Search Documents

Jan 1, 1935

Jan 1, 1924

George H. Abeel, Hurley, Wis. (communication to the Secretary) : Doubtless Mr. Boss did not mean to be understood as saying that the dikes of this range are everywhere overlaid with iron-ore. I know of places where the dark, massive dike is found near the surface, but no ore is found on it. And his statement (p. 557) that a wherever the slightest inclination is shown it is always to the east," should be modified to " usually." There are several instances of a westward pitch, e.g., at the Palms, Newport and Odanah properties, and also at the Montreal mine, where we encountered in the ore a small dike pitching west. Mr. Boss's statement (p. 559) that. the ore of the Pence mine lens " has all been removed from the Pence and Father Hennepin lands, and practically from the Montreal property, and is now being wrought by the Montreal Mining Company on the ' Sec. 33' property," does not convey the exact state of the latter company's operations. We are still mining ore on the Montreal property from the lens referred to, and expect to continue doing so for some little time to come. On the other hand, we are getting a shaft down to the ore on the " See. 33 " property, but ye have not yet encountered the dike. This can hardly be considered as working the ore. I do not understand upon what evidence Mr. Boss can consider the correctness of a previous hypothetical location of the dike to have been established " within 2 feet," when the dike has not yet been reached. Possibly he has been misled by hearsay reports.

Jan 1, 1898

By Kenneth Seaver

Discussion of the paper of KENNETH SEAVER presented at the San Francisco meeting, September, 1915, and printed in Bulletin No. 105, September, 1915, pp. 1913 .to 1927. J. W. RICHARDS, South Bethlehem, Pa.-This paper concerns a very large industry, and an important detail in that industry. Within sight of where I live in Bethlehem, Pa., are coke works in which $2,500,000 was lost by the use of improper bricks in the coke ovens. This was the fundamental reason of the failure of the plant. The old ovens have all been torn out and replaced by new ovens built of proper bricks. This may emphasize the commercial importance of this subject. When speaking about coke-oven brick, the first thing that comes to my mind is how important it would he if it were possible to. get a brick of better heat conductivity. The heat for coking coal has to go through the thickness of the brick. The silica brick used has low heat conductivity as compared with some other refractories; magnesite brick probably has four times its heat conductivity. The coke oven needs bricks of high heat conductivity. Any process which would increase the heat conductivity of silica brick would undoubtedly shorten the coking process.

Jan 12, 1915

“IT is decreed by Divine Providence that those who know what they ought to do and then take care to do it properly, for the most part meet ' with good fortune in all. they, undertake; on the other hand, misfortune overtakes the indolent and those who are careless in their work." These are the words of Georgius Agricola. to. those who are engaged in mining, taken from De Re Metallica, Book II, second paragraph. Safety in mining is just that simple, when considered on the basis of the individual. The words imply a .knowledge of what is to be done and how to do it. Armed with this knowledge it is only necessary to proceed with diligence and care to achieve the desired end without personal or financial mishap. Obviously the complication arises in the large company operating numerous mines and the consequent ramifications of company structure embodying management, supervision, engineering, and labor. Agricola stresses later on the importance of supervision and direction by the owners of the mine. We know that this principle is recognized today by the frequency with which the statement is repeated "a safety program must stem from management." People charged with responsibility for safety and management also stress the importance of securing the cooperation of the employees in formulating and carrying . out safe working practices. Safety committees consisting of employees, supervisors, and. representatives of management are recognized as the most practical method of achieving safety consciousness in all levels of mining company organization.

Jan 1, 1952

Jan 1, 1935

Jan 1, 1927

By WALTER CARROLL

Between cross currents of economic factors and international expediencies the iron and steel industry in 1948 made an outstanding contribution to the general economic picture. Were it not for an unfortunate episode during the month of April involving a temporary shortage of coal, 1948 would have been an all-time record year in output. Exceeded in no previous peacetime year, the production of iron and steel in 1948 totaled some 88,500,000 tons. That it was a worthwhile effort of no small magnitude is evidenced by the fact that in three and one half years following the war, this nation has produced as much steel as in the five years preceding the war. This figure of 88,500,000 tons is 68 per cent greater than that for 1939.

Jan 1, 1949

Jan 1, 1938

Map

Jan 1, 1942

New Products Equipment

Jan 5, 1951

WE the undersigned, being all persons of full age and citizens of the United States, and a majority residents of the State of New York, desiring to form a corporation pursuant to the provisions of the Membership Corporations Law for the purpose of incorporating, as provided in Section 5 of Article I. of said law, the existing unincorporated association known as American Institute of Mining Engineers, do hereby make, acknowledge and file this Certificate for that purpose, and do Certify as follows: I. That the American Institute of Mining Engineers is an unincorporated association organized and existing with the object of promoting the arts and sciences connected with the economic production of the useful minerals and metals and the welfare of those employed in these industries by means of meetings for social intercourse and the reading and discussion of professional papers, and to circulate by means of publications among its members and associates the information thus obtained. II. That the persons duly appointed or designated to manage the affairs of said association are designated by the rules thereof Members of its Council; that the undersigned are all members of said Council as the same was constituted on the 29th day of December, 1904.

Jan 1, 1923

Jan 1, 1958

Jan 1, 1952

Jan 1, 1893

By Clinton H. Crane

DR. TILNEY, the great expert on the study of the development of the brain of human beings and animals, tells us that the greatest difference between the human brain and the brain of animals is that man alone has shown evidence of being able to predict the future. Just why he throws overboard the busy bee who lays up honey for the winter, the squirrel who gathers nuts, and the humble ant, I do not know. At any rate, it is nice to be assured by an authority that we have this power of prophecy. My own experience with attempting to prophesy the future has convinced me that our only possibility of being good prophets is to be good students of history.

Jan 1, 1940

Jan 1, 1939

Jan 1, 1939

Jan 1, 1933

By M. S. NORTH

IT may be a far cry from the days of the old horse whim, and it is relatively a long way back to hand production in factories. Modern machinery has made possible deep shaft-sinking, newer methods have increased the recovery of mineral. Technically, excavating and ore dressing have advanced as has mass production and its many ramifications in the manufacture of commercial product. To those of the mining industry who would have us believe that mining and manufacturing are totally different enterprises, it can be said that certain differences do exist. These differences rather than being fundamental are the result of adhering to past practices which were possibly sound years ago but do not measure up today. Differences in managerial control, sales, and distribution, cost finding, etc., are often so pronounced that efforts to compare or contrast are almost futile.

Jan 1, 1930