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Random Selection of Microforms

IP.com Disclosure Number: IPCOM000091010D
Original Publication Date: 1969-Sep-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Manning, SA: AUTHOR [+2]

Abstract

The arrangement selectively retrieves microfiche cards from a plurality of cards by utilizing coded notches in the edges of clips attached to the cards. Cards 1a...1m are arranged in a rack or the like, not shown, to form a file of cards. The top edge of each card has fixed to it a ferrous clip such as clip 2a on card la. Each clip contains a unique arrangement of coded notches. Selected ones of a plurality of slideable code bars 4a...4n are moved forward adjacent the notched edges in accordance with the coded notches on the card requested to be retrieved. Thus, to retrieve card la, code bars 4a, 4b, etc., corresponding to notches 6a, 6b, etc., are moved forward. When magnet 5 is energized, only card 1a is free to lift to a point where it can be accepted by latches 3.

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Random Selection of Microforms

The arrangement selectively retrieves microfiche cards from a plurality of cards by utilizing coded notches in the edges of clips attached to the cards. Cards 1a...1m are arranged in a rack or the like, not shown, to form a file of cards. The top edge of each card has fixed to it a ferrous clip such as clip 2a on card la. Each clip contains a unique arrangement of coded notches. Selected ones of a plurality of slideable code bars 4a...4n are moved forward adjacent the notched edges in accordance with the coded notches on the card requested to be retrieved. Thus, to retrieve card la, code bars 4a, 4b, etc., corresponding to notches 6a, 6b, etc., are moved forward. When magnet 5 is energized, only card 1a is free to lift to a point where it can be accepted by latches 3. The remaining cards, not having the same combination of notches, are prevented by the bars from movement to a latch position. Code bars 4a, 4b, etc., are then withdrawn and latches 3 and magnet 5, fixed to a common support, are raised to move the retrieved card 1a into position for reading its data.

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