Show wy HOW MACHINE THAT PICKS OUT DIAMONDS DIA CAME INTO USE when the laborers descend into tile the dearn diamond ond mines mine rt at kimberley they blast and pick cute the hard earth and place it in wooden tubs tuba that are hauled ou on stout wires wire s to the murfa surface ce where the earth Is spread over the ground to undergo for several vey al months the softening influences of heat and cold when it Is soft enough it Is shoveled into the washing machines where the dirt Is separated from the rough diamonds and other large mineral substances ston eeg the mixture of miner I 1 als remaining Is 19 known its as concentrates cen 11 it was formerly feces iary to go carefully over these concentrates to pick out the garnets andriany and many other foreign substances until nothing remained bilt abe the rough diamonds this was a ajoy I 1 abid laborious opera mon but it was vas rif an essen essential tat part of the mining ind industry bistry listry until unfit n it was superseded not so ao many alea years ago among the amply employees es in the sorting room was a R youth by the name of Ker kersten stort w m ito ho went quietly to work to find a w way ay to separate the diamonds from other sto stones nes more quickly and more eastly easily than could be done don by the I 1 slow blow process of ilan hand picking ike he was was not discouraged by hl his many migny failures to find that way one day by the merest chance the boy aboyade tile the dischi discovery ery lie he wits was seeking A rough diamond and ft a garnet gar neit happened to to be lying on a j small board on the bench where lie he was working he raised oneena one end of the board Thep the arnet slipped off but the diamond remained ile he found that there was it a coating of grense goense ow on ati the borah board that had reta retained fied the diamond but not tile the garnet gariet the boy procured procure it a wider board canted coated the side with grease and dumped a few handfuls of concentrates concen tr ates on I 1 it t 1 therl he be found that by holding the bt board id in a slightly inclined position and vibrating it all the concentrates except the dla macii mo v to the lower lowen end and fell off while the diamonds remained in place then tari the boy 0 r invented a machino machine by which his discovery ight be utilized considerable tudy 7 wag required to perfect lt it but at last the machine was completed and the diamond magnates wem invited to witness the new method of separating diamonds from the rest of the concentrates the invention was wag an entire J rocress roc cess A more simple and complete 0 m r mitae de device vilee for saving time labor and loss of diamonds could not be imagined the entire dorkas now done by machinery clad nery hand picking has been wholly superseded and both the inventor and the mine owners have profited handsomely by the laborsaving labor saving machine christian science world |