Browse Prior Art Database

Program Tape Driving Mechanism

IP.com Disclosure Number: IPCOM000096213D
Original Publication Date: 1963-Feb-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 44K

Publishing Venue

IBM

Related People

Hallbeck, WE: AUTHOR

Abstract

A typewriter, having a single type head which moves along a platen during typing operations, is used in a system which operates under the control of a program tape. This tape is moved past sensing elements as the type head is moved along the platen so that the manner in which the system operates can be varied with changes in position of the type head.

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Program Tape Driving Mechanism

A typewriter, having a single type head which moves along a platen during typing operations, is used in a system which operates under the control of a program tape. This tape is moved past sensing elements as the type head is moved along the platen so that the manner in which the system operates can be varied with changes in position of the type head.

Drive connections between type head 1 and program tape 2 comprise perforated belt 3 connected at its end to the carrier for head 1 so as to form a closed loop. Belt 3 engages sprocket wheel 4 on shaft 5 which extends under tape 2. Mounted on shaft 5 are sprocket wheels which engage holes in tape 2 for feeding the latter when shaft 5 is rotated.

Star wheels, not shown, act on the lower side of tape 5 opposite grooves in cylindrical member 6 at the upper side of tape 5. When a star wheel senses a hole in tape 5, it permits an associated contact element 7 to engage a contact 8 in a control circuit.

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