Tate filed for a British patent in 1881, and received it in 1884. Charles and Edwin Layton, London publishers of works on insurance, annuities and mathematics, sold Tate’s arithmometer. They exhibited ...

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 ...

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 ...

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.

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 ...

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.

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 ...

So I knew there had to be at least a century of backstory to get to the arithmometer. Having a rainy day ahead, I decided to find out exactly where the Leibniz wheel came from and what it was ...