Car Coupling. (open access)

Car Coupling.

Patent for a new and improved coupling for railroad cars. This design "is in couplers adapted to use a link of ordinary form and to be so set that coupling may be automatic or not, as desired" (lines 15-17). It consists, "with the draw-head having lugs upon each side of the same, of the vertical coupling-pin, the pivoted pin-supporting arms arranged to contact with the lugs, and tripping arms adapted to be operated by the centering-link and throw the arms from the lugs" (lines 23-29).
Date: June 28, 1892
Creator: Callaway, William H. & West, Charles C.
System: The Portal to Texas History
Windmill (open access)

Windmill

Patent for Windmill Improvements that includes a mounted rotor for horizontal rotation, including illustrations.
Date: June 28, 1913
Creator: Henning, Thomas W.
System: The Portal to Texas History
Spring-Motor (open access)

Spring-Motor

Patent for a motor used to operate light machinery such as sewing machines using spring power. Illustrations included.
Date: September 28, 1909
Creator: O'Bannon, William H. & Field, James M.
System: The Portal to Texas History
Powder-Ejector (open access)

Powder-Ejector

Patent for a vaginal powder ejector. Illustrations included.
Date: September 28, 1909
Creator: Sands, William Walter
System: The Portal to Texas History