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Crank
Patent for a crank to provide a starter for an internal combustion engine. If the engine backfires, this crank will ensure that the operator will not be injured.
Date:
November 25, 1919
Creator:
Bates, Samuel F.
System:
The Portal to Texas History
Mortising Machine.
Patent for a new mortising-machine attachment for lathes or boring mills, designed to securely attach a bracket, hollow chisel, and boring bit to the machine, allowing for adjustable positioning to match the machine's work support.
Date:
October 25, 1921
Creator:
Andrews, Alluwee C.
System:
The Portal to Texas History
Triple Valve For Air-Brakes
Allows the "auxiliary reservoir to be recharged without releasing the brakes" (lines 11-13) improving the triple valve in air-brake systems.
Date:
August 25, 1903
Creator:
Robinson, David M.
System:
The Portal to Texas History
Horse-Power Machines.
Patent for new and improved cog-wheel designed to improve horse-powered machines that are used in "flouring mills, and agricultural, and other machines" (lines 16-17) including instructions and illustrations.
Date:
May 25, 1880
Creator:
Hooker, William H.
System:
The Portal to Texas History