Search Documents

Jan 1, 1942

Jan 1, 1938

Jan 1, 1938

[ ]

Jan 1, 1907

Jan 1, 1913

[ ]

Jan 1, 1907

Jan 1, 1885

Jan 1, 1911

PRESIDENT. CHARLES F. RAND,1 NEW YORK, N. Y. PAST PRESIDENTS. CHARLES KIRCHHOFF,1 NEW YORK, N. Y. JAMES F. KEMP, 2 NEW YORK, N. Y. FIRST VICE-PRESIDENT. BENJAMIN B. THAYER,1 NEW YORK, N. Y. TREASURER. GEORGE C. STONE,1 NEW YORK, N. Y. SECRETARY EMERITUS. ROSSITER. W. RAYMOND NEW YORK, N. Y. SECRETARY BRADLEY STOUGHTON, NEW YORK, N. Y.

Jan 12, 1913

California Academy of Sciences, Golden Gate Park, San Francisco, Calif C E Grunsky, President A price list of the publications of the Academy will be sent upon request The voluminous literature issued by the Academy deals principally with subjects in the fields of botany, zoology and biology. The Proceedings are issued as volumes, but separates of each paper contained in the proceedings may be obtained at prices indicated in the list of publications A few of the papers which may be of interest to geologists, follow, and indicate the scope and character of the papers of the Society

Jan 1, 1933

The next meeting of the Institute, the 113th meeting, will be held in Arizona in the latter part of September, 1916. All papers to be presented, at this meeting must be published in the September Bulletin or previously. Manuscripts must, therefore,' be in the hands of the Secretary of the Institute not later than July 1. In case manuscripts are given by authors to members of technical committees, or others, they must be in the hands of such persons sufficiently in advance so that they may be actually in the hands of the Secretary of the Institute by the date mentioned. In the past, the Secretary has received urgent requests for special consideration regarding manuscripts that come in after the closing date. In view of the obvious unfairness of this, the Committee on Papers and Publications has instructed the Secretary not to accept for presentation at the Arizona Meeting any papers received later than July 1, 1916.

Jan 3, 1916

A completely automated primary crusher is now in operation at Kaiser Steel Corp.'s Eagle Mountain, Calif., iron mine. The word "completely" is italicized to underscore its literal meaning- automation so thorough that even the control room for the crusher does not require a man to watch the flickering dials and lights. The automation of the unit is such that its operation, including starting and stopping, are controlled from the secondary crusher station. The crusher-a Symons 60-in. gyratory which can handle 3600 tph-features built-in safety devices that will turn the crusher off if oil pressure drops, if oil overheats, if bearing temperatures exceed permissible limits, or if parts of its electronic brain fail. According to reports, the worst that can now happen is a plugging of the crusher.

Jan 6, 1963

By AIME AIME

AT the meeting of the Iron and Steel Division at Cleveland, Sept. 10-12, the morning of Thursday, Sept. 12, has been set aside for an excursion to visit the ore docks, blast furnaces, and steel plants. A special train, made available through the courtesy of Appleton Cleveland, general superintendent of the Pennsylvania Railroad, will leave the siding near the Auditorium at 8.35 a. m. The trip will be free, but tickets must be' obtained in advance at the booths for registration for excursions at the Auditorium. An hour will be spent at the docks, an hour at the Central blast furnaces, and two hours at the Cuyahoga works of the American Steel and Wire Co. A buffet luncheon will be served, with the compliments of the Pennsylvania Railroad Co., on board the train en route. At the Tuesday morning session, Sept. 10, a motion picture showing the operations in making wrought iron by the Aston process will be shown for the first time.

Jan 1, 1929

At the close of the current academic year, there will be eight vacancies to be filled in research graduate assistantships which are maintained by the Engineering Experiment Station of the University of Illinois. In addition to these assistantships, there are available two research graduate assistantships in gas engineering, which are supported by the Illinois Gas Association. These assistantships, for each, of which there is an annual stipend of $500 and freedom from all fees except the matriculation and diploma fees, are open to graduates of approved American and foreign universities and technical schools who are prepared to undertake graduate study in engineering, physics, or applied chemistry. An appointment to the position of Research Graduate Assistant is made and must be accepted for two consecutive collegiate years, at the expiration of which period, if all requirements have been met, the degree of Master of Science will be conferred. Not more than. half of the time of a Research Graduate Assistant is required in connection with the work of the department to which he is assigned, the remainder being available for graduate study.

Jan 3, 1919

By Ernest P. Hall

At the SME Fall Meeting held in Phoenix, Ariz. last October, Ernest P. Hall, addressing an Air and Water Pollution session, noted that water pollution caused by acid drainage from bituminous coal measures had begun long before recorded history. "Until recently," he said, "man did not begin to understand the physical phenomena which took place to cause [it] and even today he does not know what can be done to prevent it." CAUSES "It is known from the reports of early explorers that drainage from bituminous coal measures was causing water pollution before coal mines were opened on this continent. They noted the nature of the polluted water in the runs and creeks and predicted the presence of substantial deposits of coal based on the appearance and character of the water. Even today, polluted water drains from virgin coal areas which have not been touched by mining machines," Mr. Hall said.

