Show S X X MINING AND metallurgical PATENTS A X X i i 4 rotating device for rotary drills no jay B rhodes of harvey illinois assignor to frederick 0 austin of chicago illinois A device for griping and rotating drill rods or the like comprising a plurality of rolls havin having IT peripheries adapted to bite or enga engage 11 e the said rod or the like and movable to and from the latter a rollad roll aela ad aing member through which the said rod or the like ex t As and which is together with the said rolls with which it has suitable connection adjustable in a direction parallel with the axis of rotation and means whereby said ad of the roll adjusting member and rolls will cause the latter to move to or from the drill rod or the like A rotary head for griping and rotating drill rods comprising a vertically adjustable ring or centrally plate through 9 h which the drill rod extends a plurality of grip gripping p ing rolls which are carried by the said rotary head and which are adjustable for alternately gripping and releasing the drill Z 14 rod a plurality of screw threaded rods or standards which are mounted upon said head and which extend through openings in said ring or plate an adjusting nut on each rod and means for connecting the said adjusting nuts with the said ring or plate means for simultaneously rotating the said adjusting nuts for the purpose of adjusting the ring or plate along the screw threaded rods in a direction parallel with the axis of the drill rod and means for causing such adjustment of the ring or plate to effect a lateral adjustment of the rolls relatively to the drill rod and suitable means for rotating rot atin 0 the rotary head for the purpose of rotating the drill safety lowering apparatus no daniel M collins of sioux city iowa the combination with two spools on a common axis and an endless cable wound in opposite directions around a common axle the cable having a depending loop between 10 11 0 0 fill the points where it is wound around the axle of a block suspended in the loop of the cable an angle being formed in the loop where it passes through the block whereby to cause the block to remain in position in the loop until lowered by a downward pressure applied upon one strand or side of the cable at any point throughout the length of that strand or side hydraulic press for mining alining purposes no 1 alfred joseph tonge ard and james tonge tong e jr of westhoughton West houghton and elam eaves of derby Eil england gland in a hydraulic press of the character described a series of duplex rams each ram of the series comprising an inner member or ram movable m within a cylinder and an outer member or ram inclosing the outer end of the inner ram and movable thereon the combination with the bar c having a series of cylinders c of a ram a movable within each of said cylinders and a ram b fitted to each of the rams a and enclosing the outer end thereof S B the combination with the bar c and a plurality of rams carried thereby each of sa rams having an independent unobstructed outer convex faced flange 7 or head bead projecting over the spaces between said rams |