Monitor for continuous feeding of collated articles

Details Monitor for continuous feeding of collated articles Monitor for continuous feeding of collated articles

1991-08-26

1994-10-25

Harvey, Jack B.

Boots, shoes, and leggings

364469, 364471, 364478, 364563, G01B 502, G01B 702, G01B 2102, G06F 1546

Patent

active

053595440

ABSTRACT:
The apparatus for monitoring continuous feeding of articles which belong to different classes having different ranges of a characteristic value, and which are provisionally collated according to a given order of the classes in cyclic manner. A detector is provided to sequentially detect articles during the course of the continuous feeding so as to sample a characteristic value D.sub.mn of each article, where m denotes a cycle number and n denotes an order of the article in an m-th cycle. A memory is provided to store a given n-th reference characteristic value D(n) and a corresponding allowance value .DELTA.D.sub.n, which are specific to an n-th order of the class. An n-th test reference range is set in the form of D(n).+-..DELTA.D.sub.n. Judgement is carried out in the m-th cycle such as to test whether the sampled characteristic value D.sub.mn falls within the n-th test reference range D(n).+-..DELTA.D.sub.n to thereby monitor occurrence of misfeeding.

REFERENCES:
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patent: 4504916 (1985-03-01), Oka
patent: 4545031 (1985-10-01), Kobayashi
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patent: 4953841 (1990-09-01), Polarek
patent: 4996658 (1991-02-01), Baker
patent: 5245547 (1993-09-01), Ramsey

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