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Viscoscometer.
Patent for a device that accurately determines the viscosity of different liquids, particularly oils, and is able to be kept at a uniform temperature.
Date:
June 13, 1916
Creator:
Lorenz, Charles O.
System:
The Portal to Texas History
Percolator.
Patent for a percolator that has a storage tank where the water may be heated and stored for later use to make coffee. The device also features a cylinder, where ground coffee is placed, that can be removed for easy cleaning.
Date:
June 13, 1916
Creator:
Duke, Holmes
System:
The Portal to Texas History