Show THE GILSON HYDRAULIC concentrator the above is tle the title given by sam gilson to his new concentrator an invention of his own which is evidently destined to make a name and enviable record for itself in the mining and milling world nearly every mining man in this western country is personally acquainted with mr gilson or has heard of him mr gilson is one of the veteran mining men of the state an inveterate prospector he has made many valuable valri able mineral discoveries in this intermountain region and as an inventive genius he stands high in mechanical circles in the mines and mills of this country are to be found many substantial proofs of his ability in this line and now he has made his appearance pe arance again with another machine this time a concentrator rather novel in its construction st and application but which from this concentrator is so arranged that the finer particles and slums are taken out through the first or finest screen and carried in a sluice way to a slot cut across the bottom of the sluice through which issues a column of water under sufficient pressure to hold the lighter particles in suspension and carry them across the slot while the heavier particles fall through the column into the drawn out at the bottom trap or tank and are of the same the pulp that does nc through 1 this screen is carried to the next and there sized in a different mesh or screen what passes through this screen is treated in the same way as the first the only difference being 6 in the variation of the hydraulic pressure the pressure is changed so as to correspond to the difference in size or weight of the lighter material this operation is continued until the whole has passed through the different sized screens and the charge is completely concentrated Z THE GILSON HYDRAULIC concentrator CONeEN what is claimed for it promises to be a friend indeed to the mine owner mr gilson describes the working principles of his concentrator as fo follows llowd the principles of the gilson hydraulic concentrator are based on these long established facts that particles of the same size of different materials have different specific gravities and weights particles of different materials and unlike in size may have the same weights now if these particles are perfectly sized so that they do not materially differ in size and are then subjected to hydraulic pressure equal to the specific gravity of the lighter material the lighter must be separated from the heavier and pass over while the heavier material will remain or drop to the bottom of the water column mr gilson makes the following claims for his concentrator first that one of these can do the work of fifty ordinary concentrating tables second that it can separate lead and zinc or any minerals of different specific gravity and save all the values in one operation third that the cost of this machine will not exceed the cost of any of the leading I 1 tables fourth that one horse power is all that is necessary to operate the machine fifth that it is the only practical machine for the successful handling of low grade dumps and tailing pits and that it will treat all classes of concentrating material sixth that in working gravel in the recovery of fine gold it is unsurpassed when compared with other known methods seventh if used below the plates ins stamp mill it will save amalgam 0 floarea flo arna amalgam laam rusty gold parities and all values escaping from the plates it is mr gillons Gil sons intention to have ing model in operation at an early date 1 also to m manufacture anu facture these machines fo for r the th trade in the very near future many millin ff men have examined the models from whid mr gilson will construct his working y ima chines and approve of its mechanism a and nd tb the principles applied in the recovery of the precious metals the cut of the machine which embellishes this article was made from a phonograph 01 0 the plant roughly constructed by mr gilson but the main points of its efficiency can readily be seen by those familiar with ore reduction by this process |