The Burleigh drill was brought out in 1866, and was covered by patents Nos. Edward W. Byrn.十九世纪发明进展.
The Hoosac and Mont Cenis tunnels greatly stimulated invention in this field, and among the notable drills of this class may be named the Burleigh, Ingersoll, and Sergeant. Edward W. Byrn.十九世纪发明进展.
Burleigh’s Compressed Air Rock Drill. Edward W. Byrn.十九世纪发明进展.