Typewriting machines – Means auxiliary to typewriting function – Indicator means
Patent
1995-09-08
1997-01-07
Hilten, John S.
Typewriting machines
Means auxiliary to typewriting function
Indicator means
101484, B41F 3302
Patent
active
055909701
ABSTRACT:
Contact-free double-sheet control device for a printing press having a capacitively-operating measuring sensor for determining sheet count, a counter-electrode adjacent thereto, and an evaluation circuit connected to the sensor, includes an eddy-current measuring sensor assigned to the capacitive measuring circuit for compensating for operating influences.
REFERENCES:
ETZ-A Publ. BD. 78, H. 14, Jul. 11, 1957, pp. 495-499, "Wirbelstromdapfung und-bremsung mit dauermangn . . . ".
Greenberg Laurence A.
Heidelberger Druckmaschinen AG
Hilten John S.
Lerner Herbert L.
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