. Electrical world. ELECTRIC.\LLY-DRIVEN MET.\L S.\W. size, and runs at about 725 , when on 120 volts. At this speedthe saw which is 18 inches in diameter makes about 45-2 turns perminute, the communication being through a spur gear and bevel geardirectly to the saw, where a sprocket engages in perforations in thedisc, thus applying power very near the teeth. The feed is con-trolled by friction and is adjustable so that the machine when oncestarted needs no attention until its job is finished. FIG. 3.— MOTORS. be found to compare very well with any direct-current station of
. Electrical world. ELECTRIC.\LLY-DRIVEN MET.\L S.\W. size, and runs at about 725 , when on 120 volts. At this speedthe saw which is 18 inches in diameter makes about 45-2 turns perminute, the communication being through a spur gear and bevel geardirectly to the saw, where a sprocket engages in perforations in thedisc, thus applying power very near the teeth. The feed is con-trolled by friction and is adjustable so that the machine when oncestarted needs no attention until its job is finished. FIG. 3.— MOTORS. be found to compare very well with any direct-current station of asimilar size. The repairs and renewals of the induction motors, especially thosewithout slip rings, which can be adopted for nearly all purposes, arean almost nominal amount. The accompanying engravings show thewindings of the rotor and stator of the smaller motors. Test in Wireless Telegraphy. On the morning of Saturday, De-cember 5, an interesting test in wire-less telegraphy was made betweenFort Wright, New Lo
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1883