COMPRESSED AIR LARGE 8vo. IN ALL ITS APPLICATIONS pressed Air, comprising its physical and operative properties from a vacuum to its liquid form. Its thermodynamics, compression, transmission, expansion, and its uses for power purposes in mining and engineering work; pneumatic motors, shop tools, air blasts for cleaning and painting. The Sand Blast, air lifts, pumping of water, acids, and oils; aeration and purification of water supply, are all treated, as well as railway propulsion, pneumatic tnbe transmission, refrigeration. The Air Brake, and numerous appliances in which compressed air is a most convenient and economical vehicle for work-with air tables of compression, expansion and physical properties. Copies of this book will be sent prepaid to any address on receipt of price. Address RICHARDS & CO., COMPLETE practical treatise of 544 pages and 600 illustrations on American Tool Making and System of Interchangeable Manufacturing as carried on to-day in the United States. Describing and illustrating all of the different types and classes of small Tools, Fixtures, Devices, and Special Appliances, which are used in all machine manufacturing and metal-working establishments, where economy, capacity and interchangeability in the production of machined metal parts are imperative. All the tools, fixtures and devices illustrated in this book have been or are used, for the actual production of work, such as parts of Drill Presses, Lathes. Patented Machinery, Typewriters, Electrical Apparatus, Mechanical Appliances. Brass Goods, Composition Parts, Mould Products, Sheet Metal Articles, Drop Forging, Jewelry, Watches, Metals, Coins, etc. The treatment of each tool described and illustrated is such as to enable any practical man to Design, Construct and Use Special Tools, Dies, and Fixtures, for the Rapid and Accurate Production of Metal Parts, Interchangeably. Every Machinist, Tool Maker, Designer, Diemaker, Superintendent, Manager and Shop Proprietor should have this book, as it shows the 20th Century Manufacturing Methods and Assists in reducing the Expense and increasing the Output and the Income. A SPECIAL CIRCULAR SENT ON REQUEST. Address RICHARDS & CO., 309 Broadway, New York. MECHANICAL 1,800 MECHANICAL MOVEMENTS for $3.00 MOVEMENTS DEVICES APPLIANCES HISCOX. T JUST ISSUED 10th REVISED EDITION OF Mechanical Movements. By GARDNER D. HISCOX, M. E. Author of " Gas, Gasoline and Oil Engines, etc., etc." Contains over 1,800 specially made illustrations, with descriptive text and over 400 pages. HIS BOOK is a Dictionary of Mechanical Movements, Powers, Devices and Appliances, embracing an illustrated description of the greatest variety of Mechanical Movements and Devices in any language, covering nearly the whole range of the practical and inventive field. For the use of Machinists, Mechanics, Inventors, Engineers, Draughtsmen, Students, and all others interested in any way in the devising and operation of mechanical works of any kind. AMONG THE SUBJECTS INCLUDED ARE: Mechanical Powers-Transmission of Power-Measurement of Power-Steam Power, Boilers and Appliances-Steam Appliances-Motive Power, Gas and Gasoline Engines— Hydraulic Power and Devices-Air Power Appliances-Electric Power and Construction-Navigation and Roads-Gearing-Motion and Devices Controlling Motion-Horological, Mining, Mill and Factory Appliances-Construction and Devices-Draughting Devices-Miscellaneous Devices. What one of our customers said of this book: "Once owning this book I would not be deprived of it for ten times its cost.' Over 400 pages, tenth edition, price, $3.00. ADDRESS RICHARDS & CO., 309 Broadway, New York, V. S. A. SPECIAL CIRCULAR OF THIS BOOK SENT FREE ON REQUEST. RICHARDS & CO., Patent Agents and Solicitors, 305-309 BROADWAY, NEW YORK, N. Y. FIRM ESTABLISHED 1879. PATENTS, TRADE-MARKS, DESIGNS AND We transact business exclusively for Agencies and correspondents in every country in the world granting patent and trade-mark protection. Offices fully equipped to give the highest class of expert work, with prompt and reliable service. PATENT LITIGATION. HOW YOU CAN MAKE YOUR LEARN SCIENTIFIC BUSINESS LETTER WRITING. A most important factor of business life taught by the greatest correspondence school in existence. Your