8 Matching Results

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in subjects: "locks"  
Results: 1 - 8

Improvement in Door-Securers.

Description: Patent for a new and improved safety-locks for doors which consists of only three parts: a screw with sharp points, a nut, and a guard pivoted to the nut. It includes illustrations.
Date: January 21, 1879
Creator: Hine, Miller J.
Partner: UNT Libraries Government Documents Department

Locking Device for Motor-Vehicles.

Description: Patent for a simple, inexpensive locking mechanism that would prevent an automobile from being used in an unauthorized way, while still allowing the vehicle to be manually moved or towed if needed, including illustrations.
Date: June 21, 1921
Creator: Harris, Robert E.
Partner: UNT Libraries Government Documents Department

Window-Lock.

Description: Patent for locking windows in place at various elevations with illustrations.
Date: January 21, 1908
Creator: Kinsey, Columbus M.
Partner: UNT Libraries Government Documents Department

Lock.

Description: Patent for a new and improved lock which includes "certain novel constructions, combinations, and arrangement of parts" (lines 11-13) as well as illustrations and instructions.
Date: September 21, 1897
Creator: Peterson, John J.
Partner: UNT Libraries Government Documents Department

Lock

Description: Patent for a lock. Illustrations included.
Date: April 21, 1908
Creator: Winslow, Walter W.
Partner: UNT Libraries Government Documents Department

Lock

Description: Patent for a lock. Illustrations included.
Date: April 21, 1908
Creator: Winslow, Walter W.
Partner: UNT Libraries Government Documents Department

Switch Stand and Lock

Description: Patent for an improvement in switch-stand and locks, being that they cannot be picked or tampered with.
Date: July 21, 1914
Creator: Maupin, John D.; Allen, Harry E. & Baldwin, Springfield
Partner: UNT Libraries Government Documents Department

Safety-Lock For Doors and the Like.

Description: Patent for improvements in door safety locks. Adding this simple and easy to manufacture lock allows a door to be locked from the inside, making the door inaccessible to anyone on the outside.
Date: June 21, 1921
Creator: Kless, Herman L.
Partner: UNT Libraries Government Documents Department
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