This picture shows the Bonebrake Manufracturing Co. at Tonopah on the Goldfield & Hangtown RR. Everything in the picture was scratch-built, except for the trucks, couplers, and figures.
Here's a Tracklaying Machine I made using the bonus brass etching pieces and instructions in Sheepscot Scale Models' pile driver kit. Parts were mostly gussets, connecting lugs, reinforcing for the overhead boom, ladder, etc. Most of the rest of it is Plastruct shapes and thingies. The power plant came from a toy model tractor.
Wow Railphotog, that's an incredible model. Is there really a prototype for that thing? Since the whole beam seems to be supported by tension in the cables, I think Buckminster Fuller would recognize that engineering as a 'Tensegrity' structure. Your model would be worth a closer look at the details.
I don't know if there is a prototype of this actual model, you'd have to ask Sheepscot Scale Models. But I have seen quite a few photos of prototype track laying machines. Many are quite a bit more elaborate, with a coveyor type system on one side that would bring ties to the head of the car from a gondola farther back. Some of the cars have a real home made look, as if they were designed on the spot. I saw another car of this type at my first NMRA National convention in Boston way back in 1986 and think it was more complicated. I remember it because I was wondering how it was transported to the show.
Thanks for that photo. There is so much more information in that photo besides the track machine. The workers, the rugged environment, and the timberwork all tell a narative that is modestly heroic.
Bob, you did quite a good model of that without having seen a prototype up close. Something like that would save a lot of heavy lifting for the crew, not to mention bad backs.
Really good to see that proto photo. It's amazing that some of these things work. My first thought would have been, "No Way". Having seen some other things that I didn't believe I have learned to reserve judgement for a while. [B)] Great looking model but you may want to keep that photo handy just to win a few bets.
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