3 Matching Results

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Chain Jack. (open access)

Chain Jack.

Patent for new and useful improvements in chain-jacks. "This invention aims to provide a chain-jack for lifting the boxes of axles, so that the bearings or brasses therefor can be readily replaced, and is designed especially for use in cases of hot boxes on railway-cars" (line 11-15).
Date: February 18, 1902
Creator: Phillips, Henry S.
System: The Portal to Texas History
Machine for Picking Cotton. (open access)

Machine for Picking Cotton.

Patent for an improved machine for picking cotton that is designed for the purpose of picking cotton fiber from the plants of the row. The machine is adapted to pass along over the row to extract the fiber from the bolls of the plants. The machine's provision allows for discharging the hairy tuft of the cotton seeds into elevating chutes so that the cotton seed can be discharged into a suitable receptacle mounted upon the framework of the machine.
Date: May 18, 1920
Creator: Threadgill, Wilmer
System: The Portal to Texas History
Rear Sight for Guns (open access)

Rear Sight for Guns

Patent for a rear sight for firearms, particularly larger firearms such as service rifles or other field artillery and machine guns.
Date: November 18, 1919
Creator: Kaempfer, Effie May Wagner
System: The Portal to Texas History