Canadian foundryman (1917) . r the bolt head or nut to beremoved. The wrench may either slipor round off the nut. Be especially care-ful in working on rounded nuts and re-place them with new ones at the firstchance. Dont cut rivets, holt heads, ornuts off until you have placed a shieldto prevent them from flying, or have asign or a watcher to warn men oi thedanger. When chipping or cleaningcastings always wear goggles. (SeeFigs. 36 and :i7. | Regular inspection of hoists andskips, brasses, bells, sheaves, hoppers,and valves, may prevent sudden shut-downs and extra hazardous work. Mem-bers of r
Canadian foundryman (1917) . r the bolt head or nut to beremoved. The wrench may either slipor round off the nut. Be especially care-ful in working on rounded nuts and re-place them with new ones at the firstchance. Dont cut rivets, holt heads, ornuts off until you have placed a shieldto prevent them from flying, or have asign or a watcher to warn men oi thedanger. When chipping or cleaningcastings always wear goggles. (SeeFigs. 36 and :i7. | Regular inspection of hoists andskips, brasses, bells, sheaves, hoppers,and valves, may prevent sudden shut-downs and extra hazardous work. Mem-bers of rigg-ing and millwright gangs,being in every part of the plant in theirregular work, should know more abou:many obscure and not readily apparentdangrers than most of the furnace should be a part of their duty to re-port any dangerous practice or condi-tion. There are many trivial sources ofaccidents, so many that no one man orcommittee can see them all, or, in somecases, even know that they exist untilinjury ARC TYPE ELECTRIC FURNACE SHOWING ELECTRODES,POURING DOORS. CHARGING AND ing line protective equipment, switch-hoard, step down transformers, furnacetilting motors, motors for adjusting pos-ition of electrodes, and a regulating sys-tem for the control of the electrodemotors. The type of motor employed for oper-ating the tilting mechanism is shown inone of the accompanying or motors are suitable,having characteristics similar to thoseused for hoisting work. The controller isof the reversing type and a motor brakeis used to prevent over-travel of thefurnace and hold it in any desired posi-tion, a complete line of motors from 15to 150 horse-power being available forthis work. Where automatic control of the elec-trode is desired, a motor operated hoist-ing mechanism is provided for each elec-trode. As the motors are mounted on the furnace which tilts, the bearings arebuilt with special lubricating direct curr
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