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Illustration of "Tripin" 3-pin earthed plug dated 1911. The earthed consumer plug has several claimants to its invention. In Britain, a 1911 book [9] dealing with the electrical products of A. P. Lundberg & Sons of London describes the "Tripin" earthed plug available in 2.5 amp and 5 amp models.
Early GEC 2-pin plug and socket as depicted in the 1893 GEC catalogue. The earliest domestic plug and socket is believed to be that patented by T. T. Smith in 1883. [27] This was shortly followed by patents from W. B. Sayers and G. Hookham; these early designs had rectangular plugs with contact plates on either side.
BS 546, "Two-pole and earthing-pin plugs, socket-outlets and socket-outlet adaptors for AC (50-60 Hz) circuits up to 250 V" describes four sizes of plug rated at 2 A, 5 A (Type D), 15 A (Type M) and 30 A. The plugs have three round pins arranged in a triangle, with the larger top pin being the earthing pin.
BS 73:1915 is the original standard for 5 amp 2 pin plugs and sockets, superseded by BS 372. The correct place for old British 2 pin plug information is probably AC power plugs and sockets in a new sub-section under "Obsolete Types", and I propose to start that. Based on the poor quality and inappropriateness of the current paragraph in BS 546 ...
GEC 4000 series, and operating systems COS, DOS, OS4000, SCP-2; GEC Series 21; GEC Series 42 (Sun-2 and Sun-3) GEC Series 63; Early switched-mode power supply OEM; Early high-resolution colour visual display units (mainly for military use) Computing consulting services (mainly to other GEC companies) Third-party maintenance; X.25 packet switches
Electrical appliances were fitted with 2-pin plugs and quasi-UK three pin plugs (which meant they were compatible with BS 1363 or BS 546 sockets, but the plug itself did not comply with the British Standard). After the enforcement of the regulation, many British standard electrical products are common in Hong Kong market.
The GEC facilities in Rugby were split into GEC Alstom and Cegelec Projects, but in 1998 the two companies were reunited under the Alstom banner. An issue relevant to UK employment and insolvency law arose in 2011, when there was a steep increase in the price of copper ; AEI Cables Lid. experienced difficult trading conditions and declared ...
In September 1967, GEC announced it wanted to take over AEI and, on 24 May 1968, GEC agreed to merge its domestic appliance division with BDA. EMI would own a third, and GEC two thirds. The managing director of BDA from September 1966, Laurence Peterken, was the new managing director, but he left two weeks later.