UNT Libraries Government Documents Department - 38 Matching Results

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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

Cattle-Guard for Railroads.

Description: Patent for a cattle-guard for railroads that is "a series of plates or slates mounted with the capability of partial or complete rotation on axes substantially parallel with the rails and between the said rails and on either side of the track so as to span the road bed or space between the ends of the fence" (lines 25-31). The plates have longitudinal flanges with serrated edges.When the cattle step on the guard, they will experience pain and avoid the spot.
Date: February 6, 1894
Creator: Lee, Jacob M.
Item Type: Refine your search to only Patent

Combination Well-Packer and Setting-Tool.

Description: Patent for a well packer and setting tool for the prevention of intermingling between oil and water in a well when used by itself or with other pipes. The invention allows for the packer to be set using the setting tool which can then be removed once the packer is in place.
Date: January 6, 1920
Creator: Abercrombie, Jamie & Dunman, Nesbit M.
Item Type: Refine your search to only Patent

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

Hay and Cotton Press.

Description: Patent for a new and improved baling press. This design is for "[a]n improved device for retaining a compressed bale in its condensed state after the follower is withdrawn, which consists of pawls pivoted in holes in the sides of the press-box and projecting toward the rear end of the press-box . . . [and] [t]he combination, with the follower rack-bar, the pinions, the shafts, having suitable pulleys, adapted to be connected by belts, of two clutches, and a centrally-pivoted lever having [a] ha… more
Date: March 6, 1883
Creator: Hampton, John Andrew
Item Type: Refine your search to only Patent

Improvement in Rotary Engines.

Description: Patent for rotary engines "driven by steam or other elastic agent, or which may be used for pumping water" (lines 29-32) to obtain "a more direct application of the force applied to drive the engine" (lines 39-40) including instructions and illustrations.
Date: February 6, 1872
Creator: Richardson, John Dun
Item Type: Refine your search to only Patent

Mechanism for Converting Motion

Description: Patent for mechanism for converting motion. "The present invention relates to mechanism for converting reciprocatory into rotary motion; and the objects are to provide a practical apparatus of this character in which rotary motion may be imparted to a driven member without occasioning any dead-centers and to provide simple means reversing the direction of motion of the driven member" (line 10-19). Illustrations included.
Date: October 6, 1903
Creator: Griffin, George L.; Griffin, Robert Alonzo; Griffin, Chelsea Beach & Griffin, Herbert Elvia
Item Type: Refine your search to only Patent

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

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

Receptacle.

Description: Patent for a "discharge spout" (line 34) that prevents accidental spills for receptacles that contain liquids, including illustrations.
Date: July 6, 1915
Creator: Goodpasture, Thomas B. & Maxwell, Thomas J.
Item Type: Refine your search to only Patent

Rotary Engine

Description: Patent for a rotary engine. This invention consists of a "stationary jacket and a rotor revoluble therein with a maximum degree of power and a minimum of friction" (lines 11-14). Illustrations included.
Date: August 6, 1912
Creator: Bosley, William C.
Item Type: Refine your search to only Patent

Shutter-Hinge

Description: Patent for a shutter hinge made of sheet metal which does not creak in the wind and is sturdier than older hinges made of cast metal.
Date: October 6, 1908
Creator: Williams, John B.
Item Type: Refine your search to only Patent

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
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