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Wrench.

Description: Patent for a new and improved wrench. This design "has for its object to provide a tool especially adapted for a pipe-wrench, but also capable of use as a monkey-wrench. A further object of the invention is to construct a wrench with practically two handles, one of which is capable of use as a lever to disengage the jaws from the pipe and to adjust the upper jaw to and from the lower jaw" (lines 8-16).
Date: August 5, 1890
Creator: Kasch, Friedrich Wilhelm
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Electric Insulator.

Description: Patent for a new and improved electric insulator. This design "comprises a pair of fixed metal jaws or flanges having a common base of the same material integral therewith, and having between them a recess or groove for the reception of a wire, a key seat or slot passing through both jaws near their point of permanent union, and rounded off or made with a concave surface at its outer side, and a key or wedge convexly rounded on one side of its surface to correspond with said slot and adapted to… more
Date: August 12, 1890
Creator: Dunbar, John K.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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