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4 Matching Results
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Switch-Stand.
Patent for a switch stand that automatically switches to danger when unlocked and has independently rotating switch operating spindles and target spindles.
Date:
October 19, 1915
Creator:
Praetorius, Richard P.
System:
The Portal to Texas History
Rug-Hanger.
Patent for the improvement of rug-hangers. The invention consists of multiple rollers that facilitate both the mounting and disengagement of rugs or other large flexible articles of merchandise from the hanger.
Date:
May 11, 1915
Creator:
Griffin, James S.
System:
The Portal to Texas History
Car-Replacer
Patent for improved replacers for derailed railroad cars, complete with illustrations.
Date:
April 13, 1915
Creator:
Duval, Allen
System:
The Portal to Texas History
Vise and Saw-Clamp
Patent for improvements to vise and saw clamps complete with illustration.
Date:
April 13, 1915
Creator:
King, William T.
System:
The Portal to Texas History