Browse Prior Art Database

Display Device

IP.com Disclosure Number: IPCOM000095525D
Original Publication Date: 1964-Feb-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 58K

Publishing Venue

IBM

Related People

French, WK: AUTHOR

Abstract

This device displays a number of digits through a window 11 shown in broken line. The digits appear on the circumference of a number of digit wheels 12a... 12c. Each wheel 12 includes a north and a south pole piece 13 and 14 extending inwardly from ring 15 of magnetic material. Wheels 12 are rotationally mounted on core 20 which includes magnetic member 21 for providing a south and north pole, and non-magnetic sectors 22 and 23. Wheels 12 have non-magnetic fillers 25 and 26 which support them for rotational movement about core 20. Wheels 12 have grooves 27 which engage belt 28 having a cutout 29.

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Display Device

This device displays a number of digits through a window 11 shown in broken line. The digits appear on the circumference of a number of digit wheels 12a... 12c. Each wheel 12 includes a north and a south pole piece 13 and 14 extending inwardly from ring 15 of magnetic material. Wheels 12 are rotationally mounted on core 20 which includes magnetic member 21 for providing a south and north pole, and non-magnetic sectors 22 and 23. Wheels 12 have non- magnetic fillers 25 and 26 which support them for rotational movement about core 20. Wheels 12 have grooves 27 which engage belt 28 having a cutout 29.

In operation, wheels 12 are held in position by belt 28 which engages groove
27. Core 20 is rotated to the desired position while belt 28 is moved from left to right until notch 29 is centered over wheel 12a. At this time, wheel 12a is free to rotate and align the pole pieces 13 and 14 with the north and south poles of member 21. Following this, belt 28 again engages groove 27 and holds wheel 12a in place.

At this time, core 20 is rotated to a new position and cutout 29 is placed over wheel 12b. The latter rotates until its north and south poles line up with member
21. In this manner, each wheel 12a... 12c is sequentially adjusted as cutout 29 passes over them.

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