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16a MARINE REVIEW. 25 AMERICAN BLOWER CoO. AT PAN-AMERICAN. In block No. 26 of machinery hall, at the Pan-American exposi- tion, is an exhibit of heaters, fans, engines, blowers, dry kilns, trucks and other kindred machinery, which is quite interesting and well worth the few minutes time necessary to inspect it by anyone who has use for such machinery. Almost every one is in- terested in this particular line, as these devices enter into almost all lines of manufacture in some way or other. The booth this company has put up is one of the handsomest in the building. The general scheme is ren- dered in ivory white and deep green. This feature is some 20 ft. in height, being topped by a gable end resting on some very prominent columns. Above same is a large painting nearly 60 ft. in height, designed to be somewhat emblematical of the American blower, The company has another feature which attracts a great deal of atten- tion, being a model of their widely known and very successful "'moist air' dry kiln. This model has a glass side, enabling the spectator to see the exact operation of the kiln. They also have a large 140 in. full-housed steel plate fan running, being driven by an 8x8 marine type vertical engine, coupled direct to the fan shaft. From the discharge of this- fan, which points upward, they have myriads of yellow and blue ribbons streaming up into the air. These colors, of course, are the college colors of the University of Michigan, and no Michigan college graduate goes by with- out noticing it, and it likewise always attracts a great deal of attention from the ladies. In the wall back of the exhibit they have fitted a 108 in. disc fan, which is about as large as one commonly sees in such a place. It is by no means the largest they build, however. They are also exhibit- ing a Moorehead automatic return steam trap in operation, which clearly shows how the trap drains condensation from heating surfaces and delivers it direct to the boiler. There is also a large pressure blower mounted on a Z iron base, on the other end of which is the vertical automatic high- speed engine for driving same. They are also showing a horizontal, auto- matic high-speed engine and a vertical low pressure engine, as well as their widely known A, B, C exhaust fans, the adjustable features of which have been so frequently enlarged upon that further mention is hardly necessary here. The Greenfield Steam Engine Works, 5th and Cross streets, East Newark, N. J., reports phenomenal success with their engine output since the establishment of the company in 1874. Besides the manufacture of the "Greenfield" vertical, stationary, throttling and automatic and yacht en- gines, they manufacture horizontal and vertical, stationary and marine boilers; also many steam appliances and stationary and marine gas and gasoline engines. This company has furnished since the middle of June to the United States government eleven engines for new cruisers and have altogether on different cruisers 184, and in other branches of the govern- ment bureau of engraving and printing, hospital service, etc., from twenty- five to thirty more. The Standard Oil Co. is a large purchaser, having taken in all about 250 engines. In the gas works of the United States there are installed from 575 to 600, and the same number sold to other companies and individuals throughout the country. The engines, which are built for all purposes, range from 3 to 300 H.P. The motto of the company has come to be "Once a customer, always a customer." It would certainly pay intending purchasers to write for circulars and full information before ordering elsewhere. The Falls Hollow Staybolt Co., Cuyahoga Falls, Ohio, have just issued a card of sizes of staybolts for use in locomotive, marine and sta- tionary boilers. The card is accompanied with a little circular setting forth the advantages of the staybolts and both will be sent to' anyone upon application. Electrolytic action on Brass Tubing which was taken out and replaced by " Benedict-Nickel."' --From a photograph. facture of " Benedict-Nickel."' Depots: NEW YORK, 253 Broadway. Condenser Tubes made from " Benedict-Nickel" resist Corrosion and the destructive effect of Electrolysis: " Benedict-Nickel" Condenser Tubes are perfectly homogeneous and highly non-corrosive. They are rolled from solid cylindrical billets which contain absolutely no zine nor any other weakening metal. The illustration shows how " Benedict-Nickel" Condenser Tubes are made. The spiral formation given to the walls of the tubes increases their tensile strength 50% over brass, and makes them the toughest and strongest tubes manufactured. Another advantage is that, owing to their extreme stiffness, they can be made of thinner gauge, and yet be stronger than the thicker brass or copper tubes of the same diameter. The economical feature will therefore be readily understood. A treatise on 'Electrolysis of Condenser 'Tubes'? mailed upon request. We are also among the largest manufacturers of Seamless Brass and Copper Tubing, and the ONLY manufac- turers in the United States of this tubing rolled spirally from a solid billet. This is the process used in the manu- BENEDICT & BURNHAM MFG. CO., MILLS AND Main Orrices, WATERBURY, CONN. "Benedict-Nickel" Tubing in perfect con- dition after 28 months' service. --From a photograph. BOSTON, 172 High Street. V.WARING,N.Y.