Sheet-material associating – Associating or disassociating – Signature associating
Patent
1989-04-11
1990-05-15
Garrett, Robert E.
Sheet-material associating
Associating or disassociating
Signature associating
270 56, 270 58, 250561, B65H 3902
Patent
active
049251740
ABSTRACT:
The present provides a new and improved apparatus for verifying the operation of a signature hopper of a collator. The hopper includes a rotary drum for transporting a signature from a storage bin to a feed location on a raceway having a moving conveyor. Two reflectors are secured to the drum. A first, miss reflector, is located so as to be covered by a signature during a normal feed operation. A second, miss verify reflector, is located so as not to be covered by a signature during a normal feed operation. An optical sensor directs a beam of light toward the drum and monitors for light reflected by the reflectors. A controller determines when the sensor should receive a reflected beam from the miss verify reflector. A warning signal is generated if no light is reflected from the miss verify reflector when it is expected.
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Bruce Andrew D.
Tucker Daniel A.
AM International Incorporated
Garrett Robert E.
Newholm Therese M.
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