Document XO1XXy9mRrYEb91gRj6YV3b2g

w Increases starting voltage until lull current has been drawn from rectifier. U Marche Mfg Co, 6S2S Olmiteid Avo, Cblcogo, 81,IIL M33 SNAP SWITCH--Manually operated motor-starting switch start* motors ol 1 bp or ltts, and haa orerload device that operates on soldered ratchet principle. It handhole opening, and adapters can be used fer fitting it to larger opening* If necessary. Resetting after operation is simple, end require* no replacement parts other than new gaskets, which can be nude in the field. Wcsllnghotuc Eleetrle Corp, PO Box 868, Pittsburgh, 80, P*. MAS SHOCKPROOF FUSE--Renewable, cartridge fuse designed for shockproof serv ice and quick renewal. Available in sizes from S- 600-amp, 250- or 600 v. Solar Eleetrle Corp, Warren Pa, M17 HIGH OUTPUT RELAY --Power relay designed for convenience of wiring together with email mounting area. Unit is multi-purpose relay end is available for either sc or dc coil operation. Allied Con trol Co, 2 East End Ave, New York, 21, N. Y. MU AC VOLTACE RECORDER-h. atrument can accommodate aa many as 16 different ae voltages on wide strip chart. Readability of scale resulta from depressed' zero range that 'ignores lower portion of voltage scale, ii which operator Is not interested. It spreads volts or kilovolts, which he mhst watch, across Instrument's entire width. Leeds A Northrop Co 4984 Stenton Ave, Philadelphia 44, P0| M27 MULTICONTACT RELAY--Unit 1, capable of handling as many as 12 circuits in variety of contact combinations, and has life expectancy of millions of operations. Working from five bade contact arrange MSS CAPACITOR MOTOR--Motor said to be lightest of its size, rating and capacity and is for heavy-duty, tingle-phase, t bp, HS-230-v operation. Called the "Work is impossible to bold switch closed under sustained overloads but can be reset easily with regular twiteh lever, after overload la cleared. Allen-8radley Co, Milwaukee, WU. M29 AMPUDYNC CONTROL-Packaged ampUdyne control is for steal mill and proc essing line control application! where speed, current or voltage regulation are required. Unit brings together ell adjust ing rheostats, capacitors, rocli6ert and instruments required for sraplldyne-regalating current. General Electric Co, Schonettody, N, Y. ments, contact combinations can be stacked to satisfy many intricate circuit-switching requirements. General Eleelrie Co, Sche nectady, N. Y. horse", motor operates on either SO or 60 cycles. Starting torque is 220% and motor can withstand 25% overload Indefinitely, maker says. Crosier Machine Tool Co, Hawthorne, Calif, Mil SURGE FUSE LINK-- Lightning surges and temporary heavy loads within permissible range of transformer thermal capacities can be carried safely by this primary distribution fuse, available in sixes of 1, 2, 5, 7, and 10 amps. Westinghoose Electric Corp, PO Box 868, Pitts burgh, 80, Pa. M18 RENEWABLE SWITCH --No. 101 switch has J-in. overtnvel tod ean be used to control two circuits, breaking one side of the line el each. Designed for 10 amp at 1I0*12S v ao and under some condi tions works satisfactorily st lower dc voltages and currents. Congress Fan A Electric Co, Daytoua Beech, Fla. M20 FLOAT SWITCH--The L200 float switch Is 2*pole double-break snapback unit with alher-to-silver contacts. Auto matic Control Co, 1005 University Ave, St. Paul, 4, Minn. M84 FLUORESCENT FIXTURE -- HP100 future has weatherixlng finish that makes It resistant to rust, corrosion and pit ting. In addition to protective quality, M12 AUTOMATIC OSCILLOGRAPHType RS-9 instrument automatically re cords as many as a hundred transients without attention, regardless el whether they are seconds or months, apart. Can be furnished without starting rally* and equipment for automatic operation, when it is required lor manual or ataged opera tion. Unit ia designed for on as a portablo Instrument or for permanent switchboard installations. Hathaway Instrument Co, IIS South Qorkaon St, Denver, 10, Colo. . M16 TRANSFORMER RELEASE--Cev. er-mounted release device vents Internal transformer pressures caused by electric ore or overload. Fita any unit with 9-In. 'mis DISTRIBUTION TRANSFORMER -- Unit has wound core of eotd-rolled sili con steel. Also has atud-typs sidewall high* voltage bushings with metal-enclosed bush ing gaskets and bushing Insulating caps. Transformer Is single-phase 60-cycle unit Pennsylvania Transformer Co, Bos 6208, Piltsbnrgh, 12, Pa. Mincoat finish gives reflection factor of net less lhao 85% and a lighting efficiency el 65%. Sylvanta Eleetrle Products Co* Salem, Mass. M30 CURRENT TRANSFORMER Through-type unit has new cushlooed mounting' for porcelain Insulator that U suspended bride transformer housing by two continuous circular wedge-shaped mb' 172 OWlft-* Mfd-W, .1948 feer gaskets. Space between secondary winding and enclosing ;ic**e filled with plastic compound, sealing out air and moisture. AIH*-Chala:ers Mfg Co, Milwaukee, Wi*. r M15 TEST INSTRUMENT --Model 1005 U complete test unit -for electronics and eloetrical technicians ia laboratories, shops or service departments. Combines func tions