spring coup- ling-bar is provided for every wagon, also suitable coup- ture and two field/coils. The field frame is of cast quires not only shearing but also undercutting. When steel and surrounds the field coils and armature, pro- ling arrangements at the tail end, either for yoking up shearing is… … to the thickness of the vein in which the especially compact machine. The illus- Fig. 2—ELECTBIC, CHAIN, CUTTING MACHINE TTIiDEBCVTTING THE COAL, machine is working. tration. Fig. 3, shows a machine whose It is usually found possible to cut from total height is only 18 inches ; its width, 50 feet…
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