. Electrical world. vwvwwwwwwvwv. KOWALSKI AND MOSCICKI METHOD OF PRODUCING NITROGEN, ETC. alternating current to mains across which are connected in parallela main induction coil and a number of groups of induction coils, con-densers and air-gaps, in a manner clearly seen from the the air-gap a series of sparks in the nature of an arc is pro-duced, and the desired nitrogen compounds are obtained from the air. The inventors give the following data taken from a plant for theproduction of nitric acid: The secondary circuit had an of50,000 volts, producing spark arcs of


. Electrical world. vwvwwwwwwvwv. KOWALSKI AND MOSCICKI METHOD OF PRODUCING NITROGEN, ETC. alternating current to mains across which are connected in parallela main induction coil and a number of groups of induction coils, con-densers and air-gaps, in a manner clearly seen from the the air-gap a series of sparks in the nature of an arc is pro-duced, and the desired nitrogen compounds are obtained from the air. The inventors give the following data taken from a plant for theproduction of nitric acid: The secondary circuit had an of50,000 volts, producing spark arcs of about 24 cm. length in each each consumption branch the current was amp. and the fre-quency about 6,000 cycles per second, while the frequency of the al-ternating current in the secondary circuit outside the consumptionbranches was 50 cycles per second. The apparatus required 33 hp,and with these were obtained 1,155 grams of nitric acid per hourfrom atmospheric air; that is, 35 grams of nitric acid per was


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883