Browse Prior Art Database

Serial Display Device

IP.com Disclosure Number: IPCOM000090132D
Original Publication Date: 1969-Feb-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Mouchon, R: AUTHOR

Abstract

This device is for serially displaying the symbols of alphanumeric messages. The device comprises a set of individual toothed plastic belts 1 carrying engraved symbols 2. The belts can be transparent and the engraved symbols opaque or vice versa. The path of each belt 1 is defined relative to an aperture display 3 by a pair of idler gears 4 and a belt driving gear 5 which carries a toothed flange 6 rigidly secured to it. The position of each belt is sensed by an associated magnetic pickup cooperating with a metallic element carried by the belt. The belts surround a luminous source 7 which illuminates the symbols when they are brought between aperture 3 and source 7.

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Serial Display Device

This device is for serially displaying the symbols of alphanumeric messages. The device comprises a set of individual toothed plastic belts 1 carrying engraved symbols 2. The belts can be transparent and the engraved symbols opaque or vice versa. The path of each belt 1 is defined relative to an aperture display 3 by a pair of idler gears 4 and a belt driving gear 5 which carries a toothed flange 6 rigidly secured to it. The position of each belt is sensed by an associated magnetic pickup cooperating with a metallic element carried by the belt. The belts surround a luminous source 7 which illuminates the symbols when they are brought between aperture 3 and source 7.

Gears 4 and 5 can freely rotate on parallel axles 4' and 5' and they are mounted side-by-side on such axles. Gears 5 can be rotated individually by a driving pinion 8 which is operable to be brought into engagement with any one of flanges 6. Pinion 8 is mounted for longitudinal sliding movement on shaft 9 and for rotation with it by a longitudinal key 10. Shaft 9 is drivingly connected to stepping motor 11. A carrier assembly 12 carries pinion 8 and can slide along an axle 13 parallel to shaft 9 under the action of stepping motor 14 and cooperating timing belt 15.

When an incoming message is to be displayed, carrier assembly 12 is first brought to the left under the control of motor 14 in order to enable pinion 8 to drivingly engage the first flange 6. In order to display the fir...