Document jNjm4eVGd7njMpVy8kvd7vMYk

JOB-ENGINEERED Protection! FOR HEAVY-DUTY INDUCTION MOTOR! /~\ne of industry's most pressing needs hos long been induction motors thol can be depended on to operate with year-in-andyear-out reliability on the toughest, heavy-duty jobs. It is a need that hos resulted In the brilliont engineering and sturdy 'construction of E-M Squirrel-Cage Induction Motors, with their indestructible rotors, long-life insulation and cool running, wear-resistant bearings. Along with the other extra-value advantages of these heavy-duty motors comes E-M job-engineered protection. This protection gives added assurance of reliable performance. Without it, there is constant danger under most conditions of water or other destructive agents falling into the vital parts of the motor and eventually causing damage and costly repairs. E-M Induction Motors are available with the following types ofjolxnginecred external protection: DRIP-PROOF--A strong, steel shield provides protection over a 30 arc, safeguarding the motor against falling liquids or.particles. Drip-proof con struction is recommended in conditions when the more complete protection of splosh-proof or enclosed construction is unwarranted. SPIASFWROOF--A full 200* ore of protection safeguards motors with splash-proof construction, ft is a type of construction found advisable in mony paper mill, chemical plant and pumping plant installations and is recommended whenever there is danger of splashing or flying particles, ss in hosing down floors. tnlood, Satf-Vaniilotlng or Separately Ventilated-- These are speciol types of motor protection recom mended when there Is excessive sir contominstion or high air temperatures, and it is desirable to either filter the air or to draw it from cooler, uncontaminated sources. .40 YEARS OF BIG MOTOR KNOW-HOW HELPS, BUILD OUTSTANDING INDUCTION MOTORS1 Heory-daty fedvefon Motor of drip-proof coftttrvciton It protected ogolnrt folDns portlde* end dripping llqvldt the St. *0pt lead Company mlna ol Uadwood, Mlttourl. A lltlle Improvement In designing gives a let In extra value b iht E-M drip.proof motor thawn Seva--Nota that the frtm* Here* .wi at the bottom to accommodate the eitra volume of diacharfe air In .Uni region. Thi* U another maiance vhere E-M'i eaperience in big motor Hmeering rcauha in more efficient wtign. Important thing* have been hap pening in induction motor design end conilruciion at Electric. Machinery ... thing* that mean a big difference in induction motor reliability, econo my, rmaintenance. Write now for the ffuullli.tory . . . jutt wh for your pub- iicationi IB9 end 190. IUCTRIC MACHINCAY MfO. COMPANY, MINNIAPOLIS, MINNISOTA .Three 400 hp, 1600 rpm tplo*-proof E-M Melon d/W* bootm pvmpt * Si SeutMond Paper MDb plent of loffcbv Teao*. Regalar hotCng-down optfoiten can't rovdi E-M Motor* protected In Ml 300* ore ogaM domeg*. of 3-1000 hp. 1800 rpn.4160 volt SqdrreK*^ " hduclton Motor* for Tesoi Pipeline Co. to opart*? 'location* M*ri umowndlns air b artoiMMC Hydrogen Setphldc pat, weak odd and abratM POWER Osesb*f ,,4*j *0W(, December 1946 /" L BIG MOTOR ENGINEERING