Browse Prior Art Database

Sequential Signal Recognition

IP.com Disclosure Number: IPCOM000094752D
Original Publication Date: 1965-May-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 62K

Publishing Venue

IBM

Related People

Hickerson, JE: AUTHOR

Abstract

A proper sequence of permutated codes is indicated by movement of check bar 1 which closes switch 2 or pivots bell crank 3. Check bar 1 moves under the influence of spring 4 when bar 1 is released by all latches 5a, 5b, etc.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 80% of the total text.

Page 1 of 2

Sequential Signal Recognition

A proper sequence of permutated codes is indicated by movement of check bar 1 which closes switch 2 or pivots bell crank 3. Check bar 1 moves under the influence of spring 4 when bar 1 is released by all latches 5a, 5b, etc.

Decoding slides 6 are permutably displaced to provide a continuously open hole for one of a series of pivoted, spring-loaded pins 7a, 7b, etc. The structure and operation of slides 6 is shown in U.S. Patent 3,044,690. Downward pivoting of a pin 7, aligned with the continuously open hole, is permitted by cycle cam 8 and places interponent 9 in blocking position with the upper end of the associated actuating arm 10. When so interposed, arm 10 is driven by power cam 11 and moves associated drive bar 12 to the right, pivoting its associated key latch 5 downward out of locking engagement with check bar 1. The thus activated key latch is held in nonengaging position by associated storage bar 13. Drive bar 12 also pulls signal wire 14 indicating the received coded combination to other mechanism.

Knock-off slide 15 is aligned with slides 6 and has holes 16 normally positioned beneath pin 7. Knock-off abutments 17 on slide 15 are positioned to restore sequence bars 13 and their associated key latches 5 to their normal position if slide 15 is permitted to move to the right. Slide 15 is normally cycled to the right by spring 18 and permissive arm 19. However, during receipt of a proper element in a sequence, the pin 7, repr...