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Título: Monthly Nautical Magazine, and Quarterly ...
Editorial: Ulan Press
Condición del libro: Good
Descripción General Books. Paperback. Estado de conservación: New. This item is printed on demand. Paperback. 248 pages. Dimensions: 9.7in. x 7.4in. x 0.5in.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1856. Excerpt: . . . For the U. S. Nautical Magazine-and Nml Journal; MARTINS BOILERS. BY ALBAN C. STIMERS. Thk general characteristics of the structure of tbese boilers are described by saying that they have vertical tubes placed over the furnaces, with the water inside them, the products of combustion passing up from tbe back end of the furnace and returning through the tube-box, outside the tubes, to tbe front of the boiler, where they enter the smoke-pipe. The shell is similar in form and proportions to that required by the ordinary Horizontal Tubular, or by the Lamb and Summers Flue Boiler. It has been the practice of late years to arrange these latter athwartships, fronting each other, with a fire-room between, running fore and aft, common to both sides, enabling one fire-room to perform the duties of two, and incidentally keeping all the fire-room, except that under the smoke-pipe, beneath the hatches which supplied it with air. Boilers, with the water inside the tubes, had been used with great success for several years in the Collins line of mail-steamers, in which line Mr. Martin served for two years as chief-engineer. These boilers had the tubes placed back of the furnaces, and on the same level with them. There being one furnace above another, the tubes were necessarily very long; those in the wings being five feet, and those back of the middle furnaces five feet six inches. Mr. Martin wished to combine the advantages of the great evaporative powers of these boilers with those of the fore and aft amidship fire-room, and the boiler he has patented is the result of this combination. For many years, marine boilers had large flues for conveying the heated gases from the furnaces to the smoke-pipe, the flues being placed in tiers above each other, with connections . . . This item ships from La Vergne,TN. Paperback. Nº de ref. de la librería 9781235611711