Browse Prior Art Database

Manual Input Control

IP.com Disclosure Number: IPCOM000095366D
Original Publication Date: 1965-Dec-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Voit, WF: AUTHOR

Abstract

Manual input to a cyclically operating machine is controlled by pneumatic logic to prevent multiple cycle operation. Keybutton 10 when in its normal position as shown positions port 11. This is in alignment with air supply conduit 12 and maintains thin flexible tape 13 in metered depression 14 aligning control port 15 with air supply conduit 16. Tape 13 is held fixed at both ends and is shiftable by supply of pressure in conduit 24, opposite depression 17 to move port 15 out of alignment with supply 16.

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Manual Input Control

Manual input to a cyclically operating machine is controlled by pneumatic logic to prevent multiple cycle operation. Keybutton 10 when in its normal position as shown positions port 11. This is in alignment with air supply conduit 12 and maintains thin flexible tape 13 in metered depression 14 aligning control port 15 with air supply conduit 16. Tape 13 is held fixed at both ends and is shiftable by supply of pressure in conduit 24, opposite depression 17 to move port 15 out of alignment with supply 16.

Upon depression of keybutton 10 control slot 18 becomes aligned with conduit 16. A pneumatic circuit is completed to actuator 19 thus picking clutch latch 20 and commencing rotation of cyclically operable machine shaft 21. Timing wheel 22 rotates with shaft 21 and temporarily connects an air supply 23 with tape control conduit 24. This is effected through timing port 25 to shift tape 13 and thus position port 15 out of alignment with supply 16. The supply pressure to actuator 19 is thus cut off and latch 20 restores under the influence of spring 26 to its set position to disengage the clutch at the end of one cycle.

In the event the keybutton remains held down at the end of the cycle a second cycle does not occur due to the new position of tape 13. A second cycle can be initiated however by letting up on keybutton 10. Such again aligns port 1 1 with supply 12 to shift valve 13 through actuating depression 14. A second depression of keybutton 1...