UNT Libraries Government Documents Department - 5 Matching Results

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Apparatus for Condensing Flue-Dust.
Patent for an apparatus for "condensing and saving the flue-dust passing with the waste gases through the chimney of lead-smelting furnaces." (Lines 9-12) Includes instructions and illustrations.
Nut Lock.
Patent for a new and improved nut lock. This design consists in "[t]he combination of the bolt, the nut having a dovetailed groove across its face, of uniform width throughout its length, and a recess at one side of said groove, and a key having tapered sides and sliding into the dovetailed groove from one side of the nut, said key having a pointed end to engage the bolt and also provided with a projecting part to be bent over into engagement with the recess in the nut" (lines 69-78).
Process of Treating Speiss.
Patent for "a new and improved process for treating speiss to obtain the valuable metals contained therein" (lines 8-10).
Railway-Construction Car.
Patent for "certain new and useful Improvements in Railway-Construction Cars..." (lines 4-5) including instructions and illustrations.
Windmill.
Patent for a windmill that qualifies as "a substantial and strong machine capable of withstanding the high winds of the Western prairies, which will be at the same time inexpensive and simple in construction, and which will automatically regulate itself in such a manner as to run with a uniform speed in all kinds of winds" (lines 16-22)
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