Adjustable Handle-Bar for Bicycles. (open access)

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. (open access)

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. (open access)

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. (open access)

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. (open access)

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 (open access)

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. (open access)

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 (open access)

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 (open access)

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 (open access)

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