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3 Matching Results
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Adjustable Electric-Light Holder.
Patent for an adjustable electric-light holder for automobiles.
Date:
November 26, 1918
Creator:
Balke, Morris
System:
The Portal to Texas History
Triple Valve.
Patent for a triple valve for brake systems on trains, which reduces pressure in the air pipes of the train and automatically brakes if there is a broken air hose.
Date:
July 26, 1910
Creator:
Torbron, Orin F.
System:
The Portal to Texas History
Grindstone Fixture.
Patent for a new and improved grindstone fixture. This design consists "[i]n a fastening for grindstones, the combination of the shaft having the rounded collar and the screw-threaded portion, the stone fitting with its central perforation upon the shaft, the washer having the concave aperture fitting upon the collar, the washer having the set-screws, and the nut upon the threaded part of the shaft clamping the washers upon the stone" (lines 77-85).
Date:
February 26, 1889
Creator:
Stopple, John Julius
System:
The Portal to Texas History