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Charles Page Eden
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Individual
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Individual
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Publication of GB191306537ApublicationCriticalpatent/GB191306537A/en
6537. Eden, C. P. March 17. Range-finders.-In a coincidence instrument, the two views are presented to the telescope 4 by reflection from the back surface 7 of a prism 6 and by reflection from the back surfaces of prisms 10, 11 and a glass plate respectively. The prisms 10, 11 are carried in a frame eccentrically mounted at 9 and spring- urged against the adjusting-screw 16, movements of which give range-readings on a scale 17.
GB191306537D1913-03-171913-03-17Improvements in or relating to Distance or Range Finders.
ExpiredGB191306537A
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