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US 4,731,025 AGranted
Time teaching device
OwnerFrank J. Taylorinventor
Life of this patent
Estimating the term…
Abstract
This invention deals with a teaching means for reading time by providing simulated analogue and digital clocks wherein said clocks function independently from each other.
Claims1
A device for teaching how to read time values indicated by an analogue clock and by a digital clock and how to convert analogue clock values into digital clock values, or vice versa;
- said device being a housing having a front portion equipped with a simulated analogue clock and a simulated digital clock, each clock being independently controllable, and wherein said analogue clock comprises a face having a plurality of radially spaced numerals representing hours of the day and minute divisions therebetween, a centrally and rotatably affixed hour hand and a centrally and rotatably affixed minute hand, said hour hand and said minute hand being rotatable independently from each other;
- and wherein said digital clock comprises a plurality of numerals representing the hours of the day and numerals representing minute values imprinted on individual bands, said bands forming loops around upper and lower rolls, said upper rolls being rotatable and affixed to shafts connected to knobs which are located outside said housing and are rotatable independently from each other, the lower rolls being rotatably mounted on shafts.
Dependencies are inferred from the claim text.