Show IJ t X JC J C MINING AND metallurgical PATENTS 7 4 the following mining and metallurgical patents have been issued by the united states patent office ore sep separator and amalgamator 0 no 48 godfrey H aline of jersey shore 13 pa 1 in an ore separator and amal amalgamator the coin of a sluice box an open bott bottomed orned 51 50 5 2 1 1 84 55 53 za 40 37 44 38 39 za 70 13 za 31 abely engage said driving wheels to rotate the mold centrifugal separator for ores no harald de Raa of new york NY N Y in a centrifugal separator the combination of a shell an inlet at one end and an outlet at the other end of such shell for solid matters and said shells hells being formed with an increasing outward flare toward the said outlet whereby the resultant resultant of the centrifugal 11 force parallel to said shells is progressively progressive r lv increased toward said outlet |