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Plow
Patent for a plow with an adjustable pitch and share.
Date:
October 1, 1912
Creator:
KilPatrick, Robert L.
System:
The Portal to Texas History
Cut-Off Valve.
Patent for a new and improved valve. This design consists in "the valve-seat of [the] slide-valve, the entrances of whose steam passages form seats for auxiliary valves pivoted to [the] yoke on a rod, whose stud occupies said slot in upper portion of [the] arm pivoted to [the] pendant from [the] main valve-rod and terminating in [the] tappet, the same being combined with the adjustable stops" (lines 55-63).
Date:
October 1, 1889
Creator:
Moore, Robert B.
System:
The Portal to Texas History