Show the success of the karns tunneling M machine achane BY A B GREESON extravagant language seldom convinces those who are after the facts and the plain statement that the karns kams tunnelling tun nelling machine is an unqualified and proven success will be strong enough to convey the actual condition to the minds of our readers after re r e heated tests with the present six foot machine now in operation on the property of the india gold mining c company 0 m near boulder colorado sixty four feet of complete tunnel has been driven in very hard granite and spar without a ainsle portion of the machine breaking an any y ot of its parts to the surprise of everyone the canadian Va nadian steel bits show but little signs of wear being still in perfect condition and they will cut from thirty to forty feet additional tunnel before they will need to be taken out and sharpened while the illustration accompanying this article will give the reader a fairly good idea of this truly wonderful machine it does not show certain facts that will interest all who have not seen the actual machine we therefore give below a short description of the most interesting portions of the same the karns machine is composed of a steel head cast in one piece in which A x Z DIV the karns tunneling machine are bolted a series of canadian Va nadian steel bits cut about one and a quarter inches deep on bars from six inches to eighteen inches in length these bars are bolted to the head at each end and so set that with the turn in ing of the head three inches after each stroke an entirely new face is presented to receive the stroke of the head back of the head leading to the twelve inch air engine which drives the machine is the eleven inch driving piston and what a monster af fair it is the twelve inch compound air engine used in dr driving ivin t this h I 1 s monster drill for such it really is has the capacity of delivering to blows per minute with a 10 inch st sto oke the air that will be re r e quiren to run t this h i s machine to its full capacity is variously estimated at from 2000 to 2500 cubic feet and judging budgin from the actual abou amou amount nt of air it takes to run the six foot machine now in use the latter exceed the actual amount that will be needed to do the work perfectly the shell or frame used to support the machine has under it staunch trucks which run upon a very in ingeniously genious ly devised sec dional track making a suitable and sure footing for the advancing drill as it pushes along into the mountain the cost of maintenance ought not to be large as the parts of the machine are few and made staunch and strong the writer personally inspected the eight foot machine which is now being assembled at the india gold mine at boulder as well as seeing the six foot machine at work and a more perfect mechanism it would be hard to imagine in tact fact it appears that every element and requirement of each part has been fully met this eight foot machine is the property of the utah karns tunneling machine company which owns the exclusive right to use these machines in the state of N M J P karns inventor of the karns funneling runn eling machine utah As soon as this eight foot machine has been thoroughly tested it will be shipped to utah and put to work on one of the many projects awaiting it the cost of operation being so much below that of the old methods of such work maltes makes the possibilities of profit for the operating company so great as to be positively bewildering to the average mind it only takes six men to operate the machine at its full capacity and this includes f firemen ire engineer and muckers duckers muc kers with a tunnel a long distance in it will likely require an extra car man m an or two because of the longer haul the mucking device consists of an endless chain and scrapers which will deliver the debris to the car when one stands behind this machine and sees the enormous amount of crushed stone that is being broken down he then begins to realize the vast amount of work the karns tunneling machine can accomplish and is actually accomplishing up to date the tests on the perfected machine have been made with the six foot machine but now that the eight foot machine Is on the ground and ready to be assembled we shall soon see what the results will be in comparison and it is safe to say that the larger machine will vill not suffer from the trial in fact it is the general opinion that much more satisfactory results will be obtained with the larger machine that it is possible to construct a device strong enough in all of its parts to stand the at strain incident to such work borders upon the able that such a machine is in actual operation is beyond question and positively a working and not a theoretical success the large steel head holding the many bits or drills does not brealy in actual work and the drills do not become soon dulled as had often been predicted what is more the face of the tunnel breaks away at the impact of each blow as if by maglic magic and all at a fraction of the cost of the old method of drill and powder the actual net cost of course cannot as yet be definitely de determined determine ed but it is safe to say the operating company will be enabled to make enormous profits at a much lower price than the actual cost of such work at present prevailing it will not however be necessary for the operating company to cut the present cost price from the fact that with such rapid work and such a perfect bore as this machine will make the price though it be as high as that of the old method will determine any company to contract in favor favo r of this machine under this new method millions of dollars worth of work will be undertaken and pushed to an early completion that