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Cultivator. (open access)

Cultivator.

Patent for a riding cultivator that keeps the shovel gangs positioned "parallel with the line of the draft, or with the longitudinal axis of the machine" (lines 19-21), by shifting them in the direction that the driver guides the wheels. The cultivator also provides a means to keep the depth of cultivation as uniform as possible when working on uneven ground or in different kinds of soil.
Date: January 3, 1922
Creator: Mayer, Henry A.
System: The Portal to Texas History
Oil-Burner. (open access)

Oil-Burner.

Patent for an oil burner which ensures the "formation of a thorough mixture of oil, air and a fluid under pressure, such as steam or compressed air" and the prevention of the "flooding of the burner with surplus oil".
Date: June 3, 1913
Creator: Eckhardt, Richard H.
System: The Portal to Texas History