The Antique Wrench Patent Archive

Every grip the nineteenth century took on a nut

Pipe cutter

Patent drawing showing four figures of a 19th-century combination wrench and pipe cutter, including full side views with wooden handles, a top view of the jaw mechanism, and a small detached rotary cutting disk on a shaft.IMPROVEMENT IN COMBINED WRENCH AND PIPE-CUTTERBernard Donohue · September 25, 1877Patent drawing of a combined pipe-wrench and pipe-cutter tool showing a curved hooked head with a rotary cutter and pivoting dog, a threaded shaft body, and a long handle ending in an oval knob, with a separate enlarged detail of the adjustable chamfering screw and swivel joint.IMPROVEMENT IN PIPE-WRENCHES WITH CUTTERS.John Brewer · August 20, 1878Patent drawing showing two interchangeable attachments for a handle: Fig. 1 depicts a curved cutting blade with a hooked jaw and adjusting thumb-screw, and Fig. 2 depicts a serrated wrench jaw with a similar curved handle and slot for the pivot bolt.IMPROVEMENT IN PIPE-WRENCHES WITH CUTTERS.William L. Truland · September 24, 1878Patent drawing of a hand-held pipe wrench with a wooden handle, threaded shank, adjusting nut, and a jawed head containing two toothed dogs and a cutter blade for gripping and cutting pipe.IMPROVEMENT IN PIPE-WRENCHES WITH CUTTERS.Benjamin Franklin and James Gilberds · February 18, 1879Patent drawing of a monkey wrench with a stationary jaw B and sliding jaw C on a threaded shank, alongside interchangeable attachments including a pipe-threading die, bolt-threading die box, pipe cutter, and nut tap, each fitted with an arm L to insert into a socket on the sliding jaw.IMPROVEMENT IN MONKEY-WRENCHESBaziel Winans Lloyd · July 22, 1879