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Show INTER-MOUNTA- IN A GOLD SAVING MACHINE. struggle that is on among men of inventive faculties and mechanical attainments to evolve a positive amalgamator that will save the fine gold of river sands, is bound to result in a machine that will be as near perfection as can be hoped for. The field is an inviting one on account of the known extensive dein the sands of the Green, Grand, posits of fine gold Colorado and Snake rivers, that have heretofore yielded but a small percentage of their values, and the best machine will be the result. Many machines, Tlw embracing widely different mechanical principals, but constructed on the lines of positive amalgamation, Utah men have have been placed in operation. brought out three or four patterns each possessing its own peculiar merits, and the latest of these to attract attention is the machine called the Little Wonder, the invention of Angus McKellarof Salt Lake city. The machine is a concentrator as well as an amalgamator, and has proved its usefulness in a number of the most severe tests that such a machine can be put to. The machine consists of a hopper, provided with a plate set on an incline of 6 degrees and perforated The material is ted onto with i inch round holes. this plate from an ordinary sluice out of which the boulders can be forked. When the travel strikes this grizzly it is pretty thoroughly disintegrated by its all MINING REVIEW. is repeated. The discharge of waste in this case is eighteen inches higher than in the first cylinder, and it is claimed by Mr. McKellar that the action in the two cylinders will save all the gold, but to make the saving more absolute the discharge is into an oscillating apron provided with riffles of an original make. Each cylinder is provided with a nipple in the bottom an elbow and capped pipe which is turned down when it is desired to draw off the quick and the concentrates. The machine has been subjected to as severe tests as could be devised. When it was unknown to any save its inventor it made a run on Bingham placers, using the slimy water of the creek that had done concentrating services in many mills and came down loaded with slimes. Under these most unfavorable conditions the machine did its work perfectly and saved every color. It was then tried on the sands of Snake river, which is conceded to be the most crucial test that a gold saving machine can be put to. The gold of the river sands is flaky and so fine that it requires 1500 colors to make one cent. It has defied nearly every device heretofore introduced to successfully save it. McKellars machine was set up on Mr. ground about three miles below American Falls and was run on the lava sands, with complete Cun-ningto- ns 5 and spread over the streets of Kimberly as a pavement, and there the refuse with its precious contents remained until there came a time of general depresson, and relief had to be provided for the destitute. Certain sections were apportioned among the men, every inch of dirt was dug up, carefully washed and searched for hidden gems, with satisfactory results. Some of the ground has proved rich beyond belief, and has turned out pay at the rate of $100 to each square foot of surface, one street having yielded $10,-00- 0 from 100 square feet. The official returns of the municipality show that in the first year of the experiment gems exceeding half a million dollars have been recovered, and still the work of digging up the pavements is said to be in its infancy. By the inauguration of this system of relief for the poor many who were suffering the extremes of poverty may now be called wealthy, but the original intention is in danger of being defeated, as the ground has shown such wonderful richness that bids are actually being made, and competition is keen, for sections of the, streets. Capital has also been attracted to the deposits. ORE AND BULLION. The ore purchases recorded by Salt Lake houses showed an improvement over the previous week when a decrease in sales was recorded. The increase, however, can be regarded as an incident only, as there are no changed conditions that would stimulate production. The base bullion output of the smelters is less in money value but the tonnage is said to be somewhat heavier, the difference being due to lower grade ores. The Pennsylvania is still buying ores and running its furnaces. At the same time the local officers of the company aver that the intention of the management to close down completely has not been changed. ORE PURCHASES. McCornick & Co T. R. Jones & Co Commercial National Bank Bamberger & McMillan National Bank of the Republic $ 33,800 43,200 28,510 34,884 9,000 Total Total for previous week $149,394 113,779 Increase 35,619 FINE PRODUCT. National Bank of the Republic, cyanides THE Hanauer success. Experts panned the tailings after every Germania effort had been made to flush the ripples, but Pennsylvania did not succeed in recovering a color. They were Total claims made by the builder, but have Total for previous week skeptical of the Decrease since furnished unsolicited testimonials as to its inches in height, and the pipe Snake river in Idaho and Oregon, in all of which conveying the pulp extends downward in the cylin- localities fine gold that is difficult to recover at der to within seven inches of the bottom. On the present. bottom are five inches of quicksilver. The theory, STREETS PAVED WITH DIAMONDS. which appears also to be good practice, is that the The novel economic potato patch scheme for the bead of water carrying the pulp downward vertically relief of the poor, introduced by Mayor Pingree, of gives it sufficient force to displace the quick at its Detroit, has been discounted in novelty and in returns center. The two inches of space between the end of too by a scheme put in force by the mayor and aider-me- n the pipe and the level of the quick is intended to of Kimberly, South Africa, for the relief of their a$sist this action, and as the pulp is continually bore- destitute poor. This is nothing less than the putting rs a hole into the center of the quick new quick of men to work digging up diamonds in the streets of from the sides fall into the space, thus bring every Kimberly, which are literally paved with the precious Particle of the pulp into contact with the quick, and stones, although they were not placed there by nature. msuring positive amalgamation without compressing When the rush of the 70s to the diamond fields of be which Kimberly was the center, took place, there pulp as in a postive feed machine. As the cylinwas a scarcity of water with which to wash the coatder fills with pulp the concentrating action of the ing of clay and refuse from the diamonds, and the water force raises the material upward, light miners were compelled to be satisfied with what reand at a bed inches above the point twenty-tw- o turns they could get from dry sorting. the quick a three-inc- h with connects pipe The result was that around the outlets of the mines a second upright cylinder of smaller dimensions. huge mounds of clay were piled, the material having This cyliuder carries a lighter charge of quick been sorted by hand and only the largest gems reand the mechanical action of the first cylinder covered. In time these deposits were hauled away diameter by 8,000 BASE BULLION PRODUCT. LITTLE WONDER AMALGAMATOR. down the sluice, but to assist disintegration a set of six perforated buckets hung on an endless chain, travel upward over the grizzly, forcing the line stuff through the perforated plate and discharging the coarse material over the tail. From the hopper the concentrated material is conveyed through a vertical three worth. inch pipe into a vertical Mr. McKellar will introduce the machine on the cylinder standing dirictly beneath the hopper. This cylinder is sixteen inches in Green and Grand rivers in Utah, as well as on the passage $ thirty-fou- r bjO GO $16,451 34,800 28,756 $80,007 97,579 . 17,572 |