Document RJ8LVovbODEMrrNGQvObvK5xE

i-'S m '-.Uv NEW PLANT Spreader Stoker E257 Brruturtous coal-oukninc spreader stoker has (I) hydraulically operated coni pusher* (2).an electro-hydraulic drive (3) sectional (rata bar*. The electro-hydraulie drive hat few movinf parts and all operate in a hath of oil. An electric motor or steam turbine supplies power through a helical gear pump for hydraulic mechanism. A control valve regu lates oil supply to the hydraulic cylinder, which In turn controls rate of cool feed. Flynn and Enrich Co, SOI Hollldoy St, Baltimore 2, Md. Voltage Stabilizer E2S8 Duic.veo to pe ouiit in aa an integral part of electrical equipment, or for use as an accessory, the PR-6000 line assures . precise ae line-voltage stabilization. The device stabilises varying input voltage within 1/20 of a second, with an accuracy of plus or minus 03%. Stabilizer* having the same voltege and frequency ratings may be connected In parallel for higher wattage output. It it available In standard catalog models or eustom-engmeered designs, with terminal panels or with cord plugs. Raytheon Mfg Co, Waltham, Maas. EQUIPMENT i ; > ' Check Valve AtacMECic valve is identical in . and construction with the company's jfjX Cuthien valve found in hundreds of e pressor installations. Installed la i charge lino from an air or gas coopret check valvo prevents leakage of pre through compressor during the oft Valve guard and scat are firmly locked'k) a retainer ring that is easily aitaabl^ and takes sport. No screws or bolts t burn fast, no parts to jar loose aed di age the cylinder. Valve disks aad iprii are of stainless steel. Entire trait is_ contained and operation Is auieaadt Pennsylvania Pump & Compressor C Easton, Pa. Unit Hoater i j .. j ' Aiial-Flow. Pump E260 Labce-capacity isiaWlow pumps, designed to resist sea water and other corrosive liquids, are especially suited to condenser circulation and other aervlces requiring low-cost high-speed pumping of large vol umes of liquids. - Impellers and suction bells are cast of 25% chrome, 12% nickel stainless steel. Pump shafts are 18-6 stainless. Column and discharge elbows are formed of a high-test cost-iron con taining about 2% nickel. These pumps are best fitted for applications where any variation In bead is a reduction, and where the resultant Increase in capacity is not objectionable. Economy Pumps, Inc., Hamilton, Ohio. DmccT-mco with cas or No. 3 oil ffcj mebfoe operates at a reported 80 to &%T efficiency and gives out 550,000 Btu per Unit takes up 30-in. dia. floor spaee u requires only fuel, electrical and i gas connections. Thermobloc Dlv, PniS Daniel Corp, E. Port Chester, Conn.| Are-Welder Aia-cooled. engine-driven, 200-amp an welding machine has a welding ruga ef to 250 amp at 30 v, 50% duty cycle. P<5 Special, a lightweight, easily bandied eqoa ment, carries two outlets for lighting poses or to operate universal power toi Dept A 1777 P, Air Redoefloo Sag Co, 60 E 42nd Si, New York 17, N.jH Portable Boiler E259 Scir-cONTAtNED, rugged portable naturalgas-fired boiler for oilfield service develops 15,000 lb per hr of steam el 500 psl. This 10-lon steam generator is just over 8 ft dia and 9 ft high. Its stack goes 7 ft above the boiler proper. A gai pilot light ignites the natural-gas fuel. A built-in water pump driven by steam features the new equipment. Vapor Heating Corp, 4501 W |6th St, Chi cago 23, 111. Eleolronle Control E261 HtCHLY sensitive controls with thermo stats free of moving parts give a flexible air-conditioning system, ttys Its maker, Basie units consist of a room thermostat, duet and immersion thermostats, an elec tronic modulating motor, and an electronic relay. Additional elements may bo added with increase in size of area under control. Operation of control cornea from the fact that electrical resistance of a small coll of wire in the thermostat changes with change in temperature. This change is measured through tubes of an electronic relay and amplified lo where it can operate control motors to position dampers and valves. Mtnaeapolla-floneywell Regu lator Co, Minneapolis 8, Minn. Wciciiinc only 7.6 oi, the meter i as a dynamometer for low-value j> measurements, as wall as its plication as a follow-op motor. V7l| tionable backlash in a train of g**1* bo reduced by having this motor sppSI constant torque. -8 The motor has maximum toiqo* J3j suited and operates continuously these conditions without o*erheattaf;l can bo reversed completely in Q-l, 2 It la available In two types: 3000 tm 115 v, 60 cycles; and 5000 rpa Use coovonlent reply cards on page 178a lo sacura additional information on Ihasa now equipment Hams, Plcosa b*J sura to identify your request with the now-aqulpmeat key fetter, f, and number, as shown on the Items oba**^ M2 |56l) POWER Saplemb*^ Plant much Ss B#,,e, A i/ I boiler plant may cost up to ony figure you wish to name. But a boiler plant's rnoriA depends entirely upon bow efficiently, it operates. For Instance, bow many or how few shut-downs you have may depend entirely on the effectiveness of your water conditioning service. Correct water conditioning is a matter of careful and scientific control. W. H. & L. D. BETZ is an organisation of engineers sad chemists specialising in the solution of oil industrial water problems. Years of experience have made Bets water conditioning service scientifically correct. .. complete ... economical. Our staff of engineers will welcome the opportunity of discussing your boiler water problems . .. W. H. & L. D. BETZ, Gillingham and Worth Sts., Philadelphia 24, Pa. In Cansda: Beta Laboratories Limited, Montreal 1. September 1948 BtUL gyn?'a?''fiXcw