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Oskar Junghans
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Individual
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Individual
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Publication of GB190612416ApublicationCriticalpatent/GB190612416A/en
12,416. Junghans, O. Sept. 22, 1905, [date applied for under Patents Act, 1901]. No Patent granted (Sealing fee not paid). - Optical pointers.-In a speed or other indicator, an electric lamp l is mounted so as to rotate with the indicating-needle z and is provided with a reflector r for directing the light along the needle. The lamp thus always illuminates that part of the dial in the vicinity of the point indicated. The electric current is conveyed to the lamp through contact-rings on the spindle of the needle.
GB190612416D1905-09-221906-05-28Illuminating Device for Speed and other Indicating Apparatus.
ExpiredGB190612416A
(en)