Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 332
The lamp was fitted with a specialreflector carried by a bridle, which tookthe place of the usual standards onordinary miners lamps. This was capa bleof swivelling in a larger bridle whichcarried the lamp from two pivots securedto the lamp top. Mr. Plummer pointed out that, as aresult of the… … Fig. 1. -General view ofCeag pillarless miners lamp. 90* !OQ*
Lighting
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