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Half-Car Unloader.
Patent for the improvement of Half-Car Unloaders as it "relates to the handling of material in bulk and has special reference to a device arranged to enable railroad cars such as are sued for hauling coal, ore, and other like material to be unloaded by a single operation." (lines 13-18)
Date:
July 31, 1917
Creator:
Scardino, Mariano P. & Scardino, Peter
System:
The Portal to Texas History
Insecticide
Patent for a compound for destroying weevils, rats and mice.
Date:
July 11, 1882
Creator:
Wheeler, John H.
System:
The Portal to Texas History
Plow.
Patent for a new and improved plow. This design "has for its object to produce a plow which shall scour or clean itself readily in sticky soil and shall be Light of draft. To this end it consists in the construction and combination of the point and mold-board of a plow" (lines 8-13).
Date:
July 3, 1883
Creator:
Simpson, George
System:
The Portal to Texas History