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Chairman: Mr. R. C. Heers, Project Manager, Kaiser Company, Inc. CHAIRMAN HEERS: Fellows, I can't say it gives me a lot of pleasure to call this meeting together because I would rather somebody else had the job. I haven't anything to say this morning and I think the sooner we get started with the fellows that have something to say, the better pleased everybody will be. The first speaker this morning is Mr. John Griffen of the McNally Pittsburgh Company. He has a talk on coal preparation and I am pleased to present Mr. Griffen.

Jan 1, 1947

By J. J. Craron

MR. J. J. CRARON: If Ross Weber rings that bell of his, I think I have a few secrets on him that I will tell. It is not such a long time ago when the sales and executive departments of the coal industry were constantly urging the operating department to increase their output, and this cry for increased production resulted in vast development work and increased capacity to the point where the operating departments are today in position to produce coal upon sudden demand far in excess of the ability of their sales departments to dispose of it. So today our ability to produce coal is away ahead of our ability to market it. There are many reasons, of course, for this condition. First, the present economic situation, which has prevented even a normal consumption of coal. Secondly, the over-development and production of every commodity and industry as the result of war time and post-war time prosperity. Thirdly, the inroads made by competitive fields, particularly oil and gas, because of the desire of the public for automatic heat.

Jan 1, 1934

PRESIDENT WETZEL: Gentlemen, the fortieth regular meeting of the Rocky Mountain Coal Mining Institute will now come to order. It is my pleasure to present Mr. William Fealey, who will introduce the first speaker. WILLIAM A. FEALEY (Bethlehem Steel Company, Salt Lake City, Utah): Mr. Wetzel and Gentlemen of-the Rocky Mountain Coal Mining Institute: The Governor of the State of Utah was sup- posed to be here this morning, but he heard Bracken Lee was in town and he took a runout powder. So without any further ado, I am just going to present the Mayor of Price, Utah, who is perhaps better known to all of you than anybody else. Mayor Bracken Lee.

Jan 1, 1942

President Robert E. Murray opened the meeting at 9:30 a.m. He called on the Auditing Committee to give its report. Jack Leech read the report and asked that it be approved. A motion was made, seconded and carried. The Resolutions Committee was asked to present its report. Mr. J. F. Ratchye submitted the following: (1) RESOLVED. Whereas, in the year since the last convention of The Rocky Mountain Coal Mining Institute, the Institute and the Coal Mining industry have suffered the loss through death of the services of: James L. Elder William T. Gibbs Julian E. Tobey John H. Plehn NOW, THEREFORE, BE IT RESOLVED, that there be spread upon the minutes of The Rocky Mountain Coal Mining Institute recognition of the passing of these members, who have so greatly contributed to the advancement of the industry, both nationally and in the Rocky Mountain area, and that a copy of this resolution be sent to the next of kin as evidence of the sincere regard and sympathy of the members of the Institute. (2) RESOLVED: that in recognition of faithful service to the coal industry generally, and to this Institute, Life Membership in The Rocky Mountain Coal Mining Institute be hereby con¬ferred upon the following members:

Jan 1, 1979

Past President Ralph Moore opended the meeting at 9:30 a.m. He thanked all the committees for their part in making the 1977 meeting the success is was. He then turned the meeting over to President-elect, Shirl McArthur. President McArthur called on the Auditing Committee to present its report. Gabe Ishley, Chairman, read the report and asked that it be approved. A motion was made, seconded and carried. Loren Linville gave his report on registration and new members which figures are in the Monday a.m. business meeting of the Proceedings. The Resolutions Committee was asked to give its report. William Bear, Chairman, submitted the following: (1) RESOLVED: WHEREAS, in the year since the last convention of The Rocky Mountain Coal Mining Institute, the Institute and the coal mining industry have suffered the loss through death of the services of: John A. Garcia John B. Huehes H. B. Lindeman Richard B. Miller Charles Pliley Wilford Ruff James Westfield

Jan 1, 1977

By Gilbert Davis

MR. DAVIS: When the Secretary asked me to continue our accident experience in safety work at Dawson to cover the year just closed, I rather felt that he was asking 'a good deal, for we had said about everything that we could last year. I am not going to say very much, but in line with his request I have merely brought the figures up to date. I want to say, to start, that 1934 was, rather disappointing. It was the poorest year since 1930, as you will notice (indicates on diagram). This first column represents the accidents per thousand shifts worked. We cannot assign any real valid reason for the increase. We think we worked just as hard, but we are rather inclined to lay it onto the times; in other words, to lay it to the unrest and the changing conditions that are existent not only in this country but probably all over the world. We had twelve lost time accidents last year. As I explained last year, a lost time accident with us is an accident wherein the injured man is not able to return to his regular work, the next day-the day following the injury. So this represents (indicating) the lost time accidents per thousand shifts worked. We had one fatality in the twelve accidents which is reflected in the severity rates, which are also based upon thousand shifts worked instead of per million hours. The reason we are on the thousand shifts worked is be¬cause the Copper Branches of the Phelps-Dodge Corporation are all kept that way, and we are on the same basis for easy comparison.

