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File:Traité de radiographie médicale et scientifique - cours libre professé a l'écolepratique de la Faculté de Médecine de Paris, deuxième semestre de 1896-1897 (1897) (14755778714).jpg

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Identifier: traitderadiograp00fove (find matches)
Title: Traité de radiographie médicale et scientifique : cours libre professé a l'écolepratique de la Faculté de Médecine de Paris, deuxième semestre de 1896-1897
Year: 1897 (1890s)
Authors: Foveau de Courmelles, François Victor, 1862-
Subjects: X-rays X-Rays Radiography
Publisher: Paris : Octave Doin, Éditeur
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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Fiçr. 51. — Phono-trembleur Radiguet. additionnelle, ou sur la pièce platinée parla vis à lapprochedu ressort. Tout réglage approprié rend le bruit minimum,et lentes ou rapides les interruptions (fig. 52). Les pièces susent plus ou moins rapidement sous lactiondes étincelles de rupture et irrégulièrement. Cest là leprincipal inconvénient des trembleurs. Les roues dentéesavec moteur en dérivation sont préférables; les métro- 110 LA BOBINE DE BUHMKORFF nomes avec tige plongeant dans le mercure, sortes din-terrupteurs Foucault modifiés, peuvent également être
Text Appearing After Image:
employés. Mais nous croyons quon a exagéré cette usuredes pièces platinées, ou plutôt son influence, et rien nestplus facile que de les remplacer. EXCITATEUR ET LONGUEUR DETINCELLE Ut Les interrupteurs oscillants à grande fréquence ont étéobtenus depuis près de vingt ans en Angleterre (2.500 in-terruptions par seconde). MM. Marey, Ward, Boudet deParis, Tesla, dArsonval ont constaté latténuation con-sidérable des effets. physiologiques perçus. M. Gordon aégalement obtenu avec la roue dentée de Masson, entraînéepar un petit moteur électro-magnétique, jusquà 6.000 in-terruptions par seconde. On monte verticalement laxe de la roue, et le moteurétant au dessus. La roue est, au dessous, noyée dans unrécipient sous une épaisse couche de liquide à la fois isolantet lubréfiant; les frottements sont ainsi atténués, en mêmetemps que la masse de liquide isolant arrête létincelle, etrefroidit les parties métalliques. La rapidité dinterruptionest fonction de la ra

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  • bookid:traitderadiograp00fove
  • bookyear:1897
  • bookdecade:1890
  • bookcentury:1800
  • bookauthor:Foveau_de_Courmelles__Fran__ois_Victor__1862_
  • booksubject:X_rays
  • booksubject:Radiography
  • bookpublisher:Paris___Octave_Doin____diteur
  • bookcontributor:Francis_A__Countway_Library_of_Medicine
  • booksponsor:Open_Knowledge_Commons_and_Harvard_Medical_School
  • bookleafnumber:129
  • bookcollection:medicalheritagelibrary
  • bookcollection:francisacountwaylibrary
  • bookcollection:americana
Flickr posted date
InfoField
27 July 2014

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