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US 3,965,593 AGranted
Numeric display using three endless belts
AssigneeGeneral Indicator Corporation
InventorRobert J. Harruff
Life of this patent
Estimating the term…
Abstract
Any numeric display (0-9) can be obtained by rotating the three endless belts to position the indicia on each to combine with the others to form the desired numeral. Each belt has a plurality of faces or display areas along its length and is driven by a separate motor until a sensing means determines the proper face is in display position. The belts follow a serpentine path to permit the belts to be housed in a frame about as high as the numeric readout. A change in the readout can be programmed and initiated at a remote location.
Claims1
A numeric display device comprising:
- a housing having an open front,
- three endless belts mounted in the housing in side-by-side relationship with each belt reeved over rollers in serpentine fashion with a continuous face portion of each belt facing outwardly through the open front of the housing,
- each of the three belts having only five face portions,
- one of the belts having indicia on each of its five face portions while each of the other two belts has indicia on four face portions and a blank fifth face portion,
- the indicia on the three belts being combinable in the open front to form any desired numeral from 0-9,
- means driving each belt independently of the others so as to enable the various face portions to be positioned in the open front,
- and guide means in the open front between adjacent belts to guide the edges of each belt.
4 more elements
Dependencies are inferred from the claim text.