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in subjects: "locks"  
Results: 1 - 9

Lock and Key.

Description: Patent for a lock which requires a key that is adjustable and difficult to duplicate in order to prevent lock picking.
Date: June 28, 1921
Creator: Dove, Bascom A.
Partner: UNT Libraries Government Documents Department

Trunk-Strap.

Description: Patent for an "efficient and inexpensive" (lines 13-14) trunk strap, including instructions and illustration. The strap is comprised of adjustable sections, the free ends of which hook into angular plates on the bottom of the trunk.
Date: March 28, 1916
Creator: Hall, James T.
Partner: UNT Libraries Government Documents Department

Lock

Description: Patent for a sliding bolt lock for doors that requires a key to open from the outside.
Date: January 28, 1913
Creator: Van Hoesen, Benjamin
Partner: UNT Libraries Government Documents Department

Switch-Hook

Description: Patent for a switch lock which prevents "splitting" (line 13). Illustrations included.
Date: January 28, 1908
Creator: Tullock, John Thomas
Partner: UNT Libraries Government Documents Department

Nut Lock

Description: Patent for nut lock. Illustration included.
Date: March 28, 1905
Creator: Robertson, George Francis & Rodgers, Archie N.
Partner: UNT Libraries Government Documents Department

Nut Lock.

Description: Patent for a new and improved nut-lock. This design consists in "[a] nut-lock key having a body or wedge portion and a head, and having such head provided at its inner edge with flanges or extensions, the inner edges of the flanges or extensions being separated from the body" (lines 70-74).
Date: June 28, 1887
Creator: French, Stephen H. & Maltby, William J.
Partner: UNT Libraries Government Documents Department

Gate.

Description: Patent for the invention of gate which can be opened inward and outward by certain features such as supporting brackets and a spirally grooved shaft that can rotate between brackets.
Date: August 28, 1906
Creator: Gilbert James Madison
Partner: UNT Libraries Government Documents Department

Permutation-Lock.

Description: Patent for an improvement in permutation-locks with illustrations.
Date: December 28, 1886
Creator: Haley, Auslem Jayne
Partner: UNT Libraries Government Documents Department

Permutation Lock.

Description: Patent for a new and improved combination lock. This design consists of "[a] door having at its edges the sockets formed by ribs and mouths in combination with permutation-disks, seated in said sockets and handles" (lines 5-8).
Date: June 28, 1881
Creator: Sevier, Moses Nimrod
Partner: UNT Libraries Government Documents Department
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