Electronic typewriter

Details Electronic typewriter Electronic typewriter

1984-08-14

1985-11-19

Sewell, Paul T.

Typewriting machines

Including type-set-assemblage mounted on carrier and...

Including type-faces movable relative to type-face-carrier

400279, 400306, 400322, B41J 1958, B41J 1932

Patent

active

045538662

ABSTRACT:
An electronic typewriter comprises a character-bearing disk movable along the platen and a selector to space selected characters according to a plurality of constant spaces or proportional spaces. A permanent, alterable memory has a series of locations, wherein are recorded positioning information for the disk and the platen and constant phrases. A series of keys are operable to select associated registers of the memory to execute the movement of the disk or the printing of the recorded constant phrases, as recorded. An evidence selector is further operable at any point of the printing line to cause an evidence of printed character as bold-facing or underlining and a cancel key is provided to automatically cancel the already printed characters.
The characters are carried by regularly spaced petals of the disk. The characters of proportional spaces have minimum, small, medium and large widths and are regularly spaced along the printing line by providing two different offsets of the characters with respect to the axis of the petals and a preliminary fixed spacing of the disk for the characters of medium and large width.

REFERENCES:
patent: 3354816 (1967-11-01), Giannuzzi
patent: 3447134 (1969-05-01), Thompson et al.
patent: 3558820 (1971-01-01), Baisch et al.
patent: 3757921 (1973-09-01), Bishop
patent: 3780846 (1973-12-01), Kolpek et al.
patent: 3915278 (1975-10-01), Spence et al.
patent: 3924723 (1975-12-01), Cooper et al.
patent: 3968868 (1976-07-01), Greek et al.
patent: 4051945 (1977-10-01), Fujimoto et al.
patent: 4084680 (1978-04-01), Deetz
patent: 4240758 (1980-12-01), Acosta
patent: 4245918 (1981-01-01), Bowles et al.
patent: 4257711 (1981-03-01), Nakajima
IBM Tech. Disc. Bulletin, by C. G. Brown, vol. 20, No. 9, Feb. 1978, pp. 3555-3556.

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