Radiography and the 'X' rays in practice and theory - with constructional manipulatory details (1898) (14777925463)

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:

attachment to the terminal which will afterwards be placed on the head near washer No. 7. It must be carefully borne in mind that, in order to ensure the wire being wound continuously in one direction, the handle must be rotated clockwise for sections 1, 3, and 5, and counter-clockwise for sections 2, 4, and 6. When the whole has thus been satisfactorily wound, and tested for continuity, the completed secondary should be well basted with melted paraffin wax, and the surface smoothed off with a warm iron spatula, until it stands at the same level as the washers. The position of the ends of the wire, where they pass through the section division, is shown at fig. 6, where for clearness an inclined line takes the place of a complete coil of wire. § 22. If the operator decides to make the 6 in. spark coil, he will be more likely to succeed if, instead of building up the coil in seven sections only, of about 1 5/8 in. space each, he fills in each of those spaces with twelve

Text Appearing After Image:

Fig. 6 — Mode of Winding Sections.sections wound in between cheeks of paraffined paper, the same size as the vulcanised fibre washers, each paper section having about 1/8 in. thick of wire coiled in it. The best way to coil these sections is to procure a metal collar, a trifle larger in diameter than the ebonite tube of the coil, and of the thickness that it is intended the sections should be. A spindle passes through the centre of this collar, and is supported on upright standards similar to those of the winder described at § 17. The spindle carries upon it two 1/16 in. brass or zinc discs, carefully faced up, which are hold in their place on either side of the collar by means of back nuts. These discs should of course be somewhat larger than the diameter of the completed sections. The collar should be slightly curved on one side, to allow the wire to slip off easily, after winding on ; and it must be borne in mind that even on the side at which it is smallest

radiography and the x rays in practice and theory with constructional manipulatory details 1898 book illustrations medicine medical illustrations medical history history of technology electric power electricity x ray images from internet archive

1898

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