Typewriter key action

Details Typewriter key action Typewriter key action

1978-04-17

1980-03-04

Pieprz, William

Typewriting machines

Having rotated power drive intermittently applied for...

For repeat-type action

400368, 400375, B41J 2306, B41J 2502

Patent

active

041914830

ABSTRACT:
A direct connection provides coupled movement from a keylever to an interposer of a simple key action in a typewriter. The connection includes an abutment integrally constructed on the keylever inserted within a recess on the interposer to effect movement of the interposer when the keylever is caused to move. Depression of the keylever pushes the interposer downward against a pawl that will engage a rotating power roll to cause initiation of a print movement of a typebar. The keylever while being restored by an underlying spring, will then pull the interposer upward to rest. The keylever and interposer are in planar alignment that is maintained by having the connection contained within a slot of a support member in the typewriter.

REFERENCES:
patent: 2858925 (1958-11-01), Muller
patent: 3225884 (1965-02-01), Krauss et al.
patent: 3578128 (1971-05-01), Frechette
patent: 3706366 (1972-12-01), Hishida et al.
patent: 3809205 (1974-05-01), Madison
patent: 3981385 (1976-09-01), Mueller et al.

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