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6 Matching Results
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6
Casing Spear
Patent for a casing spear, "to remove casing within a well or removing a tool which may be dropped within the casing," with accompanying illustrations of the patent.
Date:
October 23, 1917
Creator:
Wagner, Warren
System:
The Portal to Texas History
Cut-Off Lock
Patent for gasoline cutoff for motor vehicles. Allows for vehicle to be still in use or running when left unattended, but will prevent it from being stolen.
Date:
January 9, 1917
Creator:
Reid, William O.
System:
The Portal to Texas History
Electric Connection for Automobile-Lamps.
Patent for electric connection for automobile lamps that has an improvement in electric connections or plugs for incandescent electric-lamps for automobiles.
Date:
September 11, 1917
Creator:
Kearby, John Gallatin & Robinson, Zephaniah
System:
The Portal to Texas History
Permutation-Lock.
Patent for "new and useful improvements in permutation-locks." (Lines 6-7) This lock is specifically designed to protect delivered milk bottles from theft.
Date:
November 13, 1917
Creator:
Kirkpatrick, Otey R.
System:
The Portal to Texas History
Post Hole Drill
Patent for Post Hole Drill.
Date:
February 17, 1917
Creator:
Blue, Lee A.
System:
The Portal to Texas History
Roller Bearing
Patent for Roller Bearing
Date:
January 2, 1917
Creator:
Galbraith, David G.
System:
The Portal to Texas History