Show J C ac X MINING AND metallurgical PATENTS X X Z S the following mining and metallurgical patents have been issued by the united states patent office prospecting drill no david mccabe of boston massachusetts an earth drill having cavino r at its lower end a semi cylindrical portion for retaining a sam pie ale of earth a separable boring blade comprising a shank curved to fit within said semi 6 al portion pori portion ion an and a boring portion below said shank tapering to a drill point at its lower end c and having ut at its upper end a vertically elongated slot and c a lifter bov at T ably foual mounted ted in said slot hav haat ing a b broad Y 0 ad shovel like lifting NO end and a reduced neck having substantially parallel sides fitti fitting q g within said elongated slot and serving to maintain said lifter in proper upright position while permitting aitto swing up and down in the slot and a retaining head at the outer endom end of said neck and behind said slot and means for detachably securing said boring borin blade to said portion ore concentrator no august ten winkle of denver colorado in an ore concentrator the combination with a suitable frame provided with sprocket wheels at both extremities and chains edgag IL ak ww A NO ing said wheels of an endless apron attached to said chains at suitable intervals and left sufficiently slack to form pockets transverse strips extending between the points where the apron apron is attached to the chains and defining the length of the pockets the mechanism bein being Y so arranged that the mineral is carried upward with the apron and the gangue downward by the flow of the water ore concentrator no H earle canyon colorado an ore concentrator comprising a chute or casing closed on all its sides the said chute or casing being V shape in cross section and dimi diminishing in depth from its upper to its louver lower end means for supporting the chute or casing in an inclined position partitions in said chute or casing forming the end walls of compartments there being a space between the lower end of said partitions and the bottom of the chute or casing and valve controlled saphona leading through the top of the chute or casing into each compartment appliance for lifting and turning drills for rock bock boring or other purposes no chas simmons of kunanalling Kunan alling west australia A drill liftin lifting and turning device comprising a stationary cylinder a piston vertically moveable moveably move able therein spring pressed ripping gripping devices carried by said piston within the cylinder and a lever lv connected to the cylinder and having it its s end bearing against the bottom of the piston and moving said piston upwardly in opposition to the spring process of reducing metallic ores no caleb G collins new york 1 the process of preparing ores for the extraction of metals which consists in com mingling a powdered ore with a powdered florrid and subjecting the mixture to a temperature pera ture below the point of fusion 2 in the presence of hydrogen gas 3 the alie process of preparing ores for the extrac tion of metal which consists in exposing a comminuted com mixture of ore and metallic florrid heated to a point below fusion to the action of a gaseous reducing reagent friction wheel grip for ore feeders Ye eders no charles dickens hooper of telluride colorado an improved ore feeder consisting of a wheel having a central web and a flange extending some distance each side thereof a rectangular yoke having sufficient width between its arms to permit it to enclose said flange and extend inwardly upon each side to a point beyond the inner periphery thereof a block having approximately the width of the flange of the wheel and introduced between the flange and the inner wall of the crossbar cross bar of the yoke stub bolts projecting projection inwardly one from each arm of the yoke and at a point interior to the inner periphery of the flange and independent blocks one on oa each side of the web and confined between one of the said bolts and the inner periphery of the flange and h having abing a curvature substantially corresponding thereto the inner por 7 ar KF WIG 2 ad 7 n ima ra IN NO 0 6 4 eions of said last named blocks being cut away to fit the bolts whereby they rock on the latter an arm extending from the crossbar cross bar of the yoke voke and provided with adjusting holes and means for operating the yoke by the tappet of a rising and falling stamp ore separator no james barron barren san francisco california Is an ore separator the combination with a pan having sub substantially S ta perpendicular walls at its lower portion thence flaring up 18 f 7 fit za 46 1 NO 6 and finally formed into an overflow trough an outlet from this trough and a tan genial inlet to said lower portion of the pan of amah amalgam am coated linings of various heights shaped to and interchangeably fit 6 I 1 6 Z bk the fl flaring arino portion of the pan but not to extend to its bottom furnace for roasting boasting and refining ores no harrison B denver colorado two or more ovens one above the other each hav having ing an opening in the bottom or bed thereof and a rotary flanged discharge wheel located in each of said openings in combination with a hollow vertical shaft in sections joined together by center pieces having horino a P sr 14 CD I 1 t ra 1 abc I 1 oer contal arms fast thereto said center pieces and arms each interiorly divided into two chambers by a horizontal partition therein and mechanism for rotating said shaft in combination with a pawl and ratchet mechanism connected to said discharge wheel and actuated by said arms |