Dulac safety valve, 19th century. Illustration of a safety vale used to release steam (shown escaping from the valve here) from a boiler if the pressure becomes excessive. This Dulac design consists of a conical plug (left) and a counterweight (right). 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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Creative#:
TOP14051783
Source:
達志影像
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RM
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須由TPG 完整授權
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1800s19thcenturyartworkblack-and-whiteboilersandsteamengineschaudieresetmachinesavapeurcounterweightdulacengineeringeuropeanfrenchhighpressurehistoricalhistoryillustrationindustrialrevolutionindustrylesmerveillesdelasciencelouisfiguiermachinemarvelsofsciencemaxcharlesemmanuelchampiondenansoutymaxdenansoutymonochromeno-onenobodyplugsafetyvalvesteamsteampowertechnologicaltechnologyvalveweight
1800s19thaandartworkblack-and-whiteboilerscenturychampioncharleschaudierescounterweightdedededulacemmanuelengineeringengineseteuropeanfiguierfrenchhighhistoricalhistoryillustrationindustrialindustrylaleslouismachinemachinesmarvelsmaxmaxmerveillesmonochromenansoutynansoutyno-onenobodyofplugpowerpressurerevolutionsafetysciencesciencesteamsteamsteamtechnologicaltechnologyvalvevalvevapeurweight