Resource Type

Saw Gummer and Sharpener (open access)

Saw Gummer and Sharpener

Patent for a sharpener for saw blades designed to increase the strength of the blade by "imparting an oval or rounding cut to the back of the teeth" (lines 15-16). Illustrations included.
Date: January 19, 1909
Creator: Loughridge, John H.
System: The Portal to Texas History