Numeral adding toy

Details Numeral adding toy Numeral adding toy

1981-07-15

1983-01-11

Fuller, Benjamin R.

Registers

Miscellaneous

Numeral wheels

235 91PR, 235116, 434206, G06C 1500, G09B 100

Patent

active

043683819

ABSTRACT:
A numeral adding toy including an arrangement for rotationally indexing in a cooperative manner two rotary wheels displaying numerals to be added and a single rotary wheel displaying the added sum answer by means of a rotationally indexing mechanism including pins or ratchets. The wheel displaying the added answer is rotated the summed number of indexes of the two wheels displaying the numerals to be added. The wheels, having been rotationally indexed, are rotationally returned by means of a releasing mechanism.

REFERENCES:
patent: 1227054 (1917-05-01), Jacobs
patent: 2476580 (1949-07-01), Bergman

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