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Samuel Lowe
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Individual
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Individual
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Publication of GB190719902ApublicationCriticalpatent/GB190719902A/en
19,902. Lowe, S. March 6, 1908. Dark-slides.-To prevent double exposures, a spring plate,f is fastened to the shutter b by a screw g. When the camera is loaded,this plate is moved outwardly to lie over the .plate e fixed .to the slide. When the shutter is drawn to expose the plate, the plate springs back, and on the shutter being closed again springs under the catch d, undercut at d<1>. The plate f has to be purposely .released from this catch 'before the shutter can be withdrawn a second time.
GB190719902D1908-03-061908-03-06Improvements in Photographic Dark Slides and the like.
ExpiredGB190719902A
(en)