A HORIZONTAL POWER MOTOR.
The horizontal motor does not differ very materially from the vertical one just described.
The field frame is, however, made in two pieces, and the bearings are cast directly on the frame. The details and dimensions are given in Figures 68, 69 and 70.
FIG. 72.—Rear view of the completed Horizontal Motor.
The field winding consists of six layers of No. 18 B. & S. Gauge double cotton-covered wire wound on a spool or bobbin.
The core of the bobbin consists of a piece of five-eighths round steel or iron rod, two and seven-sixteenths inches long. Two circular fibre heads, one-eighth of an inch thick and one and one-half inches in diameter are mounted on the core one-half an inch from one end and fifteen-sixteenths of an inch apart. The ends of the core are set in the holes, "C, C," in the two parts of the field frame and held in position by two set screws threading into the holes "S" and "S."
Either the three-pole or the six-pole armature may be used. The commutator and brushes are identical with those used in the vertical type of motor.
The shaft is three-sixteenths of an inch in diameter and four inches long. The brushes are mounted upon a brush arm which is shown in detail in Figure 63. This is made of three-sixteenths inch sheet brass. The brushes must be insulated from the arm by fibre washers and bushings in the same manner as they were from the bearings on the vertical motor.
FIG. 73.—Side view of the Horizontal Motor.
The holes in the bearings on the field frame are drilled out three-eighths of an inch in diameter and then brushed with a piece of three-eighths inch brass rod five-sixteenths of an inch in diameter having a three-sixteenths inch hole through the center.
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Experimental Wireless Construction
EIGHTY-SIX PAGES NINETY-THREE ILLUSTRATIONS
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Here at last is the book which every young experimenter interested in constructing his own wireless apparatus has been looking for.
A book which tells how to build apparatus which anyone would be proud to own. It is a more advanced book than "Wireless Construction and Installation for Beginners," and describes apparatus which is much more elaborate and sensitive. The instruments have all been the subject of considerable experimental work and study. All the apparatus has been put to practical test and carefully improved by clever experts. By purchasing this book you get the benefit of vast knowledge and experience and are enabled to build far better instruments than by following your own designs and haphazard methods.
Partial Contents
Chapter I.—THE AERIAL. Chapter II.—SPARK COILS. Chapter III.—TRANSMITTING APPARATUS AND ITS CONSTRUCTION. Chapter IV.—THE RECEIVING APPARATUS AND ITS CONSTRUCTION. Chapter V.—ARRANGEMENT AND OPERATION OF THE APPARATUS. COMPLETE DETAILS ARE GIVEN WITH WORKING DRAWINGS.
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The Boy Electrician
Practical Plans for Electrical Toys and Apparatus, with an Explanation
of the Principles of Everyday Electricity.
By ALFRED P. MORGAN.
Author of "Wireless Telegraph Construction for Amateurs" and "Wireless
Telegraphy and Telephony," etc.
With full-page Illustrations and 324 Working Drawings and Diagrams
by the author. 8vo., Cloth, Net Price, $2.25.
This is the age of electricity. The most fascinating of all books for a boy must therefore be one dealing with the mystery of this ancient force and modern wonder, even a mere list of whose services is impossible. The best qualified of experts to instruct boys, Alfred P. Morgan, has in a book far superior to any other of its kind told not only how to make all kinds of motors, telegraphs, telephones, batteries, etc., and to do so economically, but has explained the principles upon which these depend for operation, and how the same thing is done in the every-day world be well presented and so attractive is this really great book that it will be an education for any bright boy to have it, as well as the best kind of a moral safeguard, by leaving no time or thought for evil, and a means of future benefit beyond the power of any one to reckon. Glancing over the pages of this book, one cannot but be impressed by the excellent illustrations, clearness of expression and the large number of subjects that are covered. It is beyond doubt the best book in this line that has ever been written or published. It is a book that will delight every boy who has a leaning towards electrical experiments. The author writes in a clear and chatty style and while he has a thorough technical knowledge of his subject he has succeeded in treating it in a simple manner so that it is readily intelligible to his young readers.
