"Electric Bells and All About Them: A Practical Book for Practical Men" by Selimo Romeo Bottone. Published by Good Press. Good Press publishes a wide range of titles that encompasses every genre. From well-known classics & literary fiction and non-fiction to forgotten−or yet undiscovered gems−of world literature, we issue the books that need to be read. Each Good Press edition has been meticulously edited and formatted to boost readability for all e-readers and devices. Our goal is to produce eBooks that are user-friendly and accessible to everyone in a high-quality digital format.
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Selimo Romeo Bottone. Electric Bells and All About Them: A Practical Book for Practical Men
Electric Bells and All About Them: A Practical Book for Practical Men
Table of Contents
PREFACE
ELECTRIC BELLS
CHAPTER I
PRELIMINARY CONSIDERATIONS
CHAPTER II
ON THE CHOICE OF BATTERIES FOR ELECTRIC BELL WORK
CHAPTER III. ON ELECTRIC BELLS AND OTHER SIGNALLING APPLIANCES
CHAPTER IV. ON CONTACTS, PUSHES, SWITCHES, KEYS, ALARMS, AND RELAYS
CHAPTER V. ON WIRING, CONNECTING UP, AND LOCALISING FAULTS
ADDENDUM. The Gassner Battery
INDEX
WHITTAKER'S LIBRARY OF ARTS, SCIENCES, MANUFACTURES AND INDUSTRIES
Отрывок из книги
Selimo Romeo Bottone
Published by Good Press, 2021
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and the more complex acids, in which the electro-negative component is a compound, such as sulphuric acid (built up of 1 atom of sulphur and 4 atoms of oxygen, united to 2 atoms of hydrogen) or nitric acid (consisting of 1 nitrogen atom, 6 oxygen atoms, and 1 hydrogen atom), may advantageously be retained in memory by the aid of the abbreviations:—
When zinc does act on an acid, it displaces the hydrogen contained in it, and takes its place; the acid losing at the same time its characteristic sourness and corrosiveness, becoming, as chemists say, neutralized. One atom of zinc can replace two atoms of hydrogen, so that one atom of zinc can replace the hydrogen in two equivalents of such acids as contain only one atom of hydrogen.
