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Show wflr M mm M 9 ; ( ) , Among All tht Grat Miirn Which Hav Helped to Mak Utih Whtt rljl? 1 1 m El O HC V'V Sh9 h Today, O of the Largsst, Produces of Copper, Lead and tht IT H ::v; hi' lgS m fe Effmlll&fff y vT Precious Metals of Any State in the Union, Thor h Oae Nama Which I I A 4 SIV VJlfii 4Wl flfeell V Is Always Pieced at the Head, That, of the Wenderful Silver King. j Far : 1 1 1 1 wide its fame has traveled, of its H owners have made vast fortunes, one or them is making an honorable name for himself In the mj tJnited States Senate, and still tho groat property if eeps on turning ou1 its vast treasure, with no sign mi) of exhaustion and apparently able i maintain its Kli preSenl ontpnl for an indefinite periods II; 1 Tin- Silver King is a great mine, greal in its , achievements, greal in its owners and great in its W tutu, re Kjhi i:crv one knows Tom Kearne and David Keith, lf! while Mrs. Susan Emery Holmes is the acknowl- m "edged lefcder of Saintly city Bociety. Also every one I knows nil about rln? Silver King, its immense ore 11) deposits, its magnificent ftlanl nixl its spectacular Bjji aerial tramway. ij- 'i 1 rc may be n few people outside of T'tah, how- ffu ever, wild are n t quite su familiar with all these a j things as ive are in tins State, and for their1 benefit I :. i' V, illustrations and some facts and D a (P- f orir li . If tones gives a view of the entire I' plant, and Bhows of the buildings except the tj )...; ; u v.i'i ! :-. i lie upper pari of which may be seen II nt the left. The other cuts represent various features of the i piaul ;iMl mine, and an appropriate description will H lie found under each. 11?. Without further comment, then, let us see why W it is that the Silver King has attained its present ; piond position as the leader of all the producers lii Ij this great metal-producing State. f; To begin w ith, the number of claims enrolled un der the Silver King standard is 150 a goodly number, num-ber, as any mining man would admit, if he had to do all the assessment work on them himself. These He south and southwest of Park City, the mine H proper being in the canyon farthest west of the three which contain the greatest mines of the district, and all of which converge at the Park. Through the property there are found two great veins, 'one of which has not been opened up to any extent, bul the other, a contact between lime and quartzite, is a vast chute, Varying from two feet to as much as L25 feet in thickness. The average alue of the ores taken from this ledge is given at 4 7 per cent lead, 00 ounces silver and 3 in gold, although thousands of tons of it run far above that. This ore goes direct to the smelters of the American Smelting and Refining company at Salt Lake City and Pueblo. The second-class ore Is first treated locally at the concentrating mill, which is so prominent prom-inent in the illustration, and a description of which will be given later. The gangne matter in the ore is crushed qnartz, with considerable lime and more or less manganese. The Silver King is essentially a deep mine, as no ore to speak of was found until a depth of 700 feet had been reached. Shafts are now down to the 1300 I Ew-wi.. , ' -V ' ' ' - ' Stiver King Mine and Plant. Mill at Right, Sampling Mill in Center, Hoist fit Extreme Left, level, and there are several miles of drifts, ore being taken from each of the various levels all the wn. down. In the mine proper soni' i'.."0 men are employed, em-ployed, and the daily output is aboul -'(i ions. The machinery for hoisting and handling this huge quantity of ore is, needless to say, of the costliest and most approved pattern. Indeed, if there is one thing more than another which distinguishes the Silver King plant from all its fellows, il is the superb su-perb manner in which it has been equipped. This applies not only to the machinery in the hoisting plant, compressor-room and mill, but in the character charac-ter and perfect adaptability of its numerous buildings, build-ings, as well as the great aerial tram which carries the ore down and the coal up in a series of buckets depending from huge steel cables suspended on stately towers bnilt of structural steel on solid stone foundations, and which is always the first thing to attract the attention of the visitor to Park City. This tram is an example of the latest and best practice iu that ppecies of transportation, and is well worth a visit to Utah's greatest mining camp to inspect. In was installed by the "Mine and Smelter Supply company, com-pany, using the Finlayson patents, and although it has a capacity of twenty-one tons per hour, it re quires the services of but one man in its operation, everj i hing ex ept admitting ore into the buckets at the upper end being entirely automatic. Neither dees it require any power to move the immense weights carried, other than that generated by the ore iiself in its descent over the hills from mine to railroad receiving station. In fact, it develops about twelve horse power in excess of requirements, anil tins is utilized in carrying back all of the coal used at the mine in the same bucki ts which bring the ore down. This operation is likewise automatic, except that gates have to be opened and closed by h ind it the point w here the coal is loaded. Under the boilers in the various steam generating generat-ing rooms at the mine the coal is fed to the furnaces automatically by means of the American underfeed stokers, thus doing away with all hand labor and Becuring a great economy of fuel, the combustion being practically perfect and free from smoke. So much has been written descriptive of this plant that it is not our purpose to go over this ground again, but rather to describe the more recent changes that have been brought about. The most extensive of these changes is the addi tion of the slime and dryer department. The form er is equipped with seven V shaped settling tankj" five feet wide b live feet high h forty f,-Pt 0ng forty-horse power Iugersoi! Sergeant compressor-' three large si eel mud and air receivers, and two for. ty-eight chamber Johnson filter presses. Each of these presses has a capn n of hfieen ions pPr TWea 1 four hours. Tin a.ii.t winch taken from the ore :il various po m- in pr0ceJ of concentration, is divided among the seven tanks The How through them is very slow, conseqaendj the water comes off almost clear. The ihu !; mud, or settlings, is tapped at the hoiiom, through molars gales, and eh vated to a siorage tank ahoo th presses. From here ii is inn through the steel re reivers into the presses until (he latter are full and the former nearh so. ninety pounds of . ompresse air is then used to force the remainder of the mod-inlo mod-inlo the presses and the water out through the raw vas. The water leaves t he p;. .,!, ,,' ,;, v (.f,lr The product of this den.irt iin-ni is shipped agl slime product, entirely independ' nt of ihe reguaj concentrate. After going through the process described, the 6limes still contain about per , pi Thtg makes it a hard prodm i nml h ;, n!nia:( creasing the shiping w ight I n n dure this moiVj ure the company has installed a dri-r of the rUDjK mer revolving path rn II is ider f'.rtv r-ightc inches in diameter by twenty five feet hrhg, nnrl caiM be made to revolve at different speeds to suit tb character of the ore it is handling. The dust is (J lected in two hopper bottomed chamber?, one on toi and one on the side of the cylinder. The slimes til lirst put through a chopping machine into which the dust is also fed to keep the knives cle,irandt( prevent the pieces of the slime cakes from stickin, together on the way to the dryer. From here the' are conveyed through the cylinder and elevated to the shipping bins. The regular concentrates alii go through this dryer, but are fed direct from tin bin by a plunger feeder. The slimes and cones! t rates are dried to about 3 to per cent moistoij The mill at present has a capacity of 100 tons of flfc in ten hours. The mill is now running two shafts and easily handles the output of second class ore from thsmi mine. Should this output be increased, the mllW', will put on the extra shift and run the twenty fotljR hours. "r But seven men are required to run the mllEL proper, a crusher man, an oiler, a jig man, a jig fltT man a table man and a table carman. Besides then rhee is a machinist and helper, a repair carpenter) fireman, one man on the presses and two on thj dryer. ' The ore received at the mill is concentrated ii the ratio of three to one; that is, two thirds of tb weight is eliminated in the shape of worthless tai i mgs. |