Keyboard with elongate keys

Typewriting machines – Key-board or key lever-actuating mechanism – Key-board having multiple-character – multiple-movement keys

Patent

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Details

400489, 400490, 200339, B41J 528, B41J 510, B41J 512

Patent

active

044498390

ABSTRACT:
A keyboard for a typewriter or the like including a series of elongate keys disposed in a row and normally with respect to the front edge of the typewriter or at an acute angle with respect thereto. Each of the keys is depressable when a finger pressure is applied on the center, home tablet surface of the key for causing the typing action of a certain letter; the key is depressable when the finger is reached to a tablet surface adjacent to the upper edge of the key and the key is then depressed to cause the typing action for another letter; and the key likewise provides a typing action for still another letter when the finger is reached downwardly toward the lower edge of the key to a lower tablet surface and the key is then depressed. Numerals may be typed either using separate numeral keys located in a separate row or may be typed by depressing the upper tablet surface on each of the elongate keys after using a shift key to cause the printing of the numeral instead of the letter for which the upper tablet surface is primarily dedicated.

REFERENCES:
patent: 1143160 (1915-06-01), Anderson
patent: 1336151 (1920-04-01), O'Connor
patent: 1652464 (1927-12-01), Tyberg
patent: 2408452 (1946-10-01), Stixrud
patent: 2449126 (1948-09-01), Kirkpatrick
patent: 2532228 (1950-11-01), Hesh
patent: 3399287 (1968-08-01), Euler
patent: 3633724 (1972-01-01), Samuel
patent: 4029915 (1977-06-01), Ojima
patent: 4265557 (1981-05-01), Runge
Nethken et al., "Dual-Function Key for Upper and Lower Print Control", IBM Technical Disclosure Bulletin, vol. 22, No. 7, Dec. 1979, pp. 2663-2664.
McCornack, "Single Keybutton Four-Way Switch", IBM Technical Disclosure Bulletin, vol. 21, No. 8, Jan. 1979, p. 3261.
Conway, "Digital X Typewriter Keyboard", IBM Technical Disclosure Bulletin, vol. 18, No. 12, May 1976, pp. 4187-4190.
Kowalski, "Semi-Captive Keyboard", Xerox Disclosure Journal, vol. 1, No. 2, Feb. 1976, p. 85.
Rowe College Typing, H. M. Rowe Company, Baltimore and Chicago, Revised 1971, Cover Sheet, First Index Sheet and p. 9.
Litterick, "QWERTYUIOP-Dinosaur in a Computer Age", New Scientist, Jan. 8, 1981, pp. 66-68.
Advertisement on p. 22 of Personal Computing Magazine of Jun. 1982.

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