These machines circulated water through the powder from the ball mills. Gold and silver is heavier than gravel, so it sinks while the junk rock floats.
Short-stack remains of mounts for rod and ball mills, if I was to bet. The concentrator separated junk rock (tails) from the copper and silver ore, to such a point it could be smelted.
The end of one of the scrapped turbines. Judging by the aborted attempt at cutting it in half, the scrappers had some trouble with this one.
When the factory’s production line was up for auction, many parts were removed, crated and labeled with big painted numbers to ease their removal by buyers. Not everything sold, however, so not one dark corner of the factory seems without a pile of dislocated industrial junk.
The end of the heating line allowed glass to cool slowly, and thus be stronger.
Installed in 1904 at the center of the plant, this is one of two batteries of boilers. Being in Oshkosh, heat was very important to keeping labor moving in the cold months.
The giant cog is missing on this machine, which turned a sugar slurry intro crystals. Green-blue stained glass makes the rusty machine glow in aquamarine.
This machine was last overhauled in February 1955, and last turned out Crepe silk, probably dress material.
This belt-run axle ran a turbine (now gone) to blow fresh air into the mine.