Canadian foundryman (1917) . ame, etc., butfhe current is kept more uniForm byavoiding unnecessary regulation. Kach regulator controls one regulator is controlled by a solenoidenergized by means of current from-cries transformers in the main hightension circuit. The regulator in turncontrols the armature circuit of the elec-trode motor to give it motion in either special steels, for steel castings, andalso for means of extracting chromiumand nickel from the vast quantities ofsteel turnings containing these alloys,which are being made in the munitionshops. For all these purposes t
Canadian foundryman (1917) . ame, etc., butfhe current is kept more uniForm byavoiding unnecessary regulation. Kach regulator controls one regulator is controlled by a solenoidenergized by means of current from-cries transformers in the main hightension circuit. The regulator in turncontrols the armature circuit of the elec-trode motor to give it motion in either special steels, for steel castings, andalso for means of extracting chromiumand nickel from the vast quantities ofsteel turnings containing these alloys,which are being made in the munitionshops. For all these purposes the elec-tric furnace has proved itself particu-larly valuable, and in the last threeyears the number of electric furnaces inuse in the world has increased withrapid strides. According to a recentcomputation there were on January , in the United States, 136 such fur-naces, in Great Britain 88, in Germany52, in Sweden 40, in Italy 29, in France20, in Canada 19, in Austria Hungary18, in Russia 16, and in other countries. VIEW OF AUTOMATIC REGULATOR EQUIPMENT FOB CONTROLLING ACT FUR NACE ELECTRODES. direction, or stop it. as required. Thiselectrode motor operates a hoistingmechanism, which in turn raises orlowers the electrodes. The regulator canhandle any amount of power for regu-lating purposes without impeding thetree play of the controlling mechanism,which is only in contact with the powermechanism for exceedingly short periodsof time and is otherwise perfectly action of a contact makingarm prevents the regulation from beingcarried too far in one direction. Thus ahigh load power factor and a uniformcurrent on the furnace is assured at alltimes. ELECTRIC STEELS THE war has speeded un in a remark-able degree innumerable developmentswhich were previously hanging fire orproceeding at a leisurely pace. Amongthese the electric furnace is the first half of 1914 electric furnaceswere certainly being installed here andthere in steel works, but in
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