: This is a photograph of a portable rubber belt conveyor made by the Jeffrey Manufacturing Company of Columbus, Ohio, owned by the Modern Foundry Company, of Cincinnati, Ohio.
The Jeffrey Manufacturing Company, also known as the Jeffrey Mining Corporate Center, was established in 1876 as the Lechner Mining Machine Company in Columbus, Ohio by Joseph Jeffrey and Francis Lechner. The company was the number one manufacturer of coal mining machinery worldwide until the mid-twentieth century. View on Ohio Memory.
: AL01359 Subjects
: Conveying machinery; Coal mines and mining -- Ohio; Inventions; Coal-mining machinery; Manufacturing industries--Ohio; Inventors -- Ohio; Ohio Economy--Economy--Labor Places
: Cincinnati (Ohio); Hamilton County (Ohio)