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Expired
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Alfred Julius Boult
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Individual
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Individual
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Publication of GB190800880ApublicationCriticalpatent/GB190800880A/en
880. Boult, A. J., [Benjamin Electric Manufacturing Co.]. Jan. 14. Fastenings, bayonet-joint and spring catch. An insulating-block 14 in an electric-lamp holder is supported from a cap 8 by hooked springs 12, which pass down inclined grooves 17 and engage under shoulders 16 on the block. The casing 29 of the holder is fitted with an annular plate 35 with inwardly projecting lugs 36, preferably three in number, to engage grooves leading to depressions 37 formed by indenting the metal cap 8, so as to constitute a bayonet joint. Leaf springs 40 hold the lugs 36 in the depression 37. Specification No. 689, A.D. 1906, [Abridgment Class Electric lamps &c.], is referred to.
GB190800880D1908-01-141908-01-14Improvements in or relating to Electric Lamp Sockets or Holding Devices.
ExpiredGB190800880A
(en)
Improvements in the Manufacture of Shade Holders, Shade Fittings Lamp or Globe Holders, for Lamps Electric Lights, Gas, Candle, and such like Fittings.