Resource Type
Counties
2 Matching Results
Results open in a new window/tab.
Results:
1 - 2 of
2
Concrete Composition
Patent for a formulation of waterproof concrete that utilizes lava rocks.
Date:
December 17, 1918
Creator:
Charles E. Barglebaugh
System:
The Portal to Texas History
Propeller-Wheel.
Patent for a propeller-wheel for steam and other vessels. This invention is meant "to provide a propeller by which a maximum speed may be obtained without a proportionate increase in toe motive power employed" (lines 15-18). It doesn't have a lateral resistance of water and does not diffuse water in all directions.
Date:
December 17, 1895
Creator:
Parker, Elisha J.
System:
The Portal to Texas History