Bolster-Standard. (open access)

Bolster-Standard.

Patent for a durable, simple, and easily applied bolster-standard meant to be secured to the bolster and does not allow the bolster to split or crack.
Date: July 30, 1895
Creator: Bennett, Thomas H.
System: The Portal to Texas History
Process of Treating Slag and Furnace Therefor. (open access)

Process of Treating Slag and Furnace Therefor.

Patent for a process of treating slag and furnace therefore. It has an improved method for separates melted metals produced during smelting and extracting the precious metals from slag. The richer matte and base-bullion run off separately and into separate taps.
Date: August 20, 1895
Creator: van Cleve, Charles M. & Rhodes, Robert D.
System: The Portal to Texas History