Induction coils : how to make, use, and repair them including Ruhmkorff, Tesla, and medical coils, Roentgen radiography, wireless telegraphy, and practical information on primary and secondary battery (1901)
Schneider, Norman H. (Norman Hugh) · New York : Spon & Chamberlain ; London : E. & F.N. Spon · leaf 113
act breaker for medicalcoils is shown in Fig. 26. M M are themagnet coils, A is the armature, carryinga platinum contact, which vibrates againstthe adjusting screw P. The armature ispivoted at /, but is held at a distance fromthe magnets by the springs wS S. The otherend of the armature carries a… … Fig. 26. slowest; when moved towards the magnets,the vibrations become more rapid. Adjust-ment of the two springs S S ^il RR enablesthe contact breaker to operate on varyingcurrent strength, and also tends to lessenthe jerkiness of gravity contact breakers.A flat spring, however, can be substituted…
Induction coils · Radiography · X-rays
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