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Pages 140-157

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From page 141... ... William David Coolidge was born in Hudson, Massachusetts, near Boston, on October 23, IS73, and he died on February 3, 1975 in Schenectady, New York. His father, Albert Edward, was a shoemaker by occupation, but he supplementect his income by running a farm of seven acres. Read the entire page →
From page 142... ... senior years at the East Pittsburgh plant of Westinghouse Electric. TIIness kept him out of school for a year, so he graduates! Read the entire page →
From page 143... ... WILLIAM DAVID COOLIDGE 143 exactly what he wanted; he had a greater interest in his science studies ant! the research orientation of his laboratory work. Read the entire page →
From page 144... ... with an opening in the Physics Department, so Will Coolicige was back in Boston for the fall term in 1899. The following year he became a research assistant to Professor Arthur A Read the entire page →
From page 145... ... Dr. Whitney's improvements in the lamp filament were coming to market at about the time Dr. Read the entire page →
From page 146... ... Close control of working temperatures, of tungsten powder grain size, and of trace metal adclitions, particularly thorium, contributed to the final successful result. Lamps made with ductile tungsten filaments appeared on the market in 1911, and they have clominated the lighting industry ever since. Read the entire page →
From page 147... ... The availability of tungsten as a workable metal was a new fact of industrial life that came from Coolicige's work, and the application to the incandescent filament was only the first use of this remarkable metal. Tungsten exhibits the highest melting point in the periodic table, extremely low vapor pressure, great mechanical strength, and many other unusual properties. Read the entire page →
From page 148... ... 148 BIOGRAPHICAL MEMOIRS medical application of the new tube, and Coolidge retained an interest in X-rays when he came to Schenectady in 1~905. Perhaps it was the success of the replacement of platinum with tungsten in contacts that kincIled a new interest in the X-ray tube, which then employocl a platinum anocle. Read the entire page →
From page 149... ... WILLIAM DAVID COOLIDGE 149 The success of the Coolicige Tube brought much recognition and many new honors to its inventor. It greatly expancled the use of X-rays, not only in dentistry and medicine, where therapeutic as well as diagnostic applications grew, but in industry, where they were being used increasingly for nondestructive testing. Read the entire page →
From page 150... ... 150 BIOGRAPHICAL MEMOIRS "K" tube, developer! a range of ten miles with an azimuth sensitivity of ten degrees. Read the entire page →
From page 151... ... WILLIAM DAVID COOLIDGE 151 ning as a member of President RooseveIt's Advisory Committee on Uranium. Read the entire page →
From page 152... ... Liebhafsky, Herman. William David Coolidge. Read the entire page →
From page 153... ... Potts Medal, the Franklin Institute, in consideration of the originality and ingenuity shown in the development of a vacuum tube that has simplified and revolutionized the production of X-rays. Louis Edward Levy Gold Medal, the Franklin Institute, for his paper on "The Production of High Voltage Cathode Rays Outside the Generating Tube." 1927 Gold Medal, the American College of Radiology, in recognition of his contribution to radiology and the science of . Read the entire page →
From page 154... ... Schenectady Patroonship Climax Molybdenum Wedgwood Medallion, for pioneering work leading to the invention of ductile tungsten and molybdenum. William D Read the entire page →
From page 155... ... HONORARY MEMBERSHIPS 155 The American Roentgen Ray Society The American Radium Society The Radiological Society of North America American College of Radiology The Roentgen Society, of England Societe de Radiologie Medicate, de France Nordisk Forening for Medicinisk Radiologi, Scandinavia The Pan-American Medical Association Societe Franchise des Electriciens Medical Society of the County of Schenectady The Dental Society of the State of New York The Franklin Institute Brazilian Institute for Study of Tuberculosis Brazilian Society of Medical Radiology Paulista Medical Association Chilean Society of Radiology Faculty of Physical and Mathematical Sciences of the University of Chile Faculty of Biological and Medical Sciences of the University of Chile Argentine Electrotechnical Association Sociedad Peruana de Radiologia Sociedad Argentina de Radiologia American Academy of the History of Dentistry Odontological Society of Lyon, France CORRESPONDING MEMBERSHIPS Brazilian Academy of Science National Academy of Exact Physical and Natural Sciences of Lima Societe Franchise des Electriciens Read the entire page →
From page 156... ... Some experiments with high voltage cathode rays outside the generating tube. Read the entire page →
From page 157... ... Experimental study of cathode rays outside of the generating tube. Congress International d'Electricite, Section 1, Rapport no. Read the entire page →

From page 141...

... William David Coolidge was born in Hudson, Massachusetts, near Boston, on October 23, IS73, and he died on February 3, 1975 in Schenectady, New York. His father, Albert Edward, was a shoemaker by occupation, but he supplementect his income by running a farm of seven acres.