Keyboard signal storage mechanism

Details Keyboard signal storage mechanism Keyboard signal storage mechanism

1978-11-16

1980-11-25

Crowder, Clifford D.

Typewriting machines

Including delay means for preventing malfunction in powered...

Delay by storage of next character to be imprinted

400300, 400478, B41J 2302

Patent

active

042355540

ABSTRACT:
A coded electric signal generating keyboard for a single element typewriter is disclosed which has a keylever signal storing function and includes an interlock mechanism for permitting only one interposer at a time to be moved out of its normal position. Thus after depression of a particular key another key is prevented from being depressed until the interposer moved to an operative position is restored to the normal position during an initial part of a printing cycle initiated in response to depression of the particular key. It further includes an arresting mechanism operable to arrest another subsequently released interposer to an intermediate stored position during the remaining part of the printing cycle whereby another printing cycle may be initiated at the end of such printing cycle.

REFERENCES:
patent: 3086635 (1963-04-01), Palmer
patent: 3718243 (1973-02-01), Chvatlinsky
patent: 3721327 (1973-03-01), Van Der Werf et al.
patent: 3817366 (1974-06-01), Blum
patent: 3827542 (1974-08-01), Blum

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