Typewriter

Details Typewriter Typewriter

1981-02-26

1983-08-30

Pieprz, William

Typewriting machines

Means auxiliary to typewriting function

Means for correcting typing errors

400215, B41J 2942

Patent

active

044013957

ABSTRACT:
The typewriter has a drive mechanism including a vibrating mechanism and a feeding mechanism for a correction ribbon. The vibrating mechanism has a pair of ribbon vibrators, a cam follower provided to one of the vibrators, an eccentric cam designed to make one complete revolution for each printing operation in response to depression of associated key, and a spring member for resiliently biasing the cam follower toward the peripheral surface of the eccentric cam. The feeding mechanism has a pair of spindles for carrying ribbon spools, a ratchet wheel mounted on one of the spindles and a feed lever connected to the other vibrator. Upon depression of a correction key for setting the ribbon vibrators to be actuatable, followed by depression of an alphanumeric key, the ribbon vibrators are actuated by rotion of the eccentric cam so that the correction ribbon is raised from its inoperative position to its operative position. When the correction ribbon is lowered from its operative position to its inoperative position, the feed lever is actuated in timing with the return stroke of the ribbon vibrators for feeding the correction ribbon a predetermined length.

REFERENCES:
patent: 2886162 (1959-05-01), Eissfeldt et al.
patent: 3154183 (1964-10-01), Wolowitz
patent: 3397767 (1968-08-01), Hobbs
patent: 3724633 (1973-04-01), Korb et al.
patent: 3747734 (1973-07-01), Norman et al.
patent: 4172672 (1979-10-01), Oddicini et al.

Affiliated with

Also associated with

Rating

Typewriter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Typewriter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Typewriter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-904092