Resource Type

States

Plow. (open access)

Plow.

Patent for improvements in plows by providing “a reversible colter adapted to be applied to any style of plow; such as shovel-plows, half or turning shovels, bull-tongue, or other forms of plows. Also to provide a convenient means of attaching and detaching the plow” (lines 12-17). Illustration is included.
Date: April 14, 1891
Creator: Baker, George Washington
System: The Portal to Texas History
Pulley Hub. (open access)

Pulley Hub.

Patent for a new and improved pulley-hub. This design "relates . . . to the means employed for attaching the hubs thereof firmly but removably to the shaft upon which the pulleys are mounted; and the object of the invention is to effect improvements upon the well-known 'spline-and-groove' connection. To this end the invention consists of a hub having upon its interior two outwardly-tapering grooves, wedges moving within said grooves, and a screw having a pointed tip passing between the inner ends of the wedges to separate them" (lines 8-20).
Date: October 14, 1890
Creator: Collier, William Reid
System: The Portal to Texas History