Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 42
mentof the mixture for any line of pipe ismade at the injector. with dust, or where it is desired to usesmall units, all troubles due to smallnessof nipple being entirely overcome.The only drawback—usually not animportant one—is that lamps must belighted and extinguished in lines. Mr. L. M. Tye… … Fig. 2.—A view of the same factory. Photograph taken without allowing dust tosettle, showing the exceedingly difficult conditions. A feature is the volume of mixturethat can be carried by a comparativelysmall pipe. The mains consist of 1 in.pipes of about 120 ft. in length anddownstems of £ in.…
Lighting
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