Instruction Sheet for Head Motion Adjustment of Overstrom Tables

Vertical Section Through Center of Head Motion Showing Extreme Upper and Lower Position of Pitman and Rocker on Shortest Stroke, The Copper Range Company, which was established in 1899, operated copper mines in Houghton and Ontonagon Counties. It merged with the Louisiana Land and Exploration Company in 1977. The collection contains records concerning a number of mines and mills owned by the Copper Range Company, but the vast majority of the records are from the Champion Mine and Champion Mill in Painesdale, MI, which operated from 1899 to 1967.
Abstract/Description: Vertical Section Through Center of Head Motion Showing Extreme Upper and Lower Position of Pitman and Rocker on Shortest Stroke
Subject(s): Copper mines and mining
Copper miners
Houghton County (Mich.)
Date Created: 1902-07