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Chemical Composition
Benjamin R. Harris' legal patent from the United States Patent Office, on the chemical compositions he created which are products with hydrophyllic characters and explaining how he forms them.
Date:
December 3, 1935
Creator:
Harris, Benjamin R.
System:
The Portal to Texas History
Syringe
Patent for a syringe. Illustrations included.
Date:
December 15, 1908
Creator:
Hill, Hiram McClung & Farrington, Charles Oliphint
System:
The Portal to Texas History
Journal-Bearing.
Patent for a journal-bearing that has an open spring ring that contains the journal and antifriciton devices in its center. The spring ring contracts to its minimum circumference when the journal and antifriciton devices are worn out. There is also a bearing-ring seat that allows contractions "without altering the disposition of the load" (lines 61-62).
Date:
December 1, 1896
Creator:
Woodworth, Charles H.
System:
The Portal to Texas History