Document qmawrexqXVxXrNGR3o0kJ1OGk

CataVits'a UKiON and VALVE dependability means LOWER M'AiNTE'NiiNCE: COSTS . . . wlthjan EXTRA margin of safety I HOT FORGED STEEL AND STAINLESS STEEL UNIONS STANDARD 1/8" TO 3" Cld<WfUi>| Prtitura up to 3.000 pound*. OOUBIE EXTRA HEAVY l/U" TO r Cal4-W*rkln| Prenura up to 8.000 pound*. Th* CaiawlM* #*t d*l|n |l* you perftct *eil l*r *vry IrwulUilan .. vn when ih# pip* U not prop>ly ali|nd .. with it* SS-dfIr< anflc on itt fvnal tnd to a ball an tbt HOT FORGED STEEL SWING CHECK VALVES ESPECIALLY AOAPTtD FOR HIGH 1CMPIRATURE 1 HIGH PRESSURE SERVICE! Far bailor ln|*ctln--cft|1ncrod la aullail iht bolltrl CINcItnl. a*Uy.acci*IVI*l *St your Induitrlal tupply distributor or writ* direct for a copy of BULLETIN 10-A them should be used. The bell nun** lecturer should determine ollowa^n tension. d If lightening falls to reduce belt slip. { page, the engine flywheel surface wj|j { have (o be altered in some manner. ThU 1 can be accomplished in two ways. Pint, the engine pulley can he covered witfc t old leather belting. This covering men ' be securely fastened to the flywheel t { prevent loosening. The method o! fastening will depend upon the flywhed ' construction. The power transmitted ' with this type oT arrangement U aboot ] 25% greater thon the present maximum capacity. The second method consiata o( ' "roughening" the engine .flywheel iur- : face enough to remove the polished metal. Extreme care should be e*er- < etaed to prevent removal of too mueh ^ surface metal. The surface should be <' such that it will not injure the belt. A ' portable grinder with a soft wheel b the best tool for the job. Grind to a - dull finish. New York City T C Hicks ) l Lag the Flywheel * Belt slip cait as eliminated by lagging j the flywheel with either leather or 6-ply ' Jrubber belling. Friction depends upon pressure, but adhesion depends upoa | surface contact The more the belt ad- * hcres to a pulley surface without strata- , ing. through too mueh tightening, the i better the driving power. i A leather- or rubber-covered pulley ! produces more friction than a polished . or rough iron surface. Good belt dress- Ing Increases belt adhesion. Friction of * leather or rubber upon leather is four to five timea greater than leather upon ; iron. I would suggest a legging material . that Is thin and pliable enough to be handled, and applied tight and smooth . to the pulley (ace. Decause of the width, it would be welt to use two separata pieces for a total of 28 in. Although thb calls for another row of bolts on the inside edge It is well worth It because the two separate pieces take care of the crown of the pulley much better than one 28-in. piece. I suggest the following materia): 2 pieces of double-ply leather or 6-p)y rubber belting, 14 in. wide and long enough to reach around the pulley. plot enough to make a 45-deg. butt joint. Anoka, Minn. H J Garmts CATAWISSA VALVE $ FITTINGS COMPANY 309 Mill Street CATAWISSA. PINNA. 154 (58a) unions Clean and Ro-oll Belt For Better Qrip on Pulley JM's drivk seems to sc capable of haw dting the horsepower requirements. A POWER January gyrol fluid drive for boiler feed pump control is getting MORE AND MORE POPULAR! laboratory demonstration permits observation of rotating elements In an American Blower type VS class 6 Gyrol Fluid Drive for use with o 3000 RPM 8,000 II.P. Boiler Feed Pump. Why? Recause Gyro] Fluid Drive saves power and is the proved means of providing the fine incre ments of speed adjustment required in the narrow speed range over which a boiler feed pump must operate. Interested? Send for descriptive bulletin 8010. a,American blower corp, Detroit michioan CANADIAN SIROCCO CO, LTD, WINOSOR* ONTARIO >OW|A . January 1940 r- -: \ AMERICAN BLOWER CKHaa Aeusaj Rsrnos & 4Ua4wd /tUvj CMut*a 155