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Tractor Turning Mechanism.
Patent for a tractor turning mechanism that will allow tractors to turn at any angle up to a right angle by locking one of the driving ground wheels into a pivot point for the other wheels of the tractor.
Date:
February 17, 1920
Creator:
Chenoweth, William B.
System:
The Portal to Texas History
Gauge Cock.
Patent for steam gauge or test cocks that provides a simple and economical gauge cock for steam boilers by which the steam can be readily tested and which is adapted to close the orifice automatically to provide a constructions which will not be disarranged in operation.
Date:
October 17, 1922
Creator:
Woodruff, Lovell H.
System:
The Portal to Texas History