UNT Libraries Government Documents Department - 4 Matching Results

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Motor-Vehicle Heater.

Description: 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.
Item Type: Refine your search to only Patent

Safe Lock

Description: 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
Item Type: Refine your search to only Patent

Spring Wheel

Description: 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
Item Type: Refine your search to only Patent
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