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125 Matching Results
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125
Improvement in Car-Brakes.
Patent for improved railway car-brakes, including illustrations.
Date:
July 6, 1875
Creator:
O'Hara, Richard C.
Object Type:
Patent
System:
The Portal to Texas History
Improvement in Vehicle-Springs.
Patent for "an improvement in springs for carriages" (lines 4-5), including illustrations.
Date:
July 28, 1874
Creator:
Richardson, John D.
Object Type:
Patent
System:
The Portal to Texas History
Improvement in Railroad-Switches.
Patent for improvement in railroad-switches by “mounting a frog on a plate, and provided with pivoted rails or rail-sections, arranged for operation in connection with fixed rail-sections upon the plate, to form a continuity with either line of main rail, and connected below the plate by pivoted bars or levers, to secure a relative action or adjustment of the pivoted or movable rail-sections, whereby a very perfect and simple frog operating to prevent break in the main line or lines is obtained, and which is capable of being adjusted by passing trains in opposite directions of travel.” (Lines 5-18) Illustration is included.
Date:
July 16, 1872
Creator:
Fitzsimmons, Henry
Object Type:
Patent
System:
The Portal to Texas History
Improvement in Cotton and Hay Presses.
Patent for the "improvement in Horizontal Cotton - Presses for compressing cotton, hay, and other articles and substances for baling; ..." (lines 3-6), including illustrations.
Date:
July 5, 1859
Creator:
Stockbridge, Elam
Object Type:
Patent
System:
The Portal to Texas History
Valve-Gear for Steam-Engines.
Patent for improving the cut-off of steam-engines through a simple valve motion, including illustration.
Date:
July 30, 1850
Creator:
Milner, George B.
Object Type:
Patent
System:
The Portal to Texas History