Among the Chapter Headings and Contents are:
Magnets and Magnetism—Static Electricity—Static Electric Machines—Cells and Batteries—Electro-Magnetism and Magnetic Induction—Electrical Units—Electrical Appurtenances—Electrical Measuring Instruments—Bells, Alarms and Annunciators—Electric Telegraphs—Microphones and Telephones—Induction Coils—Transformers—Wireless Telegraphy—Wireless Telephony—Electric Motors—Dynamos—An Electric Railway—Miniature Lighting—Miscellaneous Electrical Apparatus.
READ WHAT HAS BEEN SAID OF IT.
"Even a casual glance through the many pages of the book does not fail to emphasize the fact that Mr. Alfred P. Morgan has indeed succeeded well in giving the juvenile electricians a work that has long been sought."—Popular Electricity.
"We have no hesitation in commending the book to the attention of the juvenile audience for which it is intended."—Boston Post.
"A great book for enterprising boys. Bright boys will highly appreciate it and feel like thanking the wideawake publishers for putting such a reliable and interesting work in the field."—New Haven Journal.
"The book covers the subject of electricity thoroughly in all its phases and is a splendid acquisition to any boy’s library."—Detroit Times.
"In this age of electricity a book like the present one is both fascinating and valuable especially to boys. The book is attractive with its many illustrations and will prove of much educational value for any bright boy."—Zion’s Herald.
"This is an admirably complete and explicit handbook for young boys who fall under the spell of tinkering with electrical apparatus."—Boston Transcript.
"Well presented and attractive this book will be a source of great benefit and delight for any bright boy."—New Orleans Times-Picayune.
Price, $2.25 Postpaid
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Wireless Telegraphy and Telephony Simply Explained
By ALFRED P. MORGAN.
A NEW BOOK by the author of "Wireless Telegraph Construction for Amateurs."
This is undoubtedly one of the most complete and comprehensive treatises on the subject ever published, and a close study of its pages will enable one to master all the details of the wireless transmission of messages. The author has tilled a long-felt want and has succeeded in furnishing a lucid, comprehensible explanation in simple language of the theory and practice of wireless telegraphy and telephony. The book treats the subject from an entirely new standpoint. Several very novel and original ideas have been carried out in its making. It is well illustrated by over one hundred and fifty interesting photographs and drawings.. All diagrams have been made’ in perspective showing the instruments as they actually appear in practice. The drawings are carefully keyed and labeled. Many of the photographs are accompanied by phantom drawings which reveal the name and purpose of each part.
It is a book which the wireless experimenter cannot afford to be without. It will prove even more valuable to the layman.
Among the contents are: Introductory. Wireless Transmission and Reception. The Ether. Electrical Oscillations. Electro magnetic Waves. The Means for Radiating and Intercepting Electric Waves. Aerial Systems. Earth Connection. The Transmitting Apparatus. Current Supply. Spark Coils and Transformers. Condensers. Helixes. Spark Gaps. Anchor Gaps. Aerial Switches, Etc. The Receiving Apparatus. Detectors, Etc. Tuning Coils and Loose Couplers. Variable Condensers. Tuning and Coupling. Directive Wave Telegraphy. The Dignity of Wireless. Its Applications and Service. Wireless in the Army and Navy. Wireless on an Aeroplane. How a Message is Sent and Received. The Wireless Telephone. The Ear. How We Hear. Sound and Sound Waves. The Vocal Cords. The Structure of Speech. The Telephone Transmitter and Receiver. The Photophone. The Thermophone. The Selenium Cell.
Handsomely Bound in Cloth with Embossed Cover. (Postpaid, $1.00)
Build Your Own Wireless Instruments
Complete Up-to-the-Minute Authentic Practical
WIRELESS TELEGRAPH CONSTRUCTION FOR AMATEURS
By ALFRED POWELL MORGAN
3d EDITION
220 Pages 163 Illustrations
Price, $1.50, Postpaid
Handsomely Bound in Silk Cloth
Thoroughly up to date and unusually complete. Given in minute detail, full directions for constructing wireless apparatus and various outfits capable of receiving from 100 to 1,500 miles and transmitting 3 to 100 miles. Also clearly explains the purpose and action of each instrument.
