United States. Surgeon-General's Office, American Roentgen Ray Society · New York : Middleditch · leaf 58
Fig. 21. Centrifugal jet mercury interrupter. … Fig. 22. Rotax Interrupter.51 52 X-RAY MANUAL—U. S. ARMY In the Rotax interrupter, Fig. 22, the mercury isthrown into a ring revolving with the case. An insulat-ing disc with a small conducting sector is mounted sothat it may be moved to and from the circumference.When in contact with the mercury,…