Standard Plan of Cast Iron Bearing Box for 60-Inch Wicket

http://library.lehigh.edu/omeka/files/original/4700b44d2983b4bc0ae655aec1eb9aa2.jpg

This schematic, dating from February 10, 1940, shows the standard plan of a cast iron bearing box for a 60-inch wicket, including new and repair work on the section of casting. It originated in the Office of Corporate Engineering and Real Estate Agreement of the Lehigh Coal and Navigation Company.