Re: Fifty Gold Mines Mill Car Loader, and Bumping Tables

Posted by Chris Walker on
URL: http://c-sng-discussion-forum.254.s1.nabble.com/Roof-Hatches-Mill-Car-Loader-and-Bumping-Tables-tp19659p19652.html

I can relate to your angst Jim.
DPL L592


It appeared (to me) that the feed chute was propped up to clear when not in use. The rubber conveyor belt system was developed in the early 1890's and was quickly adopted in the iron mining industry; whether that early date was uptaken in Black Hawk I can't say.
DPL X-2051


Mills varied in equipment and process's with new technologies and methods developed all the time.
You mentioned the Wilfly's, there was another more common shaker table used and manufactured right there in the Central City and Black Hawk foundries of McFarland & Co.; the Gilpin Bumping Tables. Does your Prospectus call that out specifically? The USGS only listed "Concentrating Tables" in 1917

Denver Public Library images K-178, X-60606  I'm sure there are others

The 911MetalurgistBlog has numerous Mill machinery images, that may help.
https://www.911metallurgist.com/blog/small-ore-feeders
"Supplying the Mining World"was another book that dealt mainly with the California market.

As for the top of the Orefeeders, I've seen a few variations : see DPL X-63123 for one example.

Maybe Keith Pashina will see this and add something.