Resource Type

Driving Mechanism (open access)

Driving Mechanism

Patent for a driving mechanism. The object of the invention is to provide a simple and efficient mechanism for transforming reciprocatory motion into rotary motion. It can be adapted in order to connect to other mechanisms.
Date: January 16, 1906
Creator: Allison, Andrew J.
System: The Portal to Texas History
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
Cultivator (open access)

Cultivator

Patent for a cultivator. Illustration included.
Date: January 15, 1907
Creator: Nicholson, Matthew Harris & Rosenbaum, Eugene
System: The Portal to Texas History