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

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

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

Automatic drain-valve.

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

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

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

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

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

Elevated Drafting Rule

Description: Patent for instrument used in drafting and ruling straight lines.
Date: January 30, 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.

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

Hand-Transplanter

Description: Patent for a "manually operated device, adapted for the manipulation of small plants, during the transplanting of the same, and the thinning out of closely growing plants" (lines 9-13). Includes instructions and illustrations.
Date: November 7, 1911
Creator: Thompson, James W.

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.

Improvement in Billiard-Cushions.

Description: Patent for improvement in billiard-cushions. Patent for removable billiard table cushion.
Date: July 10, 1877
Creator: Mansur, John S.

Improvement in Spike-Extractors.

Description: Patent for "an improvement in the class of nail-extractors in which a gripe or grapple formed of pendent springs or hinged jaws is employed." (lines 7-10) including instructions and illustrations.
Date: September 29, 1874
Creator: Devine, William

Improvement in Velocipedes

Description: Patent for the improvement of Velocipedes. The improvement consists of a new and novel combination and arrangement of propelling power, due to the weight of the body, which may be aided by the muscular force thereof and guiding apparatus.
Date: February 13, 1872
Creator: Maltby, Henry A.

Improvements in Velocipedes.

Description: Patent for the improvement of velocipedes. Improvements combine foot and band propelling apparatus with guiding apparatus.
Date: December 13, 1870
Creator: Maltby, Henry

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.

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

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.

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.
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