Communications: electrical – Continuously variable indicating – With meter reading
Patent
1982-09-13
1986-08-12
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
340674, 271263, H04Q 900, B65H 712, G08B 2100
Patent
active
046059261
ABSTRACT:
An illegal-sheet-material detecting apparatus, which is adapted to detect whether the property of each of the passing sheet materials is legal or not in a sheet manufacturing machine, provided with a comparison circuit for detecting the lag of the same detection value of the n th+ first sheet material with respect to the detection value showing the property such as thickness, size or the like of the optional portion of the n th sheet material memorized in the memory circuit as an electric signal. When the lag detected by the comparison circuit has exceeded a predetermined range, the counting operation of the sheet material is caused to stop thereby to use the detection value of the n th sheet material as a reference value for comparing it with the n th+ first sheet detection value.
REFERENCES:
patent: 4112379 (1978-09-01), Schmidt
patent: 4160546 (1979-07-01), McMillan et al.
patent: 4243216 (1981-01-01), Mazumder
patent: 4275879 (1981-06-01), Yamashita et al.
patent: 4428041 (1984-01-01), Honkawa
patent: 4462587 (1984-07-01), Graef et al.
Onishi Tetsuo
Sugiyama Yoshihide
Duplo Manufacturing Corp.
Duplo Seiko Corp.
Yusko Donald J.
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