UNT Libraries Government Documents Department - 136 Matching Results

Search Results

Results: 1 - 24 next

Aeroplane.

Description: Patent for an improved rotary airplane engine patterned after the Gnome type with extra blades attached to the engine cylinders.
Date: March 25, 1913
Creator: Decker, Harry R.
Item Type: Refine your search to only Patent

Apparatus for Washing and Scrubbing Gas.

Description: Patent for a washer-scrubber that cleans gas from "tarry matter, ammonia, sulphureted hydrogen, carbonic acid and other impurities" (lines 14-16). The machine divides gas into streams, sprays it with washing liquor, spreads it over reticulated and perforated plates.
Date: March 7, 1893
Creator: Fitzgerald, John H.
Item Type: Refine your search to only Patent

Attachment For Internal-Combustion Motors

Description: Patent for improvements in attachments for internal- combustion motors. The invention is about new and useful improvements to a specific attachment. The two stated objectives are to provide a device adapted for application to the intake pipe on an internal combustion motor and to provide a device which may be locked in a closed position, thereby preventing theft.
Date: March 29, 1921
Creator: Thomas, James Clarence
Item Type: Refine your search to only Patent

Automatic Fire-Alarm System.

Description: Patent for an automatic fire alarm system with a simple arrangement of alarm devices (positioned throughout different rooms) with sound or visual indicators for fire awareness and closer thermal circuits (assisted with spring contact and circuit closer). The automatic fire alarm system will have a more immediate reaction by making an alert noise or visual and propping open the spring contact.
Date: March 16, 1915
Creator: Ammons, John Burck; Ammons, Evander & McGaffey, Otis
Item Type: Refine your search to only Patent

Axle.

Description: Patent for improvement in axles by using a “combination of a bar, two skeins and means for holding the skeins in place upon the bar,” (lines 17-18) includes illustration.
Date: March 31, 1891
Creator: Stewart, John A.
Item Type: Refine your search to only Patent

Bale Ejector for Baling Presses.

Description: Patent for a new and improved ejector for baling presses. This design "consists in the combination, with a baling-press follower having channels with inclines and recesses at their rear ends, of trucks provided with ropes or chains, pulleys, pulley-segments having arms, and stationary arms for drawing the trucks forward, and with ropes or chains, pulleys, and weights for drawing the truck rearward. The trucks have recesses with inclined shoulders in their sides to receive prongs having front an… more
Date: March 24, 1885
Creator: Duval, John Lum
Item Type: Refine your search to only Patent

Boat.

Description: Patent for boat with improvements towards easy movements by using a propeller and rudder. The boat is designed with the user to use their feet to manually move the boat. The boat is designed for hunting or fishing while keeping the hands free.
Date: March 8, 1921
Creator: Greer, John C.
Item Type: Refine your search to only Patent

Cable-Clamp.

Description: Patent for improved cable-clamps for oil drilling and water wells, such that the gripping member will accommodate a variety of cable sizes.
Date: March 29, 1921
Creator: Lacy, Benjamin B.
Item Type: Refine your search to only Patent

Car Wheel.

Description: Patent for a new and improved car wheel. This design "consists in the combination, with a railroad-car axle having wheel-bearings of equal diameter throughout their whole lengths, of wheels the peripheries of which are provided with central flanges dividing each into two treads, the said wheels adapted to be pressed on the said bearings aforesaid, and to be removed therefrom, reversed, and again pressed thereon whenever the wear of the first tread shall render the same necessary" (lines 12-21).
Date: March 25, 1884
Creator: Melvin, Josiah W. & Clute, William H.
Item Type: Refine your search to only Patent

Carbon Holder for Electric Arc Lamps

Description: Patent for improvements made to the carbon holder for electric arc lamps to improve efficiency in replacing the lamps. To improve upon the current design, the patent illustrates and describes a new level clutch system to allow movement, as opposed to the gravity-based design previously implemented.
Date: March 17, 1914
Creator: Lacy, Benjamin Burton & Elrod, Henry E.
Item Type: Refine your search to only Patent

Casket.

Description: Patent for a casket with that is a "reinforced plastic burial casket which shall be of a light construction but having great strength in proportion to its weight" (lines 13 - 16), hermetically sealing the interior and keeping water out, including illustrations.
Date: March 18, 1918
Creator: Cook, Leander P.
Item Type: Refine your search to only Patent

Cheese-Hoop.

Description: Patent for improvements in cheese hoops by creating a suitable frame work to support a wire gauze or net on the sides and the top of the hoop. This protects the cheese when cutting out a portion of the cheese.
Date: March 30, 1915
Creator: Cain, William R. & Cain, John R.
Item Type: Refine your search to only Patent
Back to Top of Screen