Bisbee daily review., 1907-07-27
WILL GO THROUGH ROCK WITH
 EASE
Inventor of New Drilling Ma chine Willing to Back It in Contest Against All Corners for S10,000.

PHOENIX, July 26.-C. c. Harris of Ffndlay, Ohio, who has been oper- ating in the Big Horn mountains, and has over 50 claims that he is operins up was in the city on his way b El Paso and home He showed some very good specimens of copper bear ing ore, secured from the 35 foot level He expects to return in Sep tembeT and begin more active devel- opment work on his claims. He has been an oil operator and has now large lease of wells in Indian Terri tory. He says that he has put about $G0, ,000 into the game of mining through other people, but now in- tends to look after the squandering of it himself However, he hopes to get some returns for his investments MT. Harris was yesterday explain ing a new rotary tunnel drill, invent ed by J. P. Karns. a man who has been engaged in tunnel work for thir- ty years, and which invention if it proves practical as experiments. with the first machines indicate, will reyo- lutionize methods of tunneling MT. Harris is a stockholder iii the con- pany which is not advertising or try. | ing to sell shares, but is going along quietly and has at an expense of Sl21 ,000 obtained patents in every | country in the world. This drill was
 invented about seven years ago and
 MT Harris was the first packer, but a temporary financial embarrassment caused him to abandon it for a time. | Later, another company was organ ized and has built a drill at the Amer ican Tool Machine Works in Cleve-
 land and has made tests at Magnolia,
 Colo.
 | The engineers who listened to MT.
 Harris statements yesterday, smiled
 at his claims, but he said he expected
 that He Is willing however, to back
 his statements with the coin. This
 drill, says MT. Harris, has been built with a diameter of eight feet and it weights four tons. It has a ratchet
 movement, chipping out the rock, the 1 cuttings being sluiced out with water which also keeps the drill cool. On | the face of this drill are 5TO mOlars
 or cutting edges of the finest and toughest steel. It takes $50 cubic | feet of air at a pressure of 100 pounds
 per inch to drill a hole feet, and l inches in diameter with q drill of that ! ] it requires more power.
 The test machine at Magnolia has ! drilled a seventy foot tunnel in length i in hard granite. In the presence of | leading engineers in Colorado thiss | drill cut II inches in 10 3-4 minutes
 a rate of 1-2 feet per hour. MT. liar
 ris said yesterday that he was ready
 to wager S1O,OOO, place the cash in bank, against another $10,00, that an eight foot Gin diameter) rotary drill 1 would cut 100 feet in 24 hours in the i hardest kind of rock. He is ready to l back up this with the mOneS and give | $1OO as a commission for the work. | These are startling figures and if the | drill will do what he thinks it will, it means a great revolution in building ] tunnels subways and irrigation can als through rock.
 ! Walker Bros, bankeS5 of Salt Lake ! City. are buying a machine for work | in that state, the nature of which MT.
 Harris had not learned. Proctor and l Gamble, who are the manufacturers of Ivory soap, are buying an eight 1 foot drill for some irrigation tunnel i ing in San BernaTdinO county, Cali i fornia
 The cost of operation of the drills
 of this size is yet a question, perhaps, but MT. Harris thinks it will be less than the cost of the powder to blast
 out the same sized hole by he old
 method. Then the rapidity of the
 cutting is an item that must be taken
 into account as it will drill if success
 ful, as MT Harris believes. as much
 in a day of 24 hours as two men by
 the old methods could blast out in
 six months.
 The machine for the Salt Lake peO
 pie will be in operation about the mid
 dle of next month, when it will be
 given a thorough test.