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The ultimate 'critter'?


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I came across this when looking at photographs of Milwaukee Road operations in Montana.

 

http://www.flyerguide.net/viewphoto.php?id=361108&nseq=0

 

It was built to move electric locos around the roundhouse at Deer Lodge, apparently using a truck from a diesel locomotive as a base. The roundhouse itself did not have overhead wires, so the mainline locos could not move themselves - and hence the means of power supply to the critter!

 

Here it is, doing what it was designed for:

 

http://www.http://www.smugmug.c...54_P4Tc6Dn-A-LB

 

I wish the photographer had managed to get all of the 'Little Joe' in the picture!

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I'd like to have seen the "extension cord"!!!!

Thanks for posting it!

 

Best, Pete.

Health and Safety types should look away...

 

The one we used at the trolley museum I volunteered at was about one inch diameter (including the heavy rubber insulation). I was never very happy when we had to use it in wet conditions because it was pretty old and the insulation looked a bit dodgy in places. It did the job, though you had to be very careful where it ran, especially when reversing as that's usually where the scope for running it over lay.

Attaching it to the overhead was pretty rudimentary: it was attached to a long wooden stick with a hook on the end of it. The other end had a similar stick with a hook, that was hooked on to the trolley pole allowing the car to be operated in areas where there was no overhead line. The cable was a fair length too.

I vaguely remember it getting severed in some way (and it may have been at a repair from previous accidents). It was dark, the breaker in the substation didn't blow, and one of our less enlightened volunteers was fumbling around on the ground trying to locate the two ends. Somebody then observed that it might be a good idea to unhook the thing from the overhead before he found it.

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Highpeak's example is certainly not unique, they have a similar "stinger" in Yakima for driving trolleys off the wire. I have a video of me opening the controller on a Porto trolley and burning out one of the connectors where it was repaired, and ended up with the live end swinging precariously over a rail-I'm sure it would have welded the two together before the breaker tripped.

 

Kennecott Copper used GE Steeplecabs with an inbuilt extension cord for similar off the wire antics.

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