Berger, Erich (Vienna, OE)

Application Number: 470965
Filing Date: 1974-05-17
Publication_date: 1976-01-06
Assignee: Oesterreichische National Bank (Vienna, OE)
Primary Class(es): 209/534 209/601, 377/8, 377/30
Other Classes:
US Patent Ref:

3417476	Dec, 1968	Martens	209/88.
3581402	Jun, 1971	London et al.	33/174.
3590992	Jul, 1971	Soderstrom	209/88.
3759095	Sep, 1973	Shor, Jr.	73/159.
3778051	Dec, 1973	Allen	235/92.
3842668	Oct, 1974	Lippke	73/159.

Other Refs:
Primary Examiner: Knowles, Allen N.
Assistant Examiner:
Attorney: Ross; Karl F., Dubno; Herbert