UNT Libraries Government Documents Department - 6 Matching Results

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Dirigible Headlight.

Patent for a new headlight design to automatically turn on the headlights with steering gear.

Date: April 1, 1919

Creator: Chalmers, Andrew E. & Chalmers, Welcome A.

Item Type: Patent

Horse-Collar.

Patent for a "simpler, less expensive" (line 22) horse collar, with an adjustable, laced seam that utilizes less material than other collars. Includes instructions and illustration.

Date: March 28, 1916

Creator: Hendrix, John M.

Item Type: Patent

Irrigation Apparatus.

Patent for an irrigation apparatus that can be used in various size fields and mimics the falling of rain.

Date: January 9, 1912

Creator: Roddy, Isham L.

Item Type: Patent

Mechanical Movement.

Patent for improved mechanical movements "applicable to windmills for operating pump-rods and the like" (lines 10-11) including instructions and an illustration.

Date: April 15, 1913

Creator: Ward, Ziba G.

Item Type: Patent

Triple Valve for Fluid-Pressure Brakes.

Patent for a triple valve for fluid-pressure brakes in trains that prevents accidental triggering of the emergency brakes.

Date: October 10, 1911

Creator: Robinson, John W. & Douglas, Frank L.

Item Type: Patent

Wagon Brace

Patent for wagon brace that obviates danger of thimbles breaking under excessive weight and strain.

Date: November 25, 1919

Creator: Albritton, James

Item Type: Patent

UNT Libraries Government Documents Department - 6 Matching Results

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Dirigible Headlight.

Horse-Collar.

Irrigation Apparatus.

Mechanical Movement.

Triple Valve for Fluid-Pressure Brakes.

Wagon Brace