The Antique Wrench Patent Archive

Every grip the nineteenth century took on a nut

1850s hand tool

Patent drawing of a 19th-century screw wrench showing a side view with movable and stationary jaws, a threaded shank and nut, a hollow handle, and cross-sectional details of the strap attachment mechanism.SCREW-WRENCH.Jabez C. Terry · July 11, 1854Patent drawing of an 1855 screw-wrench showing a long handled tool with a fixed jaw, a sliding rack bar, a movable jaw with an eccentric shaft and thumb-piece, and cross-sections labeled a through f illustrating the screw engaging and disengaging the bar's rack.SCREW-WRENCHJoseph Hyde · October 2, 1855