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in subjects: "locking mechanisms"  
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Switch-Locking Device.

Description: Patent for improvements in switch locking devices. Design intends to increase efficiency and ease of operability, as well as providing "means for retaining the latch in inoperative position" when chosen (lines 23-25).
Date: March 11, 1919
Creator: McCormick, William C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

End-Gate Lock.

Description: Patent for "a fastening for end-gates of wagons and the like, the arrangement of parts being such as to permit the end-gate being always held in a locked position until it is desired to lower or raise the same." (lines 11-15).
Date: August 9, 1898
Creator: Murray, Nicholas Charles
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Combined Rat and Mouse Trap.

Description: Patent for a cheaper and more effective trap that displays live bait but is unreachable to animals. The trap will make it "impossible for animals to escape after they have been captured" (lines 26-28), including illustrations.
Date: March 7, 1916
Creator: Bevers, William S., Jr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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