UNT Libraries Government Documents Department - 5 Matching Results

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Switch Attachment.

Description: Patent for a switch attachment that consists of a derailing guard, a side track rail, an adjustable shoe that pivots next to the rail, a vertical groove in the end of the shoe, and a swinging free arm.
Date: April 3, 1894
Creator: Warren, Governor D. & Casey, James
Item Type: Refine your search to only Patent

Wire Twister and Tightener.

Description: Patent for a wire twister and tightener for wire fences. With this invention, "the fence-wire is caused to be contracted, twisted, and made taut" (lines 17-18). It is a set of toothed ratchet wheels that have v-shaped slots for the wire. Pawls act on the teeth, and springs and levers move the pawls.
Date: March 17, 1896
Creator: Stafford, George A.
Item Type: Refine your search to only Patent
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