End of line locking mechanism for power operated typewriter

Details End of line locking mechanism for power operated typewriter End of line locking mechanism for power operated typewriter

1979-01-08

1981-07-07

Wright, Jr., Ernest T.

Typewriting machines

Locking or interlocking mechanism

Locking means actuated in response to a condition

400346, 400161, 4004402, B41J 2954

Patent

active

042771927

ABSTRACT:
A power operated typewriter having an end of line locking mechanism comprises a clutch interposed between a drive motor and a printing mechanism, a control lever for engaging the printing clutch to print a character by the printing mechanism when a key lever is depressed, and lock means for locking the control lever so as to hold the printing clutch in its disengaged condition, which can prevent any printing operation even if the key lever is depressed after the right-hand margin position has been reached and is operative.

REFERENCES:
patent: 3086635 (1963-04-01), Palmer
patent: 3195707 (1965-07-01), Reynard
patent: 3353646 (1967-11-01), Young
patent: 3382963 (1968-05-01), Cralle et al.
patent: 3404766 (1968-10-01), Castle et al.
patent: 3592313 (1971-07-01), Castle et al.
patent: 3827542 (1974-08-01), Blum
patent: 3871505 (1975-03-01), Theilen
IBM Technical Disclosure Bulletin, "Line Lock Mechanism", Palmer, vol. 10, No. 12, May 1968, p. 1911.
IBM Technical Disclosure Bulletin, "Space-to-Print and Print-to-Space Interlock", EMIG, vol. 12, No. 3, Aug. 1969, pp. 471-472.

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