Complex sentence: The brakemen, firemen and others joined, and every industry in the city had been halted with the exception for the Pennsylvania Coal Company, unable to transport its goods without the use of rail.
Split into simpler sentences: The brakemen, firemen and others joined, and every industry in the city was halted with the exception of the Pennsylvania Coal Company. While miners continued to work, the company could not transport its goods without the use of rail.