arc headlights and dynamos

Posted by John Greenly on
URL: http://c-sng-discussion-forum.254.s1.nabble.com/arc-headlights-and-dynamos-tp15165.html

I'm puzzled by the fact that many photos in the first decade 1900-1910 show engines with what I have thought are arc headlights, but with no visible dynamo or generator, at least not mounted on the boiler top.  Here are a couple of examples, first Jim's favorite Cooke, #47, in 1910 (Pictorial Supplement)



and second, engine 8 in about 1901 (also Pictorial Supplement):



In these two, as well as other photos, I can also see no cable or other connection to the headlight.  How were these powered?

Cheers,
John