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Show INTE LUMOGNTAIN MINING REVIEW the Swansea, the the South Swansea, the Four Aces, the Yankee Girl, the Sioux, the Utah Consolidated, the Godiva, the Caresa, the Boss Tweed, the North Star, the Buckeye, the Governor, the Treasure Hill and Diamond mines. One interesting problem seems to have been solved by the Swansea, which, it is said, has gone down iron pyrites and through the low-grafound a permanent body of ore of greater and better proportions than heretofore. The theory had been expressed by Prof. Clayton years ago that, while throughout the porphyry belt the fissures seemed to be pockety a porphyry quartzite contact on the and the ore bodies either played out or turned into pyrites, yet that these were westerly, side of the south half. The veins in the porphyry are fis- true fissure veins and would continue and spurs run- down to the lime contact below or to sures, with cross-feedening in all directions, making a net- the granite, where permanent ore work of surface indications quite at- bodies would be found to exist. If this tractive to the early prospectors and be true, as it now seems, the mining miners. In the lime the ore deposits in the porphyry belt has just begun. are found in the nature of bedded de- If it shall prove true, also, that the lime posits and ore chutes, better ex- contact lies below the porphyry in a plained, perhaps, by stating that these large portion of the district, and andeposits or chambers are apparently other Leadville contact exists, we may made in channels. or along the direc- look to see Tintic spread its fame tion of the gray and blue lime con- abroad during the next few years. Without taking up space now with tacts. Some of these ore chutes are very extensive, and in some cases ex- details, I will only call attention to tend to the surface, while others are one more important feature of Tintic, constantly being found at greater viz., there are evidently two or more depths. In the Eureka Hill the working zones in the district, carrying lead, shaft has been sunk below the 1100, in copper, silver and gold ores, but disto the 1100, and tinctly is gold found in regular and inthe Centennial-Eurek- a to the 900 or 1000 creasing values in the Utah, the Sioux, in the Bullion-Bec- k level, with the ore bodies showing great the North Star, the Mammoth and the permanency and the average of values mines of the eastern zone, lying beholding very strong, but, of course, tween the Ajax on the west, and the belt on the east, varying somewhat in values. In the Mammoth the ore chutes have been de- which section is about to be developed veloped to the 1400 level, and a remark- by a great tunnel system. In the Mamable and encouraging feature has been moth Hollow are two large combinademonstrated here, viz., that the ave- tion mills successfully operating, ownrage gold values of the ores have in- ing a large water system, electric light creased, in fact to such a degree that plants, etc., while with the completion probably the last three months returns of the great Robinson tunnel system would show as many ounces of gold per several new mills may be erected. One other new feature deserves menton as ounces of silver per ton. Right here let us call attention to the tion in the progress of Tintic, for it is dividend-payer- s of Tintic, and we find now understood that within two years that through the most unusual depres- the electric power from Provo canyon will supply every mine with light and sion in mining ever known, the Centennial-Eureka has paid double monthly power throughout the entire district, so dividends of $1 per share, the Eureka that any one can set up his plant and combination attach a wire to the machinery and beHill has built a mill and kept up a steady stream of gin operations on the highest point has put without cost for power, except the rent bullion, while the Bullion-Bec- k in a new water system, built a large of the electric wire. In a short time than concentrating mill and still paid a sur- mining will be considered safer enterplus of $25,000 to $50,000 per month much manufacturing or mercantile of the time the past year. The record prises. While properly conducted it is also shows that the Eureka Hill has more remunerative and fully as remore than paid back its entire capital spectable. The progress making in reducing the cost of production and in stock; so has the Centennial-Eurek- a, has paid in divi- the treatment of ores is quite marked, while the Bullion-Bec- k dends more than double its capital and when the full power of electric invention has been applied to mining we stock. Depth has had a tendency to improve shall see not only prosperity, but there the mines of Tintic, and one strong will be much less prejudice existing. I think that Tintic is destined to factor in the confidence investors have in these mines lies in the fact that no make a wonderful record, and