Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,470 pages of information and 233,895 images on early companies, their products and the people who designed and built them.

Francois Calla

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François Calla (1802-1884) was a French engineer, the son of Etienne Calla.

1835 François took over management of his father's machinery and foundry business.

He admired the machine tools of Nasmyth, Sharp, and Whitworth, and introduced Whitworth's gauges to France. According to Jules Gaudry, Calla visted Manchester, and met Joseph Whitworth, who accused him of copying his machines. Calla responded that 'wishing to do a good job, I found no way of doing differently from you'. They became friends, and Calla represented Whitworth's interests in France.

c.1849 Transferred his workshops to La Chapelle.

The above information is condensed from 'A History of Technology and Invention - Progress through the Ages'[1]

See Also


Sources of Information

  1. 'A History of Technology and Invention - Progress through the Ages - The Expansion of Mechanization: 1725-1860' Edited by Maurice Daumas, translated by Eileen B. Hennessy, Crown Publishers Inc. First published in France in 1968 as 'Histoire Générale des Techniques'