Fig. 30
Drawing showing “method of using the Series Incandescent Lamp manufactured by the Thomson-Houston Elec. Co.” cut from your pamphlet and pasted on a similar sheet.
A photographer of La Fayette photoed the Gas Company’s plant of T & H in this city one evening at 10 o’clock when several lights were burning in room. I had a large one printed and pasted on a piece of bristol board of the same size as this sheet, and put in my original copy.
Footnotes
[1]. The foregoing statement is quoted from Dr Urbitzkany’s work “Electricity in the Service of Man.”
[2]. Gravity does not enter, as a current is generated in lowering A.
[3]. Each segment is really only 115° in length but the brushes are set at a distance from the holder far enough to just reach over the five degree gap by the gauge above described.
[4]. An arc light is a light produced by the use of the voltaic arc, which is made by the sparks passing between two poles of a powerful battery which are brought together and then seperated a little.