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3 Matching Results
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Adjustable Flat Die.
Patent for improved adjustable flat dies which provide different sizes of cutting dies to the cutting device.
Date:
May 10, 1921
Creator:
Wright, John G.
System:
The Portal to Texas History
Ink-Bottle
Patent for an ink bottle with screw threads allowing it to be screwed and unscrewed into a holder or desk; ink bottle can also be removed for cleaning or filling.
Date:
May 10, 1921
Creator:
Kayser, Mary Louise
System:
The Portal to Texas History
Locomotive Driving-Box.
Patent for improvements in locomotive driving boxes. Designed to "eliminate the necessity of removing the driving wheels" (lines 13-14) to replace the crown brasses, "eliminate the necessity of removing the driving box" (lines 16-17) to avoid lateral wear, and eliminates the necessity of expensive machine work.
Date:
May 4, 1920
Creator:
Simmons, Arthur, W.
System:
The Portal to Texas History