1886 Dynamo Electric Machinery Motor Magneto Machine

Title of your page goes here. 1886 dynamo electric machinery motor magneto machine +. This is a 527 page, 5 1/4 x 8 7/8, hardcover book titled and subtitled dynamo-electric machinery / a manual for students of electronics. The book was written by sylvanus p. Thompson, d.

Sc, b. A. Principal of, and professor of physics in the city and guilds of london technical college, finsbury late professor of experimental physics in university college, bristol. The book was first publishde in 1884. This is one of the second editions published in 1886 by e. & f. N. Spon.

There is no stated copyright as the reverse of the title page is blank. Please see condition below, but also pictures fo illustrations before deciding whether or not to bid.

As with most second editions, this book includes the preface to both the first and second editions. As stated in the first edition preface enormous as is the progress that has eben made in the last decade in the design and construction of electric machinery of all kinds, it may safely be said that there is no such thing yet as a best dynamo. As with the different kinds of voltaic batteries, some of which are used for telegraphic work, others for electric bells, and others for blasting, so it is also with dynamos. One form is bets for one purpose, and another for another.

One gives steadier currents, another is less liable to heat, a third is more compact, a fourth is cheaper, a fifth is less likely to reverse its currents, a sixth gives a greater volume of current, while a seventh evokes higher electromotive-force. Indeed, in the present transitional state of our knowledge with respect to dynamo-electric machinery, it is safe to assume that for a long time to come, there will be no finality atatined to. The first edition book included lecture material the author gave in 1882 on dynamo-electric machinery and a series of chapters on the mathematical theory of dynamo-electric machines and motors, a section dealing with the graphic method of calculation as applied to the characteristic curves of dynamos and descriptions of all the then recent inventions of importance. The second edition preface details some of the advances in theory and mathematics incorporated into the second edition which includes an increase of 110 pages and ninety-four cuts. Other additions include rewriting of the reactions between the armature and field magnets with the introduction of a section on the heating of pole-pieces the division of class i dynamos into two sub-classes, those in which the windings are united into a closed coil, and those which have an open coil arrangement additional forms of dynamo, including the then latest designs of gramme and siemens a new chapter on machines for electroplating and metallurgy and a new chapter on coupling two or more dynamos in one circuit additional information on electric motors and rewriting of the various sections relating to methods of making dynamos self-regulating.

