sadly enough, I have to tell you that they used the Märklin System of current pickup even in 1879. But..they used DC! it ran on 120..150V picked up from flat iron straps between the rails. A rather tiny picture of the system
Poor Mr. Siemens had not then realized that by changing the commutator connections, you could reverse the motor's direction. So he had Mr. Halske make a reversible gearbox for it.
Last edited on Mon Jul 18th, 2016 10:11 pm by Helmut
Yes, and this one was pure two-rail DC. Kinda touchy, because the running voltage was 180 Volts. It was forbidden to walk on or cross the meter-gauge rails, but horses couldn't read and so some of them found it very shocking indeed.
Strange that a guy as smart as Siemens didn't realize the connection method of reversing his motor--then too, perhaps his brush arrangement was off ''dead center'' for maximum speed and or power, and the motor frame construction wasn't conducive to that much brush movement the other way, along with the connection reversal.
Ever have a large DC motor under no load ''run away'' when a field connection was lost? Got my attention REAL quick!!
____________________ Fix it again, Mr Gates--it still works!"