Document o2zzw1qJ6V27z2zMkE6DXK3r

EsP^' PLANT EQUIPMENT NEWS Your information cenJJ^|Pj|fieW products designed to solve plant problems Pobllihad monthly ** o ****** Hermetically Sealed Nickel-Cadmium Battery Bonsla Long Life* Little MHhilcnmic 8S8 * New de standby power unit, the Voliobloc, uses reeled nickel-cadmium betlerle* of the type adopted by the Navy Bureau of Aeronautic* for military aircraft use. The power unit is suitable for awitehgear operation, supervisory control and emergency lighting, particularly In unattended sobatations. Since the batteries are sealed there' b no need to add water peri odically. The. sealed feature also eliminates need for forced-air ventilation. This unit, a newcomer In the U. S. industrial field, was developed by the SAFT organisation in France. The "standard" 12S-volt unit has a cabi net with apace for five batteries plus -a rectifier. Each VeUablec K0-J5 battery baa 20 eelta, nominally develop* 24 volts for 35 ampere-hour*. Battery net weight b 88 lb, dimensions are approaimately 13.4 > 98 a 7.9 in. These special advantages are claimed: high eberge/dbeharge efficiency; no gass ing; low Internal reabunce; tittle variation of effective capacity as a function of dincharge rate; reduced weight and'size. The plates have a steel cere, sintered with e bard, porous nickel alloy. The active positive and negative materials are electro plated into pores of the nickel alloy, where they come in contact with the electrolyte Manufacturer state* that unit b suited either for furnishing considerable power for BATTERY b hermoticolly-soaled alkaline unit, sold to need no maintenance several seconds or minutes or for supplying power for one or moro hour*.. It b also elalmad that battery may be discharged et any rale without Hi effects. A completely discharged battery can be recharged in 10 hours. Overcharges ere said not to be harmful, unless temperature become* too high. Batteries can be used Immediately, or put into stock for au un limited period without special precautions, regardless of the state of charge or dis charge, manufacturer da lata. CCooogccoDesll,i IInncc,, 22SS00 PPoorrkk AAvvee,, NNeeww YYoorrkk 1177,, NH.. YY.. CABINET hoi sin compartments; top otf.. holds rectifier, others the bottcrefil Film-Forming Amine 801 Hofo/Um is said to reduce corrosion from oxygen end sold carbon dioxide in steam condensate eyetema. The amine U fed to the boiler in quantifies of 2 or 3 lb per million lb of steam. It vaporises with the steam and deposits a thin, non-weliahle protective film on all metal surfaces where condensation occurs, and throughout tho return system. May be obtained in both solid and liquid form. Bulletin available, llngnn Corp, t'illsbnrgh SO, Fo. Package Water Conditioner 815 * Unit is available in eight standard sixes from 500 to 5300 Iph, sad flows of 12,000 to 79,200 gallons per day. Each complete conditioner, consists of a precipitator with built-in dearwell, pro portioning chemical feeder control, coagulant feeder tank, time or soda ash hypochlorite feeder tank, Intel float control valve, NtuUalilt filter unit, Carbo-Our purifier unit end service pump. The units msy be used to remove turbidity, color and organic mailer from water supplies, to chlorinate, to remove had testes, . odors, iron end manganese, to neutralise, soften and de-alkalhc. Applications include municipalities, factories, power plants, etc. Permutil Co, 530 W 42ml St, New York 56, N.Y. Jet-Cooled Duelling 825 New Jet-eooled terminal bushing for hydrogen-cooled steam turbine-genera tors Increases current capacity of conven tional bushing* nearly 4 to 1 while main taining a compact, mechanically sturdy conductor and bushing design, msnufac- lurtr claims. 'The terminal conductor is a hollow cop per stud, divided into inlel and outlet pas sages by a vertical partition. A let ol hy drogen 1* forced from the generator pres sure chamber at high velocity, and directed through a hole in top of tho bushing. It travda through the passages in direct con tact with conductor eopper end exhausts into the generator Ian auction region through radial openings in the bushing cap. Manufacturer's testa Indicate that with jet cooling a 4500-amp hushing can safely carry 17,500 tmpe with hydrogen pressure at 30 peig.-Al 05 pslg hydrogen, the hush ing. will carry over 10,000 amps. Allla-Cholmere Mfg Co, General Ma chinery Dir, Milwaukee 1, Wi*. DEADER SERVICE SECTION H Lubricant Pump 805 * Bronu-impeller posliive-aisplaceosdl pump handle* ails and grease* from Ulh'j bodied fluids to heavier diesel lubes rendered lata Maximum capacity is 10 |P*J The units are eel (-priming at low tetnptfVi lures, can operate at oil temperatures up 1*4 500 F. They may he operated eubmeflPrf will pump in either direction and In jj position. Eco Engineering Co, Id New York Newark, N. J. ^'Flywheel Motor-Generator IJ4^-.'Flywheel generator seta end aasojsejated' emergency transfer control Insure ggcontiauitv ef power supply for microwave' Meguiprhenl on utility, pipe line end airnlWaHong-distanea systems. H^DnrlhK norms! operation, ael runs on JpomSereisl power system. When there Is vbididiirbsnce or outage, energy stored in flywheel drives the generator (or seven jgj/^ttcotid*. This allows time for automatical- j&Jrtastling an emergency standby generaw^tyiel and switching the microwave _ .`^y55a'P*iit to the emergency power source. |2ttPu>licstion 200-FF-22. Machinery Mfg Co, Minno*"M1 13, Minn. w?... PF"------------------------- BtMUn. 1933 Conveyor Belt Guides 816 Conveyor Guidltr serves as an Idler as well as a guide. When Installed at a 30degree angle, it present* a revolving hyper bolic face to the belt edge. Impact force is thus distributed over a relatively long, flat surface, and injury to belt edges (s avoided. The Guidltr Is also said to move along Us axis and thus follow the vertical movements ef the belt edge, controlling it while rising. Knnpp Mills Inc, 23-17 Borden Ave, Long Island City 1, N.Y. OU Clrcalt-Rer.losor 812 New type FJt line of oil eircult reclosers has a one-way seal for moisture pro tection, permitting release of internal plea sure but preventing moieiure-ladaa air from entering the recloser. Units of the new line' .are available with s time-current character istic that allows fnverchangeabllUy with other makes. The tine includes single end three phase units, S to 140 ampa, current rating, 2400 to 14,400 *. 125 to 2500 amps interrupting capacity.' General Electric Co, Schenectady 5, N.Y. (Continued on page 158) READER SERVICE SECTION