Directions for Operating and Adjusting, etc.
A SPLENDID TREATISE OF WIRELESS ALONG CONSTRUCTIVE LINES
Price, $1.50, Postpaid
The value of this book has been greatly increased by the addition of much new subject matter and many illustrations of recent interest.
The new text explains fully how to build the most recent forms of Quenched Gaps, Rotary Gaps, Dough-Nut Tuners, Kick-back Preventers, Audion Detectors and numerous other instruments, accompanied by dimensioned working drawings Several very interesting and instructive photographs have been included.
I.—Introduction. II. The Apparatus. III.—Aerials and Earth Connections. IV.—Induction Coils. V.—Interrupters. VI.—Transformers. VII.—Oscillation Condensers and Leyden Jars. VIII.—Spark Gaps or Oscillators. IX.—Transmitting Helixes X.—Keys. XI.—Aerial Switches and Anchor Gaps. XII.—Hot Wire Ammeter. XIII.—Oscillation Detectors. XIV.—Tuning Coils and Tuning Transformers. XV.—Receiving Condensers. XVI.—Telephone Receivers and Headbands. XVII.—Operation. XVIII.—The Amateur and the Wireless Law. How to Secure a License. Oscillation Helix. Quenched Spark Gap. Rotary Gaps. Kick-Back. The Variometer. New Crystal Detectors. The Audion.—Appendix.
ENDORSED BY WIRELESS CLUBS THROUGHOUT THE COUNTRY AS BEING THE MOST PRACTICAL BOOK PUBLISHED ON WIRELESS.
IF YOU ARE INTERESTED IN WIRELESS YOU NEED THIS BOOK
LESSONS IN WIRELESS TELEGRAPHY
(WRITTEN SO THAT YOU CAN UNDERSTAND THEM)
Our new book contains a systematic elementary course in the principles of Wireless Telegraphy and the electrical laws upon which it depends. It contains more reliable and practical information than any other book of its kind.
IF YOU OWN A WIRELESS OUTFIT it will give you a thorough grounding in the principles and care of the efficiency of your apparatus.
IF YOU INTEND PURCHASING OR OPERATING WIRELESS TELEGRAPH APPARATUS you could not desire a more complete or concise explanation of matters it is essential to understand.
IF YOU ARE A LAYMAN the book will prove valuable and interesting. It is something that you can well afford to read for it will give you a clear conception of one of the greatest wonders of the age.
Price, 30 Cents, Postpaid.
The book is divided into thirty lessons, each lesson dealing with a separate subject and following in a logical order so that repetition and possibility of confusion are completely avoided. It is profusely illustrated with perspective drawings and diagrams, each being carefully keyed so that parts may be readily discerned.
It not alone describes the actual workings and construction of the instruments that go to make up a wireless station in sufficient detail to prove of great value to the experienced student but treats the subject in such a manner that even the beginner will have no trouble to clearly grasp the matter.
Among the lists of contents may be mentioned a careful discussion and explanation of such subjects as the "why and the wherefore" of Magnetism, Magnetic Induction, Primary Cells, Storage Batteries, the Dynamo, the Alternator, the Motor Generator, the Induction Coil, the Transformer, the Condenser, Volts, Amperes, Watts, Coulombs, Ohm’s Law, Electric Waves, the Ether, Oscillations, the Aerial, Spark Gaps, Quenched Gaps, Rotary Gaps, Helixes, Coupling, Tuning, Detectors, Tuning Coils, Loose Couplers, Variometers, Condensers, Hot Wire Ammeters, Circuits and Diagrams, etc., etc., etc.
