ELECTRIC WELDING OF RAILS IN PLACE. Fig. IREVOLVING TRANSFORMER SEEN AT THE SIDE AT WHICH THE CONTINUOUS CURRENT ENTERS. Fig. 2THE SAME SEEN AT THE SIDE FROM WHICH THE ALTERNATING CURRENTS START., scientific american, 1894-01-27
ELECTRIC WELDING OF RAILS IN PLACE. Fig. IREVOLVING TRANSFORMER SEEN AT THE SIDE AT WHICH THE CONTINUOUS CURRENT ENTERS. Fig. 2THE SAME SEEN AT THE SIDE FROM WHICH THE ALTERNATING CURRENTS START., scientific american, 1894-01-27
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