Document 1g4a4wX28Ldynmxke6DoQ5dMd

More EQUIPMENT NEWS. CHECK THESE T00I... Electric Motors............................... p I74 Industrial Compressor........................... plTg Noxtlo Sproy Tester............... p ,R. plastic pipe..................................... Hermetically Sealed Pump.............p jqq Gas Leak Detoetor..........................p I94 Polyphase oe Motor#................................ p190 Unit Connector.......................................... p203 Hand Model Lift Truck,...................... p!Q8 Welding Positioners . ....................... p 2)3 New oe Broke Combines Three Adjustments 1202 * Single-adjaMraent ac brake (Type ' AK), completely redesigned, eomblnea whal were formerly three separate adjustments: (1) spring compression--to control torque (2) magnet travel^-to control total shoe the wheel with equal pressures. Any misalignment of the wheel center to right oi left of vertical center line of brake causes linkage to pivot about point A, but will net change effect of force F, on the clearance from wheel (3) auxiliary screw adjustment--<o equalise' shoe clearances. Also, a risible Indicator tells maintenance crew when and how mueh to readjust brake (or wear. Naw brake is applicable to practically shoes. With magnet de-energlsed, adjustment of spindle raises or lowers moving part of magneL If spindle is turned counter-clock wise until moving part rests on retarding bar J, any additional turning raises point A 11 ac motor installation! that demand start* and frees shoes from wheel for mainte stop operation or quick deceleration. Al nance. though designed (or normal horlionlal With magnet energized so that trunnion mounting, it will operate satisfactorily re* pin K is stationary, turning the adjusting 'gartllaaa ol angle of mounting plane. spindle increases or decreases amount of Oparatloa is comparatively simple and shoe clearance. Vibrational turning U pre derives Its effectiveness from a unique link age system. Brake arma pivot on fixed pins D and B, while lever ABC is pivoted to solid arm CSC at point C and is connected to arm FDB at point B by a pin riding In vented by two epring clips. Maximum impact area resulu from use ol short-stroke clipper-type magnet. Ten sion spring S prevents tacklish caused by wear and reversal of thrust in various Joints a slot Because of the geometry of the ol the linkage. Additional information system, force F, presses the shoes against available from manufacturer. Wealinghouae Electric Corp, Box 2099, Pittsburgh 30, Pennsylvania Cable Splice Tape 1216 * Introduced to communications field several yean ago, CSI cable splice rubber tape Is now available to utility, power and Industrial fields. New tape U reported com pletely water proof, resistant to corrosion, Impervious to copper. Dielectric strength is 19,000 v. Extreme cohesive properties permit lengthwise application of tape by, pinching. Tensile strength is over 19 U> per in. width. Material Is supplied foil wrapped in Individual packages in standard % and 2 In. 13-ft rolls. Special alxes avail-', abla to- order. Descriptive bulletin and . actual samples available from manufacturer. CSI Sales Co, Solon Center Bldg, Solon, Ohio fer dm date Mhh llsms, vss past cards p 1*7. Idsnttfy rw tssMit with Itsw ssmber. Why your \ ungstroms so efficient --year after year Vibration Tester 1225 * New, portable vibration meter. Type 1-117, ean be aaed with a band-held velooity pickup as a probe for tracking down unusual or eicesalvc vibrations. This eliminate! the necessity for tearing down entire machine to locate particular aourec of trouble, manufacturer claims. Unit weight only 25 lb and cao be used wherever standard 115-v, 50/60/400 cycle power is available. Further details available from manufacturer. CEC Instruments, Inc, Pasadena 15, Californio Isolation Bases 1235 * New mountiog bases, designed and built to individual requirements, cut down disturbing and often destructive effects oi vibrations transmitted to floors and walls from large fans and compressor*. Mount ing units, held between steel member* run ning lull length ef machine, carry weight and match vibration characteristic* oi in stillaI km. Descriptive bulletin'covering de sign end perlermance details Is available on request to manufacturer. Barry Corp, 85 Pleasant St, Watertown, Massachusetts Terminals 1217 Service at 2000-v RMS without corona--up to 7000-v RMS without flash or tracking--and dimensional stability at teat* perature* from minus 148 F to plus 300 F are featorea of new terminal* employing insulation injection-molded from "Kel-K** polymer. Chemical Inertness, zero water ab sorption and non-itiek properties of the plastic remove any environmental restric tions on use by preventing accumulation of deposits, growtb of fungus. Freedom front plasticiser* precludes corrosion of conduc- (Continued on page 174) 144 READER SERVICE SECTION power OfCCMgEft tPJJ Afr Preheater Corporation Field Engineers afm to visit every Ljungstrom Air Preheater in this country at least once a year. Their main objective is to increase availability and assure you a maximum return on your investment. They are always available for consultation. This Is just another reason why the Ljungstrom Air Preheater is the most economical hearing surface on the modem boiler. THE AIR PREHEATER CORPORATION 60 Edit 42nd Street New York 17, N. Y.