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Elevator and Conveyer for Concrete-Mixers.
Patent for improvements in elevators and conveyers for concrete-mixers “whereby the mixed concrete can be fed to the wall mold at different elevations, the elevator being extended and the conveyer raised for constructing the successive stories of the building.” (Lines 17-21) Illustration is included.
Date:
July 1, 1913
Creator:
Miller, Frederick
System:
The Portal to Texas History
Manufacture of Aluminum Chlorid
Patent for the manufacture of aluminum chlorid and the method of making aluminum chlorid to produce vapors that are subsequently condensed in any suitable manner. This patent is important because it is advantageous to work with a producer of gas made at as high a temperature. This is because of the greater amount of sensible heat it carries forward for use in the reaction.
Date:
July 1, 1919
Creator:
King, George H.
System:
The Portal to Texas History