Resource Type

Car Door (open access)

Car Door

Patent for a car-door. The design is to prevent rattling and reduce wear on rail car doors. Illustration included.
Date: September 6, 1910
Creator: Lott, Andrew Gains & Handley, John A., Jr.
System: The Portal to Texas History
Brazing Compound (open access)

Brazing Compound

Patent for a compound for brazing saws and metal such as silver and tin.
Date: September 3, 1912
Creator: Ge Bott, Jay Dell
System: The Portal to Texas History
Band-Saw (open access)

Band-Saw

Patent for improving band-saws for lumber "which can be inexpensively produced, which will not readily crack or otherwise deteriorate in use" (lines 15-18) by "reinforc[ing] the gullets of the teeth that the tendency for cracks to form at this point will be reduced to a minimum" (lines 33-35).
Date: September 28, 1920
Creator: McCormick, Merton H.
System: The Portal to Texas History