before was thought impossible because of the enormous cost of time and money the possibilities of an invention of this magnitude are simply beyond the comprehension of any one mind the inventor himself having not as yet really sensed the great part it will play in industrial development think what this invention means to the quick development of the great subway systems of the great cities especially new york which at this time is undergoing such a wonderful change in this particular line think of the magnitude of a proposition that can successfully bore a hole of almost any size in solid rock and it seems that the harder the rock the better at a rate of forty feet every twenty four hours working sixteen hours during that period of time land and with only six men employed to handle the machine the same force working with machine drills and giant powder will barely average twenty per cent of the above number of feet in the same formation J P karns of boulder colorado is the inventor of the machine that bears his name name and from his unassuming attitude no one would for a moment pick him out of a group agrout of men as being the inventor of one of the most revolutionizing machines in the world today mr karns has been working on his invention for many years never doubting the ultimate outcome of his machine which will so soon change all former meth of doing tunnel work many years ago j mr karns superintended super intended the digging of the e revenue tunnel in san juan county colof rado in which he be established a worlds record for such work the utah karns tunneling machine company owns all the rights to use the karns tunneling machine in utah and as soon as the eight foot machine which is now being tried out at doulder boulder and which it owns reaches utah active commercial work will begin many mining companies are anxiously awaiting the arrival of the machine within thene the ne next at t which event will take place sixty days one of the great projects that will very likely soon be undertaken is k the construe tion of a large drain and freighting tunnel fron from salt lake valley to alta aita and park city the sale of water alone it is claimed will almost meet all interest charges the mines of alta and park city would be drained to more than twice their present depth and the power that could easily be developed at the mouth of the tunnel would readily supply a city the size of salt lake it will be seen that the possibilities of such a project are almost limitless and there are many almost equally as gigantic gantle gi propos propositions in this state alone awaiting such development the karns tunneling machine lias has been carefully inspected by a number of noted engineers throughout the country and they have given it their unqualified endorsement notable amon among 1 these men are H A sumner chief engineer of the moffatt att road blauvelt and thompson engineers of the same road edward superintendent of the vindicator mine cripple creek colorado I 1 henry bolthoff of the firm of hendrie and bolthoff denver W J murray manager of the victor fuel company denver ID S carman chief engineer of the american machine and manufacturing company and many others statement of J R belcher president of the utah karns tunneling machine company after nearly five years of continuous work against a skeptical public and supposedly scientific mechanics the promoters of the karns tunneling machine today have the pleasure of seeing their efforts crowned with complete success and have the satisfaction of knowing that they have brought to the mining industry of this great west an invention that is limitless in its scope for advancing the mineral production of the intermountain country and its field for usage will extend all over the civilized world where tunnel work of any I 1 tion is needed x 0 R w A 3 5 SK J R belcher president of the utah karns tunneling machine company this invention like all others which were revolutionary in their character has had but few supporters especially in its first fir t OR MM YA engine that drives the karns year or two of promotion and for that reason its development has been necessarily slow there have been spent to date on the invention something like and the te large sums of money that were necessary at times were not always at hand to the people who have so generously supported sull ported the utah company in a financial way I 1 wish to extend the thanks of the entire directorate and announce to them that the company is in first class financial condition and will move rapidly from now on as we are teady ready for actual tunnel work and before the close of the year will have several of the machines in operation in utah to the mining fraternity of utah we wish to announce that this company will meet them just a little better than half way on any legitimate proposition our object is to help develop the wonderful mining resources of this great state and this company can always be depended upon to assist any proposition that has that end in view the company will make a few very low contracts on royalty and mining companies that are first to install these machines will of course get the benefit several long distance drainage and transportation por tation tunnels will be run by the company in different mining districts of the state and where these tunnels are run rim deals will be made with the various mining companies affected for drainage and transportation por tation that will be satisfactory to all concerned in connection with the carrying out of a number of this companas comp anys enterprises a large amount of capital will be required and correspondence of investment companies underwriters brokers and investors interested in high class securities is solicited li |