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Book-Support and Writing-Table.
Patent for book support and writing table that adjusts to the item being used by the person. The tray is able to hold the item either a book or writing materials while adjusting to the user's needs. The book support and writing table can be folded to occupy little space.
Date:
May 10, 1921
Creator:
Taylor, Henry S.
System:
The Portal to Texas History
Oil-Stove
Patent for improvements in oil burner stoves.Pertains more to oil stoves with movable burners so that the flame intensity can be adjusted or extinguished.
Date:
May 10, 1921
Creator:
Cook, Thomas Edward
System:
The Portal to Texas History
Pump for Hydraulic Presses
Patent for a hydraulic pump that drives at a uniform speed as the pressure of the press increases, and connects the pistons with two pairs of cylinders moving in opposite cycles.
Date:
May 10, 1921
Creator:
Henry, Nelson B.
System:
The Portal to Texas History