Document Qk9XB7QXx7LOEQrqDEQv0qm28

PRACTICAL IDEAS...here's the trading post hr and maintenance short cuts . STIVE IIONKA. Associate MHor pulley endwise to cover length o( rao^ surface, also to prevent scoring, tura^' spindle at Intervals against rotation |` pulley. To insure roundness we changed; emery cloth frequently.. As the ja progressed, we gained confidence ji opplied pressure to belt to secure msi?; imum grinding. Motor was also speeded up. Job turned out to be excellent, l*' sides saving time.and expense. V Srnojs* Glace Day, Neva Scotia ^plates Adjust Coal Putb button twiretiet open rttm 4cprttta4, apotot/nf magnetic twite* p*4 bro*r is dumped into ehuie, sketch, by 'double shaker. We could never set i&^sKiker completely open because too CVooeli.coil dumped on belt at one time. Store Flies To Protect Edges .^Then coal would roll off. ?Yh.We corrected this by welding two i* V' lsvcUng plales at end of chute aa shown. Limit Switch Protects This Hoist In many shops the job of storing files is a problem. In maintenance de partment tool'Cribs, files are some* timea laid across pegs or In individual racks. More often they get thrown to gether, thus losing teeth or dulling their edges. A simple but effective way to store files is shown. Make a email ply- wood pigeon-hole box hinged to the back of a drawer. In this way files are easy to remove or replace, yet remain separate and sharp. Whatever method is used, separate the files. C F Burnley Oakland, Calif. Seporating Oil and Freon rVlyPUtes are at an angle to restrict coal ^"dumping on bell. They are of %-fn. LVi^piiie Iron, and welded to chute. *$-' '`Because we store a lot of coal in sum- Dkcause labyrinth seals in our Frai centrifugal -compressor for air confi-^ tionfng were bad, Freon mixed will circulating oil. So every month we hd er; this improvement eaves us about Three weeks each summer, as shaker is 'j^nb'w. run full speed, without spilling JtryVejcaoaaLl--PPiistes cou'ld' 'be made adjustable. to extract gas from cooler and replies J C~OLUN Clinton, Iowa with new gas. -.1- Here's how we separate gas fron^oQ We have cooling washers besides eej ditioning equipment room, In which *r| located centrifugal compressor (300-kp) Most electric hoists, especially the monorail or hooked-up type, have a trigger arm, which is tripped by the rtaihg hook that has a ewiteh for In stant. slopping and brake operation. This prevents overwind, but does not take care of equally dangerous condi tion of a loaded hoist running out too far or slipping onchor end of hoisting rope. So we made our own improvement. Sketch shows a foolproof design I filled to a 5-ton hoist. It gives positive control to desired limits of hoisting and lowering. Stretching hoisting rope does not interfere with original setting and adjustment. It's also compact, not af fected by swinging load and there's no chance of missing or fouling lower hook block, etc. We wouldn't he without. F C Salter Vancouver, B.C. motor) and air compressor (60-hp ni tor) for cleaning. In equipment roots? temperature is high, 95 F, whereas washer room, it Is only 60 7. We placed drum of oU-and-gsi nit? lure on a weighing scale In. alr-coa^ tioning room,- sketch. Then we'eo^j nected this drum with a %-in. pip* an empty drum on other aide of wxfijj Inside washer room. Heat makes Fresi^ boil In drum and condenses In drsi Polishing Scored Shaft of Turbine in cool washer room. $ We deiermine amount of oil in <,;l tore by weighing a sample of mixty then we weigh Just the oil in saiephj Oil Leakage wakko along a motor shaft hut we h by cutting a groove in the Testing Thermometers In Your Plant During periodic internal inspection of our 18,800-kva turbojet, wc found that shaft (where it passes through gland on exhaust end) was badly scored by carbon sealing ring. Job was to polish this rough section before new carbon rings were fitted with right clearance. As time was limited, and no suitable lathe to take large spindle, we had to improvise rig, sketch. We found a 20-hp dc motor. Its speed could be controlled hy resistance. I scrounged only available belt from another deportment ond had a wooden split pulley made oh short order, 8 in. larger in bore than shaft. We fitted it with emery cloth as shown. Assembling whole rig with motor and apindle securely blocked, we slowly (and with apprehension) started the motor. Shaft began rolling OK. Oiling liberally, we moved revolving after oil gas boils out. By using 8^c,ch- Crove is cut around method and weighing drum, we kw*^ Yt1:entire* circumference and when process is finished. ; W^'pbeed about 3/16 in. from the bear- To speed boiling, wc shine four ^ A drain hole drilled in frared lamps on drum in air-conditio*jj k connected to a Vfc-in. ing equipment room. j. ^ ' i'^creeP`ng along the-rotating System is so successful we have >*(, * thrown by centrifugal force about (2000. Now we have new i^j roo?e' then drains off into and oil mixing with gas is reduced Xj *** No more wasted oil now. a minimum. This operation Is ,4 E Quintero. Dauta Cab* j "" Shipley, Eng. At times you have to know if an ordi nary wall thermometer is accurate. A simple check is to submerge the ther mometer's bulb end in an open-top container, partly filled with cracked ice ond water, os shown. II the thermometer reading drops to 32 degrees and re mains there, the thermometer is rea sonably accurate. To teat the boiling point of a hot- water thermometer, heat a container half full of water until the water boila. ' Have bulb and -of thermometer sub merged below the water's surface but a couple of inches from the container's bottom. H temperature reading of the thermometer reoches 212 degrees and remains there, thermometer la accurate. T Trail CatontvUle, Md.' (Continued on page ISO) MV PUN! OPERATION ANO MA1NIENANCE SECTION PUN! OPERATION ANO MAINTENANCE SECTION