Sheet feeding or delivering – Feeding – With means to interrupt feeding
Patent
1993-02-18
1994-10-18
Skaggs, H. Grant
Sheet feeding or delivering
Feeding
With means to interrupt feeding
3350104, 340674, 250559, B65H 712
Patent
active
053561309
ABSTRACT:
The apparatus described in the present disclosure is fitted above a support (30) on which printed products are transported as a scale-like stream (31). It has two measuring points (M.1 M.2) placed at a distance from each other, which scan the surface of the scale-like stream. In the method described in the present disclosure, this apparatus measures the difference in the level of the surface of the scale-like stream between the two measuring points, records it as a measuring signal, and uses it to detect faults in the scale-like stream. The difference of levels is large when there is an edge of a product between the two measuring points and small when both the measuring points are on the stone product, but the total thickness of the scale-like stream in no case affects the difference of level. Typically, the apparatus described in the present disclosure has two contact wheels (11, 21) that run over the surface of the scale-like stream; the first contact wheel is fitted to a pivot arm (13), the second contact wheel (21) is fitted to a lever (23) which in turn pivots on the arm (13), and a sensor measures the amount of the pivot movement of the lever (23).
REFERENCES:
patent: 3176981 (1965-04-01), Vandeman
patent: 3219829 (1965-11-01), Reist
patent: 3287015 (1966-11-01), Prouss et al.
patent: 3826487 (1974-07-01), Forster et al.
patent: 3948153 (1976-04-01), Dutro et al.
patent: 4498240 (1985-02-01), Van Dijk
patent: 4550282 (1985-10-01), Hartwig et al.
patent: 4560159 (1985-12-01), Staub
patent: 5154279 (1992-10-01), Hansch
Patent Abstracts of Japan, vol. 9, No. 231 (M-414) (1954) Sep. 18, 1985 & JP 60 087 147 (Ricoh K.K.) May 16, 1985.
Patent Abstracts of Japan, vol. 3, No. 151 (M84) Dec. 12, 1979 & JP 54 126 369 (Rikoh K.K.) Jan. 10, 1979.
Xerox Disclosure Journal, Bd. 16, Nr., Jan. 1, 1991, Stamford Conn. US; Seiten 59-60, EP000168277 K. Laffey et al., "Paper Curl detector".
Patent Abstacts of Japan, vol. 12, No. 392 (M-755) (3239) Oct. 19, 1988 & JP 63 143 142 (Minolta Camera Co. Ltd.) Jun. 15, 1988.
Patent Abstracts of Japan, vol. 12, No. 588 (M-912) (3936) Dec. 25, 1989 & JP 12 47 353 (Laurel Bank Mach. Co. Ltd.) Oct. 3, 1989.
Patent Abstracts of Japan, vol. 13, No. 373 (M-861) (3721) Aug. 18, 1989, & JP 11 27 543 (Hitachi Ltd.) May 19, 1989.
Ferag AG
Skaggs H. Grant
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