Browse Prior Art Database

A Portable Data Entry Device

IP.com Disclosure Number: IPCOM000096348D
Original Publication Date: 1963-Apr-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Fitch, CJ: AUTHOR

Abstract

This portable data entry device produces digital data representing audio signals for telephone transmission to a data processing center.

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A Portable Data Entry Device

This portable data entry device produces digital data representing audio signals for telephone transmission to a data processing center.

The device uses a telephone-type dial 10. There are locations for the digits 0 through 9 plus an error symbol and an end of message symbol. Turning dial 10 in a clockwise direction towards finger stop 11, winds spring 12 and inflates bellows 13 by means of pulley 14 and belt 15 connected to bellows 13. The speed at which the dial 10 is permitted to return to its home position is controlled by the tension of spring 12 and by the air-flow rate from bellows 13 as it collapses. Air from bellows 13 passes through conduit 16 and two-way valve 17. The latter is controlled by a coded disc 18. This has two rows of perforations and is attached to shaft 19.

Disc 18 serves to control the passage of air through two-way valve 17 and into the flexible tubes 20 and 21 to activate the sounding of whistles 22 and 23 in a coded manner. Whistles 22 and 23 are acoustically coupled to the telephone microphone 24 to enable the transmission of the coded data representing signals.

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