Document 15QRr8QkkOg020qEv65Lby7DX

NEW EQUIPMENT . tide. There is no Interruption ol cotl Iced, loss of- pressure or reduction in' steam load associated with ash discharge, which is eominoooa. The Centrafire principle deliberately provides a deficiency ol air lor eombut* "tion of the fuel as it descends to, and rides over, the centra) link-grate sec tion. .This Mga*producerM process causes low-velocity roonoiido gases, hiving low particle-carrying capacity, to rise abo*o the central fire nne. Upon leaving this tone, these gases m!t thoroughly with ad ditional air for burning to earbon dioxide. High-pressure air for this purpose enters through staggered nooks In the sidewalk, above the trajectory of incoming fuel. The turbulence required for thorough miiing is created in the atmosphere above the spread ing tone--out of the regloo where coal is In suspension. An increased supply of metered primary air k admitted through side areas of the grata and the ash-dis charge grates. Two long-stroke tlow-epeed rams feed coal to the rotor. A eoal-feed equaliser piste driven from the rotor oscillates across incoming fuel to assure continuous feed whether coal is wet or dry. One constant-spaed motor or turbine supplies oil pressure for all controls and drives. Eliminating of) chain or other driven, this completely hydraulic system permits maintaining accurately any preset fuel-air ratio. Weattnghnnaa Eleelrie Corp, Box 868, Pittsburgh SO, Pa. Synohronsai Motor Avaiuble in batincs from 10 to 1,000 foS this line ol synchronous motors j welded-eted, bos-type sutor constnctlraU. addition to steel-fabricated, all-welded retM spider assembly. ? Departing from the standard 2|ho-1 b lngs, these motors use sleeve beatbgTej the pedestal typo. Hence bearings, cvj proportioned l-to-l, the length of the bari* ing being equal to dkmeter of the This new design not only shoneat ovriel length of the motor, but also effectively & cresses bearing temperatures. Elect Produets Corp, 1729 Qarkstoao.l Cleveland 12, Ohio, Refrigeration ReNUCEBATIXC SYSTEM cools air I freezing point ol water without fomdog frost or Ice on refrigerant colls, claims its manufacturer. No-Fioit method coesbui.ef1 (1) spray cooler (2) refrigerant esDeosjl and concentrator (3) condenser (4) *ecaj pressor. Niagara Blower Co, 465 Le Ington Avo, New York 17, N. Y. Needle Valve E3J7 Micjiomstch needle valvi is a modification of the company's compact forged body In dustrial valve design, but has 5/lb-in.-40 stem threading for dose adjustment and a long 10-deg Included-sngle tapered needle for fine metering. Standard valve b of highstrength brats, but aluminum alloy bodies can be supplied. Needle sterna ore ma chined to close tolerances In durense. Vahe is available In | and fin. sices with eight port combinations of male and female, pipe and tnbe connections. Porker Appliance Co, 17S25 Enelld Ave, Cleveland 12, Ohio. Instrument Cabinet fWtj Steel caoinet of packaged-unit dtdjn li air-conditioning instrumenution hsrdu range Indicator that gives dry-balb r- dewpoint temperature readings. A switch connects indicator with ootiiffl resistanea bulb circuits for temperst! measurement and DrvKti cireolti-lor point measurement. Capacity of tkeps^T is 96 circuits or two clreuit wnoectiMJ of 48 each and an automatic off podtiw m center. Foxboro Co, Foxboro, f Polley Lading 338 Engine Air Starten E336 New uhe of starters lor gas, gasoline or diesel engines Includes five aloes, develop ing from 3 to IS hp on 100-psi air. High torque eharaeieriitie of piston-type motor, maker claims, suits it particularly for diesel applications involving high starting toads. Five-cylinder radial design provides uniform torque. An esdusivo feature is the air-actuated starter pinion that, when air valve Is open, automstlealiy engages ring gear a split-second before starter begins to crank the engine, thus assuring positive and safe engagement. Cordner-Donver Co, Quincy, 111. ArruEn wmtoor iuvets, bolts or beat, Condtrrilo all-purpose waterproof lagging dries within ten hours at room tempera ture. In addition, it is weather- and cor rosion-resistant, unaffaeted by sulpburiq add, otidlxlng agents, soaps, alcohols, etc. When dry, it Is odorless, tasteless, nontoxic, end non-flammable. . This pulley lagging provides o frictional aurfaea that Increases transmission efficiency and belt life, by eliminating belt slippage. It is suitable for crown, split and fist pulleys, and for use with leather, cord, wire-woven or rubber belts. Lagging It available In units consisting of 70i4(Mn. tresied fabric with sufficient compound for application and in rolls ot any width up to 42 in. It may also be supplied cut to size if pulky dimensions, are given. Conderslte Engrg Corp, 2019 Chancellor Si, Philadel phia 3, Pa. Regulated Rectifier Tins fully aicuLATio aicnmv either electronic control fo,.e,lrcZi response or magnetic amplifier *** ^ raeuum-iube elimination, isdttVf^jB use in automatic, unattended .^2 chargers: Urge, automatic pUtj ground power; and as s central * ,VB system supply. . -jjcrJ Standard model, ode! cum3. from 5 <0 10,000 m|> ' tween. 10 ind 500 .. Voll,' lr< kept to plus or minus one-half ~ Use cofivonknt reply cords on poo* 206a to secure additional information on Ihoso now equipment iwtwW-T aura fo Identify your raquast with tho nowraquipmont hay (attar, t, end number, ot shown on the *** jj 141 (649) Ocio*'.'] POWI* ^OMB years ago Revere said that "Bubbles . have teeth." It is still true. Air bubbles in a condenser can eat away at the tubes quite tepidly, and become a cause of failure with con**quent re-tubing. Air-entrainment, as it is called, tctf |Q several ways, all destructive to tubes. Air contains oxygen, which directly attacks most petals, forming oxides. Carbon dioxide in solu- dissolves these oxides. That is not all. Air hies add to the erosion effect of turbulent The higher the velocity, the worse the *** flod the more swift and serious is the ^hination of erosion and corrosion at points ' _ 8f*atcst disturbance. Every effort should be nerore to keep air from being carried cooling water. If you are troubled by frequent re-tubing of your condenser, get io touch with Revere; but first save a few samples from failed tubes for examination by our labora tories to determine the cause of failure. Many users of condenser tubes have found our col laboration exceedingly valuable, and we are always glad to cooperate in an effort to extend tube life. REVERE COPPER AND BRASS INCORPORATED Feaaded hy Pant Revere h 1801 230 Park Avenue, New York 17, New York fiiilh: Bahhaart, Md.f Cbieagt, ///.,- Detroit, Mitb.f Stir Be^ferd, Matt.;Rome, N. K-ii/n Offitain Principe!Cities, Dhtrihatert Everywhere.