Grace's Guide

British Industrial History

Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 132,191 pages of information and 209,712 images on early companies, their products and the people who designed and built them.

Switchgear Testing Co

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of Trafford Park, Manchester.

Conducted switchgear-testing programme for the constituent firms (presumably part of AEI).

1934 A sixteen-element electromagnetic oscillograph was made for the company by Metropolitan-Vickers.

1934 The 3 switchgear manufacturing companies in the AEI group - BTH, Ferguson Pailin and Metropolitan-Vickers Electrical Co were jointly erecting a high power testing plant to handle rupture tests on the largest types of switches[1]


1961 Part of AEI[2]

See Also

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Sources of Information

  1. The Times, Apr 13, 1934
  2. The Times, Aug 31, 1961