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7 Matching Results
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Improvement in Vibrating Propellers
Patent for Improvement in vibrating propellers for steamers to improve the ability to control the vessel. Includes two illustrated and labeled figures.
Date:
February 18, 1873
Creator:
Macowitzky, Charles P.
System:
The Portal to Texas History
Mechanical Calculator.
Patent for improvements in pivoting arm and sliding arm calculators. Includes instructions and illustrations.
Date:
April 28, 1891
Creator:
Mader, Theodore
System:
The Portal to Texas History
Car Coupling.
Patent for a new and improved coupling for railroad cars. This design "is to provide a . . . car-coupling link which automatically uncouples cars in case one or more of the cars runs off the track" (lines 7-10).
Date:
February 27, 1883
Creator:
Keller, Henry
System:
The Portal to Texas History
Insect-Trap.
Patent for an insect trap that attracts insects with a light.
Date:
February 7, 1911
Creator:
Wood, Robert N.
System:
The Portal to Texas History
Hair-Singer
Patent for a hair singer that contains the odor and smoke produced by singed hair.
Date:
February 25, 1913
Creator:
Eldridge, Edward H.
System:
The Portal to Texas History
Pipe Connection.
Patent for "an improved means of connecting the T which usually joins the pipe of a windmill-operated pump to a cistern-pipe" (lines 7-9)
Date:
February 10, 1903
Creator:
Collins, Livingston G.
System:
The Portal to Texas History
Vacuum Cotton-Picking Machine.
Patent for vacuum cotton picking machine and improvements, such as it is more portable, a receiver for the cotton and discharge of the cotton, and an improved cotton picking nozzle.
Date:
February 12, 1918
Creator:
Chaney, Bailey E.
System:
The Portal to Texas History