instruction will be the practical method by which a concern now doing a business of over a quarter of a million dollars annually was built up in seven years' time from an investment of only $1.70. Every business concern in the world employs the services of one or more correspondents and pays them a salary ranging from $15 to $50 a week. We can thoroughly equip a man or woman to hold such a position because we have a scientific system which has built a business to gigantic proportions, and afforded the man who possessed this knowledge the princely salary of $15,000 a year. We offer you tried, proved, sound, sensible principles underlying scientific letter writing, as employed by men of world-wide reputation for business sagacity. We invite you to write for further particulars of this course of study. Address: PAGE-DAVIS COMPANY. 90 Wabash Avenue, Chicago. Please mention the PATENT AND TRADE MARK REVIEW when writing advertisers. (Q 8690) Review. Copyright 1905, by RICHARDS & Co. All rights reserved. Australian Commonwealth-Patents-Statutory Rules, 1904-Concludea..... Austria-Patents-Decision, Joinder of Invention.. Books and Pamphlets Received. 1222 1207 1219 China-Trade Marks-Postponement: 1199 Germany" Process Patents for Apparatus," by Heimann.. I 209 Rhodesia, Southern-Patcnts-Government Notice No. 239 of 1904-Con cluded..... United States Practice... United States-Trade Marks-Treasury Department Circular.. PUBLISHED BY 309 Broadway, 1219 1211 1199 THE Patent and Trade Mark Review A monthly journal for the publication of new laws and other related subject-matter. Volume 1, October, 1902, to September, 1903; Vol- ADVERTISING RATES. Personal Advertisements, 2 Cents per word. We do not solicit the advertisements of Patent Agents or Solicitors. WHILE THE UTMOST CARE IS TAKEN TO INSURE ACCURACY IN THE MATTER THAT APPEARS IN THE REVIEW, NO RESPONSIBILITY IS ASSUMED ON ACCOUNT OF ERRORS OR INACCURACIES WHICH MAY OCCUR THEREIN. Netherlands. Patents. We are advised that a Bill was introduced into Parliament for a Patent Law on the 5th day of May. It is not probable, however, that a Law will come into force before 1906. China. Trade Marks. The China Times, of April 22d, 1905, prints the following: "THE TRADE MARK REGISTRATION QUESTION. "The postponement for six months of the operation of the Trade Mark Registration scheme will soon expire. The Wei wu-pu at Peking consequently notified certain foreign countries on the 15th inst., requesting them to resume consideration of the question. The representatives of these countries, however, are unable to do so, and apparently wish to postpone the matter for some time further." 1905. United States. DEPARTMENT CIRCULAR No. 40. Division of Customs. Trade Marks. TREASURY DEPARTMENT, To Collectors of Customs and others concerned: The attention of officers of the customs and others is invited to the following provisions of section 27 of the act approved February 20, 1905, effective April 1, 1905: SECTION 27. That no article of imported merchandise which shall copy or simulate the name of any domestic manufacture, or manufacturer or trader, or of any manufacturer or trader located in any foreign country which, by treaty, convention, or law affords similar privileges to citizens of the United States, or which shall copy or simulate a trade-mark registered in accordance with the provisions of this Act, or shall bear a name or mark calculated to induce the public to believe that the article is manufactured in the United States, or that it is manufactured in any foreign country or locality other than the country or locality in which it is in fact manufactured, shall be admitted to entry at any custom-house of the United States; and, in order to aid the officers of the customs in enforcing this prohibition, any domestic manufacturer or trader, and any foreign manufacturer or trader, who is entitled under the provisions of a treaty, convention, declaration, or agreement between the United States and any foreign country to the advantages afforded by law to citizens of the United States in respect to trade-marks and commercial names, may require his name and residence, and the name of the locality in which his goods are manufactured, and a copy of the certificate of registration of his |