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Adjustable Book-Cover.

Description: Patent for adjustable book covers. More protection with use of thicker paper, with adjustable feature is highly important as is also the slit and tongue.
Date: July 1, 1919
Creator: Walraven, Albert T.
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Partner: UNT Libraries Government Documents Department

Adjustable Book Support.

Description: Patent for a new and improved book rest. This design consists "of an upright pivoted in a support or base, a sliding lower supporting cross-bar, an upper sliding supporting-bar, both bars having sockets upon their rear sides sliding upon the upright and provided with set-screws, and leaf-clamps consisting of a piece of spring doubled at one end to form slides sliding upon the arms of the upper cross-bar, forming curved yielding portions, forming transverse eyes at the other ends, having flat bl… more
Date: November 25, 1884
Creator: Johnson, William Oscar
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Partner: UNT Libraries Government Documents Department

Adjustable Crib or Bed.

Description: Patent for improvements in Adjustable Cribs or Beds for children to sit beside the bed of the mother or guardian of the child. Made to be "easily and quickly attachable to or connected with any make of" (lines 17-19) the adult's bed "so that the mattresses of the bed and crib will be perfectly even or flush, without space...between them" (lines 20-22). Includes illustrations.
Date: November 25, 1919
Creator: Rece, Frank S.
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Partner: UNT Libraries Government Documents Department

Adjustable Device for Dressing Down Bearings

Description: Patent for a tool that dresses down bearings. Railroad engine journals and their corresponding bearings show wear over time. When replacing bearings into such a journal, without adaptation of the bearing there will be an improper fit, resulting in "hot journals" or "hot boxes". This tool adapts a bearing to a proper fit for the journal into which it will be installed.
Date: December 12, 1922
Creator: Mitchell, William A.
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Partner: UNT Libraries Government Documents Department

Adjustable End Die.

Description: Patent for improvements to adjustable end dies. These improvements allow convenient rethreading of bolts while it is engaged with an object.
Date: February 8, 1921
Creator: Wright, John G.
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Partner: UNT Libraries Government Documents Department

Adjustable Fire Guard and Screen.

Description: Patent for a new and improved fireplace screen. This design "is to provide a simple and efficient device which may be suspended in front of open fireplaces or grates for the purpose of preventing the frequent and sometimes fatal accidents which are directly due to the absence of reliable safe-guards. The invention consists of a series of shields or plates of suitable size and material, which are so connected that when not in use they may be easily drawn upward in succession side by side and com… more
Date: May 3, 1892
Creator: Gibson, Nathaniel B.
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Partner: UNT Libraries Government Documents Department

Adjustable Footrest.

Description: Patent for an improved, adjustable foot rest that allows for more adjustments and range of motion "to any desired position for the comfort of the user" (lines 13-14), and is secured to the floor.
Date: April 20, 1920
Creator: Kingsford, Walter E.
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Partner: UNT Libraries Government Documents Department

Adjustable Friction-Grab for Fishing-Tools.

Description: Patent for friction grabs for fishing tools in well drilling operations that can be "easily adjusted for different sized holes or wells and which will be automatically adjusted and the grabs automatically closed on the object to be removed" (lines 14-17).
Date: May 24, 1921
Creator: Dickson, Lawrence E.
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Partner: UNT Libraries Government Documents Department

Adjustable Grate Attachment.

Description: Patent for an adjustable grate attachment that is meant to be used with open grates. It prevents "the falling of heated coals therefrom; also to provide for extension of the grate vertically to facilitate making of a larger fire; and further, to provide an attachment which may be used in regulating the draft to the grate proper" (lines 15-20).
Date: May 23, 1893
Creator: Hutton, Milton Calhoun
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Partner: UNT Libraries Government Documents Department

Adjustable Headlight For Vehicles.

Description: Patent for a vertically moving headlight so that the driver can aim light toward the direction in which they are traveling. The headlight is meant to be durable and easy to build.
Date: August 4, 1914
Creator: Gray, Charles B. & Teter, William E.
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Partner: UNT Libraries Government Documents Department
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