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Process of Preparing and Tempering Slurry for Portland Cement.
Patent for improvements in the process of preparing and tempering slurry for Portland cement by expedite the process of production and to produce a uniform quality of cement. Detailed instructions included. No illustration.
Date:
September 29, 1891
Creator:
Kalteyer, George H.
System:
The Portal to Texas History
Drawer.
Patent to "provide the drawers of a bureau, a desk, or other piece of furniture with anti-friction devices to prevent their binding." (Lines 11-13) Includes instructions and illustrations.
Date:
May 15, 1891
Creator:
Baldwin, John. H, Jr.
System:
The Portal to Texas History