Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 19
es—Development ofGas Weld ng — Gases and Iheir Sources — Oxyacetyli nc Welding — Oxyhydro-gen Welding — Blaugas Wt-lding — Cutting with Gasp<—Dangers of the (^nsSystems—( hemical Welding—Thermit Welding—Miscellaneous Systems—Weld-ing Operations and Costs—Welding in Europe Glossary Page 427… … MODERN LAND AND SUBMA-RINE TELEGRAPHY HISTORICAL INTRODUCTION The word telegraph is derived from two Greek words meaningto write afar, but the meaning of the term has never been limitedto devices that write. At present, the word telegraph means adevice or a system of devices with which, by means of…
Electrical engineering
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