Resource Type

Degree Department

Car Coupling. (open access)

Car Coupling.

Patent for a new and improved coupling for railroad cars. This design consists "of a draw-head, a depending hook pivotally mounted therein, a transverse pin arranged on the bottom of the mouth of the draw-head and provided intermediate its ends with a notch to permit the passage of the lower end of the hook, a spring for holding the notch away from the hook, and means for sliding the pin to bring the notch opposite the hook" (lines 83-91).
Date: August 16, 1892
Creator: Davis, William Haywood
System: The Portal to Texas History
Improvement in Cotton Choppers (open access)

Improvement in Cotton Choppers

Patent for improvement in cotton choppers creating a more effective machine relating to the cultivating and chopping of cotton. Includes labeled figures and descriptive text
Date: August 16, 1873
Creator: Garrett, Joseph M.
System: The Portal to Texas History