_Electric Mine Signalling Installations._ A Practical Treatise on the Fitting-up and Maintenance of Electrical Signalling Apparatus in Mines. =G. W. Lummis Paterson.= Crown 8vo. 140 Illustrations. 5/- net.
CONTENTS.—Ringing Keys and Tappers. Electric Mining Bells, Signal Alarms and Relays. Electric Mining Indicators or Annunciators. Electric Generators for Mine Signal Installations. Primary Batteries for Signal Installations. Electric Mining Shaft Signals. Electric Shaft Signal Wiring. Electric Engine Plane Signals. Electric Engine Plane Signal Wiring. Appendix.
_Electric Welding and Welding Appliances._ =H. Carpmael.= Imperial 8vo. Illustrated. (The Engineer Series.) 18/- net.
CONTENTS.—Introduction. The Bernardos Carbon Arc Process. Resistance Welding. Arc Welding at Steel Barrel Works. The Pontelec Methods and Machines. The Quasi-Arc Process. Resistance Welders of the British Insulated and Helsby Cables, Ltd. Machines and Apparatus for Arc Welding. Resistance Welders of the Electric Welding Co., Ltd. Some Large American “Spot” Welders. Oil Drum Making by Resistance Welding. Resistance Welders of the A1 Manufacturing Co., Ltd. The strength of Electric Welds. A large British “Spot” Welding Machine. The “Plastic-Arc” Welding System. The “A.C.” System of Arc Welding. Index.
_Transmission Line Formulas._ For Electrical Engineers and Engineering Students. =H. B. Dwight, A.M.Am.I.E.E.= 143 pages. 28 Diagrams. 12/6 net.
_Electric Cooking, Heating, Cleaning, etc._ Being a Manual of Electricity in the Service of the Home. =“Housewife” (Maud Lancaster).= Edited by =E. W. Lancaster, A.M.Inst.C.E., M.Inst.E.E.= Fully Illustrated. 338 + x pages. Demy 8vo. 4/- net.
_Electric Mechanism._ Part I. SINGLE-PHASE COMMUTATOR MOTORS. =F. Creedy, A.C.G.I., A.M.I.E.E., Assoc. Am.I.E.E.= Demy 8vo. 7/6 net.
_Industrial Electrical Measuring Instruments._ =Kenelm Edgcumbe, M.Inst.C.E., M.I.E.E.= Demy 8vo. 430 pages. 260 Illustrations. 16/- net. 2nd Edition, entirely Re-written and Enlarged.
CONTENTS.—Errors and Accuracy. Constructional Details. Measurement of Resistances and Insulation. Potentiometers. Standard Methods of Current and Pressure Measurement. Moving Iron. Moving Coil. Hot Wire. Induction and Dynamometer Ammeters and Voltmeters. Electrostatic Voltmeters. Power Measurement. Dynamometer, Induction, Electrostatic and Hot-wire Wattmeters. Idle or Reactive Component Meters. Phase or Power Factor Meters. Phase Rotation Indicators. Frequency Meters. Fault and Leakage Detectors. Synchronising Devices. Pyrometers. Instrument Transformers. Graphic or Recording Instruments. Electrical Speed Indicators. Oscillograph and other Wave Form Indicators. Live Main or Charge Indicators. Earth-plate Testing Sets. Rail-bond Testing Sets. Cell-testing Voltmeters. Motor-Car Voltmeters and Ammeters. Voltage and Current Relays. Measurement of the Starting Current of a Motor. Paralleling. Compensated and Crest or Peak Voltmeters.
