UNT Libraries Government Documents Department - 36 Matching Results

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Ant Trap

Description: Patent for an ant trap designed as a ring-shaped trough and which allows for the drainage of rainwater through a pipe fitted with a porous plug. Both walls of the trough are capped with inward and downward curved flanges.
Date: August 1, 1922
Creator: Scrivner, Jefferson Davis

CANAL-GATE.

Description: Patent for an improvement to canal-gates that is "a simple and comparatively inexpensive contrivance for receiving a handle of the shank of a handle which is attached to the lock or gate" (lines 18-22) including an illustration.
Date: March 9, 1920
Creator: Perry, Charles Franklin

Attachment for Tractors.

Description: Patent for attachments in tractors. "This invention relates to tractors and has for its object the provision of means where by when the front axle and wheels of the tractor rise caused by rearing of the tractor, the clutch will be automatically disconnected and remain so until the front wheels of the tractor descend again into engagement with the ground. An important and more specific object is the provision in a tractor of a front axle formed n sections pivotally connected, one section being c… more
Date: August 30, 1921
Creator: Cholick, Joseph John

Knife-Sharpener.

Description: Patent for improvements in knife-sharpeners that can be clamped onto a table or similar object, including an illustration. The device has also been "adapted for use in connection with a pair of bits or cutters having convex cutting edges disposed in confronting relation, the bits or cutters being capable of adjustment to present new portions of the respective cutting edges for effective work as the occasion requires" (lines 17-23).
Date: February 5, 1918
Creator: Kirlin, Wiliam B.

Irrigation Device.

Description: Patent for a new and improved irrigation device consisting of a swivel joint that can be quickly moved to start or stop the flow of water. The device is designed to be water tight and easily manipulated.
Date: October 8, 1918
Creator: Howard, Charles Samuel

Tape-Measure.

Description: Patent for a tape measure with a claw on one end that the user can affix to a surface to hold one end of the measuring tape and aid in the measuring process.
Date: December 4, 1917
Creator: Anderson, Andrew E.

Geometrical Instrument

Description: Patent for a geometrical instrument. This instrument is used to create a straight edge with pivoted blades, like a protractor, to be used for laying protracted angles, etc.
Date: March 26, 1918
Creator: Anderson, Andrew E.

Demountable-Rim-Fasting Means.

Description: Patent for Improvement to Demoutable-Rim-Fastening Means. This device will hold the rim in place.
Date: July 20, 1920
Creator: Spero, David Lawrence

Automatic drain-valve.

Description: Patent for an improved automatic drain valve used in air braking systems.
Date: April 21, 1914
Creator: Huddleston, William R.

Antiseptic Shaving Outfit.

Description: Patent for a more compact and improved version of an antiseptic shaving outfit, including illustrations.
Date: January 2, 1917
Creator: Braunstein, Aron

Elevated Drafting Rule

Description: Patent for instrument used in drafting and ruling straight lines.
Date: January 30, 1917
Creator: Anderson, Andrew E.

Self-Filling Tire

Description: Patent for a product that automatically inflates automobile tires with the motion and weight of the moving vehicle, with the help of a piston that is not driven by springs.
Date: April 20, 1915
Creator: Fernandez, Jose

Handle-Securing Device.

Description: Patent for a new and improved mechanism for simply and easily "securing handles on hoes, mattocks, picks, and other implements of the kind in which the handle has an enlarged end where it passes through and sets in the eye of the tool" (lines 10-14), including illustrations.
Date: August 29, 1916
Creator: Harvey, Harry W.

Hair-Pin.

Description: Patent for a hairpin which consists of multiple parts made to grip the hair while secured in place with illustrations included.
Date: July 22, 1913
Creator: Jacobsen, Herbert

Saw-Handle.

Description: Patent for Saw-Handle that blows air out of its handle to clear the saw's teeth of dust.
Date: July 24, 1917
Creator: Whitworth, John Luther

Buggy-Shackle

Description: Patent for a buggy shackle which "has a spring actuated coupling pin, and means for holding the pin in uncoupled position while the thills are being attached" (lines 10-13).
Date: August 2, 1910
Creator: Perry, Charles Franklin

Corn-Flour and Process of Producing the Same.

Description: Patent for a new type of corn tortilla flour and the process for cooking the corn in lime water, producing a flour that keeps as long as wheat flour and eliminates the need for grinding before use.
Date: July 24, 1906
Creator: Wreford, Samuel Phippen & Besteiro, Martin

Machine for Exterminating Insects.

Description: Patent for a machine for exterminating insects on plants by sucking them off the plants and then dropping them into a fire chamber in the machine.
Date: June 27, 1911
Creator: Hill, Leonidas C.

Vehicle Wheel

Description: Patent for a vehicle wheel. Illustration included.
Date: October 26, 1909
Creator: Hartman, Emil

Invalid's Chair.

Description: Patent for a new and improved invalid's chair. This design "relates to an improvement in chairs which will adapt them to the use of invalids and children" (line 7-9).
Date: January 18, 1898
Creator: Yznaga, Juana G.

Water-Elevator.

Description: Patent for a water elevator that is composed of a band with buckets attached that goes around the structure in a circle delivering water.
Date: September 5, 1911
Creator: Thompson, James W. & Hathaway, James F.

Oil-Separator.

Description: Patent for the invention of a new oil separator with all its descriptions.
Date: March 12, 1912
Creator: Latham, Reginald W.

Protecting Shores.

Description: Patent for certain new and useful improvements in protections for river banks and coast washing, including instructions and illustrations.
Date: September 27, 1898
Creator: Brooks, Samuel W.
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