A new early adding machine by Schwilgué (c. 1840?)

Denis Roegel (1)

1 MOSEL - Proof-oriented development of computer-based systems

This article describes a hitherto unknown adding machine by Jean-Baptiste Schwilgué (1776-1856). This machine is a column adder, and it uses only three keys. Probably dated from the early 1840s, it may be one of the oldest, and perhaps even the oldest key-driven calculating machine in existence.

Mots clés: calculating machine; adding machine; column adder; Schwilgué

Domaines: Histoire et perspectives sur les mathématiques [math.HO]

Denis Roegel. A new early adding machine by Schwilgué (c. 1840?). Bulletin of the Scientific Instrument Society, 2016, 130, pp.24-27. ⟨hal-01374382⟩