UNT Libraries Government Documents Department - 351 Matching Results

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Cultivator

Description: Patent for an improvement in cultivators. This invention is designed to vary the distance between the cultivator-beams. Illustration included.
Date: March 8, 1904
Creator: Eddy, William Lafayette

Trolley Wire Finder

Description: Patent for a trolley wire finder. This invention to improvements in trolley-wire finders, and more particularly to its attachment to trolley-poles and trolley-harps as a means of assistance in guiding the trolley wheel has been shifted from or slipped off said trolley-wire and is of advantage as a means of saving time." (8-16). Illustration included.
Date: March 8, 1904
Creator: Barnhusrt, William

Automatic Fire-Alarm.

Description: Patent for the automatic fire alarm system relates to a fusing wire that reacts to any heat or fire by closing circuit inside of the battery resulting in sounding off the alarm, and thus, improving the fire-alarm system structure.
Date: March 15, 1904
Creator: Fred, Mason K.

Drier Rack

Description: Patent for a drier rack on rail-cars to for drying bricks. Illustration included.
Date: March 15, 1904
Creator: Zilker, Andrew J.; Tidmarsh, Albert L. & Armstrong, Charles J.

Screen

Description: Patent for a screen. This invention is designed to allow for an adjustable screen to over come inequalities and inaccuracies of the window frame. Illustration included.
Date: March 15, 1904
Creator: Pinkham, Delmar D.

Screen

Description: Patent for a screen. This invention comprises a class of window screens with metal frames. Illustration included.
Date: March 15, 1904
Creator: Pinkham, Delmar D.
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