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Nut Lock.
Patent for a new and improved nut lock. This design consists "[i]n a nut-lock, the combination, with a screw-threaded bolt and nut, of a pair of arms pivoted or hinged together, said arms having annular screw-threaded grooves formed therein adapted to register with the threads on the bolt, and means for locking the arms together" (lines 76-81).
Date:
April 27, 1886
Creator:
Clark, Fred
System:
The Portal to Texas History
Insect Gathering Machine
Patent for insect gathering machine. Illustration included.
Date:
June 27, 1905
Creator:
Fogle, James Henry
System:
The Portal to Texas History