Each subject is discussed in detail and in all its branches. For instance, the lesson dealing with aerials describes vertical aerials, pyramid aerials, flat top aerials, umbrella aerials, loop aerials, etc., and peculiarities or advantages. The lesson on detectors deals with Electrolytic, Perikon, Silicon, Pyron, Carborundum, Magnetic and Audion Detectors, etc. The lesson on the theory and arrangement of circuits will be found invaluable.
THIS IS THE BOOK THAT YOU HAVE BEEN LOOKING FOR.
Home Made Electrical Apparatus
Three of the most popular books ever published, filled with just the sort of information you have been looking for. Each volume is printed on heavy paper and contains 72 pages and over 60 illustrations and working drawings for making every sort of electrical apparatus, all of which has actually been built by the author.
Written so that you can completely understand them.
VOLUME I, No. 7—80 Pages—66 Illustrations
Chapter I—STATIC ELECTRICAL APPARATUS—Static Electricity. How to Build a Wimshurst Machine. Experiments with Static Electrical Apparatus.
Chapter II—CELLS AND BATTERIES.
Chapter III—HOW TO REDUCE THE 110 VOLT D. C. OR A. C. TO A LOWER VOLTAGE FOR EXPERIMENTAL PURPOSES.
Chapter IV—HOW AN ALTERNATING CURRENT MAY BE CHANGED INTO DIRECT CURRENT BY MEANS OF AN ELECTROLYTIC RECTIFIER.
Chapter V—HOW TO BUILD A STEP-DOWN TRANSFORMER FOR REDUCING THE 110 VOLT A. C. FOR EXPERIMENTAL PURPOSES.
VOLUME II, No. 8—72 Pages—55 Illustrations
Chapter VI—ELECTRICAL MEASURING INSTRUMENTS. Galvanometers, Ammeters, Voltmeters, etc.
Chapter VII—CURRENT CONTROL DEVICES. How to Make a Pole Changing Switch or Current Reverser. How to Reverse Small Motors. Battery Rheostats.
Chapter VIII—HOW TO MAKE A TELEGRAPH KEY AND SOUNDER. How to Install a Telegraph Line and Learn to Operate. Learning the Morse Code.
Chapter IX—HOW TO MAKE AND INSTALL A TELEPHONE.
Chapter X—MEDICAL COILS AND SHOCKING COILS.
Chapter XI—THE CONSTRUCTION OF SPARK COILS. A one-quarter inch Coil, a one-half inch Coil, a one inch Coil. Experiments with Spark Coils.
VOLUME III, No. 9—80 Pages—73 Illustrations
Chapter XII—HOW TO MAKE A DYNAMO-MOTOR.
Chapter XIII—HOW TO MAKE A TOY BATTERY MOTOR.
Chapter XIV—HOW TO BUILD AN ELECTRIC ENGINE.
Chapter XV—MINIATURE BATTERY LAMP LIGHTING.
Chapter XVI—COHERER OUTFITS FOR WIRELESS TELEGRAPHY.
Chapter XVII—HOW TO BUILD A TESLA HIGH FREQUENCY COIL. Experiments with High Frequency Currents.
Chapter XVIII—AN EXPERIMENTAL WIRELESS TELEPHONE.
Chapter XIX—MISCELLANEOUS APPARATUS. Electrolysis of Water. Electro-Plating. Electricity from Heat. A Handy Light. An Experimental Arc Lamp. A Magnetic Diver. Magnetic Fish. A Magnetic Clown. An Electric Breeze. A Static Motor.
Price Postpaid, 30 cents per volume
All three volumes can be supplied bound together with handsome cloth cover for $1.25 postpaid.
Vacuum Tubes in Wireless Communication
By ELMER E. BUCHER
The only Text Book on the market devoted solely to the various applications of the Oscillation Valve.
An elementary text book for students, operators, experimenters and engineers. Naval wireless men find this book especially helpful. Tells in understandable language the fundamental operating principle of the vacuum tube. Shows over 100 different circuits for the practical use of the Vacuum Tube as a Detector, Radio or Audio Frequency Amplifier, Regenerative Receiver, Beat Receiver, and Generator of Radio Frequency Currents.
