A manual of practical medical electricity - the Röntgen rays and Finsen light (1902) (14596980760)

Identifier: manualofpractica00turn (find matches)
Title: A manual of practical medical electricity : the Röntgen rays and Finsen light
Year: 1902 (1900s)
Authors: Turner, Dawson
Subjects: X-Rays Electrophysiology Electrosurgery Electric Stimulation Therapy Electrotherapeutics X-rays Electrophysiology Electrosurgery
Publisher: New York : William Wood & Company
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School



Text Appearing Before Image:
o Cu to form a spiral of about ten turns, which is placed inside^a glass tube, such as a lamp-chimney, around which a well-insulated fine wire is coiled. The thick wire, after travers-ing the glass tube, is attached to the other limb of thedischarger (Fig. 93). 10 146 A Manual of Practical Medical Electricity The lamp-chimney and enclosed wire spiral are nowimmersed in a glass vessel half filled with petroleum ; theextremities of the fine wire coiled upon the chimney arebrought up to a convenient height in glass tubes ; the
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Fig. 92.—Reinigers Battery with Automatic PlungeApparatus. latter can be corked at the bottom and then filled withpetroleum so as to carry the insulation still further, forthe glass by itself is of Httle use. The induction coil should be^^fed by six or more accumu- Tators or very large bichromate cells. The proper propor- High Potential Electricity 147 tion to give the primary and secondary wires in theinduction coil in the petroleum must be found by successiveexperiments. My primary wire isNo. i6,B.W.G., and has ten turns ;my secondary is of No. 30 silk-covered wire, and has about100 turns, and between each turn is a fibre of silk. Thiscan be omitted if the turns of the wire do not touch. On passing the current from the cells through the m ^ ^ Q aa 0 ^^