Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 78
Lamplough Reviews of Books Topical and Industrial Section (Floodlighting) page37 41 42 58030805 B.T.H. FLOODLIGHT PROJECTORS. An interesting sign installation employingB.T.H. Floodlight Projectors has beencaniecl out at the Maypole MargarineWorks, Southall. The sign is a paintedboard—white letters… … Fig. 2.—Showing installation of B.T.H. floodlighting projectors atthe Maypole Margarine Works, Southall. The beam of light from a projector isof circular section, and to light a 100-feetsign six feet high with three such beamswould not be practicable. To have thenecessary beam, 33 feet in…
Lighting
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