The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

32 MARINE REVIEW AND MARINE RECORD. - VENTILATING EQUIPMENT FOR TURKISH CRUISER. All reports from the works of the Cramps, Philadelphia, re- garding the cruiser Medjidia which they are building for the Ot- toman empire are to the effect that no pains are being spared to embody in this vessel the latest improvements in naval construc- tion and that she will be an effective fighting machine in every way. One feature which has been looked after with particular care is the ventilation. which is of very great importance in a ves- sel serving in tropical or sub-tropical waters. Nine electrically- driven centrifueal fans are provided to ventilate the hull of the Mediidia. Fan No. 1 is a 40-in. steel-plate "exhauster," which will supply air above the protected deck, forward, while No. 2 of the same size will supply air below the protected deck forward. Fan No. 3 is an exact duplicate of Fan No. 1 and will supply air between frames 65. and 66 aft. No. 4, of the same size, will fur- nish air aft of frame 66. No. 5, which is a 50-in. steel-plate "ex- hauster,"' will supply air to the dynamo and evaporating rooms. No. 6,.a "Monogram exhauster" having a cast-iron housing, will supply air to the crew's quarters between frames 10 and 24. This fan is bolted to the ceiling and is driven by an electric motor supported on the side of the fan. Fan No. 7, which furnishes air to the crew's quarters between frames 24 and 34, is similar to Fan No. 2, Ean No. 8 for the crew's quarters between frames 34 and 25.is'a duplicate of Fan No. 6, and Fan No. 9, of the same Size and character, furnishes air to the officers' quarters between frames 55 and 83. The 40-in. fans are capable of supplying 4,260 cu. ft. ot air at I ounce pressure when running at 822- revolutions per minute and 144 ounces when running at 1,010 revolutions. 'Lhe 50-in. fan will supply 3,690 cu. ft. at I ounce pressure at 660 revolutions, and 1% ounces at 808 revolutions. The four "Mono- gram" fans can supply 2,110 cu. ft of air at I ounce pressure run- ning at 822 revolutions or at 134 ounces when running at 1,030 revolutions. The entire ventilating equipment was furnished by the B. F. Sturtevant Co. of Boston. COAST SHIP YARD NOTES. A new oil-burnér steamer for the coast trade, to be named Shasta, is under construction at Hoquaim, Wash., for the E. K. moods Lumber Co. She will be 220 ft. long, 36 ft. beam and 14 {. deep. : Crawford & Reid, Tacoma, Wash., launched last week the tug Katahoon for the International Fisheries Co. The tug is 65 ft. long, 12 ft. beam and 6 ft. depth of hold. Her engines will be in- stalled by the Puget Sound Iron & Steel Works of Tacoma. _ Cobb, Butler & Co., Rockland, Me. launched last Saturday aft- ernoon the steamer Monhegan for the Portland & Rockland Steamboat Co. She is of the following dimensions: Length over all, 143% it.; beam, 26 ft. 7 in.; depth of hold, 11,ft.. The frame: as of oak, the ceiling of hard pine and the planking of -hard pine - ae native oak. 'The vessel was designed by John J. Ward- well. TRADE NOTES, | The Sherwin-Williams Co. of Cleveland has purchased a tract of land adjoining its factory and intends to erect a build- ing to provide better shipping quarters and to care for its grow- "ing printing plant. : = The De Laval Steam Turbine Co., 74 Cortlandt street, New York, has issued in bulletin form a translation from the report [June 11, of High Privy Councillor Wichert of the Prussian national rail- ways at the German engineers' convention on the subject of train lighting with De Laval steam turbines. The report is a very in- teresting one and is well illustrated. It will be sent to anyone uest. : : he Scully Steel & Iron Co. of Chicago has just issued its stock list for May and June. It is very complete and very care- fully indexed. The book also contains useful information. to engineers, such as finding the circumference of a circle, the solidi- ty of a sphere, the surface of a ball, capacity of tanks, heating surface in tubular boilers and other matters of interest to me- chanics. The company has also issued a little booklet devoted to its wrought steel floor plates. These plates are very popular among architects, engineers, ship builders, contractors, master mechanics and others upon whom rests the responsibility of de- signing steel structures in which strength and lightness must be combined. ' : The British Westinghouse Electric & Manufacturing Co., Ltd., outbids German and Austrian manufacturers and wins an- other large municipal contract in England, the competition among manufacturers having been unusually keen and speculation rife as to the successful tenders. The London county council, how- ever, at a recent meeting, closed a contract with the British Wes- tinghouse company, amounting to about $590,000 and calling for 200 tram cars which are to be used on its lines south of the Thames. This is the largest order ever given for electric cars in England. One half of the cars are to be of the single-truck type, thirty-two tenders having been received for these. The remaining 100, for which twenty-six tenders were received, will be double- deck, bogie-truck tram cars, which are to be delivered in twenty- eight weeks. -- The proposal to establish a harbor commission at St. John, 'N. B., is not receiving general support in that city, the harbor improvements committee of the city council having passed a resolution favoring a trust to control the wharves at Land point and the other facilities for the west side. The position taken is that a general harbor commission would develop the ocean-going wharves at the expense of the coastwise trade, for which the city has provided wharves on an extensive scale. A committee was appointed to draw up a plan for a limited commission. 'Seaboard Steel Castings" -A Guarantee of Quality. Open Hearth Steel Castings of the Highest Grade for Locomotive, General Machinery and Shipbuild- ing Work. . Subject to U. S. Government, Lloyds, Railroad and Other Highest Requirements. ; Seaboard Steel Casting Co., Chester, Pa. | request accompanied by the necessary data.~ | rs " Two VIEWS "OF fe eee eae ROLLING LIFT BRIDGE : across the Chicago River at entrance to the Grand Central Station, Chicago, before and after the removal of th i i bridge, showing the obstruction to navigation caused by the center pier and protection pier of the id awing bude, ae eice aad | unobstructed channel given by the new Scherzer Rolling Lift Bridge. : Preliminary Sketches and estimates of cost furnished without charge to responsible parties in any part of the world, upon EX SCHERZER ROLLING LIFT BRIDGE CO.,Main Offices: 1616 Monadnock Block, CHICAGO, U.S.A. ae aimee