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Jan 1, 1982

Jan 1, 1980

By NA N/A

Jan 1, 1931

Jan 1, 1979

By G. A. Knox

Mr. Chairman and Gentlemen: The subject assigned to me would cover a great many pages if it were gone into thoroughly. Therefore. I have just touched on a few of the most important points. I think that everyone engaged in the production of commercial coal understands all about its preparation, but I will set forth my views as to how I believe it is best accomplished. In order to produce the best prepared coal, your first attention should be to the miner at the working face. The most careful system of blasting should be adopted to avoid heavy charging of holes which results in the shattering of the coal. The lump, or any other screened sizes that may be screened from coal that has been improperly shot, are subject to greater degradation in transportation and handling, as well as reducing screened sizes, which results in dissatisfied customers in the first case, and lower realization in the latter.

Jan 1, 1928

Jan 1, 2009

Jan 1, 1952

Jan 1, 1927

Jan 1, 1988

GARY STUBBLEFIELD RMCMI PRESIDENT 1993-1994 on behalf of the RMCMI Board of Directors and Officers of The Rocky Mountain Coal Mining Institute cordially invites you and your family to attend the 90th Regular Meeting and Convention June 26 thru 28, 1994 Snowmass Resort, Colorado

Jan 1, 1993

By Grainne A. Matthews

Jan 1, 2008

Jan 1, 1976

By J. M. Shafer

Jan 1, 2005

Jan 1, 1995

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Jan 1, 1996

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Jan 1, 1992

A Joy Global Inc. Company [ ] ? Joy Global Inc. headquarters located in Milwaukee, Wisconsin ? P&H Mining Equipment surface mining equipment and support ? Joy Mining Machinery underground mining equipment and support

Jan 1, 2007

Jan 1, 1985

MR. GERALD ALLEY (C 11 i e f Draftsman, C. F. & I. Co.) : This invention is primarily intended to correct anything that goes wrong with the fan and any conditions in your air current underground which do not produce a change in your fan water gauge

Jan 1, 1925

By Jim Freeman

After testing 30 fourth year mechanical trade school students with our final mechanical apprentice test, only one passed. ?Most western technical trade school students tested ?Test result average was 52% ?NMC graduating apprentice average is 78% (75% passing requirement) ?Our mechanical test has 200 questions; Electrical test 110 questions

Jan 1, 2010