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Fluid Controlled Paper Tape Indexes

IP.com Disclosure Number: IPCOM000094139D
Original Publication Date: 1966-Jun-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 42K

Publishing Venue

IBM

Related People

Titcomb, SC: AUTHOR

Abstract

Data tape indexing is achieved by repeatedly deflecting a tape section between a cavity and relatively flat surface and holding alternate ends during deflection.

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Fluid Controlled Paper Tape Indexes

Data tape indexing is achieved by repeatedly deflecting a tape section between a cavity and relatively flat surface and holding alternate ends during deflection.

Block 1 is provided with guide slots 2 along which data tape 3 can move. Block 1 is formed with concavity 4 and shallow recess 5, each having a respective, preformed, expansible diaphragm 6 and 7 sealing the opening adjacent data tape 3. Duct 8 leading to concavity 4 and duct 9 leading to recess 5 are each connected to a valved source of pressurized fluid. The upper portion of the block also has chambers 10 in which pins 11 and 12 reciprocate. Springs 13 urge each pin downward into engagement with a hole in the longitudinal row of drive holes in tape 3. Pressurized fluid is supplied through either of ducts 14 to raise and disengage a pin from tape 3.

A cycle of operation is initiated by simultaneously terminating fluid pressure to insert pin 12 and applying fluid pressure to disengage pin 11. Recess 5 is then pressurized to expand diaphragm 7 and pull tape 3 in from the left to assume the contour of concavity 4.

The motion of pins 11 and 12 is reversed and tape 3 can be punched or sensed at station 15. During reading or punching, pressure at recess 5 is terminated and applied at concavity 4 to force tape 3 out to the right.

Reverse movement of tape 3 results by altering the sequence of applied pressure to pins, concavity and recess. Pressure-actuated pistons of contour...