Browse Prior Art Database

Fluid Controlled Punch

IP.com Disclosure Number: IPCOM000095690D
Original Publication Date: 1964-May-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 35K

Publishing Venue

IBM

Related People

Jackowski, CS: AUTHOR

Abstract

Fluid pulses are operable to directly control a document punching mechanism without a high pressure fluid source or apparatus for converting fluid pulses into electrical signals.

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Fluid Controlled Punch

Fluid pulses are operable to directly control a document punching mechanism without a high pressure fluid source or apparatus for converting fluid pulses into electrical signals.

A short pulse of low pressure, preferably generated in conjunction with a fluid timing pulse, is supplied to input duct 1 and chamber 2 during the time rotating cam 3 is approaching the low dwell position shown. The fluid pulse raises follower-piston 4 into contact with cam 3 permitting interposer 5 to enter between piston 4 and punch 6 due to the force of spring 7 against follower arm 8. As the cam approaches its high dwell (phantom line), piston 4 is driven against interposer 5. This forces punch 6 down through guides 9 and document 10 into die 11.

Subsequent rotation of cam 3 causes arm 8 to retract interposer 5 and pivot punch restore crank 12 to raise punch 6. Spring 13 urges crank 12 counterclockwise against stop 14 to hold the punch up until selected. Piston 4 is not restored to its upper position due to withdrawal of interposer 5, unless it is again actuated by a fluid pulse at duct 1.

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