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Expired
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Emil Widmer
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Individual
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Individual
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Publication of GB191024909ApublicationCriticalpatent/GB191024909A/en
F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
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Engineering & Computer Science
(AREA)
General Engineering & Computer Science
(AREA)
Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices
(AREA)
Abstract
24,909. Widmer, E. Oct. 26. Electric-lamp casin,gs.--A protecting-case for an electric lamp comprises a glass bell d screwing into an insulating-ring a which screws into the casing e. The adjoining faces of these parts are separated by washers f, which prevent the entry of water into the casing. The ring a is provided with an annular rib h, and can be used for supporting a reflector.
GB191024909D1910-10-261910-10-26A Waterproof Protector for Electric Lamps.
ExpiredGB191024909A
(en)