Document mBrbzvaVqN8krwoJQQa7rDp9Z

r We Snuite Ijou TO TEST NICHOLSON STUM TRAPS FOR LOWEST STEAM LOSS LARGEST CAPACITY BULLETIN 1047 or we Sweol's V. See why art increasing number of Amer ica's leading plants are standardizing on Nicholson traps. Test trap gtadlf sent. Comparative tests by targe trap users ttiov: record lovt for (team vaste; 2 to 6 tieias over age drainage capacity; operate on lowest tem perature differential; so freese-opt; greater simplicity <fewer spore parti to itoci). S types for every purpose; ilie Vu to 2"; pmtare to 225 Bis. Control Valm lor All-Mediums For steam, water, air, got, ell; and for all types of operetta*-- . lever, foot, solenoid, motor. Choice of 6 metal combinations to meet specific needs. Pres sure! to 5000 lbs. CATALOG 546. W. H. NICHOLSON & CO. ns ontcoM strut, wilkis-barm, pa. {Continued from page 182) . grams should fall near the counter p sure line by. end of stroke. Excess release pressure as on u, will oppose rather than osilst coopk sioa. To remedy, eccentric should:' odvonccd to speed opening of steam a exhaust valves, making roleasa and ec preasion earlier. If this results in`t_ much lead, steam-valve roda can bead, justed so these valves have more l over (heir pone.. In diagram marked crank end, expansion line rises considerably a . . the theoretical curve. This indicitrija' leaky valve, which allows steam to tnttf ofter cutoff. Although on expansion line that closely follows the thearetiui' curve is not positive indication'tintvalves and piston ore tight, steam 'moy leak in and out of cylinders at the sads time, producing a card that eppetn satisfactory. . I advise checking {!ajj valves for lightness, also steam cylinder', piston and rings. Clearance should he cheeked kept low, since smaller clearance rei __ in greoter pressure due to the smillj final volume obtained. It is good practice to give more 1 to an engine at bottom center in o peniation for the angularity of connect ing rod, weight of moving parts tod ft' duced area of piston because of li piston rod.--Pan! Dovenar, Brooklyn N.Y. Use Dial Indicator To Check Bearings At present, I am in charge ol i same type compressor engine. Aodw coincidence it has the same defect, tir ing a heavy thud at bottom center. Plans are now under way to correct rt* trouble. Records of this unit installed fa 1 show main bearing trouble duriogi^f life end replacement of one bn1^ crankshaft Easiest and most aeeu way to check radial play of mein 1>. ings is with a dial indicator. AMscb' dtcator to lower hetf of bearing wtM stiff bracket that holds indicator e top center of shaft Try the todieiwjjjj maximum number of revolutions ***%. wfU turn. Set indicator so hand f! up .010 to .015. When point rest* shaft, so any movement of shaft wUlj* damage the instrument by o*er-ffj. set zero on the dial indicator. Start,?? up and gradually increase ip*?** $5 movement of needle to lha P0'nl f8 maximum pound la produced, r ment of indicator hand shows "ta foil of shaft during each rcvolut^j-fc method worky well on slow-spceo,' . glnex.---S-C Page, Buffalo, fl* -V POWER Ocb*'/ The partitions between, passes in the water heads of feedwater beaten are a fruitful source of leak age that can't be detected. The head cover is a literal "iron curtain" behind which you can't see .short-circuiting of water between passes. Gtucom-Russell offers designs of feed- water heater stationary and floating heads in which this inter-pass leakage CANT occur. How? By making the differential in water pressure between the passes help to keep the partition joints tight instead of tending to force them apart. The sketches tell the story. It's one of many in* ittnces of G-R pioneering in the design of feed water heaters. Write for bulletin describing these beaten and their many distinctive features that give you benefits you can't obtain in other feed* ***** heater designs. THE GRISCOM RUSSELL CO; Ml MADISON AVUTOB, NEW YORK IT, N. Y. GRISCOM-RUSSELL Pi&nee/ti In etteat ^tva+v&fje/i Ap^a^cUuA. Odobtr