Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 64
Tatsfield Hill, Surrey, aftercertain alterations have been made tothe optical apparatus resultant on theexperiments of the last two years. (SeeFig. 2, p. 54.) A second light of the same type will beestablished at Hartley, near Cranbrook,in Kent. Both these lights will bevisible at ranges of over 35… … :a THE ILIAMIXAIINCJ KXCJLXEEK (feu. I be equipped for twelve months un-attended operation. They are of the revolving type, therotation of the lens being obtained by themovement of certain sensitive diaphragmswhich are operated by the gas passingunder pressure to the burner ; on thelight being…
Lighting
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