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air-gap Alternating Currents Ammonia ampere-turns amperes amperes per square armature core bobbin Boilers brushes calculated cast steel cent Chapter circular mils coefficient coil commutator construction copper Copper Loss core-body cubic inch current-density curve cycles per second density diagrams doubly re-entrant dynamo dynamo design eddy-current Electric equal excitation feet per minute field-magnets flux flux-density formula full-load given gives heat Hence hysteresis hysteretic Illustrated inch wide insulation iron kilowatts Kolben lap-winding layers lines per square load machine magnetic mean length mica millimetres mils motors multiplying no-load number of circuits number of conductors number of poles number of turns Oerlikon ohms output pair of poles parallel peripheral speed Permeance pitch Plate pole-cores pole-face pole-pieces pole-pitch resistance revolutions per minute rheostat ring round segments series-parallel shunt singly re-entrant slot space-factor square inch Steam teeth thickness tooth total number Valve voltage volts watts watts wasted wave-winding width winding yoke
Page 279 - Calculus,' etc. Second edition, crown 8vo, cloth, 2s. 6d. CONTENTS : Symbols and the Signs of Operation — The Equation and the Unknown Quantity — Positive and Negative Quantities — Multiplication — Involution — Exponents — Negative Exponents — Roots, and the Use of Exponents as Logarithms — Logarithms — Tables of Logarithms and Proportionate Parts — Transformation of System of Logarithms — Common Uses of Common Logarithms...
Page 295 - El-ECTRIC GAS LIGHTING HOW TO INSTALL ELECTRIC GAS IGNITING APPARATUS INCLUDING THE JUMP SPARK AND MULTIPLE SYSTEMS FOR USE IN HOUSES, CHURCHES, THEATRES, HALLS, SCHOOLS, STORES, OR ANY LARGE BUILDING. Also the care and selection of suitable Batteries, Wiring and Repairs. By HS NORRIE. (Author of Induction Coils and Coil Making.) Contents of Chapters : 1.
Page 265 - CATALOGUE, which will be sent by mail, postage prepaid, to any address in the United States, on receipt of Ten cents.
Page 265 - Hanchett, George T.— Modern Electric Railway Motors The various commercial types of electric railway motors are described in full detail, including mounting and control. 200 pages, 157 illustrations 2 oo Handy Tables for Electrical and Steam Engineers 18 tables found to be useful in arriving at approximate results without extensive calculation. Pamphlet, 8vo, 16 pages 50 Hering, Carl— Electrochemical Equivalents i oo The Universal Wiring Computer.
Page 265 - A DICTIONARY OF Electrical Words, Terms, and Phrases. By EDWIN J. HOUSTON, Ph.D. (Princeton). AUTHOR OF "Advanced Primers of Electricity"; "Electricity One Hundred Years Ago and To-day,
Page 285 - ... upon the design and proportion of the various parts of engines and boilers for strength ; as. in the opinion of the writer, that should come after a general knowledge of the engine and boiler has been obtained. In the derivation of some of the formalse in thermodynamics.
Page 273 - FROM PREFACE. The numerous requests received by the Publishers for the late Mr. FW Hartley-s "Gas Analyst-s Manual and "Gas Measurement" form the justification of the present work, which embodies practically the entire contents of those two volumes. It has been found, however, that their scope was too narrow to comply with modern requirements in various directions, although ample at the time they were written, and so...
Page 9 - STKEL. depends not only upon the nature of the material but also upon the degree to which the magnetization is carried in each cycle — in fact upon the amplitude of the cycle.
Page 147 - Binding wires must be strong enough to resist the centrifugal forces, and yet at the same time must occupy very little radial depth that they may not interfere with the clearance between the armature and the pole-faces. The almost invariable practice is to employ a tinned wire, of hard-drawn brass, phosphor-bronze, or steel, which, after winding, can be sweated together with solder into a continuous band. Mr. Wall, of Sheffield, manufactures a special " plated steel " wire for binding, in sizes of...
Page 265 - Second edition, 144 illus. 330 pp- 8vo. (New York) ... ... ... net 10 6 Theory and Calculation of Alternating Current Phenomena. By CHARLES PROTEUS STEINMETZ. Third edition, 210 illus. 525 pp. demy 8vo. (New York) ... ... ... ... ... ... net 17 o Telegraphic Connections. By C. THOM and WH JONES. 20 plates, oblong 8vo (New York) 7 6 Rontgen Rays and Phenomena of the Anode and Cathode.