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Valve

Description: Patent for a valve with a peripheral knife edge which allows for fluid tight joints. Illustrations included.
Date: June 22, 1909
Creator: Speer, George F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Nut-Lock.

Description: Patent for a nut lock with a locking plate that can be used for multiple nuts, "particularly those used in securing the joints of railroad rails, frogs, switches, and crossings" (lines 10-12), with illustrations.
Date: June 19, 1906
Creator: Taylor, James T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Piano-Pedal.

Description: Patent for a piano pedal made of one piece of cast metal to avoid the problem of loose connections between parts over time and which goes in a smaller hole in the bottom of the piano to prevent mice or dust from entering inside the piano.
Date: June 18, 1907
Creator: Norcross, Levi Watson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Piano-Case.

Description: Patent for a piano case, which allows the lid to be put back far enough to allow a music stand to rest easily on it on the upright position and which has a new, non-box-like design.
Date: June 9, 1908
Creator: Norcross, Levi Watson
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Elevator Door and Catch.

Description: Patent for elevator doors and catches by creating a device which can make the elevator door opened and closed automatically. Illustration is included.
Date: June 18, 1901
Creator: McNaught, Ira S.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Gate

Description: Patent for a "class of gate known as a 'turnstile' or 'revolving gate'" (lines 8-9) including illustrations.
Date: June 10, 1902
Creator: Johnson, Charles B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Burner for Crude Oil.

Description: Patent for "a burner for crude oil, and particularly to a construction by means which a direct or indirect draft may be utilized in the burning of the oil." (lines 11-14) and illustrations.
Date: June 10, 1902
Creator: Lewis, Thomas E.; Ray, Albert J. & Wesson, Miley B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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