By Samuel C. Miller
This ebook has been written with varieties of reader in brain: the newcomer who wants to manage a neon-manufacturing plant, and the skilled guy who's already manage within the company. the categories of data required by way of those varieties of males are various, in fact. The newcomer must understand how neon tubes function, tips on how to arrange the plant apparatus, and the way to exploit it for production tubes. he'll no longer have an interest within the extra complicated difficulties till he has mastered the basics. The skilled guy, nonetheless, has his apparatus manage and in operating order. He has synthetic tubes with it. he's attracted to generating greater tubes, expanding their lifestyles, enhancing his gear for larger speeds of construction, or fixing such technical difficulties as acquiring strange colour results and new different types of animation. as a way to supply an invaluable publication for either forms of males, the authors have endeavored to give an entire photo of the manufacture of neon symptoms, their set up, and upkeep, starting with the elemental strategies and operations and finishing with the extra complicated difficulties. The newcomer will locate that he has desire, or finally may have desire, of the entire info awarded. it's endorsed, for that reason, that he learn the e-book via, so far as Chap. XIV, sooner than venture to put in gear or manufacture symptoms. The skilled neon producer, nevertheless, can be accustomed to some of the procedures defined. he'll locate the booklet so much precious as a reference advisor, to be used either in fixing strange difficulties and in gaining knowledge of specific levels of the paintings that could provide him hassle. For his gain, the next define of the e-book is presented.
(Typographical blunders above are as a result of OCR software program and do not happen within the book.)
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Forgotten Books is a writer of ancient writings, corresponding to: Philosophy, Classics, technological know-how, faith, His
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Additional resources for Neon signs; manufacture--installation--maintenance
The current through the tube is accompanied by the passage of free electrons and ions from the gas into the electrodes. The heavier the current the more electrons or ions Each time that will flow to the electrodes in a given time. an ion hits the electrode, the energy with which it hits is transformed into heat, and as a result the electrode heats up. Hence, the heavier the current the hotter the electrode becomes. If the current is excessive, the electrode will begin to disintegrate, or even to melt.
At one time, xenon and krypton were considered as sub- stitutes for argon in gas mixtures because of their low resistance. But these gases had no apparent advantage over argon-neon and because of their very great cost have not been used to any great extent. Krypton is used in hot-cathode window-lighting units, since the low ionizing potential aids in starting the tube. A mixture containing krypton was developed also which would give a blue color without the use of mercury, but this mixture was found to be inferior to the standard mercury- argon-neon method.
Argon. Argon gas, from argon, "the inactive one," exists to the extent of 1 part in every 106 of the air we breathe. Suspected as early as 1796, by Cavendish, its existence was not definitely proved until 1893 by Ramsay, who named it " argon" because of its extremely inert character. The gas is about twice as heavy as neon. In 1914, its commercial NEON SIGNS 42 extraction was undertaken, not for the luminous-sign trade but because it was found that incandescent lamps filled with argon had a much higher efficiency and longer life than vacuum lamps.