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5 Matching Results
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Post Hole Auger
Patent for an improved post-hole digger/auger with multiple blades that cut in a spiral pattern and has the blades adjust and lock on the base. The blade shanks form a cage and keeps dirt from clogging the blades.
Date:
May 22, 1915
Creator:
Hoover, Orville M. & Ardery, Sarah, J.
System:
The Portal to Texas History
Fastening
Patent for fastening. This invention is comprised of a threaded member and a socket that are adapted to a screw. Illustration included.
Date:
October 26, 1909
Creator:
Percival, Herbert E. & Key, Brewer W.
System:
The Portal to Texas History
Rail Fastening
Patent for rail fastening. This invention is designed to fasten railroad rails and consists spikes, bolts, and a flange. Illustration included.
Date:
June 15, 1909
Creator:
Percival, Herbert E. & Key, Brewer W.
System:
The Portal to Texas History
Rail-Fastening.
Patent for a rail fastening for padding the connection between the rail and the tie, which has a stronger connection than previous versions of this type of device.
Date:
December 24, 1907
Creator:
Percival, Herbert E.
System:
The Portal to Texas History
Rail-Fastening for Plastic Ties and the Process of Making the Same.
Patent for " an improvement in rail-fastenings for plastic ties and the process of making the same." (lines 12-14) including instructions and illustrations.
Date:
December 26, 1905
Creator:
Percival, Herbert E.
System:
The Portal to Texas History