In the appendices a considerable addition was made to the summary of formulae relating to electromagnets, notably the formula of lamont and a new appendices on the form of field magnets, on the influence of pole-pieces, and on electric governors. Chapter titles and subtitles areintroductory. Physical theory of dynamo-electric machines lcass i class ii class iii relation of speed to power. Organs of dynamo-electric machines ideal simple dynamos armatures armature cores armature coils field magnets pole-pieces field-magnet coils field magnets in practice commutators, collectors, and brushes brushes brush-holders. On the induction of crurents in armatures and the distribution of potentials around the collector. Reactions in the armature and magnetic field obliquity of resultant magnetization lead of brushes diminution of effective magnetization theory of angle of lead causes of sparking reactions due to induction spurious resistance eddy-currents effects of mutual inductance lag due to self-induction remedy for induction troubles heating of cores heating of magnets heating in pole-pieces. Government of dynamos methods of exciting the field magnetism magneto-dynamo separately-excited dynamo series dynamo shunt dynamo / combination methods / combinations to give constant potential series and separate (deprez) series and magneto (perry) series and shunt (brush) series and long shunt / combinations to give constant current shunt and separate (deprez) shunt and magneto (perry) shunt and series / arrangements of compound winding / other methods fo automatic regulation brush's automatic regulation brush's automatic regulator edison's regulator lane-fox's automatic regulator automatic regulation by shifting the brushes section method of regulation electric governing of engine dynamometric governing governing by steam-pressure / note on capacity of dynamos. Types of machines dynamos of class i (a) closed coil armatures ring armatures pacinotti's machine gramme dynamo fuller-gramme dynamo deprez's gramme dynamo recent gramme dynamos maxim's dynamo cabella's armature furgensen's dynamo hochhausen's dynamo burgen-crompton dynamo crompton-kapp dynamo kapp's dynamo patterson and cooper's dynamo mctighe's dynamo mather and hopkinson's dynamo heinrich's dynamo / flat-ring armatures schuckert's dynamo gulcher's dynamo the sachukert-mordey dynamo / drum armatures siemen's dynamo the edison dynamo weston's dynamo the elphinstone-vincent dynamo. Tyeps of machines (continued) dynamos of class i (b) open-coil armatures brush's dynamo thomson-houston dynamo newton's dynamo sir w thomson's mousemill dynamo sir w thomson's wheel dynamo other open-coil dynamos advantages of open-coil dynamos fluctuations of current in open-coil armatures. Tpyes of machines (continued) dynamos of class ii alternate current dynamos. Types of machines (continued) dynamos of class iii forbes' dynamo / unclassed dynamos. Dynamos for electroplating and electro-metallurgy wilde's dynaoms weston's dynamo elmore's dynamo gramme's dynamo siemen's dynamo brush dynamo. Algebraic theory of the dynamo ideal simple dynamo simple armature of many turns (no iron) simple armature with iron core fluctuations of electromotive-force in a one-coil armature fluctuations in a closed-coil armature divided into sections calculation of fluctuations of the electromotive-force in closed-coil armatures measurement of fluctuation. The magneto-dynamo, or magneto-electric machine measurement of the intensity of field of a magneto-dynamo potential at terminals of magneto-dynamo relation between whole electromotive-force and difference fo potentials at the terminals the separately-excited dynamo. Efficiency and economic coefficient of dynamos variation of economic coefficient with current relation fo size to efficiency. The series (or ordinary) dynamo determination of the constants of the series dynamo economic coefficient of series dynamo experimental determination, how to wind field-magnet ciols importance of the saturation coefficient note on the saturation coefficient note on the coefficient g note on the coefficient of magnetic permeability.

The shunt dynamo equations of shunt dynamo, deduced from the law of saturation equation of current of shunt dynamo determination of the constants of the shunt dynamo economic coefficient of shunt dynamo practical rules for economic design. Self-regulating dynamos distribution at constant potential series dynamo + permanent magnets series dynamo + separately-excited coils practical process for determining the winding of the main and separately-exciting coils series dynamo + independent electromotive-force thrown into the main circuit practical process for determining the proper number of turns to be given to the magnet coils series dynamo + shunt exciting coils compound dynamo series and shunt series and long shunt practical effect of the saturation term in compound-wound machines effect of armature reaction distribution with constant current shunt dynamo + separately-exciting coils shunt dynamo + independent electromotive-force thrown into the circuit shunt dynamo + series-exciting coils compound dynamo long shunt + series-regulating coils equations of compound-wound dynamos, deduced from the law of saturation economic coefficient of any compound dynamo. Alternate-current dynamos. On coupling two or more dynamos in one circuit coupling dynamos in parallel coupling of compound dynamos in parallel circuits coupling of alternate-current dynamos.

The geometrical theory of the dynamo curve of magneto-electric machine saturation curve of electro-magnet characteristic curves of dynamos horse-power characteristics external characteristics or terminal potential curves characteristic of magneto machine, and of separately-excited dynamo characteristics of series dynamo relation of characteristic to speed resistance in the characteristic relation of characteristic to winding of armature and field magnets critical current of dynamo applications of characteristics use of characteristics to explain instability of arc light relation of characteristic to size of machine characteristic of shunt dynamo curve of total current in armature total characteristic of shunt dynamo characteristic of shunt dynamo, with permanent magnetism characteristics of self-regulating dynamos distribution of constant potential external characteristics of self-regulating dynamos distribution with constant current application of characteristics to dynamos used in charging accumulators curves of torque curve of variation of economic coefficient curve of horse-power expended on maintaining the field magnetism. The dynmao as a motor. Theory of electric motors the law of maximum atcivity (jacobi) law of maximum efficiency (siemens) electric transmission of energy.

