Document OzNEGZvQyxBoqm2xZj4EvDmrK

Equipment Continued busbars by positive-pressure cntci jaws. High-speed collier* magnetic and thermal Hip l the MO* breaker gives adequate time teg tor starting motor* and tungsten lamps Inrush current ll trips as fast si one-hundredth of a second at current values slightly above operating range. Breaker units regularly provide four single poles that can be readily converted into two double poles by insertion of handle ties. NMO panelboards are furnished 100- and 200-amp maln-eircuit ratings, 120/240-r ae with 1S-, 20- and 30-amp circuits. Square D Co, 6060 Rivard St, Detroit 11, Mich, Phaie-Rotatlon Indicator Compact and lichthsicut, this selfcontained instrument, known as the Selco phase-rotation indicator, Is for electrical power companies, Industrial-plant electri cians, electrical contractors, manufacturers of electrical equipment, and others who need a quick, positive phase-rotation Indi cator. It can be used for "phasing out" new equipment, such as transformer bonks and alternator* for parallel operation. It can also be used (or reestablishing dis rupted service and on Installation of motors and condensers. It indicates phase se quence by numerical, alphabetical, color coding and CW-CCW methods. It is designed to operate between 50 and 600 , 25 to 120 cycle* on 2-, 5- or 4-phase cir cuits. H IT Sell Electric Co, 1907 Willow Ave North, Minneapolis 11, Minn. Test Tube TbuTest combination phosphsie ^ ,, and testing tube has been develop^ ft use in water analyses. Tube esrriet uated markings for lest sample and ch#^. eal to be added. Tube fits any TtttxZ1 comparator block or Taylor slide. TruT*.***1 Laboratories, live, 20 S. 33td St, PhtU.JJfc riclpltla 4, Po. iOTti Metalizlng Gun MOCULCCTAIC MKTAL-SPflAY CUN It pswettd with a 1/20-hp. constant-speed inductl9] motor, thereby assuring a uniform win^ speed. By using different combinstloai d gearing, most any spraying speed eco bs obtained with any of the metals used la the metallising industry. Electric motor reduces1 sir requirements. Metallising Co ef America, 1330 W Congress St, Chi. engo 7, III. Position Rocorder U2 Capable op fitcoaomc almost any mechan ical motion or position, this instrument uses a 10-in. circular chan and inking pen operated from a remote point by a self-synchronous motor. By a single ad justment, inking pen moves the full chan range with any desired motion of selfsynchronous motor within a range of j revolution up to 10 revolutions. 'This feature permits a high accuracy nod makes possible remote recording of such variables as pressure, temperature, flow and many mechanical movements. Servo-Tek Prod ucts Co* 247 Crooks Ave, Clifton, N. J. Utility Fen E4J Chelsea Tvn AA utility fan ia suitable for cold-atorage, milk-cooling, raeat-ewrage and quick-freeiing rooms, and for eliminat ing dampness by air circulation. Totally enclosed motor is equipped with ball bear ings so that unit can be operated in any position. Available in 3000- and 4800-cfm capacity. Chelsea Fan A Blower Co, 1206 Crave St, Irvington 11, N. J- Porlablt-Gata Operator E47 PowEA-emven tractor-type portable gate operator 1* on pneumatic-tired wheels. Cats operator is available in three models: electric.motor driven, 5- end 10-hp gasolineengine driven. Cesoline-engtne driven unit ia moet generally used because it has fla own power plant. Usually electric unit b used around filtration, pumping sod *e* age-treatment plants where elecirical-po*** outlets ere readily available. Principal application Is in general maintenance *1 & 10- to 36-in. gates operating la balanced A| flow. Operation (a smooth and sfmphl q* {Continued on page 154) |BRONZE * IRON * STEELUsa convenient reply cards on page 170a to secure additional Information on these new oquipmont itemt. Ptoot* # ,>bo sara.to identify your request with tfco now-aqulpment key tetter, f, and numbqr, at thown on the items abort- . (V'*T tStOUtttlAV. INOlNlttlNO, MARINI, PIUMAINO-NIAIINO UtVlCI 122 f116) POWER February I*41 f**0V*1 IMDU,T*'*4 otirataotoas maywHim