UNT Libraries Government Documents Department - 133 Matching Results

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Water Wheel

Description: Patent for an "iron water-wheel made in sections, which may be readily taken apart for convenience and transportation" (Lines 10-12).
Date: May 12, 1885
Creator: Dunn, William Washington
Item Type: Refine your search to only Patent

Impact-Motor.

Description: Patent for a rotary motor "to provide a simple and efficient motor particularly adaptable for vehicle propulsion and which when once started in either direction will automatically arrange its valve to continue that direction of rotation" (lines 13-18), including illustrations.
Date: November 12, 1901
Creator: Hahn, Carl
Item Type: Refine your search to only Patent

Saw-Gummer.

Description: Patent for saw gummers with simplified operation and adjustable attachments, enabling quicker gumming or sharpening of gin or metal saws, such as those in a cotton gin.
Date: August 12, 1919
Creator: Helm, Clyde D.
Item Type: Refine your search to only Patent

Sash-Fastener.

Description: Patent for improving the construction of sash fasteners making them simpler and inexpensive. These mounted window sash fasteners are capable of locking the window in it's closed position and supporting it in an open position at "any desired adjustment" (line 17).
Date: November 12, 1901
Creator: James, Will S.
Item Type: Refine your search to only Patent

Beveled-Rule-Molding Device

Description: Patent for improvements in matrices and devices which are similar to matrices that are used in linotype and intertype or line casting machines. These devices consist of a rule molding mechanism with a bar having the general contour of a matrix. A channel exists in one side with under cut edges. These objects can be operated by matrix molding devices for forming rules for printing purposes.
Date: May 12, 1914
Creator: Markwell, Andrew E.
Item Type: Refine your search to only Patent

Matrix-Molding Device

Description: Patent for improvements to matrix-molding devices, "and the object is to provide simple devices which are carried by the matrices or molding devices for forming rule retaining members which have angular grooves" (lines 14-17).
Date: September 12, 1913
Creator: Markwell, Andrew E.
Item Type: Refine your search to only Patent

Piano

Description: Patent for an invention related to instruments with sounding-boards, particularly upright pianos, that allows for volume control.
Date: April 12, 1910
Creator: Norcross, Levi Watson
Item Type: Refine your search to only Patent

Improvement to Lifting-Jacks

Description: Patent for the improvement of the lifting jack which allows the user to "lower the lifting bar by a step-by-step movement as well as to elevate the lifting bar by such a movement (lines 12-14). Includes instructions and illustration."
Date: January 12, 1915
Creator: Parker, Charles W. & Wittliff, Theodore H.
Item Type: Refine your search to only Patent

Animal-Feed Device

Description: Patent for an animal feed device that is collapsible and that can be suspended from fences, vehicle wheels, other structures, the ground, or the animal itself. (lines 10-15
Date: December 12, 1905
Creator: Russell, George Washington
Item Type: Refine your search to only Patent

Watchmaker's Tool.

Description: Patent for a watchmaker's tool that removes "the collet and hair spring of a watch from the balance wheel arbor, without injuring the hair spring of the watch and at the same time holding the balance wheel secure against accident or injury" (lines 10-14).
Date: February 12, 1895
Creator: Seyfriedt, William C.
Item Type: Refine your search to only Patent
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