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Show iNTER-MOUNTA- IN MINING REVIEW. Cottonwood Power Plant. and director; Joseph W. Summerhays, chairman of the executive committee urteen miles from this city there of the board of directors; George M. ov in successful operation an elec- - Downey, treasurer, and W. H. Rowe, il power transmission plant, which, director. Mr. Jones, however, has coni ize and importance, ranks second tinued to be the most active spirit of ho United States to the Niagara the enterprise, and it is largely due to works. The completion of the his untiring energy and perseverance y Cottonwood project marks the that many formidable obstacles have 1 lusion of an enterprise of far. been overcome and the project carried ... iter importance to the commercial to completion. There have been exindustrial interests of this city pended upon the works nearly $500,000, ti :i lias been reiilized by the public. and the enlistment of so large an company is now lighting the amount of capital, during times of ... ts of the city and furnishing such financial stringency, has been no r for various plants, and is pre-j-,- ., small undertaking in itself. A large j share of the financiering has devolved ,.,i to transmit 2447 horse-powand every hour in the year, while upon Col. Donnellan, and that gentle- a, Big I n station in distributing, or this city. At this point there is a minimum flow of 3400 cubic feet per minute which, working under 3S0 feet head, produces 2447 horse-powat the lowest stage, while during nine months it will give nearly 4000 horsepower. The storage reservoir at the head of the Stairs has an available hours concapacity of twenty-fou- r tinuous flow of the stream, making all of the water available by using an excess during maximum loads and allowing the reservoir to accumulate during minimum loads, 58,800 horsepower hours per day of twenty-fou- r hours is looked for from this source, of which OS per cent can be delivered in step-dow- j er L c - 'j- , , er ! POWER HOUSE AND PIPE LINE Big Cottonwood Power Company. for nine months in the ply nearly 4000 horse-powe- r. year it can sup- The Big Cottonwood enterprise was projected by Mr. It. M. Jones nearly fhv years ago. A few miles up from th ' mouth of Big Cottonwood canyon ih' e is a cataract known as The Stcirs, and here Mr. Jones found ideal conditions for the development of i pov .r For nearly two years he kd upon the project alone and un- a" 1. and then consolidated his inter- with those of the Granite Paper company, thus acquiring addi- tlo water-right- s. A new company wn with Col. John W. Don- .ionized, n, n. cashier of the Commercial Na- j bank, as president; George M. cashier of Zion's Savings Jrv secretary; It. M. Jones, manager fourteen miles by pole line from W'f 1 i Salt Lake in contract form, making horse-powhours net daily. 40,000 This efficiency is derive! from' Pelton 80 per cent; General water-wheelElectric company generators, 94 per cent; G. E. transformers Praising), 97 per cent; line transmission, 95 per cent; G. E. transformers (reducing), 97 Icr cent. The efficiencies of the generating apparatus, and particularly of the Pelton wheels, is thought to reach beyond question the guarantees. In any event, they lave all been proven to be reliable and capable of performing the work for which they were intended. The map of the reservoir shows a pipe line extending from submerged in the botthe head-gatetom of the reservoir, to a penstock or the receiver wood housing with grizzlies, man is entitled to great credit for his successful efforts in this direction. In the following description of the ReBig Cottonwood plant, the Mining view quotes extensively from an article prepared by Mr. Jones for the Electrical Engineer. The lakes emptying into Big Cottonwood canyon lie at altitudes of from 11,000 to 13,000 feet above the sea, so that the difference of level is considerable, even when the water is made to give up its energy at a point thirteen miles southeast of this citj. As a matter of fact, the company has available 1037 feet of fall, in various than spots, but is at present using less in 400. The power station is situated about the canyon at "The Stairs, er s, s, |
