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Well Drilling Mechanism
Patent for a well drilling mechanism. This invention addresses the time consuming labor of screwing together sections of drilling pipe. This invention "contemplates an apparatus adapted to be attached to the frame of the rotary and operated by the driving mechanism of the rotary...screwing and unscrewing accomplished by mechanical means without manual means" (lines 38-44). Illustration included.
Date:
January 14, 1913
Creator:
Hall, Samuel N.
System:
The Portal to Texas History
Drain-Box for Railway-Crossings
Patent for a drain-box for railway crossings that drains water off of the tracks.
Date:
January 21, 1913
Creator:
McKnight, William M.
System:
The Portal to Texas History