Index-selector devices

Details Index-selector devices Index-selector devices

1978-03-15

1980-05-27

Mancene, Louis G.

Card, picture, or sign exhibiting

Register, or file

Hinge mounted file item or file item support

B42F 1720

Patent

active

042043522

ABSTRACT:
In an index selector device of the kind for use with a stack of index cards housed between a base and a lid hinged together and having a selector on the lid to release the lid after moving card-engaging members into engagement with a card so as to raise all the cards in the stack above the one required, the selector is a plurality of push buttons, one to each card-engaging member, arranged in two rows at right angles to the hinge. Interengaging inclined surfaces on each push button and card-engaging member cause lateral sliding movement of the card-engaging member on depression of the push button. A hook on the card-engaging member moves under the edge of the card above the one required and co-operating inclined surfaces on the inner end of the card-engaging device and a central catch bar cause the catch bar to release the lid. A barb on the card-engaging member hooks into a recess on the catch bar to hold the card-engaging member in the card-engaging position while the lid is open. A tongue on the catch bar which yields when the lid opens strikes an abutment as the lid closes and pushes the catch bar back to disengage the barb from the recess and release the card-engaging member to its normal position.

REFERENCES:
patent: 2513422 (1950-07-01), Neilsen
patent: 2717605 (1955-09-01), Lang
patent: 2822633 (1958-02-01), Munson
patent: 3073049 (1963-01-01), Levesque
patent: 3835560 (1974-09-01), Mori

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