The Antique Wrench Patent Archive

Every grip the nineteenth century took on a nut

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Two side-by-side patent drawings of a 19th-century pipe wrench showing a long bar with a curved fixed jaw B at top, a hinged serrated jaw D held by a spring, a sliding case C with screw-nut J, and a wooden handle G secured by ferrule F and nut H at the base.IMPROVEMENT IN WRENCHIra Morse · April 21, 1868Patent drawing of a Capewell wrench showing four figures: an open handle with sliding jaw bar and coil spring (Fig. 1), a similar wrench with a fixed outer jaw and sliding inner jaw on a metal bar (Fig. 2), a cross-section through the jaw (Fig. 3), and a hammer-face end view of the second wrench pattern (Fig. 4).WRENCHGeorge J. Capewell · January 18, 1870Patent drawing of a 19th-century monkey wrench showing a solid head and corrugated stem with a sliding jaw locked by an eccentric lever, plus a cross-section of the grooved stem and jaw.IMPROVEMENT IN WRENCHESJohan Fredrik Nordquist · April 26, 1870Patent drawing of a wrench with a rack-toothed bar, a sliding jaw held by a spring-loaded pawl, and an adjusting screw at the base of the jaw, alongside sketches of alternate jaw and nut shapes.IMPROVEMENT IN WRENCHES.Frank Leo Delfer · November 26, 1872Side elevation of a monkey wrench showing the main lever A with fixed and movable jaws B, a threaded arm C locked by a half-nut D, a pivoted lever F, and a turned wooden handle G with a cam ferrule H,I at its base.IMPROVEMENT IN WRENCHESWilliam H. Crittendon · April 21, 1874Patent drawing of a wrench showing a stationary jaw A with toothed shank B, a movable jaw C engaged by a pinion b, a locking sleeve D with cam, and a stop-pawl E, alongside two cross-section views (Figs. 2 and 3) illustrating the locked and unlocked positions of the pawl and pinion mechanism.IMPROVEMENT IN WRENCHESBenjamin G. Martin · October 27, 1874Patent 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 watch key showing a tubular shank with a stem handle at one end and expandable gripping jaws driven by internal gearing at the other, with cross-section and end views illustrating the mechanism.Adjustable Watch-Key.William Haines · April 16, 1878Patent drawing of a 19th-century monkey wrench showing a handle with a fixed jaw, a sliding movable jaw, and a curved cam lever used to lock the jaw in place, with additional cross-section details of the jaw slot and grooves.IMPROVEMENT IN WRENCHESJohn M. Marty · September 10, 1878Patent drawing of an L.S. Starrett wrench showing a longitudinal cross-section with labeled jaw, screw, spring, and brace parts, plus a side view and detail cross-sections of the jaw and pivoting brace mechanism.IMPROVEMENT IN WRENCHESLaroy S. Starrett · February 25, 1879Patent drawing of a monkey wrench showing a sectional view of the sliding threaded jaw mechanism with a pivoting handle, pawl, and notched locking teeth, along with cross-sectional and perspective detail views labeled Figs. 1 through 5.WRENCH.Vincent J. McDonnell · April 30, 1889Patent 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, 1890