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 ...

In 1881 the English engineer Samuel Tate applied for a British patent for an improvement in the arithmometer invented by the Frenchman Charles Xavier Thomas. This stepped drum manual non-printing ...

Odhner Arithmometer American History Museum. Click to open image viewer. Odhner Arithmometer CC0 Usage Conditions Apply Click for more information. Click to view download files. Click to view IIIF ...

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 ...

He formed the American Arithmometer Company with three colleagues in 1886. Their first model, manufactured the next year, was sold for $475 apiece. Only 50 of them were made, ...

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 ...

Odhner Arithmometer. Legion Media Swedish engineer Willgodt Theophil Odhner spent most of his life living and working in St. Petersburg. In 1873, he invented ...

Adolf Sonnenschein's 'Arithmometer', late 19th century. Image View Description. Arithmetical teaching aid, "A. Sonnenschein's Improved Arithmometer", in two boxes 1 (A and B) and 2, made by George ...

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.

Describing in detail, with the use of slides, the arithmometer invented by Blaise Pascal (1623–62) when a youth of nineteen, the author said that Pascal's basic invention was the 'ten-carry-over ...