Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Condition responsive means controls separating means
Patent
1994-11-30
1997-04-22
Terrell, William E.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Condition responsive means controls separating means
209587, 209900, 270 5226, 100 99, 27126504, 356381, B07C 512, B65H 702, B65H 3900
Patent
active
056222688
ABSTRACT:
An apparatus (10) comprises a movable member (60) having an outer circumferential surface which engages a collated assemblage (20) on a collating conveyor (14) to compress the collated assemblage when the member is moved towards the collated assemblage. A light source (36) directs light (37) toward the outer circumferential surface of the member. The outer circumferential surface includes a light reflective surface (83) portion against which the light is directed and then reflected. The reflected light (38) has a characteristic which varies as a function of the thickness of the collated assemblage. The reflected light is sensed and a first electrical signal (42) is provided which varies as a function of the characteristic of the reflected light and thus as a function of the thickness of the collated assemblage. An electrical circuit (90) detects a value of the first electrical signal corresponding to a maximum compressed condition of the collated assemblage, holds the value for at least a predetermined time period, and provides a second electrical signal (96, 97) indicative of whether the value of the first electrical signal is within a predetermined value range.
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Conner Charles J.
Johnson David U.
Loughman Douglas P.
Heidelberg Finishing Systems Inc.
Nguyen Tuan
Terrell William E.
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