More than 100 diagrams reveal, step by step, in simple and direct form, the uses of the vacuum tube.
Cloth. Size 6 x 9 inches. 202 pages. 159 diagrams and illustrations. Price, $1.75. Postage, 10 cents.
Practical Wireless Telegraphy
By ELMER E. BUCHER
More than 65,000 copies of this book have been sold to date. It is used in practically every school, college, library and training camp in this country.
Practical Wireless Telegraphy is the recognized standard wireless text book. It furnishes much information of utmost value in regard to the very latest styles of wireless sets now in use.
It is the first wireless text book to treat each topic separately and completely, furnishing a progressive study from first principles to expert practice. Starting with elementary data, it progresses, chapter by chapter, over the entire field of wireless—fundamentals, construction and practical operation.
Size 6 x 9 inches. 352 pages. 340 illustrations. Handsomely bound in full cloth. Price, $1.75. Postage, 10 cents.
Radio Telephony
By ALFRED N. GOLDSMITH, Ph D.
It is the only book treating the subject of Radio Telephony in all its aspects.
This complete text on radio telephony is intended for radio engineers, operators and experimenters, also radio electricians in the Navy, men in the Signal Corps and especially men in the Aviation Service who handle radio equipment. Students and others who desire to be clearly informed concerning this newest and most interesting branch of electric communication need this book.
It is written in clear style, and pre-supposes very little knowledge of radio. Fully illustrated with wiring diagrams and previously unpublished photographs of "wireless telephone" apparatus.
There are over 400 separate topics listed in a carefully prepared index.
Size 6 x 9 inches. 256 pages. 226 illustrations. Full cloth, stamped in gold. Price, $2.00. Postage, 10 cents.
The Operation of Wireless Telegraph Apparatus
Do your Wireless friends come to you for advice on constructing and operating their apparatus or do you go to them for information?
Here is a chance for YOU to become the authority.
This book is a necessity to every Progressive Experimenter.
It shows how to obtain the very highest efficiency from any station, and how to comply with the law. How to tune, adjust your detector, spark gap, phones, etc.
Price, 30 Cents, Postpaid.
This book was written for the wireless experimenter who has passed the amateur stage, but explains how the beginner also can obtain the very best results from his station. It contains much useful information to this end and many "kinks".
IT SHOWS HOW to receive or send on long or short wave lengths with highest efficiency, to tune for longest distance reception of messages, to use the buzzer test, how to test and connect condensers, receivers, etc., how to use receiving transformers, variometers, etc., all with highest efficiency in view.
IT ALSO DESCRIBES the construction and use of a simple, inexpensive wave meter to tune the station to any desired wave length, and tells how to obtain a sharp wave and a pure wave.
Model Flying Machines
HOW TO BUILD AND FLY THEM
Will prove interesting and valuable.
Have you ever built and flown a Model Racer?
If not, you have missed something.
Price, 25 Cents, Postpaid.
Model Aeroplaning is one of the most fascinating and instructive of sports.
Thousands of young men and boys have formed Model Aero Clubs and organized Flying Contests throughout the country.
"MODEL FLYING MACHINES" of the Arts and Sciences series is the only book giving reliable data and instructions for the construction of practical Model Aeroplanes.
IF YOU ARE A BEGINNER, this is the book that you ought to have. It will start you right. It tells how to build seven different types of machines, starting with the simplest Monoplane and finishing with several Long Distance Racing Models.
IF YOU ARE INTERESTED IN MODEL AEROPLANING, this book will prove the one you have been looking for. Gives valuable "Kinks". Tells how to carve propellers, make winders, adjust and fly machines, etc. Fully illustrated with large size, detailed working drawings, showing the exact size of each part. Twelve full-page plates.
Printed on first-class paper. Heavy cover in three colors.
Sent postpaid by return mail upon receipt of 25 cents.
EVERY MODEL AVIATOR OUGHT TO HAVE A COPY
*** END OF THIS PROJECT GUTENBERG EBOOK HOME-MADE TOY MOTORS ***