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Improvement in Truss-Bridges.
Patent for an improved method of truss-bridge construction, "whether made with a single or double roadway and with or without a sidewalk upon one or both sides, so as to enable them to be made with less material and less expense than when made in the ordinary manner, and which shall at the same time have an equal or greater strength." (Lines 14-20) Includes instructions and illustrations.
Date:
November 17, 1874
Creator:
Miner, John L.
System:
The Portal to Texas History
Improvement in seed-planters.
Patent for a seed planter that drops seeds into the plow furrow, where a roller covers the seeds with dirt. Includes illustrations.
Date:
February 17, 1874
Creator:
Pressly, Thompson
System:
The Portal to Texas History
Improvement in Road-Scrapers.
Patent for an improvement in road-scrapers, illustration included.
Date:
March 17, 1874
Creator:
Mayfield, William Dudley
System:
The Portal to Texas History
Improvement in Horse-Powers.
Patent for new improvement in the construction of horse-powers for cotton-gins and other machinery, including illustration.
Date:
February 17, 1874
Creator:
Landes, Daniel
System:
The Portal to Texas History
Improvement in Guide-Wheels for Car-Trucks.
Patent for a "device or attachment to car-trucks, &c., for preventing their being thrown off the track." (Lines 8-10) Includes instructions and illustrations.
Date:
November 17, 1874
Creator:
Hale, Nathan M.
System:
The Portal to Texas History
Improvement in Plows.
Patent for "means whereby the beam of a plow may be elevated or depressed at the front end according to the depth to which it is intended that the plow shall run, and held securely at several points of adjustment." (Lines 11-16) Includes instructions and illustrations.
Date:
November 17, 1874
Creator:
Ihringer, August
System:
The Portal to Texas History