Electrician and Mechanic, Volume 19Edward Trevert, Arthur Eugene Watson Sampson Publishing Company, 1908 - Amateur radio stations |
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50 cents adjustable aerial alternating current amateur amperes antenna apparatus armature asks battery Boston brass brushes carbon Catalogue cells cents Chicago complete condenser connected construction copper detector diagram diameter direct current drawing dynamo elec electric ELECTRICIAN AND MECHANIC electrolytic detector enameled wire engine F. W. PUTNAM feet give glass heat holes illustrated inch Cutter inches induction coil insulation invention inventor iron Kornit lamp length light machine Magazine magnet Manufacturers Mass ment metal motor obtained ohms operation oscillations patent Patent Attorney photographs piece pipe plate poles post-paid potentiometer practical receiving resistance rheostat SAMPSON PUBLISHING screw Send shown in Fig side silver slots solder spark spark-gap station steel surface telephone Tesla coil tion transformer tube Tuned Circuit tuning coil varnish voltage volts W. C. Getz waves welding winding wire Wireless Telegraphy wood wound
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Page 121 - ... not known or used by others in this country before his invention or discovery thereof, and not patented or described in any printed publication in this or any foreign country before his invention or discovery thereof...
Page 121 - ... for more than two years prior to his application, unless the same is proved to have been abandoned, may, upon payment of the fees required by law, and other due proceedings had, obtain a patent therefor.
Page 492 - YEARS' EXPERIENCE TRADE MARKS • DESIGNS ... COPYRIGHTS &c. Anyone sending a sketch and description may quickly ascertain our opinion free whether an invention is probably patentable.
Page 121 - ... in public use or on sale in this country for more than two years prior to his Connecticut Paper Products, Inc.
Page 91 - THE BOOK OF CAMPING AND WOODCRAFT. A guidebook for those who travel in the wilderness By Horace Kephart.
Page 448 - I rnivbtf at one small profit above actual factory cost. You save |io to $25 middlemen's profits by buying direct of us and have the manufacturer's guarantee behind your bicycle. DO NOT BUY a bicycle or a pair of tires from anyone at any Price until you receive our catalogues and learn our unheard of factory Prices and remarkable special offers to rider agents.
Page 362 - WIRING A HOUSE. By HERBERT PRATT. Shows a house already built; tells just how to start about wiring it; where to begin; what wire to use; how to run it according to Insurance Rules; in fact, just the information you need. Directions apply equally to a shop. Fourth edition . . 25 cents FACTORY MANAGEMENT.
Page 362 - Turning and Boring Tapers. By FRED H. COLVIN. There are two ways to turn tapers; the right way and one other. This treatise has to do with the right way; it tells you how to start the work properly, how to set the lathe, what tools to use and how to use them, and forty and one other little things that you should know.
Page 362 - THREADS AND THREAD CUTTING. By COLVIN and STABEL. This clears up many of the mysteries of thread-cutting, such as double and triple threads. internal threads. catching threads. use of hobs. etc. Contains a lot of useful hints and several tables.
Page 448 - TEN DAYS' FREE TKIAL during which time you may ride the bicycle and put it to any test you wish. If you are then not perfectly satisfied or do not wish to keep the bicycle...