Hallberg, Josef Henrik, 1874- · New York city, The Moving picture world · leaf 132
line of the lowercarbon, as illustrated in Fig. 64. Please note, however,that the crater will not form as in Fig. 64, but, due to thelamp and carbons being tilted backwards, it will form MOTION PICTURE ELECTRICITY 125 higher up, approximately like illustration Fig. 65, whichis a correct… … Fig. 68 same setting as shown in Fig. 65, wyhich represents theproper crater formation for such projection. This settingmay be considered the best for direct current for generalpurposes. There are, however, other conditions to meet. For in-stance, where the machine is placed considerably higherthan…
Motion picture theaters · Electric lighting
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