A Handbook of Practical Telegraphy |
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A Handbook of Practical Telegraphy (Classic Reprint) Richard Spelman Culley No preview available - 2015 |
Common terms and phrases
acid action apparatus armature arranged battery battery-contact breaking cable capacity cause cells charge Chatterton's compound circuit coating condenser conductor connected copper sulphate copper wire core covered Crown 8vo Daniell cell deflection diameter direction disc discharge disconnected distance distant station earth-wire ebonite effect electricity electro-magnet electromotive force electroscope equal extra-current farads fault fixed galvanometer glass gutta-percha inches increased induction instrument insulation iron joint knot leakage length lever line-wire Logarithm loop magnet magnetised metal mile Morse move needle OHM'S LAW ohms opposite ordinary paraffin percha placed plate polarised pole portion position potential prevent produced proportion put to earth receiving relay resistance coils reversed rheostat screw shunt side signals soldered solution span strain strength sufficient sulphate sulphuric sulphuric acid surface switch telegraph temperature terminal stations touch trough vols weight Wheatstone bridge wire Woodcuts wound zinc zinc sulphate
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