Union Carbide Chemicals & Plastics Technology Corporation

Other

John F Fisher

George W Schwarz, Jr

Cloid Russell Smith, Iii

Patrick M Wiegand

Courtland P Sears, Iii

Elizabeth S Ballard

John Roberts Parrish

John R Parris

The present invention is directed to methods and apparatus for conducting gas chromatography more rapidly than previously disclosed. By means of the present invention the time necessary to conduct a gas chromatographic analysis can be reduced by more than 50%. The methods and apparatus employed reduce system dead volumes to prevent band broadening and mixing of the sample components as the gas sample is analyzed. The present invention also relates to the apparatus described above as applied to controlling chemical, refining, and other processes.

Fast gas chromatography method, apparatus and applications

An edge finder held on the end of a spindle of a milling machine is provided with a flat on the outer cylindrical surface of the working end member thereof. When the edge of a work piece mounted on the table of the milling machine is slowly advanced by a machinist to contact the rotating end member, the flat thereon produces an audible clicking sound each revolution of the spindle. Moreover, upon contact, the flat on the rotating working end member causes it to vibrate radially thereby enhancing the sidewise jump thereof and making it easier for the jump to be observed by the machinist.

Audible-visual edge finder

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St. Albans, WV, United States of America

John F Fisher