Registers – Miscellaneous – Numeral wheels
Patent
1981-04-10
1986-05-27
Pitts, Harold I.
Registers
Miscellaneous
Numeral wheels
200 1R, G06, G07
Patent
active
045917027
ABSTRACT:
In devices such as electronic calculators, which perform mathematical or like functions and require plurality of data inputs to perform their functions; a data input key is pivotally maintained within the body of said device and is adapted to provide a plurality of input data. The data input key has an upper exposed portion having an opening configured and adapted to be engaged by the thumb or finger of the user whereby the key may be manipulated to various contact positions situated in a circular or longitudinal path. These various contact positions provide different input data to the device. In another embodiment, a plurality of the input keys may be used to accommodate a large number of inputs, for example, the inputs of a typewriter.
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