The Addiator was a mechanical add/subtract calculator, made by Addiator Gesellschaft, Berlin. A sturdy design, variants of it were sold from August, 1920 until 1982. It was composed of sheet-metal sliders inside a metal envelope, manipulated by a stylus, with an innovative carry mechanism, doing "subtract ten, carry one" with a simple stylus movement.

Only made obsolete by the electronic variety, it was simple and cheap. It also handled non-decimal measurements, like feet and inches, or pounds, shillings, and pence, with no trouble. Addition and subtraction required different 'screens', handled by turning the instrument over, or flipping a front panel, or, later, by extended sliders and an extra lower panel.

More expensive versions even had a built-in slide rule on the back.

This type of calculator was introduced by the Frenchman Troncet in 1889. The Addiator was one of the most popular calculators of this sort, and the name is often used to refer to the type generally.

ee also

*History of computing hardware

External links

* Addiator museum
* calculator museum
* Addiators and many other calculators
* Another beautiful picture
* Collection of calculating devices
* [ Addiator photos and manuals hosted at]

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Addiator — El Addiator Addiator era el nombre comercial de una calculadora mecánica fabricada por la empresa berlinesa Addiator Gesellschaft en el siglo XX. No realizaba más que las operaciones aritméticas de suma y resta. El aparato consistía en unas… …   Wikipedia Español

  • Calculatrice à crosses — Exemple de modèle d Addiator : cette face permet l addition de nombres à 9 chiffres. Le stylet est visible sur le côté droit de l appareil. Une calculatrice à crosses (ou machine à crosses, additionneuse à crosses ou encore machine à… …   Wikipédia en Français

  • Zahlenschieber — Der Zahlenschieber (auch Griffeladdierer) ist ein einfaches Rechengerät für Additionen und Subtraktionen. Er besteht aus einer Reihe von Metallstäben, die mittels eines Griffels verschoben werden können. Jeder Stab hat auf der rechten Seite eine… …   Deutsch Wikipedia

  • Griffeladdierer — Zahlenschieber der Marke EFZET (Franz Zimmer), ca. 1940 Zahlenschieber der Marke Wizard ca. 1950 Der Zahlenschieber (auch Griffeladdierer) ist ein einfaches Rechengerät für …   Deutsch Wikipedia

  • Karl Schulpig — „Eigenmarke“ von Karl Schulpig Karl Schulpig (* 25. Mai 1884; † 19. November 1948 in Prettin) war Gebrauchsgraphiker und Maler. Inhaltsverzeichnis …   Deutsch Wikipedia

  • Schulpig — Karl Schulpig (* 25. Mai 1884; † 19. November 1948 in Prettin ) war ein Grafikdesigner und Maler. Inhaltsverzeichnis 1 Leben und Werk 2 Auszeichnung 3 Literatur 4 Quellen …   Deutsch Wikipedia

  • Dolomites — For other uses, see Dolomites (disambiguation). Dolomites Italian: Dolomiti German: Dolomiten Range …   Wikipedia

  • Andros, Bahamas — Infobox Islands name = Andros image caption = image size = locator Location map|Bahamas|lat=24.433333|long= 77.95 map custom = yes native name = native name link = nickname = Big Yard location = Atlantic Ocean coordinates =… …   Wikipedia

  • Via ferrata — A via ferrata (Italian for iron road . Plural vie ferrate . In German, Klettersteig ) is a mountain route which is equipped with fixed cables, stemples, ladders, and bridges. The use of these allows otherwise isolated routes to be joined to… …   Wikipedia

  • Slide chart — A slide chart is a hand held device, usually of paper, cardboard, or plastic, for conducting simple calculations or looking up information. A circular slide chart is sometimes referred to as a wheel chart or Volvelle.Unlike other hand held… …   Wikipedia

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.