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Improvements in Sash-Lock

Patent for an improvement on sash locks or fasteners for a window frame to allow two sashes to be controlled by one sash.

Date: June 16, 1903

Creator: Miller, John D.

Partner: UNT Libraries Government Documents Department

Wireless-Telephone System.

Patent for a wireless telephone system that does not require the user to flip a switch in between receiving and sending a message.

Date: June 27, 1911

Creator: Johnson, Maurice Bernays

Partner: UNT Libraries Government Documents Department

Turnstile.

Patent for a new turnstile design for use in train cars, "especially adapted for use in so called " pay-as-you-enter " cars." (lines 11-12) including instructions and illustrations.

Date: June 9, 1914

Creator: Lohrberg, Leopold W.

Partner: UNT Libraries Government Documents Department

Vehicle Body Suspension.

Patent for swing suspension for trucks to absorb shocks sustained by the chassis.

Date: June 20, 1919

Creator: Harper, William David

Partner: UNT Libraries Government Documents Department

Lock-Washer.

Patent for "an improved lock washer especially adapted for locking nuts" (lines 10-11) that was designed to "be interposed between the nut and a member to be clamped by the nut" (lines 14-16).

Date: June 8, 1920

Creator: Medbery, Clinton A.

Partner: UNT Libraries Government Documents Department

Tube-Expander

Patent for a tube expander for setting boiler tubes in the holes in the tube-sheet, which provides simplicity and improvement of its construction.

Date: June 17, 1919

Creator: Walsh, Emmet

Partner: UNT Libraries Government Documents Department

Locking and Operating System for Jail-Doors.

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

Machine for making mattresses.

Patent for a machine for making mattresses with compressed lint-cotton inserted into a tick.

Date: June 4, 1901

Creator: Morgan, John W.

Partner: UNT Libraries Government Documents Department

Wheel.

Patent for a new and useful wheel, including instructions and illustrations.

Date: June 7, 1898

Creator: Millen, George

Partner: UNT Libraries Government Documents Department

Lawn-Trimming Machine

Patent for a lawn-trimming machine designed to trim the edges of lawns or other grass plots. Illustrations included.

Date: June 11, 1907

Creator: Cady, John P.

Partner: UNT Libraries Government Documents Department

Lock for Toy Banks

Patent for a lock for toy banks. Illustrations included.

Date: June 22, 1909

Creator: Hansen, Christian

Partner: UNT Libraries Government Documents Department

Well-Boring Machine.

Patent for improved mechanism of well-boring machine in which it “composed of as few parts as possible, which will effectively grip and rotate a drill-rod or pipe containing coupling and reducing - nipples, or composed of length or sections of varying diameters without impeding the end movement or deranging the central position of said drill-rod or pipe, and without delaying the progress of the machine, to adjust or change any part or parts thereof, also to improve the means for gripping the dr… more

Date: June 17, 1902

Creator: Woods, Frank J.

Partner: UNT Libraries Government Documents Department

Improvement in Bag-Fasteners.

Patent for "a new and useful improvement in the manner of fastening bags and attaching labels or shipping directions" (lines 4-7) including illustrations.

Date: June 17, 1879

Creator: Terrell, Will

Partner: UNT Libraries Government Documents Department

Plate for Secondary Batteries.

Patent filed by Joseph O. Luthy, a citizen of the Republic of Switzerland, residing in the city of San Antonio, concerning new and useful improvements in placates for secondary batteries. Figures page 1. Description of patent begins page 2.

Date: June 15, 1915

Creator: Luthy, Joseph O.

Partner: UNT Libraries Government Documents Department

Tortilla-Making Machine.

Patent for a machine for making tortillas "easily, conveniently and rapidly" (lines 13-14), including illustrations.

Date: June 12, 1917

Creator: Gutiérrez, Refugio

Partner: UNT Libraries Government Documents Department

Nut-Lock.

Patent for a nut lock for railroad tracks, which will prevent rail bolts from unscrewing.

Date: June 8, 1909

Creator: Mills, Thomas M.

Partner: UNT Libraries Government Documents Department

Tool for Truing and Dressing Commutators.

Patent for a tool "for truing and dressing the commutators of dynamo motors... especially designed for truing and dressing the commutators of motors employed for propelling cars" (lines 9-14).

Date: June 25, 1907

Creator: Frick, Claus Henry

Partner: UNT Libraries Government Documents Department