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Water-Heater.

Description: Patent for a water heater for use in creating steam for oil and gas boilers, which heats faster than previous models.
Date: April 5, 1910
Creator: Hardie, Jeffie Watkins
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Log-Loading Mechanism.

Description: Patent for a machine that hauls and loads logs upon cars from either side of the track, or both sides at once. The machine can easily be transported on a car. The machine "consists, essentially, in a platform of about the length of an ordinary log-car and of a height and width to enable it to span the same, mounted upon which are a steam engine and a boiler and a rotating crane, said platform being provided with pivoted legs for holding it above the track, with pivoted legs for holding it above… more
Date: April 14, 1896
Creator: Fletcher, William Andrew
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Water Craft.

Description: Patent for a "bathing float equipped with propelling means" (lines 10-11) and a "depressible platform combined with ... a diving rudder" to allow the front part of the craft to dive underneath the water (lines 13-15).
Date: April 27, 1915
Creator: Caldwell, John C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Mining Sulfur.

Description: Patent for a method of mining sulfur and other things that have similar melting points that is less expensive and more efficient than previous methods. A machine sprays hot fluid at fissures where the mineral exists, melts it, and carries it away in the stream.
Date: April 27, 1897
Creator: Higgins, Pattillo & Carroll, George W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Mill-Carriage-Wheel Guard.

Description: Patent for a new mill-carriage-wheel guard "to prevent obstruction falling on the wheels or on the [railroad] track, this guard also carries scrapers in front and in rear and on each side of the wheel, whereby the obstructions are scraped off the track." (Lines 23-28) This guard can be used with a wood-working machine carriages and/or rail.” Illustration is included.
Date: April 28, 1891
Creator: Zimmerman, Joseph W.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Stump-Puller.

Description: Patent for an improved design for a stump-puller, using a hoisting derrick and lever to attach to the stump and pull it from the ground.
Date: April 23, 1918
Creator: Weese, Frank
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Electrical Apparatus for Heating Stills, Boilers, and the Like.

Description: Patent for "Improvements in Electrical Apparatus for Heating Stills, Boilers, and the like" (lines 6-8) that uses electricity and includes "a heating element which is not affected by repeated changes in temperature, which is adapted to present a heating surface of large area, which may be raised to a high temperature with a low current, and which is many times more economical in use than metal coils possessing less heat radiating powers" (lines 21-28) including illustrations.
Date: April 9, 1918
Creator: Lorenz, Charles O.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Firearm

Description: Patent for an improved firearm. This firearm that can transform from a rifle to a shotgun using separate barrels but the same stock mechanism.
Date: April 25, 1916
Creator: Burnaman, Joseph H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Shear-Sharpener.

Description: Patent for an improved shear sharpener which has a "new and novel construction by which shears are quickly and properly sharpened, ... whereby a shear is held at the proper bevel while being moved over an oilstone or the like" (lines 12-16), including illustrations.
Date: April 3, 1906
Creator: Jeffrey, James C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Spring-Wheel

Description: Patent for a wheel with a solid tire and elastic support. Illustrations included.
Date: April 4, 1911
Creator: Sharp, John
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pictorial Firmament Machine.

Description: Patent for a hollow globe with a map of the stars and planets positions on one side that has lights on the inside of the globe to project the placement of the stars and planets on a ceiling.
Date: April 4, 1911
Creator: Jones, Oliver Pinkney
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Non-Refillable Bottle.

Description: Patent for a non-refillable bottle with a valve in the neck that opens to let the contents be poured out of the bottle but seals itself if liquid is poured back in the bottle.
Date: April 25, 1911
Creator: Sargent, William H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Meter.

Description: Patent for a meter measuring the flow of liquid with a dial indicating gallons per hour for use in vehicles with internal combustion engines.
Date: April 21, 1914
Creator: Carroll, William G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Door Stop and Lock.

Description: Patent for a door lock and door stop that is operated from the doorknob by having a rod with a bolted door stop box on the bottom inserted into the door frame.
Date: April 9, 1907
Creator: Tatum, Cicero James
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Door-Hanger.

Description: Patent for a door hanger which supports heavy doors, in particular "barn doors, freight car doors, and the like."
Date: April 29, 1913
Creator: Caneavri, Joseph
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Demountable Rim.

Description: Patent for improved demountable rims for automobiles that are easy to mount and detach as well as cheaper and easier to manufacture.
Date: April 27, 1920
Creator: McPherson, Arthur Edison
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Oil-Burner.

Description: Patent for oil burner adapted for using heavy oil (with wide flat flame) for distribution (wide flat flame with adjustable burner tip).
Date: April 26, 1921
Creator: Chadbourne, Vaughn, R.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Clothes-Drier

Description: Patent for a clothes drier that is constructed to surround a stove or heater.
Date: April 18, 1916
Creator: Gallsworthy, Benjamin
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Book-Holding Device

Description: Patent for a book-holding device that will keep books open by holding back turned pages, with illustrations.
Date: April 20, 1920
Creator: Barry, David Redmond
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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