I. H. C. Gas or Gasoline Engines A number of meritorious features characterize I. H. C. gasoline engines, and we've put them in a booklet, which we would be glad to send you if you ask for it. I. H. C. gasoline engines are not only safe, but also inexpensive to operate. A bright ten year old boy can handle an I. H. C. engine, because the parts are so With a given quantity of gasoline, I. H. C. power producers wherever an engine of the same rated capacity is required. Made in the following styles and sizes: Horizontal, Stationary and Portable-6, 8, 10, 12 and 15 H. P. Vertical-2, 3 and 5 H. P. INTERNATIONAL HARVESTER COMPANY OF AMERICA 7 R Monroe Street (Incorporated) Chicago, U. S. A. SLACK AND SCREENINGS are as good as high-priced coal if you use the. MARTIN ANTI-FRICTION ROCKING GRATE DESMOND DIAMO-CARBO EMERY WHEEL DRESSER. Only real substitute for Black Diamond. Hardest abrasive known..... Sent on 15 days trial. Takes the place of the expensive black diamond. A tool roo necessity, for the purpose of truing and shaping emery wheels. Sit down and order one NOW, sending us the price as above, try it 15 days, and if you are not pleased with it, send it back and we will refund the money without question and AT ONCE. THE DESMOND-STEPHAN MFG. CO., URBANA, OHIO DON'T BUY GASOLINE ENGINES Until you investigate 'THE MASTER WORKMAN" a two-cylinder gasoline engine superior to all one-cylinder engines; revolutionizing gas power. Costs Less to Buy and Less to Run. Quickly, easily started. No vibration. Can be mounted on any wagon at small cost -portable, stationary or traction. Mention this paper. SEND FOR CATALOGUE. This is our Fifty-second Year. THE TEMPLE PUMP Co., Mfrs., Meagher and 15th Sts., Chicago Mention Technical World Magazine :::: 1906 :: LUNKENHEIMER CATALOG FREE! DESCRIBES AND ILLUSTRATES A MOST COMPLETE ENGINEERS CANNOT AFFORD TO BE WITHOUT A COPY FILL IN, CLIP OFF THE CORNER OF THIS PAGE, SEND TO JUS AND WE WILL THE LUNKENHEIMER COMPANY LARGEST MANUFACTURERS OF HIGH-GRADE ENGINEERING SPECIALTIES IN THE WORLD. :: :: FILL IN CLIP OFF. AND SEND 10 US Please send me a copy of your 1906 Catalog. THE LUNKENHEIMER CO., P.O. Box 876 Cincinnati, Ohio, U.S.A. Name Occupation Employed by Street Address Mention Technical World Magazine Town State T. W. making a book of 300 pages, 8 x 10 inches in size, handsomely bound in red art buckram For the purpose of advertising our courses we will, until March 1st, send one copy for one dollar to every reader of The Technical World Magazine sending us the names of three persons whom he knows to be interested in our Electrical courses. Money refunded if not satisfactory. The book is easily worth $2.00, and we make this liberal offer because we know that an inspection of some of our bound text-books will be convincing evidence of the practical value of our instruction. PARTIAL LIST OF CONTENTS: STORAGE BATTERIES, by Prof. F. B. Crocker, Columbia University (prepared especially for home study); Types: General Principles: Chemical Action; Data Sheets: Edison Storage Battery: Management; Electrolyte: Cadmium Test; Charging; Efficiency: Troubles and Remedies; Testing; Portable Batteries for Automobiles and Boats; House Wiring, etc. -ELECTRIC WIRING, by H. C. Cushing, Jr,, (author of "Standard Wiring"); Dynamo Installation: The Switch Board; Lightning Arresters: Motor Installation; Tables, Transformers, Three-Wire System; Poles and Pole Setting: Inside Wiring, Arc Light Wiring; Conduit Work; Fixture Wiring; Cut-outs; Switches; Distribution of Light; Arc and Incandescent Systems; Fuses; Inspection; etc. ELECTRIC BELL WIRING, by H. C. Trow, S. B. Methods of Wiring, Joints, Batteries, Dry Batteries, Bells, Circuits, Annunciators, Burglar Alarms, Fire Alarms, etc. ELECTRIC CURRENT, by L. K. Sager, S. B. Volt; Ampere: Ohm: Resistance; Conductivity; Tables; Circuits; Grouping of Cells; Quantity: Energy: Power; Coulomb; Joule; Watt, etc. ELEMENTS OF ELECTRICITY, by L. K. Sager, S. American School of Correspondence COUPON-Cut out and mail today Chicago, Ill. Inclosed please find $1.00, for which please send me (express prepaid) one copy PRACTICAL LESSONS IN ELECTRICITY. Money to be refunded if not satisfactory. The following are names of three friends interested in your Electrical courses: Name Address Name Address Name Address (SIGNED) Name...... Address .... Mention Technical World Magazine T. W. 2-06 Practical Electricity THE BOOK OF MERIT Its arrangements; its questions and answers; its dictionary; makes the study of the subject a pleasure There are XX chapters or subjects carrying you from the fundamental principles of electricity on through the various branches to a point where the careful student comprehends the complete designing, care and operation of a dynamo or a motor. Each subjectis carefully written and to the point. After a student studies a subject, he is questioned on that subject in such a manner as to bring clearly to his mind the points he needs to know regarding same. A DICTIONARY in back of book will enable him to learn the meaning of any electrical word, term or phrase used in this book as well as hundreds of others in common use. All required tables necessary in the study are in it. Price $2.00 per copy This book will help you in the study of electricity as no other book ever has. The offer we make of refunding money if book is not satisfactory upon examination is AN UNUSUAL ONE in connection with the sale of a book. But we have no fear of its return. Your decision will be what thousands of others' have been. Money would not buy it ifit could not be duplicated. We could print testimonials by the hundreds. It is the best to order and be your own judge of its merits. We are now selling the fourth edition. No other electrical book has ever had so great a circulation. Read What Our Engineering Department AGENTS We Manufacture Dynamos and Motors like cut from 8 to 150 lights and to 10 H. P. Write for our catalogue and proposition in reference to how to sell, and commission we pay. Our proposition is an ideal one for any man who is connected with a power plant or central station; the people to whom you furnish We will design and furnish Winding Specifications for anything electrical. If you desire to manufacture a line of Dynamos or Motors, we will sell you working Blue Prints and Winding Specifications for One making machines like cut. frame does for 8 Machines, 2 Dynamos and 6 Motors, this we call a set. We will sell you Blue Prints power will, in most cases, favor Armature Works Armature Works and Winding Specifications for a set for $50.00, thus enabling you to manufacture your own machines. Mention Technical World Magazine |