the mimine which has gone to the deep has ning world is watching its progress ever failed or become exhausted in the carefully. In many respects it is now twenty odd years the camp has been Utahs greatest mining camp. worked. The record will show between It is stated that the Anacpnda comthirty and forty millions extracted in the metals, and many properties are pany is now producing almost as much producing with better showing than copper as the whole State of Michigan, heretofore. Particularly is this true in more than Spain and more than Chile. worked around Silver City, and to th southeast of the Sunbeam the mines at Diamond and Treasure Hill became active producers. Also the mines of Dragon Hollow, to the east of Silver, were located and worked, including the great Tintic iron mine. The south half of the district is in porphyry, the contact with the lime formation being found on the south side of Mammoth Hollow. The north half, including the Mammoth and the Eureka gulches, is in lime, the porphyry swinging around' the east and northeast sides of the camp, while the quartzite lies on the west side, making a lime quartzite contact in the north half and Ajax-Copperopol- de rs Sioux-Utah-Anacon- 100-sta- mp is, da 5 Mining and Metallurgical Patents. List of patents relating to mining, issued June 2, 1896. Reported for the Mining Review by J. F. Corker, patent solicitor, office No. 311 jand 312 Atlas block. Salt Lake City, Utah. Copies furnished for 25 cents each. No. 561,250. and M. Wolfe Mining-Dril- l. Clair, Penn. and rock drill, having a collar and bit holder at each end of the drill bar, and a feed screw provided with a ratchet pawl, and level at each end. M. Devlin, St. A reversible coal No. 561,369. Mine G. Trap-Doo- r. Bo-nenber- ger, Evansville, Ind. The combination with a mine trapdoor, of a moving bar carried on cranks alongside of and close to the rail connections, whereby the depression of the bar opens the doors; a trip at that end of the bar toward which the cranks incline, which depresses the moving bar before it is struck by a car approachfor ing in that direction, and means deraising such bar after it has been pressed. The combination with a mine trapdoor, of a moving bar carried on cranks alongside of and close to the rail; connections whereby the depression of the bar opens the door, a trip pivoted near one end of the moving bar and in the path of passing cars, a strip pivoted to said moving bar and to the trip by a slotted connection, whereby the trip will be inoperative when moved in one direction, but will move and depress the moving bar when moved in the other direction. Apparatus for Operating Mining Drills and Reamers. R. H. Elliott, Birmingham, Ala. In an apparatus for operating mining drills and reamers, the combination with a stand and an electric motor mounted on said stand, of an extended screw secured to said armature-shaft- , 561,501. a holder for the adjustably drill-spind- le mounted on said stand, and a worm wheel rotating said drill spindle and driven by said screw, and movable along the axis of said screw. In an apparatus for operating mining drills and reamers, the combination of a stand provided with vertical posts, with cross bars between the same, and a holding point projecting from one of said cross bars and adapted to clamp said stand in the desired position, an electric motor having its armature haft journaled between the said arms, And a screw forming the continuation a holder for the of said armature-shaf- t, drill spindle and means for clamping le the said holder to the said arms; a revolubly mounted in said holder and a worm wheel meshing in said crew and adapted to rotate said drill-spind- drill-spindl- e. No. 561,338. Crushing-Mil- l. C. M. Carhart, Plainfield, N. J. The combination of a driving shaft, a hopper, and an agitator located at the outlet of the hopper, said agitator being held loosely at its upper part and havconing its lower part eccentrically nected with the said driving-shaf-t. In a crushing mill, the combination a series of a base having a body-rinof rollers carried on shafts pivotally mounted at their upper ends, said rollers being arranged to engage the die; a circular flange secured to the body-rin- g and extending over the upped edge of the die and a circular mercury-chambe- r, supported to said flange and surg, rounded said die. Mining Incorporations. Dipper Gold Mining and Milling company. Capital $1,000,000, divided into 100.000 shares. Following are the officers: W. P. Davis, president; W. H. R. P. Morris, Evans, secretary and treasurer. The company owrns three claims in the Big Cottonvice-preside- wood nt; district. Gold Stone Mining and Milling com- Capital, $300,000, divided into shares. Following are the officers: George Crismon, president; W. E. W. Scott CrisHubbard, treasurer. The common, secretary and pany owns property on Pratt Creek, Lemhi county, Ida. pany. 300.000 vice-preside- nt; |