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Packing-Ring.
Patent for packing rings featuring inner and outer rings that are transversely divided, with respective rings functioning in a unified manner, preventing independent rotative movement.
Date:
April 7, 1914
Creator:
Bryant, Clarence R.
System:
The Portal to Texas History
Rail-Joint.
Patent for the "improvements in rail joints, the object being to so construct and arrange the meeting ends of two railway rails as to provide interlocking members..." (lines 8-12). The patent includes specifications and illustrations.
Date:
April 14, 1914
Creator:
Evans, James B., Sr.
System:
The Portal to Texas History