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Differential Driving Mechanism.
Patent for a differential driving mechanism which allows axles to rotate at different speeds, includes illustrations.
Date:
July 6, 1915
Creator:
Lindsley, Berrien M.
Object Type:
Patent
System:
The Portal to Texas History
Wedge Cutter
Patent for a device that cuts wood into different sized wedges. This is a device used in the construction industry.
Date:
July 14, 1915
Creator:
Echols, Elijah B. & Zindler, Herman J.
Object Type:
Patent
System:
The Portal to Texas History