Pipe wrench Pipe wrench A pipe wrench is any of several types of wrench that are designed to turn threaded pipe and pipe fittings for assembly (tightening) or disassembly (loosening). Especially in North America, the Stillson wrench or Stillson-pattern wrench is the usual form of pipe wrench. (The name comes from the original patent holder, who licensed the pattern to multiple manufacturers; the patent expired decades ago.) Another type of wrench often used on pipes, the plumber wrench, is also often called a pipe wrench, depending on locale. The Stillson type is an adjustable wrench/spanner with hardened serrated teeth on its jaws;
What Cheer, Iowa newly formed What Cheer Drill Company. Within the decade, the What Cheer Drill and Miners' Tool Company was selling equipment in mining districts around the nation. Alexander Walker, originally with Walker & Thompson filed numerous patents on mining equipment, most of which were assigned to the What Cheer Drill and Miners' Tool Company, later named the What Cheer Tool Company. In 1903, the Starr Manufacturing Company, American Mining Tool Company and the What Cheer Tool Company agreed to a union wage scale with the International Brotherhood of Blacksmiths. At the time, the blacksmiths local 259 had just 17 members. In