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 C. & E. Layton Description In 1881 the English engineer Samuel Tate applied for a British patent for an improvement in the arithmometer invented by the Frenchman Charles Xavier ...

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 ...

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 ...

Another arithmometer of very compact design, named the “Brunsviga,” had been placed on the table by Prof. Boys. The simple and ingenious “hatchet” integrator was then shown.

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.

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.

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