Browse Prior Art Database

Dial Positioning and Release Device

IP.com Disclosure Number: IPCOM000093534D
Original Publication Date: 1967-Oct-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 56K

Publishing Venue

IBM

Related People

Davis, WM: AUTHOR

Abstract

Manual dial 1, having a home Position shown at A, presents character rim 2 with character surfaces 3 and angularly spaced recesses 4. Underlying dial 1 is dial registration level 5 pivotable about fixed pin 6 with positioning arm 7, switch actuating arm 8, and flexible stop arm 9. Tension spring 10 biases lever 2 toward the position shown at A.

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 100% of the total text.

Page 1 of 2

Dial Positioning and Release Device

Manual dial 1, having a home Position shown at A, presents character rim 2 with character surfaces 3 and angularly spaced recesses 4. Underlying dial 1 is dial registration level 5 pivotable about fixed pin 6 with positioning arm 7, switch actuating arm 8, and flexible stop arm 9. Tension spring 10 biases lever 2 toward the position shown at A.

Manual actuation of dial 1 causes arm 7 to engage the lower surfaces of dial 1 and pivot lever 5 as shown at B. Upon release, dial 1 seeks to return to the home position of A, but is restrained by engagement between arm 7 and corresponding recess 4 as level 5 is restrained against clockwise pivoting by engagement between arm 9 and stop 11.

Simultaneously, switch actuating arm 8, which is actuable from the right and nonactuating when engaged from the left, engages switch actuator 12 from the right causing switch 13 to close and initiate operation of scanner 14. Scanner 14 includes a scanning portion which scans adjoining surfaces 3 during the initial portion of a revolution and cam 16 carried by common shaft 15 which engages arm 9 during the terminal portion of the revolution to release arm 9 from stop 11. Release of arm 9 permits lever 5 to pivot as shown at D allowing dial 1 to return to home position as in A.

1

Page 2 of 2

2

[This page contains 3 pictures or other non-text objects]