Breaker may refer to the Anthracite coal, which probably was in larger rocks/harder than bituminous and needed to be reduced to a useable size. Most mining machinery today would do this. There was also a conveyor table where material was hand picked from the coal and removed. The coal processing done a the Champion facility, on the Montour Railroad, washed the coal. I assume the processing costs were absorbed in a better grade of coal.
Mike,
And that is where they get the term breaker. Breaking the big hard coal into smaller coal. That is what I didn't know if bituminous needed some much breaking as it needs cleaning. Thank you for your input!!