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in subjects: "locks"  
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Latch.

Description: Patent for certain new and useful improvements in latches, including instructions and illustrations.
Date: November 29, 1898
Creator: Lott, William Edward
Partner: UNT Libraries Government Documents Department

Nut-Lock.

Description: Patent for improvements in nut-locks, "wherein a ratchet and pawl is employed to prevent retrograde movement of the nut after it has once been turned up into the desired position." (Lines 12-15) Includes instructions and illustrations.
Date: January 12, 1892
Creator: Magee, William L.
Partner: UNT Libraries Government Documents Department

Nut-Lock.

Description: Patent for an improved, simple, and inexpensive nut lock that can be easily used and removed. It lengthens the life of the bolt. The invention is "a bolt with a longitudinal groove or slot in which fits a tongue or lug on a washer which is provided with a notch or notches into which may be forced a portion or portions of a washer made of bendable material, opposite portions of which are designed to be forced into notches in the faces of the nut and thus the nut and both washers are bound or hel… more
Date: June 6, 1893
Creator: Woods, John B.
Partner: UNT Libraries Government Documents Department
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