UNT Libraries Government Documents Department - 128 Matching Results

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Filing-Cabinet.

Description: Patent for a filing cabinet that allows for the easy removal of the contents and attaches to other filing cabinets to create a larger cabinet.
Date: May 4, 1909
Creator: Atkinson, Joseph J.
Item Type: Refine your search to only Patent

Doll.

Description: Patent for a doll that will be durable and attractive by constructing a rigid form of the human bust and shoulders which serves to make these parts more durable, including illustrations and instructions.
Date: May 7, 1912
Creator: Baker, Marie K.
Item Type: Refine your search to only Patent

Combined Rubber Dam and Tooth Backing Punch

Description: Patent for a combined rubber dam and tooth-backing punch. "This invention relates to new and useful improvement in dental instruments and more particularly it has references to a punch for forming holes accurately in the backing which is used on teeth in construction of bridges, plates, and cognate work" (line 12-17). Illustration included.
Date: May 19, 1908
Creator: Bell, Harry M.
Item Type: Refine your search to only Patent

Hose-Clamp

Description: Patent for "certain new and useful Improvements in Hose-Clamps" (lines 5-6). "It is the object of this invention to provide a clamp which is provided with yieldable slips, which securely clamp the hose to prevent the separation of the hose from the nipple..." (lines 30-34).
Date: May 21, 1918
Creator: Bennett, Clarence D.
Item Type: Refine your search to only Patent

Attachment for Cameras.

Description: Patent for an improved camera attachment for adding titles to film that prevents the film from being exposed to light except when the title is photographed, with illustrations.
Date: May 15, 1917
Creator: Bretz, George W.; Lowry, Claud A.; Wood, Oscar O.; Wade, J. H.; Pirtle, P. R.; Jones, F. E. et al.
Item Type: Refine your search to only Patent

Car Door.

Description: Patent for a new and improved door for railroad cars. This design consists in "[t]he combination, with the car having the door-opening with its upper and lower edges parallel and inclined upward and inward, and the bolt-keeper secured to the sill of the car, of the door having correspondingly-inclined upper and lower edges, the guide-staple and fulcrum-bracket secured to the door at proper points, the operating-lever pivoted to said bracket, the link-rods and bolt, the [other] link-rod pivoted … more
Date: May 28, 1889
Creator: Charlton, James
Item Type: Refine your search to only Patent

Door Hanger.

Description: Patent for a new and improved hanger for doors and gates. This design consists in "the brackets secured to a door or gate way at intervals apart and having the horizontal supporting arms, the track made of angle-iron and having the horizontal treadway secured to the arms of the brackets, and the upwardly-extending flange at the outer edge of the treadway, and the hangers secured to the door or gate and having their upper portions bent to form an inverted U-shaped yoke or frame, and rollers jour… more
Date: May 17, 1887
Creator: Charlton, James
Item Type: Refine your search to only Patent

Gas-Burner.

Description: Patent for gas burners that are made for water heaters to prevent "back firing" by building them so that they can be placed on the side of the heater rather than underneath it, so that liquid does not fall on the burner.
Date: May 23, 1916
Creator: Cochran, Harry A.
Item Type: Refine your search to only Patent

Pump-Piston.

Description: Patent for an improved pump piston used to pump oil from deep wells. The main improvement in this piston is that it is less susceptible to damage from sand or sediment by keeping sediment out of the piston valve, thus preventing it from accruing any long term damage that may render the piston irreparable. This design is also capable of fixing any wear due to sand or grit without removing the piston from the well.
Date: May 4, 1920
Creator: Coulson, William J.
Item Type: Refine your search to only Patent
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