Browse Prior Art Database

Vacuum Foot Separator

IP.com Disclosure Number: IPCOM000095801D
Original Publication Date: 1964-Jul-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 76K

Publishing Venue

IBM

Related People

Barna, T: AUTHOR

Abstract

The top document of a stack of documents 10 is picked up by vertically reciprocating separator foot 15 and then transferred to a work station, not shown.

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Vacuum Foot Separator

The top document of a stack of documents 10 is picked up by vertically reciprocating separator foot 15 and then transferred to a work station, not shown.

Foot 15 has its angular cavity connected to a vacuum source P1V through ports 20 in stationary center member 25. Coil spring 30 biases foot 15 downwardly. Inner concentric cylinder 16 embraces a reduced section of stationary member 25 and is provided with a series of arcuately spaced ports 17. Ports 17 provide a passage between a chamber formed between stationary member 25 and the wall of foot 15 and mouth 18.

When foot 15 is biased by spring 30 to contact the uppermost document, ports 17 provide a passageway between mouth 18 and vacuum source P1V via stationary ports 20. The top document seals off mouth 18 so that the force due to atmospheric pressure is greater than the force due to spring 30 and vacuum PIV. This causes foot 15 to rise so that the document is brought against spaced perforated belts 50, covering the mouths of vacuum chambers 60. Stationary member 25 closes off ports 17 when foot 15 is in the elevated position and also functions to strip the document from foot 15. Belts 50 are endless belts trained about pulleys and function to convey the documents to a work station. The vacuum in chambers 60 causes the documents to adhere to belts 50.

As the document comes against belts 50, it also closes off ports 70 leading to chambers 71. Chambers 71 also communicate with ports 72. Thes...