General Information Series Volume 13 (Paperback)

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. 1894 Excerpt: ...are each 6 feet 7 inches wide. The boilers themselves occupy a space 12 feet 9 inches wide by 112 feet long, and the athwartship passages in the fire room is 12 feet more, making the total length taken up by the boilers 124 feet. Each boiler is 8 feet wide by 11 feet high. The total grate surface is 812 square feet and the heating surface 22,736. The weight of boilers with water is 302.5 tons. The official trials of the Northwest were not of such a character as to demonstrate fully the capacity of the boilers, and the details that have thus far been published have been of little value from an engineering point of view. She is now on her route, but thus far has not succeeded in reaching her designed power. Work on a duplicate vessel has been suspended pending further trials of the boiler of the Northwest. The following table gives such data as are available respecting the boilers of the merchant vessels herein mentioned: 1 Pressure at which test was made; boiler intended to supply steam to engine at 120 pounds. 'Reduced to 181. 3 Two lower rows increased to.397 after 'U years of service. With 7 boilers and 158 square feet of grate. With 16 boilers, or 464 square feet of grate. The Belleville boiler has been in use in the French navy for a number of years, and some of the latest and most powerful ships are to have them. But the most noteworthy installation of them in naval vessels is in the British cruisers Powerful and Terrible, already referred to. The Russians have also used it to some extent, and are now putting it iu a vessel of 14,500 T. IT. P., the Riirik II. The following table gives such particulars of these boilers in naval vessels as are attainable, some being from General Information Series, No. VII, and the most of the others from the Journ...