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Lock.

Description: Patent for a permutation lock with illustrations. The combination on the lock can be changed an infinite number of times by the user.
Date: October 7, 1902
Creator: Nickey, Oscar E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Vehicle-Wheel.

Description: Patent for a vehicle wheel that improves on automobile pneumatic tires by having a "plurality of springs," with a rigid inner rim and an outer rim connected with these springs so as to absorb the force of any shock. The design is strong, simple, and durable.
Date: January 13, 1914
Creator: Wylie, Alfred R. & Wright, James G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spark-Arrester.

Description: Patent for improvements in spark-arresters for locomotives in “which [it] will prevent the sparks and cinders from falling upon the train and upon surrounding lands and buildings;” (lines 10-12) by using a combination of a curved smoke-stack, a cinder-box, conducting pipes and an ash pen. Illustration is included.
Date: April 7, 1891
Creator: Hadlock, Edson J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Refillable Multiple Fuse Plug

Description: Patent for a fuse plug that can be used multiple time without chargine, and includes several arms in its interior that allows for usage even if on fuse arm is blown, it can simply be moved to the next one.
Date: October 10, 1916
Creator: Berry, Thomas O.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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