: This is a mold conveyor manufactured by the Jeffrey Manufacturing Company of Columbus, Ohio. It was used to move metal casting molds in a foundry owned by the Westinghouse Electric and Manufacturing Company in Cleveland, 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.
: AL01528 Subjects
: Coal mines and mining -- Ohio; Inventions; Coal-mining machinery; Manufacturing industries--Ohio; Inventors -- Ohio; Ohio Economy--Economy--Labor Places
: Cleveland (Ohio); Cuyahoga County (Ohio); Columbus (Ohio); Franklin County (Ohio)