Document 91ye54Ean3K66Z9Ba6JVQ0Z8e

All TYPIS OF INDUSTRIES SKINNER "UNIVERSAL UNAFLOW" STEAM ENGINES UN down the list of American induftries which are depending on Skinner Engines for unfailing, dependable power ... to generate electricity ... to drive compressort and pumps ... for refrigeration and air conditioning. They have low-pressure steam as a by product, for space hearing and for use in varied manufacturing proc esses. This list includes Agricultural Implement Manufacturers, Chem ical Plants, Cotton Oil Producers, Electrical Appliance Manufactur ers, Forging Plants, Foundries, Gas Companies, Glass Manufac turers, Machine Tool Builders, Oil Refineries, Potteries, Rubber Man ufacturers, Steel Companies, Tex tile Mills, and Woodworking and Furniture Plants. Among these and many other classes of money-saving users of Skinner "Universal Unaflow'* Steam Engines are some who had power problems similar to yours . . . and solved them with a Skin ner installotion. Writ* for literature aud data regarding what hat bttn atcom* plttbtd under your conditions. for 0c> 80 Yi-om, Poin<j One flmiy Wtll-- fli/ifj.'iiy Stacim frxjmi-i SKINNER ENGINE COMPANY, ERIE, PA. More TECHNICAL BRl ld, ran,,. With turej, matne.lc amp|;Sett I'1'"1 in da convarslon ,|.rj?S .ide complete i.nletino Hj?' insuletinn lor hi,h de niuistrumentation, protection jj? circuit. In addition, th, ^ mined with magnetic plidei aome problem, and ^ wlotion to other, el la,,* protection, or control. The ficT^ voltage is required (or opwirtffi magnetic amplifier is not i in a dc conversion station, iin '_ age is always evailsble. .' Some of the simple applj^ magnetic amplifiers which hr# made In dc conversion iteiloni, olong with somo other poitible With the great interest which'Jj* shown in the design and applkQ magnetic amplifiers. It appears) that there will be many more while and normal uses In the d field. AIEE Paper No. 53-Jtf.j Electronic Frequency Changer tween Ac Power Systems. By {Finograd, AUu-Chalmert Mf$ Early in 1943, a 6,667-kw'e] frequency changer, using mere rectifier, wes installed in the Csr? & Tin Mill of the United Slates F et Cary, Ind., to provide e1/* chronous tie between the 25-dy 60-cycle power systems for 'lbs trolled interchange of power ja direction. All the 25-cycle power ernled in the steel compenyVpiut the Chicago district. The 60cyc tern is supplied by the steel cenp. generating equipment and by the; ern Indiana Public Service Co;.; The interchange had to b? through a non-synehronous of the frequency variations oq^iJE cycle system. Tho electronic typ? quency changer was selected';^, engineers of the United States Su after investigating several slur methods, including the Scherb(^ tem, two ac, two do motor-gencraMjr. ond I wo rotary converters. Ft*, was given to the mercury-arc changer, in spile of its higher and the pioneering involved, for^ lowing reasons: 1. It consists of stationary and requires no special foundation 2. There are no slip rings, PF ton and brushes, and the mat , cost was expected to bo lower. 3. It is easy to start without.!" on the system and it require*;,"9 chroniaing. It doea not feed wArfee avpwi * f 133