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10 Matching Results
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Adjustable Handle-Bar for Bicycles.
Patent for adjustable handle bar for bicycles, including illustrations.
Date:
June 29, 1897
Creator:
Winfrey, Edgar, M.
System:
The Portal to Texas History
Boring and Threading Tool.
Patent for an inexpensive, efficient boring and threading tool that "will enable a smooth and even surface to be produced with a minimum of skill on the part of the operator" (lines 18-21).
Date:
June 21, 1921
Creator:
Wells, Daniel Doolittle
System:
The Portal to Texas History
Baby Net Frame.
Patent for a frame that can support a baby net and can be collapsed for easy storage. The frame also features components that prevent collapse and provide stability when in use.
Date:
June 6, 1922
Creator:
Akers, Blessie E.
System:
The Portal to Texas History
Pipe Tongs.
Patent for pipe tongs for drilling wells using rotary systems. The tongs are designed to be securely held against the drill stem using a lever, making them simple and economical to manufacture.
Date:
June 28, 1921
Creator:
Hill, Richard D.
System:
The Portal to Texas History
Wire-Stretcher.
Patent for certain new and useful improvements in wire stretchers, including instructions and illustrations.
Date:
June 13, 1899
Creator:
Smith, William C.
System:
The Portal to Texas History
Farm wagon Scale
Patent for a farm wagon scale. Illustration included.
Date:
June 13, 1911
Creator:
Graves, Henry Lewis
System:
The Portal to Texas History
Shade-Bracket.
Patent for window shade brackets.
Date:
June 17, 1902
Creator:
Winfrey, Edgar M.
System:
The Portal to Texas History
Gripping Device for Well-Boring Apparatus
Patent for a gripping device for well-boring apparatus that allows the rotary gripping rings to be reversed and used as new when one side has been worn down completely including illustrations and instructions.
Date:
June 15, 1915
Creator:
Myers, George S.
System:
The Portal to Texas History
Refrigerator
Patent for improvements for vacuum refrigerators such that cold air circulation and heat exclusion are improved, including illustrations.
Date:
June 27, 1922
Creator:
Knutson, William K.
System:
The Portal to Texas History
Fuel Rod Coupling
Patent for a new type of fuel rod coupling, or "sucker rod," meant to increase the durability of pipes and rods used in drilling operations.
Date:
June 3, 1919
Creator:
Sheldon, W. J. & Allen, C. H.
System:
The Portal to Texas History