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 148,107 pages of information and 233,634 images on early companies, their products and the people who designed and built them.

Jean Chretien

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Scale model of Chrétien's crane shown at the 1867 Paris Exhibition, on display at the Musee des Arts et Metiers
JD 2019 CNAM Chretien2.jpg

Jean Chrétien (b.1834)

c.1860 Invented a travelling steam crane in which the hook was raised and lowered by a steam-operated piston built into the jib. The travel of the chain was multiplied by the use of pulleys, in the manner of Armstrong's hydraulic jigger. A scale model of the crane was shown at the 1867 Paris Exhibition, and is now displayed at the Musée des Arts et Metiers.

Note: Direct-acting steam cranes were also made by Robert Morrison and Co. These were fixed, not mobile, and had a simple direct-acting ram without the multiplying 'jigger' arrangement used by Chretien.


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