UNT Libraries Government Documents Department - 36 Matching Results

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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.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

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.
Item Type: Refine your search to only Patent

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
Item Type: Refine your search to only Patent
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