Radiography and the 'X' rays in practice and theory - with constructional manipulatory details (1898) (14777933723)

Identifier: radiographyxrays00bott (find matches)

Title: Radiography and the 'X' rays in practice and theory : with constructional manipulatory details

Year: 1898 (1890s)

Authors: Bottone, Selimo Romeo

Subjects: Electric radiation X-rays X-Rays Radiography

Publisher: London New York : Whittaker & Co.

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

Text Appearing Before Image:

Fk;. IJ.—Tesla Transformei;. In this case the clapper or vibrating hammer must beretained against the contact screw by placing a slice ofcork, of sufficient thickness, between the hammer headand the coil core. It is even more essential in using analternating current that a sufficient resistance shouldbe used in circuit wuth the dynamo and coil than is thecase when a continuous current dynamo is employed. GO liADIOaRAlllY Personally, the author has never found the alternatingdynamo vury satisfactory when used in conjunction withthe coil. Iliis is prohahly due to the fact tliat the ^>V^^;X

Text Appearing After Image:

lui. 20.- -Ti;sLA Ti(ansk(»i;mei:. alternations, instead of being clean and sharp, as repre-sented graphically hy/\y^\X\y\y\, partake more ofan undulatory character, as shown CHOICE OF SOURCE OF CJUUENT 01 § 33. There is, however, a niodificatiDn, or, to speakmore exactly, an addition to the ordinary coil, known asthe * Tesla * transformer, which may be used in con-junction with the alternating current dynamo, that givesfairly good results. AVo present illustrations of twoforms of * Tesla apparatus at figs. 1!), 20, and 21. These

рентгенография и рентгеновские лучи на практике и в теории с конструкционными манипуляционными деталями 1898 г. книжные иллюстрации лекарство медицинские иллюстрации история болезни история техники электроэнергия электричество Рентгеновский высокое разрешение изображения из интернет-архива

1898

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