Resource Type

States

Valve Gear. (open access)

Valve Gear.

Patent for a new and improved valve-gear. This design "relates to improvements in mechanical movements adapted especially to the valve-gear of steam-engines, and is designed to produce a device having a reciprocatory movement having intermediate impulses" (lines 9-14).
Date: August 18, 1885
Creator: Pinkham, Delmar D.
System: The Portal to Texas History
Steam Engine (open access)

Steam Engine

Patent for improvements in steam engine, particularly the cylinder.
Date: June 30, 1885
Creator: Pinkham, Delmar D.
System: The Portal to Texas History
Plow (open access)

Plow

Patent for invention new and useful improvement in Plows, relates the shape of the mold-board and the manner of securing the point and land side to the standard [5-15].
Date: June 30, 1885
Creator: Kelly, George A.
System: The Portal to Texas History