Jan 1, 1935

By W. T. Ferguson

Mr. Chairman, Members of the Rocky Mountain Coal Mining Institute: It seems particularly appropriate that we come at this time to make a report on a phase of mechanical, mining of coal which had its birth in this region and was cradled and nurtured here until it assumed a lusty manhood that has made its presence felt in every coal field in this country and in foreign fields as well. More than twenty years ago shaker conveyors were introduced into the states covered by your Institute, and immediately, forward looking men saw that here were possibilities for the operator's dream of a continuous flow of coal from face to tipple, if this latest device could be made self-loading. The skill and ingenuity of men in the Rock Springs district quickly brought this about and in but a few short years .more coal was being loaded by Duckbills in this field than by any other means. Not content with this outstanding success, still other men dreamed of having this same Duckbill moved across the face under its own power, and so this same district produced the first power swing Duckbill.

Jan 1, 1947

By William M. Wallace

Mr. Chairman and Gentlemen: The subject, "Shake It for Results," may or may not suggest just what is to be shaken, or just what results are to be obtained. I can assure you that if you are thinking about anything outside the realm of pure mining application you have come to the wrong meeting, and if this be the case, you have come to hear a subject discussed that I am not prepared to undertake-at the moment, at least. At the very beginning of time, results were definitely obtained by shaking. If you will recall, Eve shook a certain tree of forbidden fruit-need I recount to you the results that were, and are still, being credited to that bit of engineering? To get closer to the subject at hand, it is the intent of this paper to touch generally on the shaking, principally the vibratory shaking, of materials on a piece, or pieces, of perforated metal or screen cloth. Through the evolution of such a motion we find that great strides have been made toward a highly efficient "operation which is an essential factor in the mining world of today. The object of the shaking motion is to more efficiently separate one size material from another, according to the openings in the screening medium over which it is passed. Sizing is an important operation in every ore dressing, coal prepara¬tion or other mineral-preparing plant for reducing the product to a form more concentrated or more convenient for utilization than that in which it was mined. In coal preparation, market requirements, convenience, custom, and efficiency in combustion necessitate grading mined coal by sizes. All ore-dressing or coal preparation plants therefore must have what is called screening, sizing, or grading apparatus.

Jan 1, 1941

MR. C. M. GODDARD: Mr. Poli invented this little safety switch box. This junction box he has does improve the appearance mentioned in the underground junction boxes used in the foreign countries, where this thing is compulsory. There was some arrangement whereby the attachment could not be made with the switch in. The switch has got to be out of place before they can put the terminals into this box, which avoids all possibilities of short-circuits, except where protected on the inside of this box. In mines that are not gaseous, this is not so essential, but he has invented a very small junction box which probably. could be built for six or eight or ten dollars; if those things are necessary, for the handling of mining machines and their apparatus, takes current off the transmission line, and he has something that would meet that requirement, and I think when it is looked into it will meet the approval of the Bureau of Mines. He had this little box yesterday, and some of the members had looked it over and think, if they will look more favorably into it, they will find something to their advantage. PRESIDENT PRYDE: I think it is a good idea to bring in safety appliances and devices at this meeting. There were two more devices brought in here this morning; one a safety powder flask, and the other a carbide can. We have talked a great deal about permissible powder. It is going to take a little time to change over, and we would have to use the black powder cans. I will leave them in the window, if you care to investigate them.

Jan 1, 1924

The Friday morning session of, the Forty-seventh Meeting of the Rocky Mountain Coal Mining Institute was called, to order in the junior Ballroom, Hotel Utah, Salt Lake City, Utah, at 9:20 o'clock a. in., with Mr. Paul L. Shields presiding. CHAIRMAN SHIELDS: Let us get started, gentlemen. We are late now. From the looks of this agenda we are going to have a busy forenoon. The first item on this program is a talk on "The Second Underground. Gasification Experiment at Gorgas, Alabama," by Mr. James L. Elder.

