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Whiffletree.

Description: Patent for a whiffletree for doubletrees and singletrees that is made of metal in its entirety. It consists of metal bars with end recesses, a middle brace, end caps with heads, hooks, a cross-bar or pivot, and rivets.
Date: November 8, 1892
Creator: Flatau, Louis S.
Partner: UNT Libraries Government Documents Department

Metallic Roof.

Description: Patent for a metallic roof that has "an improved means for securing the adjoining edges of the metallic strips together, whereby a tight water proof joint is produced and the metal strips securely attached to the sheathing of the roof" (lines 15-20).
Date: April 16, 1895
Creator: Flatau, Louis S.
Partner: UNT Libraries Government Documents Department

Whiffletree-Hook.

Description: Patent for whiffletree-hook that provides "a novel device of this character in which it is impossible for the trace ring or link to become accidentally detached, but which may be readily removed or disengaged from the hook when desired" (lines 15-20). The invention has a flattened circular plate.
Date: March 26, 1895
Creator: Flatau, Louis S.
Partner: UNT Libraries Government Documents Department

Car Wheel and Axle.

Description: Patent for a car wheel and axle made up of a built-up metallic wheel with dished side-plates that have flanged and riveted rims, hub-nuts, a lock-plate, hollow screw-threaded ends, hexagonal offsets, tubular journals, a tubular journal, and a radial lubricating feed-tube with a cross-head and a collar.
Date: May 14, 1895
Creator: Flatau, Louis Spencer
Partner: UNT Libraries Government Documents Department

Chemical Fire-Extingusiher.

Description: Patent for a chemical fire-extinguisher meant to "provide an improved acid-receptacle which will obviate the objects to the ordinary acid-bottles now in use" (lines 15-18).
Date: December 31, 1896
Creator: Flatau, Louis, S.
Partner: UNT Libraries Government Documents Department
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