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Improvement in Turbine Water-Wheels. (open access)

Improvement in Turbine Water-Wheels.

Patent for a new turbine water wheel, which is said to alleviate past problems with older model turbines. The patent includes instructions and illustrations.
Date: January 11, 1870
Creator: Chadwick, H. A.
System: The Portal to Texas History
Improved Bridge. (open access)

Improved Bridge.

Patent for an invention that "is to provide certain improvements in the construction of bridges, whereby the parts thereof, of wood, may be readily removed for the substitution of others, when decayed or broken, without interfering with the use of the bridge or weakening it (lines 10-15)". The patent includes instructions and illustrations.
Date: January 11, 1870
Creator: McDowell, H. S.
System: The Portal to Texas History