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in subjects: "Science and Technology - Tools"  
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Spark-Arrester.

Description: Patent for concepts and designs used to improve performance of Spark-Arresters used in the smoke stacks of locomotives with illustrations and instructions.
Date: April 6, 1880
Creator: Wiggin, John E.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Blade Holder.

Description: Patent for an improved blade-holder that is simple in construction and can be manufactured at a lower cost. It is designed to "permit of the blades being readily and quickly assembled in the holder and permanently clamped therein to prevent any accidental displacement or movement of the blades from such holder during the stropping." (lines 16-21), including illustrations.
Date: November 6, 1917
Creator: Harriss, Wade H.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

[News Script: Houston Space Station]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, relating a news story of the Skylab three astronauts who are running through a last series of mission experiments prior to their return to Earth.
Date: February 6, 1974, 12:00 p.m.
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Script
Partner: UNT Libraries Special Collections

Valve-Gear for Engines.

Description: Patent for "a new and useful improvement in Steam-Engine Valve-Gears." The invention consists in "combining with a crank-shaft and a valve-shaft a lever, shaft, and two friction-wheels" (lines 4-9)
Date: July 6, 1880
Creator: Josserand, Peter
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Valve.

Description: Patent for an improvement in sealing capabilities for water pump valves, including illustrations.
Date: July 6, 1915
Creator: Shelp, William B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Pump.

Description: Patent for a pump for deep wells with a "specially constructed piston capable of a powerful working stroke and which will secure at all times a full volume of liquid at each stroke of the pumping rod." (line 25) including instructions and illustrations.
Date: July 6, 1920
Creator: Humason, Granville Allison
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Polishing-Machine

Description: Patent for improvements in polishing machines for "polishing marble and other similar stones... and giving a smooth surface to any material of like character." Invention provides a "movable abrading member...and comprehends and mechanism whereby said member may be automatically moved back and forth over the surface to be polished."
Date: April 6, 1915
Creator: Giesberg, John G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Dispensing-Vehicle.

Description: Patent for a "portable store or dispensing vehicle" (lines 11-12) designed to carry a small stock of merchandise that can be conveniently displayed & sold to customers, quickly turned to ensure freshness, and refrigerated if necessary. The vehicle is intended to support quick relocation through its portability, save time for both dispenser and customer alike, and be either draft animal- or motor-driven, illustrations included.
Date: January 6, 1920
Creator: Moody, Jason B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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