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Motor-Vehicle Heater.
Patent for improvements for a motor vehicle heater that "convey the exhaust gases from the muffler to a container capable of inflation and to inflate said container whereby a heating or warming element for the passengers of the car is provided" (lines 10-14).
Date:
June 17, 1919
Creator:
Barrett, Eli B.
System:
The Portal to Texas History
Safe Lock
Patent for providing "a means which will necessitate the operation of a series of setting devices before the several bolts can be moved to unlock the door". (lines 11-14).
Date:
June 13, 1918
Creator:
Harris, William J. B. of Bonham, TX
System:
The Portal to Texas History
Sanitary Cleaner for Bed-Springs.
Patent for a new invention to more effectively clean bed springs, including illustrations.
Date:
June 16, 1914
Creator:
Gambill, Mary I.
System:
The Portal to Texas History
Spring Wheel
Patent for a form of tire designed in such a way to avoid the dangers of a punctured tire. This is done by an arrangement of crossing springs used to support the outer wall of the tire instead of inflatable medium.
Date:
June 3, 1913
Creator:
Dwiggins, R, Sam & Kelley, E, Lawrence
System:
The Portal to Texas History