By Joe Dase (Up_miner) on Monday, October 9, 2006 - 12:25 pm:
Richard Barclay-
Yes that is an electric loci. It picks up electric power from the over head lines through the pantograph (the arm on the loci) and is grounded through the rails. The power line is a bare copper wire with about 600v running through it, so you have to be very careful around these. This picture was probably taken around the 1910's to 1920's, back then for locomotive power you only had a few choices, Gasoline, Electric Pantograph (shown), electric battery, and compressed air. Electric battery locomotives need constant recharging and tended to be high priced requiring charging stations, etc. Compressed air locomotives also required charging areas to replenish their on board compressed air tanks, and were not used in the copper country. Finally gasoline engines were really nasty to use underground, and required allot of ventilation. Today electric loci’s like this are still used (only much more modern and efficient), along with Diesel, and battery loci’s. There is even a company that is selling fuel cell powered locomotives.
By Richard L. Barclay (Notroll) on Monday, October 9, 2006 - 03:02 pm:
Joe D.
Thanks for the information, I worked in an old auto plant where we had "open" (uninsulated wire)feeders for 3 phase 440 VAC running the length of the plant. We sat on piles of cardboard not touching anything except the wire we were tapping. Another electrician handed tools to us by placing them in reach on the cardboard and then backing off. We were at whatever potential the wire was while making the tap. I remember talking with a man who had a diesel from the mines in an old Jeep that he'd repowered. He had a piece of brake tubing from the air intake to the cab of the Jeep that he could inject starting fluid directly into the air stream on cold days with ease from the drivers seat.
By Jeff Kalember (Jeffkal) on Monday, October 9, 2006 - 06:04 pm:
I guess OSHA wasn't big back in those days?? YIKES !!
By Joe Dase (Up_miner) on Monday, October 9, 2006 - 07:23 pm:
Another bit of information, this scene was probably photographed at Quincy, not a C&H operation due to the gauge of the track.