Resource Type

States

Hydrocarbon-Burner (open access)

Hydrocarbon-Burner

Patent for invention relates to improvements in hydrocarbon-burners of that class which are employed in apparatus for destroying vegetable growths, such as cactus-plants, for heating asphaltum, for concrete and surface drying, and for other purposes where great heat is required.
Date: February 21, 1900
Creator: Neuendorff, John B.
System: The Portal to Texas History
Nut Cracking Machine (open access)

Nut Cracking Machine

Patent for an industrial pecan cracking machine. Illustrations included.
Date: January 29, 1907
Creator: Gebhardt, William
System: The Portal to Texas History
Mechanical Rectifier. (open access)

Mechanical Rectifier.

Patent for a mechanical rectifier for automobiles. This mechanical rectifier connects with the magneto or generator to turn alternating currents into to direct currents for charging a storage battery while operating the engine.
Date: January 29, 1918
Creator: Winterborne, Arthur William
System: The Portal to Texas History
Dental Clamp. (open access)

Dental Clamp.

Patent for a dental clamp "for holding pins for securement to metallic cover-plates for fillings" (lines 8-10), with illustrations.
Date: January 29, 1901
Creator: Mayes, Robert Martin
System: The Portal to Texas History