Jan 1, 1951

The final session of the meeting was preceded by a movie, "Contact That Kills," which was a color film clearly pointing out various causes of electrical accidents in mines and how such accidents could he prevented. This film was made underground and produced by the U. S. Bureau of Mines for use in teaching accident classes. President R. R. Williams, Jr., called the meeting to order and introduced Mr. Leif Arentzen of the Lee-Norse Company, Charleroi, Pennsylvania, who spoke on "Coal Mining in Australia." The text of his address is as follows: "I arrived in Australia in February of this year-my father sent me over there for an installation. He preceded me as he does in most things, and set up a showing of our machine in Australia. We had 200 of the top level coal mining men visit this showing. They were interested in what the Americans are doing and what the American manufacturer had to offer them. Conditions in Australia are very similar to our mining conditions in the United States and they have looked to us, the coal industry in general, because we have the know-how in answering some of their problems. They feel that European methods and their type of machines are too inadequate to cope with their conditions. My visit was to South Wales, 60 miles south of Sidney. Their mining operation resembled mining coal in Florida. The work is on about a 500-ft. elevation about three miles from the ocean and when you turn around and see about 30 miles of beach, it is quite a picture - the Pacific Ocean is so blue. The coal seam is about ten feet of relatively clean coal. Labor relations are very, very taught right now. They are agitated by a strong Communistic influence and their weekly publication is known as the ?Common Cause,? which is against mechanization of coal mines." Mr. Arentzen enlarged on the fact that America was the example they held before them and described the Australian coal men and their character.

Jan 1, 1959

The Third Session of the Forty-Sixth Meeting of the Rocky Mountain Coal Mining Institute convened at the Hotel Colorado, Glenwood Springs, Colorado, June' 20, 1950, at 9:30 a.m., G. E. Sorenson, President, presiding. PRESIDENT SORENSON: The meeting will come to order. To refresh your memory, I will read off the names of the people on the various committees. President Sorenson read off the names on the committees. Mr. Whiteside, do you wish to make an announcement? MR. WHITESIDE: Yes, I would like to 'say a word. .4s you know, this afternoon you will be on your own, and I think some would like to go to Rifle. I wonder if we could get a vote on that now as to how many would like to go to Rifle, as they at Rifle would like to know so they can provide conveyances. There seems to be about 14 or 16 that would like to go to Rifle.

Jan 1, 1950

The Fourth Session of the Forty-Sixth Meeting of the Rocky Mountain Coal Mining Institute convened at the Hotel Colorado, Glenwood Springs, Colorado, June 21, 1950, at 9:30 a. m., G., E. Sorenson, President, presiding. PRESIDENT SORENSON: The meeting will conic to order, please. Gentlemen, we have quite a program this morning, so we had better push this thing along. Be fore we start this morning, I would like to ask Mr. Davis if he wouldn't come up and say a word or two for us. He is the editor of Coal Age. Mr. Davis. MR. DAVIS: This is quite an unexpected honor. I didn't know that I would be called on to speak to you. It will be brief, but very sincere. I have enjoyed every minute of my stay here with you people in the west. It is my first visit out this way, and I have enjoyed every minute of it. I have two more weeks to go out here, and I will probably see a lot of you in your own back yards.

Jan 1, 1950

By L. M. Cooley

The coal stripping project of the Edna Coal Company in Routt County, Colorado, near Oak Creek, is not greatly different than many other such projects in the United States-with two rather significant exceptions. The project is at an altitude of approximately 8,000 feet, and the topography is that characteristic of mountainous terrain. The first exception-that of high altitude-makes year round operation a challenge. The second exception-that of rugged topography makes the haulage of materials a difficult task.

Jan 1, 1948

James Westfield, Assistant Director, United States Bureau of Mines, Washing- ton, D. C., called the second morning session of the Rocky Mountain Coal Mining Institute to order, and promptly introduced John Peperakis, Manager of the Sunnyside Operations, Kaiser Steel Corporation. Sunnyside, Utah, who spoke on "Ground Control Developments, Sunnyside Mines, Kaiser Steel Corporation." Mr. Peperakis illustrated his talk with a number of slides which were not reproduced with the printed text. (For the printed text of Mr. Peperakis' paper see index.) James J. Diamanti, President of the Car- bon Fuel Company, Helper, Utah, was introduced by Mr. Westfield, and he spoke on "Small Mine Operators Help Themselves." Questions from the floor followed Mr. Diamanti's talk.

