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Two Holes Per Column Deposited Pinion Card Reader

IP.com Disclosure Number: IPCOM000090724D
Original Publication Date: 1969-Jun-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Georgallis, GC: AUTHOR [+2]

Abstract

This card reader utilizes depositable pinions and senses two holes per column. The drive rod engages pinions A and N for each column. All pinions are collected at one end of the card and translated along the columns in the direction indicated. As soon as the N pinion encounters a perforation in the card, it is deposited. The spring between the collar and the A pinion causes the latter to move from the intercolumnar space into the column space. It is deposited in the same manner as the N pinion when it encounters a second hole in the column. After the card is read, that is, the deposited pinions in the holes in the card are sensed, the drive rod reverses in direction. The A pinion is picked up first.

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Two Holes Per Column Deposited Pinion Card Reader

This card reader utilizes depositable pinions and senses two holes per column. The drive rod engages pinions A and N for each column. All pinions are collected at one end of the card and translated along the columns in the direction indicated. As soon as the N pinion encounters a perforation in the card, it is deposited. The spring between the collar and the A pinion causes the latter to move from the intercolumnar space into the column space. It is deposited in the same manner as the N pinion when it encounters a second hole in the column. After the card is read, that is, the deposited pinions in the holes in the card are sensed, the drive rod reverses in direction. The A pinion is picked up first. As soon as the N pinion is encountered, it forces the A pinion against the spring via the cam surface on the A pinion and remains between the collar and the A pinion on the rod until it is returned to the starting position where it remains. The starting position is shown in the front elevation drawing where all pinions are captured by the drive rod and all springs are compressed. Full alphanumeric capability is provided since the structure senses two holes per column in a perforated card media.

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