Jan 1, 1966

By AIME AIME

BUILDING This building is so near completion in every respect that the Trustees expect to take possession of it December 15, and it may be anticipated that the three Founder Societies will occupy their respective quarters in it before January. The official "house-warming? will take place at a considerably later date, to be hereafter announced. Under these circumstances, it is deemed unnecessary to give here any detailed report of the present condition of the work. Full particulars will doubtless be published in the Bi-Monthly Bulletin, No. 13, January, 1907

Nov 1, 1906

URANIUM is commonly recovered by either column ion exchange (IX) or basket ion exchange (RIP) from solutions resulting from sulfuric acid leaching of uranium-bearing ores. In both operations a solid state ion exchanging resin is used, the major difference being that practically clear uranium pregnant solutions are required for passage through resin columns whereas in RIP, leach slurries from which only the sands have been removed are caused to flow through ion exchanging resins contained in baskets. The solvent extraction process as used for recovering uranium from acid leach solutions is also an ion exchanging process, but one in which the ion exchanging medium is a liquid rather than a solid state resin. For this reason, SX is often referred to as liquid ion exchange, although liquid- liquid extraction is probably more accurate. Uranium in its sulfuric acid leach solutions exists in an equilibrium that may be visualized as follows: [ ] Because of an equilibrium of this nature, uranium may be recovered on either cation exchanging or anion exchanging resins and then concentrated during the resin eluting operation. Similarly, solvent extraction processes may utilize either anion ex- changing or cation exchanging liquid organic phases, which capture the uranium and permit its subsequent concentration when the organic phase is stripped.

Jan 9, 1957

By Thomas L. Watson

My thanks are due to Mr. Frank Firmstone, Easton, Pa., who has called my attention to the statement in my paper' that " Barite, fluorite and quartz, thougll not observed in the Tennessee area," ... as possibly misleading to the reader, if construed to mean that such a discovery had never been made. Mr. Firmstone is correct in assuming that this statement referred only to the study of the worked areas of the metallic ores, especially zinc, made in the course of the survey upon which my paper was based. The occurrence of barite and fluorite with lead-ores in Tennessee was reported by Prof. Safford? in 1869, and by Safford and Killebrew? in 1887, with the further statement that about 1,000,000 lb. of barite were annually mined in Greene, Washington and Jefferson counties, Tenn., and that considerable deposits occur also in McMinn, Smith and other counties. It is also noted that the barite " usually occurs in veins, associated with galena." The present worked areas of barite are, however, distinct barite propositions, without workable quantities of either lead or zinc, so far as mining operations have gone, and the areas are more or less removed from the present areas of zinc-ores. Mr. Firmstone informs me also that, in 1892, he observed, in the magnesian limestone at Watauga Point, in Carter county, on the left bank of the Watauga river, a little below the mouth of Buffalo creek, small quantities of galena and some fluorite.

Jan 1, 1907

By Andrew Roy

THE Mahoning Valley coal region lies on the extreme northern outcrop of the Ohio coal-field, and all the mines, with one exception, are opened on the lower coal of the series, No. 1 of the Ohio Geological Survey. The coal ranges from an inch to five, six, and sometimes seven feet thickness, the workable height being between two and a half and six feet. There are two varieties of coal, known in market as "Briar Hill coal " and " Mineral Ridge coal;" both varieties are drawn from the same seam. The Briar Hill coal is generally called block coal, and is the kind so largely used in a raw state in smelting iron. It pos¬sesses a laminated structure, easily splitting into horizontal sheets, but is very difficult to break in the opposite direction. The faces of the layers are often covered with a soft, dead, carbonaceous material, like charcoal, and the whole seam throughout is marked by alternate layers of dead and bright-looking coal. In the act of combustion the coal neither swells nor changes form, the masses retaining their shapes until they fall to ashes in the furnace. The Mineral Ridge variety is much softer, and is also shorter in the grain than the Briar Hill. kind, and it contains a good deal of

Jan 1, 1876

Seventeen members of the Board were present, and the Secretary of the Institute. During part of the meeting, seven other Members of the Institute were also present as guests. After extended discussion, the Board approved the general principles embodied in the War Minerals bill, and recommended the passage of a bill embodying these principles. The vote stood 14 in favor and two opposed, one member not voting. On motion, duly seconded, it was RESOLVED, that in connection with the appointment of the proposed War Minerals Administrator, the attention off the War Minerals Committee be called to the importance of selecting a man trained in the mining and metallurgical industry, but having no pecuniary interest in these industries. John V. N. Dorr was elected Director to fill the vacancy caused by the election of Robert M. Raymond as Vice-President. Charles W. Goodale was elected First Vice-President. George C. Stone was elected Treasurer. Rossiter W. Raymond was appointed Secretary Emeritus. Bradley Stoughton was elected Secretary. The following committees were elected: Executive Committee, Finance Committee, Committee on Papers and Publications, Committee on Membership, Library Committee, Committee on Nominations, Committee on Safety, Sanitation and Welfare. John V. N. Dorr was appointed Chairman of the Committee on Increase of Membership.

Jan 4, 1918