Early history AC power plugs and sockets: British and related types

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lampholder plug 1893 gec ltd (london) catalogue


when electricity first introduced houses, used lighting. electricity became common method of operating labour-saving appliances, safe means of connection electric system other using light socket needed. according british author john mellanby first plug , socket in england introduced t.t. smith in 1883, , there two-pin designs 1885, 1 of appears in (british) general electric company ltd. catalogue of 1889. gustav binswanger, german jewish immigrant founded (british) general electric company ltd, obtained patent (gb189516898) in 1895 plug , socket using concentric (co-axial) contact system.


the earthed consumer plug has several claimants invention. 1911 book dealing electrical products of a. p. lundberg & sons of london describes tripin earthed plug available in 2.5 a , 5 a models. pin configuration of tripin appears virtually identical modern bs 546 plugs. in 1914 book electric cooking, heating, cleaning, etc maud lucas lancaster mentions earthed iron-clad plug , socket english firm of a. reyrolle & company. 1911 general electric company ltd. (gec) catalogue included several earthed sockets intended industrial use.








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