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4 Matching Results
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Automatic Boiler-Feed
Patent for a steam boiler which automatically fills the boiler with water to the proper levels and keeps the levels steady.
Date:
August 11, 1908
Creator:
Twombly, Harry Denny
System:
The Portal to Texas History
Stirrup
Patent for "new and useful improvements in stirrups" (lines 5-6), including illustration and instructions.
Date:
August 17, 1909
Creator:
Hooks, George W.
System:
The Portal to Texas History
Pump Controlling Means
Patent for a pump controlling means. This invention applies even pressures on the discharge line. Illustration included.
Date:
August 23, 1904
Creator:
Small, William
System:
The Portal to Texas History
Core-Drill.
Patent for a core drill for making bore holes in rocks to get out solid samples of the inside of rocks, which has an improved grabbing method for retrieving the piece of rock inside the hole.
Date:
August 3, 1909
Creator:
McLoughlin, Malacha J. & Wynn, John S.
System:
The Portal to Texas History