Automatic Wrench (open access)

Automatic Wrench

Patent for an automatic wrench. The wrench possesses a locking movable jaw. Illustrations included.
Date: January 7, 1913
Creator: Clay, Samuel
System: The Portal to Texas History
Clevis. (open access)

Clevis.

Patent for a new and improved clevis. This design "is to provide a clevis with a series of attaching-loops whereby the line of draft may be changed as circumstances may require, to bring the line of draft to either side of the plow-beam, or above or below the same, and to provide a clevis with a centrally-located attaching-loop, to be used where a direct or central draft is needed" (lines 11-18).
Date: January 26, 1886
Creator: Dunn, Henry Frankling
System: The Portal to Texas History
Washing-Machine (open access)

Washing-Machine

Patent for a washing-machine
Date: January 27, 1903
Creator: Cesinger, George Valentine
System: The Portal to Texas History
Improvement in Portable Fences. (open access)

Improvement in Portable Fences.

Patent for new and useful improvements in fences made in sections or panels. It consists in the construction and arrangement of the brackets or supports for the panels.
Date: January 12, 1875
Creator: Johnson, Jehu W.
System: The Portal to Texas History
Plow Attachment (open access)

Plow Attachment

Patent for a plow attachment. This invention works with sweep plows and consists of a runner and secured to the end of the plow beam. Illustration included.
Date: January 1, 1907
Creator: Wiegert, Theodore & Neumann, Louis
System: The Portal to Texas History
Improved Bridge. (open access)

Improved Bridge.

Patent for an invention that "is to provide certain improvements in the construction of bridges, whereby the parts thereof, of wood, may be readily removed for the substitution of others, when decayed or broken, without interfering with the use of the bridge or weakening it (lines 10-15)". The patent includes instructions and illustrations.
Date: January 11, 1870
Creator: McDowell, H. S.
System: The Portal to Texas History
Improvement in Washing-Machines. (open access)

Improvement in Washing-Machines.

Patent for an improvement in washing machines.
Date: January 31, 1871
Creator: Nave, Andrew Jackson
System: The Portal to Texas History