File:Different-regulators.jpg
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[edit]DescriptionDifferent-regulators.jpg |
English: Different “regulators.” (a) The James Watt (1736–1819) regulator. Two shafts link two heavy balls to a vertical rod whose rotatory motion is driven by a steam engine through a lever. As the angular speed increases, the centrifugal force moves the balls further apart while the sliding collar rises along the rod thereby acting on the lever to decrease the steam admission. The opposite occurs when the angular speed is too slow. (b) One of Foucault’s regulators built for the imperial marine. Such regulators were little if at all affected by the gravity. Highly sensitive springs provided the restoring force. Steam admission was regulated by levers (not shown) integral with the sliding collar. (c) A Foucault blade regulator built by Eichens in 1867. Here the rotation of the aluminium blades whose gap increases with their angular speed is proportionally slowed down by the opposition of the air. The counterweights were meant to increase the sensitivity. |
Date | |
Source | Andrei Gorea. "A Refresher of the Original Bloch’s Law Paper (Bloch, July 1885)" , i-Perception doi:10.1177/2041669515593043 |
Author | Andrei Gorea |
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https://creativecommons.org/licenses/by/3.0/ This article is distributed under the terms of the Creative Commons Attribution 3.0 License ( https://creativecommons.org/licenses/by/3.0/ ) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page ( https://us.sagepub.com/en-us/nam/open-access-at-sage ). |
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