| Show I 1 WRENS ORE OKE ei concentrator hiir drajin being moally of B who are interested in everything that improver in the mode 0 of worling silver oren orca their attention lention nt is ii directed I 1 to the fullow blowing iii front from the file reese concerning tle concentrator upon which altos wren larco ila ajai turned laif is thoughts ats fur for the few ym years nail which now noir well tor for the inventor and the mining world ingen in general cral the this new and so BO far invention has boa after provoking delas deli anil and obstacles been set iet at work in g good hl earnest the mehi co nery consists con of a twile borso borao power little giant engine a wheeler s crusher ol 01 the largest size bize a revolving revolting screen eol at a slight alight angle gle open at both ends ilia upper and greater part 0 of t the so orean een covered with a no do 60 wire bercon acree oi or sieve lie lower leaser part with i a course coarse blev sieve e and the necessary appurtenances sp running running gear etc ft fak the whole the process is ii bimble though eal en lively scientific kile the rock after be bc ing thoroughly dried in the kilo is is fed into the crusher whence by means of a pout ekaut it is conducted and fed into the upper end of 0 the revoir in ing screen the pulp pisses passes through the line fine screen while tho the waste passes through tho the coarse screen tb mhd pieces tt of rock too large to in piss through either sieve of file screen are arc discharged disc C 1 abc 4 at the lower open end the rock discharged through the end of the screen is carried by an elevator evator back to foaad and passed through the crusher and by these means low trade ado ores which haye have heretofore been on account of the cost coat of cl cabi bo be worked at a profit the expenses of ing the works are one engineer one man to feed file crusher one man to tend the ile drying 11 g kilo kiln and one cord of wood per day the cafa capacity cily of the apparatus will F probably iro bably be considered over 20 20 tons ten for r a working day often hours houra tho the principle of 0 worling working this his exceedingly cee cheap gull and simple apparatus is ia this mineral lin cral bearing rock is ia friable at those parts conta containing irling the mineral therefore it is the morn more easily fractured at that bat point the crusher has boa both a crushing andi and a grinding motive the rock being broken into small tatnall pieces exposes its mineral surfaces which grinding against each other is dit integrated fromn the lie gangue a and d be beane i adz in eno particles is passed abrou through h the screen in the form of pulp it is ia then further concentrated by means of water the fine cue particles of granite quartz quart aud and sands being washed off wo we have not room at present for a more detailed statement but any will mill maa or mechanic will be able to see at a glance the principle of dio intention V ent IOU it is i now L on ilia old waste dump or of tho the savage mine theau the dump is ia largely mixed with granite am nd 9 clay and will average about 25 pet per tori ton as a it lies 1 1 from rom tins this corn com ively worthless grado grade of 0 ore to three tons one are reduced to about one mis ton of pulp allying fully go th the a residua aa saying about sa 5 per ten lea 1 the GO CO pulp Is then further reduced by water to an ad amount assaying saying ac at the rate of also poche P ock reword tc cori |
