File:Radiography, x-ray therapeutics and radium therapy (1915) (14570850919).jpg

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Identifier: radiographyxrayt00knoxuoft (find matches)
Title: Radiography, x-ray therapeutics and radium therapy
Year: 1915 (1910s)
Authors: Knox, Robert, 1868-1928
Subjects: Radiography Radiotherapy X-rays
Publisher: London : A. & C. Black
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: MSN

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milled nuts, and on lifting this topwith the motor, one at the same time lifts outthe rotating jet and the fixed contacts againstwhich the mercury impinges, so making and break-ing contact two or four times per revolution.The required amount of mercury is poured intothe vessel and the top replaced and refixed. Theinterrupter is then connected to the coil and con-denser and the motor to the supply mains. Mostof these interrupters are provided with an arrange-ment of contacts and terminals, so that it is pos-sible to double the number of primary interruptions, and so increase theefiect in the secondary or tube circuit; other types have an adjustablewedge-shaped contact. Great attention should be paid to the cleanlinessnot only of the interrupter but also of the motor, and especially of thecommutator and oil cups. To fill the interrupter with gas one tap isconnected to the gas supply by a rubber tube and the other tap is left Watson » so« Fig. 14.—Dreadnought iuter-rujiter. (Watson.)
Text Appearing After Image:
Fig. 15.—Dreadnought interrupter showing detail. F, Shaft bearing. H, Oil cups. K, Motor brushes. A, Container. B, Jet. C, Contact teethE, Screw. open for a few moments in order to expel the air. This tap is thenclosed and the other connected to the gas supply left open, and advantagetaken of the pressure from the mains. If there is no handy gas supply agas bag may be used or ether vapour. The latter may be employed byvaporising a small quantity of methylated ether placed on the top of themercury and starting the interrupter with a small current before closingthe taps. 20 EADIOGRAPHY

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https://www.flickr.com/photos/internetarchivebookimages/14570850919/

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Flickr tags
InfoField
  • bookid:radiographyxrayt00knoxuoft
  • bookyear:1915
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Knox__Robert__1868_1928
  • booksubject:Radiography
  • booksubject:Radiotherapy
  • booksubject:X_rays
  • bookpublisher:London___A____C__Black
  • bookcontributor:Gerstein___University_of_Toronto
  • booksponsor:MSN
  • bookleafnumber:50
  • bookcollection:gerstein
  • bookcollection:toronto
  • bookcollection:medicalheritagelibrary
Flickr posted date
InfoField
27 July 2014

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