Resource Type

Underground Portable Drill (open access)

Underground Portable Drill

Patent for drilling machines for the object of drilling underground openings for laying gas, electric, water or any other conduits. A second object is sectional drill or track worm to keep drilling going without moving the machine.
Date: July 15, 1919
Creator: Branning, Willie F.
System: The Portal to Texas History
Safety Device for Steam-Boilers (open access)

Safety Device for Steam-Boilers

Patent for a safety device designed to cut off steam in the even of an accident.
Date: July 15, 1902
Creator: Foskett, Fred
System: The Portal to Texas History
Improvement in Coolers for Railroad-Car Journals. (open access)

Improvement in Coolers for Railroad-Car Journals.

Patent relating to "an apparatus for cooling the journals and boxes of railroad-cars and other vehicles" (lines 27-29). Includes instructions and illustration.
Date: July 15, 1879
Creator: Morris, Robert C.
System: The Portal to Texas History
Boll-Cotton Separator and Cleaner (open access)

Boll-Cotton Separator and Cleaner

Patent for a new boll-cotton separator and cleaner used for separating and cleaning boll, catch the cotton delivered to the separating chamber, remove cotton from catching means, etc.
Date: July 15, 1919
Creator: Simmons, Oliver G.
System: The Portal to Texas History