Carpenter's Square. (open access)

Carpenter's Square.

Patent for a carpenter's square, which has a table of rafter cut measurements, a table of measurements in inches, and the standard carpenter's measure table.
Date: October 19, 1909
Creator: Bailey, Louis Eugene
System: The Portal to Texas History
Acetylene-Gas Generator (open access)

Acetylene-Gas Generator

Patent for an acetylene gas generator designed to prevent from being overcharged with carbide. Illustrations included.
Date: November 19, 1912
Creator: Finley, Jesse T.
System: The Portal to Texas History