Salt Lake Tribune | 1919-12-28 | Page 32 | Utah Man Invents Mine Drill Device Supersedes Hand Work

Utah Man Invents Mine Drill! 2 d S ! I Device Supersedes Hand Work MACHINE v.hidi inventor says will rcvolutieatee metliods cf develop- ' racnt v.Ucie haud work is done, is easily set up by one man in minimum j of time. 1 j x'v-': '' ' ' v-vd YYY":'? ::;:.Y li! ' .V Y r.- 4 S :- Xy Y" ... : i n f-:f Jy ; Y Y ' v- I - ill - Yf : '-"Y( ; ''.'; ' -;x m i-ii . ;l 'i'. a tr kM:iLiiMi ... ,:dyr - i?;:d:;,:ddr';:':; . a Contrivance Decreases Operation Op-eration Costs and Increases In-creases Footage. J?.!. CALDERWOOD of Spanish Fork ia the inventor and patentee of a new mining drill, which is being manufactured at Salt Lake. The drill, hand operated, requires about one-fourth the energy used in single sin-gle slid double-jack mining ami accomplishes accom-plishes results more, than cil her, with a minimum ot" effort on the part of the operator, op-erator, the inventor claims. -Mr. Caiderwood's device, known a.s the J. M. C. mining drill, has been installed by several mining companies. These companies com-panies report satisfactory results from the use of the machine, declaring they arc 'able to grea tly reduce their d rilling cosls and to increase their drilling footage foot-age 100 per cent over the old-sty; methods meth-ods of hand-drilling, The cost of the machine ma-chine is actually saved to (lie operator in less than thirty days of use, according to y r. (di Id erwood. The drill weighs approximately -seventy-five pounds and can easily he handled by one man. It is designed, however, for use both by one and two men. The inventor in-ventor does hot iiuend the device to take the place of power drills, and its special field lays in replacing all kinds of present-day hand methods., it is oi special value to the operator who must o It tain the maximum amount of efficiency from every dollar expended on his property. The drill consists of a standard mine column, and can be used with or without with-out an outrigger arm. To the column, or arm, is attached a movable arm wh ich carries the drill holdiv and hammer. This movable arm is adjustable to any Position, Posi-tion, which permits tiie drilling 01 every manner of tumid, shaft or raise holes. The extreme lightness of the machine permits of changing from one set-up to another in a minimum of time.