How to make a dynamo: a practical treatise for amateurs

University Of California Libraries, Alfred Crofts

Informations

• Publié par: vuer
• Nombre de lectures: 30
• Langue: English
• Poids de l'ouvrage: 16 Mo

Extrait

HOW TO MAKE A DYNAMO IRLF CROFTSGIFT OF Mr*. f-HOW TO MAKE A DYNAMO.HOW TO MAKE A featiss fnrrarttralJl f AND DETAILED INSTRUCTIONSNUMEROUS ILLUSTRATIONSCONTAINING A SMALLFOR CONSTRUCTING DYNAMO, THE ELECTRIC LIGHT.TO PRODUCE BY ALFKED CKOFTS. REVISED AND ENLARGED.THIRD EDITION. :Bonbon CROSBY LOCKWOOD & SON, HALL E.G.STATIONERS' LUDGATE HILL,7, COURT, 1890. [All Rights Reserved.]C7O-n^cz-eLt.PREFACE TO THE THIRD EDITION. THE first and second editions of this littlebook being so the sale of overof;rapidly disposed 2,000 copies is sufficient evidence that a want existed for such an little not amateurwork,inexpensive only by electricians to whom the treatise was originally but and mechanicsaddressed, by professed engineers at home and who have its aid made theirabroad, by own to their ordynamos light dwellings workshops. The of the former editions includedpatrons amateurs of rank as well as hard mechanics,working while several letters of havedelightexpressive reached the for which he takes theAuthor, present of his and for thethanks,opportunity returning accorded to the two editions.support past worked outThat the instructions were carefully an extract frombeforeby experiment being printed, on 11 willan letterEngineer's appearing page confirm. 464551YK PREFACE TO THE THIRD EDITION. run of the first and second editionstheDuring of for these littletonsmany castings working have been turned out at the Phoenixdynamos in Dover under the Writer's supervision,Foundry and have been sent to NewAmerica, Australia, &c.Switzerland,Zealand, It is most that the irondesirable, however, beshould otherwise the ofsoft,employed efficiency would bethe affected to obtaingenerator ; therefore, it is to secure firstresults,satisfactory imperative class castings. In the will be found some usefulAppendix additional of a withparticulars Dynamo wrought iron field the shoulders of which can becores, easily inturned a small and aup lathe, by employing asarmature and commutator describedgramme ring will seven to easily light twenty-candle-power lamps their full brilliancy. ""With these remarks How TO MAKE A DYNAMO enters its THIRD EDITION.upon CLARENDON7, PLACE, DOVER, 1890.March,