3 Matching Results
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Safety-Trap.
Patent for class of steam valve safety traps to prevent the interference of heavy particles with the flow of steam ensuring efficient working of the machine.
Date:
July 25, 1916
Creator:
Bird, David R.
System:
The Portal to Texas History
Railroad Tie
Patent for a type of support for the rails in railroad tracks.
Date:
August 7, 1916
Creator:
Huffman, Henry W.
System:
The Portal to Texas History
Transporting Truck
Patent for "improvements in transporting trucks for agricultural implements" (Lines 10-11) including illustrations.
Date:
March 21, 1916
Creator:
Leach, William W.
System:
The Portal to Texas History