Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Separating means
Patent
1978-07-10
1979-11-27
Rolla, Joseph J.
Classifying, separating, and assorting solids
Sorting special items, and certain methods and apparatus for...
Separating means
209612, B07C 900
Patent
active
041756630
ABSTRACT:
A compact index card register of relatively small dimensions, consisting of a housing with a keyboard of several selector keys arranged in an array of rows and columns, and within the housing a drawer adapted to be moved outwardly from the housing and to accommodate a stack of index cards. Parts associated with each selector key and the housing serve to retain a predetermined number of index cards within the housing and to release the drawer for outward movement whereby all but the predetermined number of index cards are moved outwardly together with the drawer, in exposing to sight an index card corresponding to the actuated selector key. Every index card includes a selector tongue with a predetermined number of selector apertures.
REFERENCES:
patent: 1821459 (1931-09-01), Casey
Firma Niveau AG
Rolla Joseph J.
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