Social England : a record of the progress of the people in religion, laws, learning, arts, industry, commerce, science, literature and manners, from the earliest times to the present day . iysPapin familiarised menwith high pressures inhis Digester, which wasfitted with his own in-vention—the lever safetyvalve. He also used steamto create a vacuum beneatha piston so that atmo-spheric pressure wouldmake it descend; but he ef-fected condensation by theclumsy device of takingaway the fire, so, thoughhis plan was sound intheory, it was hopelesslyunpractical. ThomasSavery, in 1698, patentedwhat he
Social England : a record of the progress of the people in religion, laws, learning, arts, industry, commerce, science, literature and manners, from the earliest times to the present day . iysPapin familiarised menwith high pressures inhis Digester, which wasfitted with his own in-vention—the lever safetyvalve. He also used steamto create a vacuum beneatha piston so that atmo-spheric pressure wouldmake it descend; but he ef-fected condensation by theclumsy device of takingaway the fire, so, thoughhis plan was sound intheory, it was hopelesslyunpractical. ThomasSavery, in 1698, patentedwhat he called a FireEngine, which, thouo^hbehind Papins ideas, wasof practical use. He pub-lished also the MinersFriend, in which he ex-plained his invention andadvised its application toclear mines of water. Hisengine consisted of twovessels communicatingwith the boiler and alsowith the well. Steam was admitted and condensed to form a , whereon the water was sucked from the well into thevessel. Steam was again turned on, and the pressure acting onthe surface of the water caused it to close the valve by which itentered and open another valve leading into a pipe, up which it.
Size: 1096px × 2279px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidsocialenglan, bookyear1901
