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Steam-Engine
Patent for a steam engine, improving on the original design so as to "provide a steam-engine having few parts so as to avoid the use of eccentrics, slide-valve, valve-rod, piston and connecting rods, stuffing-boxes, and glands, thus increasing the actual power by decreasing the friction" (lines 26-31).
Date:
January 1, 1889
Creator:
Harpst, Edgar S.
System:
The Portal to Texas History
Detachable and Adjustable Roller.
Patent for a new and improved hand-truck. This design consists in "the combination, with the sections . . . arranged parallel to each other and adapted to have a combined longitudinal and lateral motion with reference to each other . . . rollers located upon the under side of said sections, and the spurs on the upper faces at each end, of the braces . . . located, respectively, upon the lower and upper faces of the device and diagonally across the same, and pivoted at each end to said sections . . . the openings provided on said sections, and the dowels on said sections" (lines 68-80).
Date:
October 1, 1889
Creator:
Delany, John L.
System:
The Portal to Texas History