The Antique Wrench Patent Archive

Every grip the nineteenth century took on a nut

Toothed jaw

Patent drawing of a 19th-century pipe wrench showing a long bent bar with a hinged toothed jaw, sliding collar, adjustment screw, and small detail views of the spring-loaded pin and wedge mechanism.WRENCHGeorge B. Phillips · May 28, 1861Patent drawing of a 19th-century pipe wrench showing five views: two side elevations with toothed jaws and a curved pivoting claw, a rear view of the split prongs, a cross-section revealing the internal spring mechanism, and a final view of the wrench clamped onto a pipe.IMPROVED PIPE-WRENCH.James R. Brown · October 18, 1864Patent drawing of a hinged pipe wrench with a long slotted lever, two toothed curved gripes labeled B and C, a sliding shoulder S, and a hinge joint H, shown both open (Fig. 1) and closed around a pipe P (Fig. 2).IMPROVEMENT IN PIPE-WRENCHESDaniel Barnard Cook · December 5, 1876Patent drawing showing a pipe wrench lever with a toothed end, several interchangeable curved toothed hooks, a spring ratchet-catch mechanism, and two views of the lever and hook assembled in open and closed positions.IMPROVEMENT IN PIPE-WRENCHES.Eliezer Rees Mathews · April 17, 1877Patent drawing of a pipe wrench showing a long wooden handle attached to a shank with a fixed toothed jaw and an adjustable sliding bar bearing a spring-mounted wedge-shaped jaw, with a cutaway section revealing the internal ratchet and spring mechanism.IMPROVEMENT IN PIPE TONGS OR WRENCHES.Edward B. O'Kelly · August 28, 1877Patent drawing of an adjustable wrench with a toothed alligator-style jaw at the top, a long bar with a sliding sleeve, and a pair of curved jointed spring levers forming a handle that closes the jaw when squeezed, shown in side and top views alongside cross-section details of the joint and threaded adjusting nut.IMPROVEMENT IN ADJUSTABLE WRENCHES.Seth E. Hurlbut · December 23, 1879Patent drawing of a pipe wrench showing two toothed jaws (A and B) joined by a threaded lever (C) passing through flaring slots, secured by a convex nut (E), with a spring (F) shown between the jaws and a separate detail view of the nut in Fig. 2.PIPE-WRENCH.Andrew J. Curtis · April 8, 1890Patent drawing of a combined pipe and nut wrench showing two hinged jaws, one smooth curved and one with a corrugated removable face-plate, connected via a pivoted link and toggle mechanism to a long handle, with numbered reference lines pointing to each part.COMBINED PIPE AND NUT WRENCH.Robert James Thompson · July 7, 1896