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12 Matching Results
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Method and Apparatus for Coating Pipes, Bars, Angles, and the Like.
Patent for improved method of coating pipes, bars, angles, etc., by applying centrifugal force to the item after being immersed in a coating bath.
Date:
July 13, 1920
Creator:
Watrous, Edward L.
System:
The Portal to Texas History
Adjustable Spring Clamp
Patent for an improved adjustable spring clamp design.
Date:
May 13, 1919
Creator:
Hillin, H. C.
System:
The Portal to Texas History
Record-Filing Cabinet
Patent for a record filing cabinet designed to show every record within as well as records of different sizes.
Date:
May 13, 1919
Creator:
McCart, Robert, Jr.
System:
The Portal to Texas History
Pulling Attachment for Vehicles.
Patent for vehicle pulling attachment improvements for motor operative winch designed to retrieve stalled vehicles and includes driver foot pedal engagement.
Date:
March 13, 1917
Creator:
Zane, Edmund L.
System:
The Portal to Texas History
Account-Book.
Patent for a new and improved account book that is arranged to improve accuracy of record-keeping and facilitate the referencing of different accounts.
Date:
June 13, 1916
Creator:
Zimmerman, Charles Levy
System:
The Portal to Texas History
Engine-Starting Device
Patent for engine starting device to prevent back-fires when cranking, complete with illustrations.
Date:
April 13, 1915
Creator:
Kneezell, Edward
System:
The Portal to Texas History
Triple Valve
Patent for a triple valve for air brakes on trains that gives the engineer more control over the brakes.
Date:
August 13, 1912
Creator:
Anderson, Williamson D. & Shearer, Edward J.
System:
The Portal to Texas History
Toy Gun
Patent for a toy gun. Illustrations included.
Date:
April 13, 1909
Creator:
Griffith, Jesse B.
System:
The Portal to Texas History
Lock-Nut.
Patent for a lock-nut which prevents the nut from accidentally rotating on the bolt, including illustrations. The nut is locked in position when a locking key is introduced to grooves on the lower surface of the nut and the adjacent face of the washer.
Date:
February 13, 1906
Creator:
Crawford, Hezekiah H.
System:
The Portal to Texas History
Reciprocating Electric Engine
Patent for "means for employing an ordinary continues current from a suitable source to produce an oscillating primary magnetic field of a solenoid-magazine and to use said magnetic field for setting a piston-like armature in a reciprocal axial motion to develop mechanical power in both directions" (lines 11-17).
Date:
June 13, 1905
Creator:
Wagner, Bruno Otto
System:
The Portal to Texas History
Water-Elevator.
Patent for a water-elevator that elevates huge amounts of water for ranches and irrigating. The elevator "can be easily operated by the direct pull of a single animal, which passes and repasses the well during the operation of raising and lowering the well bucket, and by this means contemplates dispersing with the necessity of winding drums or windlasses and horse powers, which are usually employed in connection with water elevators" (lines 16-23).
Date:
February 13, 1894
Creator:
Campbell, George William
System:
The Portal to Texas History
Dynamometer for Locomotives.
Patent for a new and improved dynamometer for locomotives. This design is "to provide a novel construction in dynamometers for indicating the traction power of locomotives" (lines 9-11). It consists in "a draw-head, a chamber containing a liquid located therein, a piston operating in said chamber, means for connecting said piston with the opposite draw-head, suitable tubing connecting with the said chamber, and a pressure-gage mounted upon or attached to the said tubing and actuated by the said liquid" (lines 29-37).
Date:
January 13, 1891
Creator:
Innes, Robert H.
System:
The Portal to Texas History