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Lock-Strike.

Description: Patent for simple and durable lock plates for door frames. This patent is for the keeper plates for door locks and is an invention "for rendering the plate adjustable both vertically and horizontally without detaching the same from the door jamb" (lines 11-14). Includes one illustration page and description.
Date: July 9, 1918
Creator: Russell, Leo
Partner: UNT Libraries Government Documents Department

Cut-Off Lock

Description: Patent for gasoline cutoff for motor vehicles. Allows for vehicle to be still in use or running when left unattended, but will prevent it from being stolen.
Date: January 9, 1917
Creator: Reid, William O.
Partner: UNT Libraries Government Documents Department

Derrick.

Description: Patent for a portable derrick "in which the derrick-frame is rotatable, the same being especially adapted for use in handling bales of cotton, baggage, ice, and other heavy articles." (Lines 14-17) Includes instructions and illustrations.
Date: March 9, 1897
Creator: Stallings, George V.
Partner: UNT Libraries Government Documents Department

Excavating Apparatus

Description: Patent for an "improved excavating apparatus adopted for use in cleaning out tanks, for excavating cellars, for dredging streams, and for other similar purposes; and it consists in the peculiar construction and combination of devices hereinafter fully set forth and claimed." (line 9-14)
Date: June 9, 1903
Creator: Bump, James G.
Partner: UNT Libraries Government Documents Department
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