UNT Libraries Government Documents Department - 624 Matching Results

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Electric Light Switch.

Description: Patent for an improved electric switch that is used to energize electric lights for various purposes and for use in connection with a signaling system. This switch will permit the energization of any one of the lights separately or all lights simultaneously.
Date: April 6, 1920
Creator: Riggs, Fletcher S.

Window-Screen.

Description: Patent for improvements in screen constructions in connection with doors or windows. The goal is to provide a means for encouraging insects that are on the inner surfaces of the screen.
Date: January 20, 1920
Creator: McGeorge, Jefferson F.

Measuring Apparatus.

Description: Patent for an improved measuring apparatus. This apparatus improves the measuring of dry goods through a measuring tape that is affixed to the measured goods. The invention allows for goods to be cut to exact lengths.
Date: January 28, 1919
Creator: Garrett, Thomas B.

Switch.

Description: Patent for an electric switch that is used in conjunction with a signaling device that allows for lights to be activated synchronously or asynchronously via the use of two levers.
Date: September 6, 1921
Creator: Riggs, Fletcher S.

Railroad-Tie

Description: Patent for a metallic tie and fastener designed to replace the wooden tie that was in general use. The purpose of this railroad tie is to secure the rail (preventing spreading) and and to prevent lateral moment (creeping) of the rail when the train is passing over.
Date: July 5, 1921
Creator: Jones, Charles James

Harness-Collar.

Description: Patent for harness collars for horses and mules. This harness collar "is to provide a collar having adjustable fastening mean which preferably are also adjustable as between themselves whereby a better adjustment of the collar is made possible" (lines 22-27)
Date: January 2, 1917
Creator: Mahone, Edwin W.

Draft-Gear for Railway Cars

Description: Patent for a draft gear for railway cars that allows a simple and efficient means of repairs or substitutions of sills or beams that may be done without dissociating the draft bar so that a car may not be out of commission for a considerable length of time.
Date: August 17, 1915
Creator: Moorman, James M.

Angle Cock Device

Description: Patent for "stop cocks for controlling the flow of fluids and more particularly to what are known as angle cocks for use in train pipes of air brake and other fluid pressure systems upon railway cars" (lines 8-13) including illustrations.
Date: March 9, 1915
Creator: Ellwood, Thomas B.

Valve Mechanism For Steam Engines

Description: Patent for useful improvements to the valve mechanism for steam engines. The invention allows an improved means for actuating the slide valve without the use of eccentrics. The valve can also be operated into closed positions at various degrees, and also to reverse the direction of travel of the valve.
Date: June 9, 1914
Creator: Wright, Ed W.

Hoe.

Description: Patent for a new and improved garden hoe used for weeding purposes. The improvement is related to, "...the handle of the implement being hollow" (lines 11-12) and able to receive a quantity of seed, and a mechanism that controls the delivery of seed to the hoe.
Date: May 6, 1913
Creator: Etheridge, John B.

Peanut Picker and Pea Huller.

Description: Patent for a new and improved Peanut Picker and Pea Huller, which picks peanuts from the vines and removes them without damaging the peanuts through beating or flailing. The invention also operates at a minimum amount of power while discharging the peanuts or peas free of dust.
Date: May 13, 1913
Creator: Berry, William C.

[Trading Card: Bald Cypress]

Description: Trading card issued as part of the Geocache Challenge program for Caddo Lake State Park, depicting an image of a family in a canoe, in water that is surrounded by bald cypress trees. The back of the card includes information about the trees.
Date: 2011
Creator: Texas. Parks and Wildlife Department.
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