Publisher's Synopsis
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1910 edition. Excerpt: ... marine uses has been made by the Carnegie Institution of Washington in the equipment of the non-magnetic ship "Carnegie." This vessel of 600 tons has no wrought iron or steel in her construction, and less than a pound of cast iron per ton of displacement. This absence of magnetic iron was necessary because the ship was built for magnetic survey purposes, and the magnetic needle is affected by the presence of iron in its neighborhood. When it came to the selection and design of a power apparatus for this ship the builders were confronted with a problem. Producer gas and gas engine was finally chosen as the system best adapted and as also the most flexible as regards fuel supply. After a careful investigation it was seen that producer gas was reliable and would occupy the least space in the ship, and that the plant could be constructed without cast iron. The suction type of producer was chosen as the most simple in build and operation and needing the fewest auxiliaries. This producer was furnished by the Marine Producer Gas Power Company of New York, and is built of a copper shell, lined with firebrick, with grates of non-magnetic manganese steel. The producer proper is 6 feet high and 5 feet 6 inches in diameter. This producer supplies gas to a four-cylinder Craig gas engine of 150 horsepower. The vessel will carry 25 tons of anthracite coal, and has a cruising radius of 2,000 miles from a coal base. This will be seen to be a remarkable equip Fig. 18. Cross Section through Hull o) the "Carnegie" ment for a ship 155 feet in length and 33-foot beam, and in no other method could such power ability be found. Numerous smaller boats have been equipped with gas power, but costs as to their operation are not yet accessible. The difficulty in the...