Sheet-material associating – Associating or disassociating – Sheet associating
Patent
1978-11-03
1980-02-19
Stoner, Jr., Bruce H.
Sheet-material associating
Associating or disassociating
Sheet associating
226 1, 226200, 235 92PE, 271215, 414100, 414901, B65H 45101, B65H 3110
Patent
active
041891333
ABSTRACT:
A document stacking table is lowered in steps under electronic control as the documents accumulate. A predetermined number of documents are stacked, after which the table is lowered by a predetermined amount. An optical sensing arrangement is used to determine the effective top of the stack of documents within the limits of "light sensed" and the "absence of light". If light is sensed, the count is increased and the table lowered again; in the absence of light the count is decreased and the table is again lowered. Thus the stacking table will be lowered by a fixed amount to the level of least error.
REFERENCES:
patent: 2861805 (1958-11-01), Auer
patent: 3640407 (1972-02-01), Anastasio et al.
patent: 3807724 (1974-04-01), Bartz
patent: 3937456 (1976-02-01), Gruodis
patent: 3956616 (1976-05-01), Knollenberg
patent: 4033579 (1977-07-01), Stange et al.
patent: 4065123 (1977-12-01), Arrasmith et al.
Arrasmith Fred V.
Bruns Donald G.
Killam David G.
International Business Machines - Corporation
Roush George E.
Stoner Jr. Bruce H.
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