Joseph Francis Joy (September 13, 1883 – February 1957) was born in the small mining town of Cumberland, Maryland.

His major inventions were the first continuous mining machines recognized as milestones in the history of underground mining mechanization.

[1] He had pioneered new concepts in hydraulics, modern control and power circuits, trackless mining equipment, efficient gearing and seal designs as well as dozens of other "firsts" in the industry.

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