[Pagina principale]

Rechnerlexikon

Die große Enzyklopädie des mechanischen Rechnens

34.204.173.36 | Log in | Aiuto

  DE  EN  FR  IT 
Pagina principale
Tutte le pagine
Ultime modifiche

Versione stampabile
Discussione

Articolo
Immagine
Brevetto



Pagine speciali
Pfeil.gif Brevetti  Pfeil.gif Stati Uniti  

Patent:US2533443


Brevetto:US 2533443
Titolo:Computing Device
Data:12.12.1950
Luogo:New York (NY), USA
Nazione:Stati Uniti
Persona:Farbman, William (P)
Ditta:
Link interni:Scheibenaddierer
Keywords:
Link al brevetto:
(without guarantee)
 US2533443 (espacenet),  US2533443 (uspto)


Enlarge

US2533443 Bild

This invention relates to computing devices and more particularly to an adding machine pr the like of0 the type that may be carried about in a pocket such as of a vest or coat etc.
... cut ...
Another object of this invention, is to provide a series of numbering wheels arranged to perform operations of addition, multiplication or division and wherein each wheel directly actuates a succeeding wheel and is arranged to effectively by-pass a preceding wheel without interfering therewith. This, objective is accomplished, moreover, by a minimum of component parts insuring cheapness of manufacture as well as ease of operation.