This photograph shows the discharge end of a longwall coal conveyor built by the Jeffrey Manufacturing Company of Columbus, Ohio in use at the Montevallo Mining Company, Birmingham, Alabama, 1918. It was used to move cut coal from areas in a mine where railroad tracks for coal cars could not be laid. Conveyors could be lengthened as needed
Steel apron conveyor made by the Jeffrey Manufacturing Company of Columbus, Ohio in use at a steel c...
These coal-loading booms are using steel apron conveyors made by the Jeffrey Manufacturing Company o...
Coal picking conveyor operating in Welch, West Virginia, March 10, 1912. The conveyor was made by th...
24-B longwall cutter made by the Jeffrey Manufacturing Company of Columbus, Ohio in use at the Bloct...
Sectional loader made by the Jeffrey Manufacturing Company of Columbus, Ohio. Sectional loaders were...
Steel apron conveyor made by the Jeffrey Manufacturing Company of Columbus, Ohio being used to move ...
This power house at the Columbus Railway Power and Light Company used many conveyors that were made ...
Sectional loader made by the Jeffrey Manufacturing Company of Columbus, Ohio. Sectional loaders were...
This coal tipple conveyor was made by the Jeffrey Manufacturing Company of Columbus, Ohio. The men i...
This coal tipple conveyor was made by the Jeffrey Manufacturing Company of Columbus, Ohio. The men i...
Miners using an underground coal conveyor made by the Jeffrey Manufacturing Company of Columbus, Ohi...
This photograph depicts a pivoted bucket conveyor manufactured by the Jeffrey Manufacturing Company ...
Twin retarding conveyors built by the Jeffrey Manufacturing Company of Columbus, Ohio at the Relianc...
24-B longwall cutter made by the Jeffrey Manufacturing Company of Columbus, Ohio in use at the Peerl...
Steel coal tipple built by the Jeffrey Manufacturing Company of Columbus, Ohio at the New Byrne Coal...
Steel apron conveyor made by the Jeffrey Manufacturing Company of Columbus, Ohio in use at a steel c...
These coal-loading booms are using steel apron conveyors made by the Jeffrey Manufacturing Company o...
Coal picking conveyor operating in Welch, West Virginia, March 10, 1912. The conveyor was made by th...
24-B longwall cutter made by the Jeffrey Manufacturing Company of Columbus, Ohio in use at the Bloct...
Sectional loader made by the Jeffrey Manufacturing Company of Columbus, Ohio. Sectional loaders were...
Steel apron conveyor made by the Jeffrey Manufacturing Company of Columbus, Ohio being used to move ...
This power house at the Columbus Railway Power and Light Company used many conveyors that were made ...
Sectional loader made by the Jeffrey Manufacturing Company of Columbus, Ohio. Sectional loaders were...
This coal tipple conveyor was made by the Jeffrey Manufacturing Company of Columbus, Ohio. The men i...
This coal tipple conveyor was made by the Jeffrey Manufacturing Company of Columbus, Ohio. The men i...
Miners using an underground coal conveyor made by the Jeffrey Manufacturing Company of Columbus, Ohi...
This photograph depicts a pivoted bucket conveyor manufactured by the Jeffrey Manufacturing Company ...
Twin retarding conveyors built by the Jeffrey Manufacturing Company of Columbus, Ohio at the Relianc...
24-B longwall cutter made by the Jeffrey Manufacturing Company of Columbus, Ohio in use at the Peerl...
Steel coal tipple built by the Jeffrey Manufacturing Company of Columbus, Ohio at the New Byrne Coal...
Steel apron conveyor made by the Jeffrey Manufacturing Company of Columbus, Ohio in use at a steel c...
These coal-loading booms are using steel apron conveyors made by the Jeffrey Manufacturing Company o...
Coal picking conveyor operating in Welch, West Virginia, March 10, 1912. The conveyor was made by th...