Index card register with selector device

Details Index card register with selector device Index card register with selector device

1977-01-18

1978-07-11

Knowles, Allen N.

Classifying, separating, and assorting solids

Adhesion

With selective differentiation

B07C 500

Patent

active

041000609

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: 1188783 (1916-06-01), Honecker
patent: 1876149 (1932-09-01), Oakley
patent: 2640485 (1953-06-01), Zalkind
patent: 3664500 (1972-05-01), Krebs

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