Textiles: fiber preparation
Patent
1974-09-05
1976-08-03
Shapiro, Paul E.
Textiles: fiber preparation
335206, 335207, B41J 530
Patent
active
039724034
ABSTRACT:
Apparatus for attachment to a standard typewriter for selectively actuating one or more of a plurality of magnetically actuated switches in electrical circuits that are connected to recording means through an electrical matrix circuit. A switch and actuating lever are provided for each of the unique keys of the typewriter so that signals identifying the corresponding character or function can be produced. The apparatus is compact and can be easily installed beneath the keyboard under the typewrter. Pivotable actuating levers having magnets thereon move into close proximity to the magnetically actuated switches in response to striking of the typewriter keys. The apparatus also includes magnetic shielding for preventing a lever from actuating more than one switch, even though the switches can be in extremely close proximity to one another.
REFERENCES:
patent: 3505869 (1970-04-01), Crawford
patent: 3533029 (1970-10-01), Steinbach et al.
patent: 3573808 (1971-04-01), Pear, Jr.
patent: 3573810 (1971-04-01), Hanewinkle
patent: 3612240 (1971-10-01), Parker
patent: 3648817 (1972-03-01), Siegel
patent: 3651259 (1972-03-01), Hoffman et al.
patent: 3656181 (1972-04-01), Pack
Handbook of Tradenames, Zimmerman and Lavine, 1953 edition p. 34, Allegheny Mumetal.
Van Alstine Cyle
Webb William E.
LandOfFree
Decoding means for use with a 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 Decoding means for use with a typewriter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoding means for use with a typewriter will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1923841