Automatic Clock
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
This 1930s encyclopedia article describes automatic clocks used in physiotherapy and X-ray therapy to time procedures. These devices functioned as specialized alarm clocks that either signaled the end of a session or automatically shut off the current.
Encyclopedia entry (1928–1936)
AUTOMATIC CLOCKS are used in physiotherapy when administering procedures and represent an alarm clock whose dial is divided into minutes from 0 to 60. The clock hand is set to the desired number, Figure 1. Automatic clock. and upon the expiration of this time, they begin to ring. In X-ray therapy, Gocht's automatic clocks are used, which are included in the primary circuit and, upon the expiration of a certain time, not only ring but also automatically turn off the current.
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Cite this page
“Automatic Clock.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/automatic-clock/