Bedstead (open access)

Bedstead

Patent for a bedstead. Illustration included.
Date: October 31, 1905
Creator: Davis, Augustus H.; Hummel, George F. & Gray, J. W.
System: The Portal to Texas History
Oil-Converting Apparatus. (open access)

Oil-Converting Apparatus.

Patent for an apparatus that can be built at moderate cost, which will enable a high rate of commercially efficient work to reduce "the specific gravity of various grades of hyrdo-carbon oils, especially those of a semi-refined character" (lines 22 - 24).
Date: October 28, 1919
Creator: Adams, Joseph H.
System: The Portal to Texas History
Discharge Mechanism for Harvesters (open access)

Discharge Mechanism for Harvesters

Patent for the binder-deck of harvesters "and it consists, broadly, of a flexible deck having its lateral edges fixed and its middle portion hinged at one edge and free at the other, and means for automatically lowering the latter when the bundle of grain is to be discharged in order that the discharge may be facilitated" (lines 11-17).
Date: October 25, 1892
Creator: Stroud, Wiley N. & Corey, Rufus H.
System: The Portal to Texas History