Explore the incredible restoration of a forgotten Arithmometer, a fully mechanical calculator capable of adding, multiplying, and dividing, brought back to life with precision! The restoration ...

Object Details maker Maschinnenfabrik W. T. Odhner Description The family of W. T. Odhner continued to manufacture calculating machines in St. Petersburg from the time of Odhner’s death in 1905 until ...

References: Stephen Johnson, “Making the Arithmometer Count,” Bulletin of the Scientific Instrument Society, No. 52, 1997, 12–21. “Rapport fait par M. Francoueur. . .,” Bulletin de la Société ...

He then went into the arithmometer, which is arguably the first commercially successful mechanical calculator with four functions. That was around 1821 or so. But [Dan] mentions it used a Leibniz ...

Then Willgodt Odhner’s offspring moved production to Sweden, while in the Soviet Union the Odhner Arithmometer was produced under the brand “Felix” until the 1970s. 3.

He formed the American Arithmometer Company with three colleagues in 1886. Their first model, manufactured the next year, was sold for $475 apiece.

AT a well-attended meeting of the Newcomen Society held in the rooms of the Royal Society on February 16, Mr. R. Nilsson gave a paper entitled "The Pascal Arithmometer and Other Means to Solve ...

Peter Gray, On the Arithmometer of M. Thomas (de Colmar), and its application to the Construction of Life Contingency Tables, Journal of the Institute of Actuaries and Assurance Magazine, Vol. 17, No.

Image View Description Arithmetical teaching aid, "A. Sonnenschein's Improved Arithmometer", in two boxes 1 (A and B) and 2, made by George Philip and Son, London and Liverpool.