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in subjects: "locks"  
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Locking and Operating System for Jail-Doors.

Description: Patent for a new way to operate and lock jail doors "whereby each and every door in the system can be locked, unlocked and operated altogether, or any one, two or more doors can be locked, unlocked and operated without disturbing the other doors of the system" (lines 11-16), including illustrations.
Date: June 11, 1918
Creator: Youngblood, David Franklin
Partner: UNT Libraries Government Documents Department

Nut Lock

Description: Patent for a nut lock. Illustration included.
Date: June 11, 1907
Creator: Broadfoot, Jacob O.
Partner: UNT Libraries Government Documents Department

Gate Latch

Description: Patent for "improvements in latches for gates, doors, and the like." (lines 12-13) This latch "may be conveniently operated from either side of the door and may be locked against operation." (lines 15-17)
Date: August 11, 1903
Creator: Carter, Hiram Claborn
Partner: UNT Libraries Government Documents Department

Gate

Description: Patent for a gate that can be opened or closed from a remote point, and can be locked with a latch. Illustrations included.
Date: June 11, 1907
Creator: Rogers, Frederick S.
Partner: UNT Libraries Government Documents Department

Seal-Padlock

Description: Patent for a seal padlock, designed to "render it absolutely impossible to gain access to the interior of the lock" (lines 12-14). Illustrations included.
Date: June 11, 1907
Creator: Abrams, Frederic
Partner: UNT Libraries Government Documents Department
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