Browse Prior Art Database

Reversible Page Flipper

IP.com Disclosure Number: IPCOM000091979D
Original Publication Date: 1968-Jul-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Jones, JE: AUTHOR

Abstract

Rotary files provide quick access to contained information and are particularly useful when each file page turns one at a time and detents in a uniform easily readable location. Reversibility for search purposes is essential since it materially reduces searching time. This page flipper meets all the stated requirements. As the drum rotates, the flipper which is attached to the card engages a fixed flip stob. This causes the flipper to rotate either counterclockwise or clockwise depending on the direction of drum rotation. When the flipper and the attached card reach the 90 degrees rotation point, the overcenter spring reverses its action and pulls the flipper and attached card down into reading position.

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Reversible Page Flipper

Rotary files provide quick access to contained information and are particularly useful when each file page turns one at a time and detents in a uniform easily readable location. Reversibility for search purposes is essential since it materially reduces searching time. This page flipper meets all the stated requirements. As the drum rotates, the flipper which is attached to the card engages a fixed flip stob. This causes the flipper to rotate either counterclockwise or clockwise depending on the direction of drum rotation. When the flipper and the attached card reach the 90 degrees rotation point, the overcenter spring reverses its action and pulls the flipper and attached card down into reading position. The flipper detents against the opposite side of the flip stob and retains the card in reading position until further drum rotation displaces the flipper from the detent position. If continuous rotation of the drum in one direction is desired, an additional flipper is required, displaced 180 degrees from the flip stob shown.

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