Jan 1, 1961

The final session of the Rocky Mountain Coal Mining Institute was called to order by retiring President, A. Z. Dimitroff. The report of the Auditing Committee was given by E. C. Horne, Acting Chairman of that committee. Motion was made by Dock Schloss that the report he accepted; seconded and carried. Oren Bridwell, Chairman of the Resolutions Committee, gave the following report: Resolved: That the members of the Rocky Mountain Coal Mining Institute in convention assembled, hereby ratify and confirm all official actions of the officers, the Executive Committee and other committees of the Institute between June 29, 1960, and the present time.

Jan 1, 1961

Preceding the regular meeting, "Harvest from the Sky" was shown, an action-packed movie demonstrating how man and machines provide Denver with water. This vividly colored picture illustrated the magnitude of the job, highlighting the construction scenes at the 23-mile Harold D. Roberts tunnel, many scenes of which were taken underground at the face. Presiding was Mr. John Peperakis, Alanager, Sunnyside Operations, Kaiser Steel Corporation, Sunnyside, Utah, who called the regular meeting to order at 9:30. Mr. Peperakis introduced Mr. Otto A. Wiesley, Chairman, Industrial Commission and Utah Labor Relations Board, Salt Lake City, Utah, who spoke on "Functions and Policies of the Industrial Commission of the State of Utah." It was with obvious pride that he discussed the Medical Panel in use and the successful operation of the Indus- trial Commission in Utah, stressing the fact that the most important word in their vocabulary was "cooperation." (The text of his address appears later in these proceedings; see index for page number.)

Jan 1, 1959

The Wednesday morning session was opened by President Max Robb at 9:30 a.m. He thanked the various committees, speakers and all participants in making the 67th meeting a success. He called on David M. Lane, Chairman of the Auditing Committee, to give his report. He read the report and asked for a motion to approve it. Motion was made, seconded and approved. (See Treasurer's Report on page 5.) Walter E. Duncan, Chairman of the Resolutions Committee, gave his report, which follows: RESOLVED: WHEREAS, since the last convention of the Rocky Mountain Coal Mining Institute, the Institute and the Coal Mining Industry generally has suffered the loss through death of the services and fellowship of: Kenneth G. Eaton Frank Field C. M. McConnell George H. Smith Glen E. Sorensen Harry Tibbs Carl H. Zietz NOW, THEREFORE, BE IT RESOLVED, That this Institute does give recognition to the contribution of these outstanding men to the Coal Industry and to the programs and objectives of the Institute, in recognition of which a copy of this Resolution shall be included in the permanent minutes of the organization and transmitted to their respective families.

Jan 1, 1971

By John E. Willson

Typical of southwestern Wyoming are coal structures that dip from 4 degrees to 17 degrees. Those at the Reliance and Winton mines of the Union Pacific Coal Company average 9 1/2 degrees and 15 degrees, respectively, and dip almost directly to the west. By using a hoist for main haulage. a method of mining has been developed whereby four places are driven on the pitch of the seam. Slightly upgrade from the strike at intervals of 300 feet, a two-entry system is driven to the north and to the south. In both fields, which are non-gassy, an exhaust system of ventilation is used. Slope, manway, and lower or haulage entries are placed on the intake. Two air-courses and upper or breaking entries are placed on the return. A retreat system of mining is used exclusively. From the opening of its first coal mine, in the year 1868, until 1923, when the Joy Loader was introduced into the Union Pacific Coal Company's operations, slopes, aircourses and manways were driven by hand. Development work was conducted on the night shift or off shift, and the main hoist was used for haulage. The slope was driven down the pitch with crosscuts turned at intervals of 75 feet and entries at 230 feet. Connections to the workings above were made by driving up the pitch 75 feet. Mule haulage was used to furnish cars to the hand loaders driving planes up the pitch. A sheave was placed at the upper end of the plane with a 1 1/4¬ inch hemp rope doubling around it and having one end attached to the car and the other to the mule. The mule, pulling downhill, raised to the working face a small wooden car of one-ton capacity.

Jan 1, 1941

The Saturday morning session of the Forty-seventh Meeting of the Rocky Mountain Coal Mining Institute was called to order at 9:30 o'clock a. m., June 9, 1951, in the Junior Ballroom of the Hotel Utah, Salt Lake City; Utah, with Mr. A. P. Cederlof presiding. CHAIRMAN CEDERLOF: Mr. Whiteside suggests that we have the Treasurer's Report. Would you like to read this report,: Mr. Reese? MR. GOMER REESE, SR.: Gentlemen, we have here the Auditor's report. A. B. Foulger, President The Rocky Mountain Coal Mining Institute Dear Mr. Foulger: Following is the report of the Treasurer from May 31, 1950 to May 31, 1951: [ ]

Jan 1, 1951