Steam engine indicator, 19th century. Illustration of the Thompson design of steam engine indicator, patented in 1875. An indicator is a device used t

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Steam engine indicator, 19th century. Illustration of the Thompson design of steam engine indicator, patented in 1875. An indicator is a device used to record the changes in pressure in a steam engine or other pressurised device. This indicator is from the Schaeffer and Budenberg company, from the Buckau district of Magdeburg, Germany. Artwork from 'Chaudieres et Machines a Vapeur' (1911) by French civil engineer Max de Nansouty (1854-1913), part of the 'Les merveilles de la science' series of 1867-1891 by Louis Figuier.

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Size: 3535px × 5445px
Photo credit: © Science Photo Library / Alamy / Afripics
License: Licensed
Model Released: No

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