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Circular Railroad or Round About.

Description: Patent for novel improvements on circular railroads, and also to means for propelling a turn-table on which the carriages are secured.
Date: May 30, 1882
Creator: Sturm, William
Partner: UNT Libraries Government Documents Department

Composition For Roofing And Paving.

Description: Patent for a process "to produce a compound which is strong, tenacious, and pliable, which will not be affected by climatic changes, and which will resist the corrosive action of acids and alkalies; and to this end my invention consists in a compound composed of asphaltum, pine-tar, and oxide of iron, as will more fully hereinafter appear.” (Lines 8-15) Includes instructions.
Date: May 9, 1882
Creator: Lee, Archibald K.
Partner: UNT Libraries Government Documents Department
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