Practical radiography : a handbook for physicians, surgeons, and other users of X-rays (1901)
Isenthal, A. W, Ward, H. Snowden (Henry Snowden), 1865-1911 · London : Published for The Photogram, Ltd. by Dawbarn and Ward, Ltd. · leaf 76
sobtained is very marked, whilst at the same timesparking and consequent wear of the contacts, as well asthe heating and untempering of the contact spring, aregreatly reduced. This is attained by providing a separatespring for the vibrating contact piece, so that the armaturemay move through a… … Fig. 24. 6+ Practical Radiography the type we have just described. On the other hand, themore we increase the distance between the point of thescrew and the fibre end the longer will the contact last and
Radiography · X-rays
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