Resource Type

Improvement in Tool-Holders for Grinding (open access)

Improvement in Tool-Holders for Grinding

New and valuable Improvement in Tool-Holders, which are designed for holding tools in contact with the periphery of a grindstone.
Date: May 2, 1876
Creator: Fisher, Charles N.
System: The Portal to Texas History
Improvement in Brick-Machines. (open access)

Improvement in Brick-Machines.

Patent for an improvement brick machines that includes "an endless chain of molds at the bottom of the press box [...] in combination with a pressing plate and a cut-off plate" (lines 18-22).
Date: November 2, 1875
Creator: Fisher, Charles N.
System: The Portal to Texas History