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 82
anically after a shorttime, many workers consider it a certain drawback. In thetype of mercury interrupters which we shall now describethis drawback is absent. This, together with the wide rangeof working pressure which they permit, make them perhapsthe most desirable breaks—at any rate where small… … Fig. 27. surface is replaced by solid metallic contacts. The jet ismaintained either by centrifugal force or by mechanicalmeans, or by gravitation, but in every instance the exis-tence of the jet is dependent on the rotation or movementof the break, so that there exists no jet, and consequentlyno…
Radiography · X-rays
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