Document 8dVYgKwNYwJjZJwaV0DvjpMB

............ spring . POWERFAX the turbine-generator unit and the turbines driving the stoker fans and pumps. During this period it is necessary to take a small amount of live steam from the boilers. A steam pressure - reducing valve, which operates automatically from the pressure in the exhaust head er, supplies the required amount oflive steam to the exhaustheader. During the summer months, however, the motor-operated fans and pumps are used as much as possible so that a minimum amount of exhaust steam is wasted to at mosphere. No live steam is used for low-pressure requirements in the summertime, and it is very un usual for any steam to be going out the exhaust head. Live steam, how ever, is always used for cooking. For emergency service the local power company has a connection to the sanatorium power lines, for which is charged a stand-by cost plus the cost of any power which is used. Since the installation of the turbine-generator unit, the sanatorium has not found it nec essary to use anypurchased power. The exhaust steam requirements and power requirements are so well balanced that the plant has been able to show a savings in cost of operation of $11,000 to $12,000 per year. The mainte nance cost of the unit has been nil since it3 installation. The power plant is operated with the same number of men as was used before the extensions were made, requiring no increase in operating costs. The installation of additional equipment with motor drives is anticipated; and, due to constant ly increasing demands for power and light, the sanatorium will in all probability replace the enginegenerator unit with a more eco nomical turbine-generator unit in the near future. ELECTRICAL EQUIPMENT FOR FOUR NEW SUBMARINES For many years, the U. S. Navy has considered the Ridgway Works of Elliott Company to be among the outstanding builders of pro pulsion drive electrical equipment for submarines. This was recently reaffirmed when the Elliott Com pany was awarded the various generators, motors and auxiliary generators to be used in Subma rines Numbers 172 to 175 inclusive. MEXICAN REPRESENTATIVE APPOINTED Mr. Miles V. Stewart, Apartado Postal No. 693, Mexico D. F., Mexico, has been appointed Sales Representative for Elliott Com pany and Associated Companies. Mr. Stewart is well qualified to do a good job of handling Elliott equipment in Mexico. He is ex perienced in the application of power plant equipment and is well acquainted in Mexico. LETTERS FLOOD Gentlemen: I have been receiving POWERFAX for a number of years and have appreciated the courtesy very much. 1 have consist' ently filed away each number after care fully reading it, and have always con sidered the splendid articles, data, tables, and curves covering the different ar ticles manufactured by the Elliott Com pany of the greatest value in my work as Chief Engineer. Last July, our city experienced a very bad flood and the copies of POWERFAX I had filed away were ruined in the high water. Last week I tried to find curves published in one of the issues covering the steam rates of different type engines. ... I felt impelled to ask you if you could possibly supply me with back numbers from the time that I first received your valued publication. 1 would be glad to remit the cost of same. Hugh R. Ellis, Colorado Milling 6s Elevator Co., Denver, Colorado. To reader BUie was sent a file of POWERFAX for the past five years-- of course, no charge.--Ed. POWER AND PROCESS Gentlemen: Could you supplya copyofPOWERFAX, summer of 1933 issue? This issue carries an interesting description of the opera tion of the power plant of the Jacob E. Decker & Sons of Mason City, Iowa. If you have any other issue carrying de scriptions of the operation of smaller plants by turbines where the steam is used for process purposes, such as would be adaptable to canning plants, we would be pleased to have you forward those issues as well. Oliver Stevenson, Vice President, Otoe Food Products Company, Nebraska City, Nebraska. Afr. Stevenson was sent not only the Summer 1933 POWERFAX, but va rious other issues containing articles on the use of power and process steam.--Ed. PASS IT ON "After reading POWERFAX .we pass it on to our engineers who eagerly await its coming. We all tike it very much.** TURBINE ARTICLE Gentlemen: I recall one or two articles in some recent issues of your valued magazine POWERFAX dealing with calculations for the performance of bleeder turbines. I feel positive that I filed same and yet am unable to locate them in spite of a dili gent search. I would appreciate indeed, if you would be land enough to let me have a duplicate copy of those issues of POWERFAX. B. F. Koch, Anaconda Wire & Cable Co., Hastings-On-Hodson, New York The art/cle referred to was published in the December, 1927 issue of POW ERFAX entitled---%*The Economy of the Bleeder Turbine".--Ed. t*;*v**. CRIMDEBN00000215