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1,640 Matching Results
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Truss.
Patent for an "improved truss or abdominal belt" (lines 40-41) that provides a simple design with added pads.
Date:
April 7, 1920
Creator:
Buckley, James William
System:
The Portal to Texas History
Vignetting Attachment for Multiple-Exposure Cameras.
Patent for a multiple exposure camera attachment that allows multiple exposures to be made on a single plate or film, blending the exposures perfectly while avoiding harsh lines. The attachment is a telescopic tubular attachment with "a plurality of apertured light ray interrupting diaphragms" (lines 77-78).
Date:
April 5, 1921
Creator:
Moine, Selest E.
System:
The Portal to Texas History
Wire-Fence Shield.
Patent for a tool to cover a portion of barbed wire fence allowing one to cross over or through without harm, composed of three or more telescoping metal tubes.
Date:
April 6, 1920
Creator:
Davis, Marion L.
System:
The Portal to Texas History
Well-Tubing Catcher
Patent for an improved well tubing catcher, which "provides an equal and positive bearing surface for the gripper slips or dogs in all their adjusted positions" (lines 16-18), including illustrations.
Date:
April 12, 1921
Creator:
Wilson, Robert A.
System:
The Portal to Texas History
Well-Drilling Tool.
Patent for a bit that can be attached to a rotary tool for drilling wells. It features a means for using water to dislodge any accumulated mud from the tool.
Date:
April 5, 1921
Creator:
Clore, Franklin H.
System:
The Portal to Texas History
Windmill-Gearing
Patent for improved windmill gearing, intended to reduce stain on the machinery
Date:
April 13, 1920
Creator:
Roberts, George W.
System:
The Portal to Texas History
Well-Packer.
Patent for an improved well drilling device called a "packer", in which this version has a reduced likelihood of the seals between separate parts being damaged and needing replacement.
Date:
April 13, 1920
Creator:
Fletcher, Harold W.
System:
The Portal to Texas History
Wire-Fence-Stay Machine.
Patent for wire working machines, specifically for automatically making wire fence stays. This machine can be operated manually and it is portable.
Date:
April 30, 1918
Creator:
Alverson, Lewis
System:
The Portal to Texas History
Wheel.
Patent for an improved wheel tire. The improvements to a conventional tire include multiple hinged springs which limit the movement of the wheel in two directions when contact is made with the ground. The wheel includes shoes placed concentrically around the wheel that provides shock absorption, better traction, and overall stability.
Date:
April 12, 1919
Creator:
Schmidt, Oscar J.
System:
The Portal to Texas History
Wire-Stretcher.
Patent for an improvement wire-stretcher using a sliding, adjustable plate (non-rotating) that provides unique means for attaching, stretching, and adjusting the wire.
Date:
April 2, 1918
Creator:
Moore, Charles M.
System:
The Portal to Texas History
Window Shade Roller
Patent for an improved window shade roller design.
Date:
April 15, 1919
Creator:
Revier, H. R.
System:
The Portal to Texas History
Automobile Extracting Device
Patent for an Automobile Extracting Device, which may be readily carried in compact form in one of the storage compartments of a motor vehicle, including illustrations.
Date:
April 9, 1918
Creator:
Morrow, Thomas B.
System:
The Portal to Texas History
Wrench
Patent for an improvement to wrenches. This wrench uses a sliding jaw system for increased utility.
Date:
April 29, 1920
Creator:
Grogan, Edward W.
System:
The Portal to Texas History
Improvements in Processes of Distillation and Apparatus Therefor
Patent for improvements in processes of distillation and apparatus therefor in petroleum refineries.
Date:
April 30, 1918
Creator:
Prichard, George L.
System:
The Portal to Texas History
Improvements in the Concentration and Purification of Sludge Acid
Patent for improvements in the concentration and purification of sludge acid in petroleum refineries.
Date:
April 23, 1918
Creator:
Slater, William A.
System:
The Portal to Texas History
Well-Casing Grapple
Patent for a well-casing grapple, allowing a positive grip when lowering casing or pipe within a well, or withdrawing it therefrom, without the danger of slipping or accident.
Date:
April 30, 1918
Creator:
Artzt, Erich C.
System:
The Portal to Texas History
Tractor
Patent for "novel features of construction and combinations of parts" in tractors to ensure a steady, even pace of travel and allow for traversing uneven landscape while maintaining a level setting, including illustrations and instructions.
Date:
April 23, 1918
Creator:
Altgelt, Herman E.
System:
The Portal to Texas History
Price-Tag.
Patent for an improved price tag that includes not only the price information, but also "at a glance a stock record and a cost record and provides space for making notations and writing other information" (lines 13-16) for the use of a store clerk's reference.
Date:
April 20, 1920
Creator:
Bedinger, Singleton B.
System:
The Portal to Texas History
Stalk-Cutter Attachment
Patent for improvements to stalk-cutter attachments to plows. The invention allows stalks to be cut by the plow and then turned under it into the soil to decrease labor an improve plow performance.
Date:
April 7, 1919
Creator:
Wylie, Arthur E.
System:
The Portal to Texas History
Hydrocarbon-Burner
Patent for an improved hydrocarbon burner, including illustrations.
Date:
April 6, 1920
Creator:
Critchett, James C.
System:
The Portal to Texas History
Spear
Patent for a spear that is used to help withdraw or remove pipes that may get stuck in wellbores.
Date:
April 20, 1920
Creator:
Gray, Ellsworth
System:
The Portal to Texas History
Method of Stretching and Securing Wire.
Patent for a "new method of stretching and securing wire" (line 6).
Date:
April 27, 1920
Creator:
Coulter, Thomas H.
System:
The Portal to Texas History
Pump Jack
Patent for an improved double-acting pump jack that will require less parts and external force to operate and maintain.
Date:
April 29, 1919
Creator:
Lively, William
System:
The Portal to Texas History
Tool Joint
Patent for a tool joint design.
Date:
April 15, 1919
Creator:
Fletcher, H. W.
System:
The Portal to Texas History