of over 60 separata instruments and has six individual Instrument!, each with complete set of ranges. Unit adaptable for (eating all electrical appliances, small motors, circuits, etc. Simpaon Eleetrle Co, 5208 W Klnale St, Chicago, IU. meter can be made to read kva hr. WestIngbouse Electric Corp, Box 868, Pittaburgh, 80, Pa. M36 SOLENOID CONTRACTORS -- Intended primarily for oc motor controllers, these new solenoid-type contactors are also suitable for eppUcation in resistor hcatlog controls, lighting controls, etc, for remote and automatic load-switching purposes. Device features a compact unit construc tion In addition to complete accessibility of parts, built-in solderless connectors, doublebreak Oliver contacts, and simplicity of M8 THERMOSTAT CONTROL -- Thermosiat provides safe, accurate, fast-acting and constant beat control under most severe operating conditions. Unit espe cially designed for high- and low-temperalure rangea. Fenwal, Ine, 81 Piessent St, Ashland, Mast. H32 IflCH CURRENT CONTACTORS-- For operation on 750 v, these contactors are 1500, 8000 and 6000-amp units for tinglepole, heavy-duty operation. They are magnetically operated, frame-mounted, rear-connected devices with up to eight heavy-duty double-brake auailitry'lnterloek contacts. AlUa-Chnitnere Mfg Cn, MIL waukee, Wla. M38 INDUSTRIAL SPOTLICHT--Poweriul enough to illuminate clearly weld ing, cutting or.bracing work when viewed through a No. 10 welder's gtasa, this spot light allows welder to see the work before striking arc. One of ihjse spotlights casta a amall-diameter circle of light from 2500 foot-candle brilliance when placed 3 ft from the work jo 1000 foot-candles when 6 ft away. Spotlight uses a 6-v, sealed-beam type of lamp, operating from a transformer built Into the light bousing. Complete assembly weighs about 5 lb. It. can be mounted at any angle on tome convenient 1-in. pipe, or on its own stand, by a clamp and positive-action, spring-loaded swivel joint. Spotlight may be plugged into any service outlet as power requirement lor the lamp and aeceaaoriea ia only 30 watts at 115 v, 60 cycle*. Weatlnghotsse Elec tric Corp, P O Bex 868, Piltabnrgh 80. M39 PORTABLE EXTENSION CORD-- Pert-O-ReeL designed to save time on any application requiring extension cords. This new unit prevent* kinks and knots in the cord by a cord guide that winds the cord ss it is rewound on reel. Standard anil handles any length `of cord up to 400 ft. M21 TERMINAL BLOCK --Featuring a lock-in arrangement this block was devel oped for electrical industries. Lack-in feature eliminates danger of spade lugs pulling out. Curila Development A Mfg Co, 1 N Crawford Ave, Chiengo, 24, III. design. Site 2 and site 3 units have maxi mum ratings of 25 and 50 bp, respectively, on 440650 v, 3-phese.-60 cycles. Standard operating coils with front-connected termi nals are available for 110-. 220-, 440- and 550-v operation on 2$, 50, or 60 eyelet. Word Leonard Electric Co, Mt. Vernon, New York. M22 PERMANENT MACNET-Designed lo,replace electromagnets for many applica tions, new standard line of Atnico perma nent magnet holding assemblies is impreg nated to prevent moisture penetration. General Electric Co, Pittsfield, Mass. M37 RESISTORS-Newly designed series oi resistors intended for continuous highcurrent applications, the Loopohm resistors are suitable (or use whore mechanical shock and vibration prevail. Available with a con M23 DISTRIBUTION TRANSFORMERS -- Lightweight construction represents 17 to 46% roving in weight on these units. Ranging in sizes from 14 to 100 kva, 2400 through )5,000-v classes, units represent latest design. Allls-Chalmera Mfg Co, Milwaukee, Wla. depending on cord diameter. It is available with or without extension cord. Monufaeturer will equip the reels- with special hand lamps, lugs, and any type cord and cable to meet code requirements, of standardized wiring system now In use. Industrial Electrical Works, 1S09 Chicago Si, Omaha 2, Nebr. M24 THERMOCOUPLE--New nickelmolybdenum thermocouple Is auitoble for use in reducing atmosphere st temperatures ss high as 2100 F. General Eleetrle Co, Seheneetady S, N. Y. M28 PHASE-SHIFTING TRANSFORMERS -- Adjustable transformart convert standard watthour meters to kva-hr units by displayed voltage method. Uro of unit booed on fact that by shifting phase angle of voltage, a proper amount, any watthour tinuous current rating from 20 to 110 amp. They can bo furnished with tapered current .capacity, fised or odjustable clamp taps, end (ramee and eheet or esponded metal enclosures. Word l-conard Eleetrle Co, Mt. Venton, N. Y. M40 WOUND-ROTOR' MOTOR -- A totally-enclosed (on-cooled, wound-rotor motor haa an Improved lube-type sir-to sir heat exchanger. Creator efficiency ol this heat exchanger permit* a reduction in rite, and because of its simple design, cleaning is reduced to a minimum. Motors suitable (or all Industrial fields can be built with eiainlcu-stee) ventilating tubes, fans, and end plate*. In addition, cast-iron ter minal boxes and collector ring enclosures may be specified for motor operation under ROWER . MM-June. 1.948 173