Reaction between armtaure and field magnets in a motor. Special forms of motor.

Reversing gear for motors. Government of motors centrifugal governing dynamometric governing electric governing theory of self-regulating motors supply at constant potential magneto motor with self-regulating coil shunt motor with self-regulating coli / supply with constant current series motor with short-regulating coils series motor with long-shunt-regulating coils. Motor problems solved by graphic methods. Testing dynamos and motors measurement of horsepower indicator methdo brake method dynamometer method balance method. Appendices appendix i measurement of the coefficient of self-induction of a coil / appendix ii measurement of the mutual induction of two coils / appendix iii on the formulae used for electro-magnets lens and jacobi's formula mullers formula von waltenhofen's formula weber's formula frolich's formula sohncke's formula lamont's formula / appendix iv recent advances in the theory of the dynamo frolich's theory rucker's theory esson's observations / appendix v on the alleged magnetic lag / appendix vi movement of neutral point notes by w. M. Mordey experiments with a victoria dynamo when current is being generated character of spark / appendix vii on the form of field magnets / appendix viii on the influence of pole-pieces / appendix ix on the influence of projecting teeth in ring-armatures / appendix x electric governors richardson's governor williams' governor jamieson's governor elihu thomson's dynamometric governor / appendix xi statistics of some recent dynamos crompton dynamo (25-units) edison-hopkinson dynamo (34-unit) kapp's dynamo (17-unit, slow speed) kapp's dynamo ( 4 ½-unit, arc lighting) phoenix dynamo (paterson and cooper) (65-unit) manchester dynamo (mather and hopkinson) (24-unit). Condition the book has a great deal of text information. However, given the condition as detailed here, it is the illustrations taht make this book special and in my estimation, worth bidding. The illustrations shown below aer better in the book. The book si in poor condition. The spine edge is essentially gone with only a small portion showing the publishers name, hanging loosely, attached by one edge. The inner paper binding that covers the spine edge is also torn and partially torn away. The front and back covers are attached by three small bands of cloth that are held in place and bound to the pages by binding string. The cover cloth of the front and back boards with gold front cover print are unfaded. The cover corners are badly bumped and the cloth at the corners has worn away exposnig the cover board. There are a couple spots of worn away cloth on the side edges and the cloth at the bottom edge of the back cover board is considerably worn away exposing the cover board.

The front and back covers are still preservable and useful should you choose to reconstruct the spine edge with paper, cardboard and tape or to have it professionally reconstructed. A paper label glued inside the front cover reveals the book was a former library book of case school of applied science, cleveland ohio (later to become case western reserve university). There is a previous owners name written in fountain epn ink on the front end page and the title page has ink stamps of the words withdrawn and stack along with a catalog number.

There are also three marking pen stripes, most likely covering some other markings thta were on the title page. The inside of the back cover has paper and glue residue left when a library card sleeve was likely pulled off. The front end page and title paeg are loose in the book. The prefaces and table of contents though bound together in page bundles are also loose in the book.

The remainder of the text is string bound and attached. There rae two edge torn pages. There are no missing or creased pages and the text pages are overall in very ogod condition. Though the book is in poor condition, if you have an interest in old dynamo machines or machines in general, you may want to have this book in spite of its condition. If so, please take the time and view the vintage illustrations below. Buyer pyas s/h/i. Payment by paypal. When a flat rate fee is not offered, use the shipping calculator or contact seller directly after the auction with your shipping address, including zip code, & seller will provide totals for both media and priority mail options & payment instructions. With purchase of more than one book, in sellers auctions ending the same night, wait for a combined invoice before paying, as shipping costs will be reduced by combined packaging and may be further reduced yb combined insurance. Click here to see my other auctions.