Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 225
bv metal shades for this class of to see one leading journal using in alow press room the combined light ofan inverted mantle gas lamp and atungsten lamp to secure what theprinter called a tolerable makeshiftfor arc lamp light. In the majorityof cases colours could not be matchedfor either tint or… … Fig. 10.—Kotai-y Presses of Tlu: Tinier lllumiuated lo (i-,Hiaitz) \apour Lamps. Flat-bed presses are quite simjjleto hght, ancl require an average illu-mination of about 5 foot-candles onthe working plane. Presses for two- and three-colourwork need not only a good illuminationof not less than 5…
Lighting
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