Browse Prior Art Database

Stacker Selection System

IP.com Disclosure Number: IPCOM000093281D
Original Publication Date: 1967-Aug-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 54K

Publishing Venue

IBM

Related People

Books, AK: AUTHOR [+2]

Abstract

Record cards 10 are fed from hopper 11 in seriatim by picker knife 12. Each card 10, advanced from 11, is transported by a series of pairs of cooperating feed rollers 13 relative to optical read station 15. Cards 10 bear coded data in the form of punched holes. Data pulses developed in response to sensing these holes at 15 are entered into bit register 20 under control of read emitter 21. The latter generates data gating pulses in time with movement of cards 10. Gating pulses from 21 are applied to And 22 which also has an input from 15. Register 20 is reset after one card is sensed and the leading edge of the next succeeding card is detected at 15. This occurs when the input conditions to And 24 are satisfied. It is assumed that 21 generates a pulse after a card is read.

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Stacker Selection System

Record cards 10 are fed from hopper 11 in seriatim by picker knife 12. Each card 10, advanced from 11, is transported by a series of pairs of cooperating feed rollers 13 relative to optical read station 15. Cards 10 bear coded data in the form of punched holes. Data pulses developed in response to sensing these holes at 15 are entered into bit register 20 under control of read emitter 21.

The latter generates data gating pulses in time with movement of cards 10. Gating pulses from 21 are applied to And 22 which also has an input from 15. Register 20 is reset after one card is sensed and the leading edge of the next succeeding card is detected at 15. This occurs when the input conditions to And 24 are satisfied. It is assumed that 21 generates a pulse after a card is read. The leading edge of the next succeeding card is detected by 15. The output from 15 is applied to inverter 23 and its output is connected to 24.

Data read from card 10 determines which of the six stackers
1...6 is to receive the card. As card 10 moves past the read station, data in 20 is translated by translator 25 to binary data which is then entered into stacker select buffer 26 under control of And's 27. The latter are gated by a C pulse from stacker emitter 28.

This operates in synchronism with movement of cards 10. If card 10 is destined for stacker 1, the data in 26 satisfies And 29 and magnet driver 30 energizes magnet 31. With magnet 31 energized, selector 32 is p...