Carbons

Examples

• While the arcs with plain carbons are bluish-white, those with carbons containing calcium fluoride have a notable golden glow. Frank Lewis Dyer. Edison, His Life and Inventions.
• Metal tubes T T connected the conducting wires F F to the carbons. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
• With the best vacuum that he could then get by means of the ordinary air-pump, the carbons would last, at the most, only from ten to fifteen minutes in a state of incandescence. Frank Lewis Dyer. Edison, His Life and Inventions.
• Four forms of arc light with special carbons. Frank Lewis Dyer. Edison, His Life and Inventions.
• Edison was not satisfied with paper carbons. Frank Lewis Dyer. Edison, His Life and Inventions.
• Clock mechanism for thus regulating the feed was first employed, which served to automatically keep the carbons a definite distance apart, this being a necessary condition of the arc. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
• Brush adopted a three-wire system; and both obtained a uniform consumption of the carbons. William Henry Doolittle. Inventions in the Century.
• The great necessity for more durable carbons became a desideratum so urgent that the tireless inventor decided to commission another explorer to search the tropical jungles of the Orient. Frank Lewis Dyer. Edison, His Life and Inventions.
• Edison also tried hard carbon, wood carbons, and almost every conceivable variety of paper carbon in like manner. Frank Lewis Dyer. Edison, His Life and Inventions.

Typist: Randall