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Browse Prior Art Database

Eject Station for Strip Selection

IP.com Disclosure Number: IPCOM000091447D
Original Publication Date: 1968-Feb-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 43K

Publishing Venue

IBM

Related People

Barbeau, RA: AUTHOR

Abstract

The device controls a movement reversal for a flexible strip ejected from a read-write station. A strip is selected from pack 2 by apparatus described on page 1346. The selected strip is impelled upward toward vacuum drum 3 that is rotating at high speed. The strip is wrapped on drum 3 by either vacuum or blowing air, on which drum it passes read-write station 4. Eventually strip 2a is released from drum 3. The high-eject speed can cause strip damage if stopped by a simple bumper not shown. This system uses vacuum braking surface 5 to distribute a stopping force over a wide area of strip 2a thus preventing strip damage.

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Eject Station for Strip Selection

The device controls a movement reversal for a flexible strip ejected from a read-write station. A strip is selected from pack 2 by apparatus described on page 1346. The selected strip is impelled upward toward vacuum drum 3 that is rotating at high speed. The strip is wrapped on drum 3 by either vacuum or blowing air, on which drum it passes read-write station 4. Eventually strip 2a is released from drum 3. The high-eject speed can cause strip damage if stopped by a simple bumper not shown. This system uses vacuum braking surface 5 to distribute a stopping force over a wide area of strip 2a thus preventing strip damage.

Another feature of this system is its ability to retain the strip at brake surface 5 until such time as the reading station receives the next selected strip. Such feature allows for ejection of the strip at the read-write station with an immediate selection of a new strip before return of the prior strip, thus saving system time. When the new strip is being received by drum 3, strip 2a can be released to fall to the left side of pack 2.

A light beam of photocell sensing station 6a and 6b is interrupted by strip 2a to actuate a circuit not shown. The latter controls the proper time to energize moving coil valve A, causing vacuum to be applied to perforated frictional surface 5 for stopping the strip. The deenergizing of valve A and the energizing of valve B by a circuit, not shown, causes blowing air to be exerted...