Automatic Fuel-Changing Valve. (open access)

Automatic Fuel-Changing Valve.

Patent for Automatic Fuel Changing Valve. The purpose of the invention is to provide a mechanism that switches to another gas supply when the one which is feeding the system runs low.
Date: March 26, 1918
Creator: Connelly, John S.
System: The Portal to Texas History
Oil-Burner. (open access)

Oil-Burner.

Patent for oil burner adapted for using heavy oil (with wide flat flame) for distribution (wide flat flame with adjustable burner tip).
Date: April 26, 1921
Creator: Chadbourne, Vaughn, R.
System: The Portal to Texas History
Process of Making Aromatic Hydrocarbons (open access)

Process of Making Aromatic Hydrocarbons

Patent for an invention that relates to processes of making aromatic hydrocarbons, and comprises a method of producing lower boiling aromatic hydrocarbons.
Date: June 26, 1917
Creator: Alexander, Clive M.
System: The Portal to Texas History
Journal-Box (open access)

Journal-Box

Patent for a journal box that requires no disassembly to be replenished. Illustrations included.
Date: July 26, 1910
Creator: McFadden, John M.
System: The Portal to Texas History
Telephone System. (open access)

Telephone System.

Patent for a telephone system that can be used for long distance calls.
Date: September 26, 1911
Creator: McKibben, Charles W.
System: The Portal to Texas History
Street-Cleaner. (open access)

Street-Cleaner.

Patent for a connection with the suction-head portion of pneumatic street sweepers that provides a dust or dirt disturbing element in the form of a brush or broom.
Date: December 26, 1905
Creator: Duke, Holmes
System: The Portal to Texas History
Crate or Box. (open access)

Crate or Box.

Patent for "a crate or box of knockdown form consisting of a crate or box made of separable sections and bound together by wires and stay-bolts that are loosely set into the sections" (line 11-16) including instructions and illustrations.
Date: September 26, 1905
Creator: Hines, Warren H.
System: The Portal to Texas History