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28 | MARINE REVIEW. [May 2, ANOTHER LARGE SCHERZER LIFT BRIDGE. The six-track Scherzer rolling lift bridge across the Fort Point channel at the entrance to the south terminal station, Boston, Mass., completed in January, 1900, has been in continuous use under very heavy traffic conditions since that time, and has proven so satisfactory that the Scherzer Rolling Lift Bridge Co., No. 1616 Monadnock block, Chicago, has been authorized by the New York, New Haven i& Hartford Railroad Co. to design, prepare plans and supervise the construction of a four-track bridge to be constructed across the Pequonnock river at Bridgeport, Conn. The new bridge is to replace the existing double- track swing bridge, which will be discarded and removed in the process of four-tracking the main lines of the New York, New Haven & Hart- ford Railroad Co. at this point. : The fact that it was necessary to remove the swing bridge in the process of four-tracking the line is a forcible illustration of one of the advantages of the Scherzer type bridge. Whenever railroad traffic increases, the additional tracks necessary can always be supplied by the addition of single or double-track Scherzer bridges, without interfering with or requiring the removal of the existing bridge of the same type, whereas a single or double-track swing bridge must always be removed and replaced by a larger swing bridge whenever additional tracks are required. A large number of swing bridges have been removed and must be removed and discarded in the early future for this cause alone, owing to the growth of railroad traffic. The new bridge will be a deck structure. It will be composed of two parallel, double-track, movable spans, which may be operated jointly or singly, as desired. The motive power will be electricity, and the bridge will be opened or closed in less than thirty seconds, thus causing the least possible delay to railroad traffic from the opening of the bridge for the passage of veesels. [he bridge will be designed to carry the heaviest loadings, in accordance with the specifications of the New York, New Haven & Hartford Railroad iCo., dated 1901. TRIBUTE TO POCAHONTAS COAL. Consul Caughy of Messina says that Messrs. Price & Becker of that city recently received an inquiry from England as to the quality of Pocahontas coal. The English company, the letter stated, noted that the Messina firm had been discharging a cargo of this coal and asked for a candid opinion as to how it compared with Welsh coal. Their answer was: "We are not prepared to state what percentage of small a cargo of Pocahontas will show after discharging, but it will be perceptibly greater than in the case of a cargo of good screened Welsh coal. But the small of Pocahontas is more serviceable than that of Welsh coal, excepting, perhaps, the limited number of first-class brands of Welsh small, although we are not even sure about this, as Pocahontas small cakes wonderfully well and is very clean. We have been using Pocahontas for years for our own steamers, which, we should add, have Howden's forced draft, and consequently fire bars rather close together. We should call it, taking it all around, fully equal to the very best Cardiff coal that we have ever had the opportunity of using, and we would say that on several occasions we have specially laid ourselves out to get the very best Cardiff coal, without sticking at the price, as we are convinced that the best coal is the cheapest in the long run. But we have found Welsh coal to vary considerably, the price and the brand being an unreliable guaranty as to quality and results; while Pocahontas coal, although it is only run of mine and not screened, is constant and practically always the same quality. For our part, we consider it to be, on the whole, a stronger and cleaner coal than such Welsh, even of the highest-priced brands, as*is accessible to the general public." AIR PUMPS, WHISTLES, ETC. The Gleason-Peters Air Pump Co., 20 West Houston street, New York. manufacturers of air pumps and appliances, make a specialty of marine work in this line. They manufacture air pumps, tanks, whistles, etc., for launches, steamers and sailing vessels. One of the illustrations ------ printed herewith shows a forward section of open pleasure boat fitted with a storage tank, which can be filled by means of hand pump or small power pump _ operated by motor, or from the engine. It will be noted that this storage tank is directly connected in a neat manner with the whistle. It is provided with a regulating device so that the same amount of pressure is used on the whistle, no matter what the pressure in the tank may be. A gauge shows , the tank pressure at all times. The second illustration shows a hand whistle apparatus. This may be let into the ceiling, as shown in the illus- tration, into a seat, or in fact may be placed in almost any part of the boat. Each stroke of the pump in this device makes a blast of the whistle, long or short as desired. The Gleason-Peters Co. also manufactures valves for air, gasoline, etc.; also gauges and all special fittings for yachts. All pumps, fittings, etc., will be electro-galvanized if so ordered, The 1901 catalogue of Marine Iron Works, station A, Chicago, is sent free on their receiving request. -It is descriptive of their product, so far as the special line of work in which they are engaged can be cata- logued. 2 . TRADE NOTES. _. Crane Co., 'Chicago, manufacturers of valves, fittings, etc., has de- cided to erect this summer a modern fire-proof building exclusively for offices. It will be about 90 ft. by 100 ft., five stories and basement, and will be located in the vicinity of its large cast iron and malleable fitting and valve works, at Canal and 12th streets. New works of Foster Engineering Co. at Newark, N. J., cover 80 by 100 ft. ground area with a height of three stories. About 200 skilled mechanics are now employed by this company in the manufacture of pressure regulators, reducing valves and other high-grade specialties for the regulation and control of all pressures of steam, water, gas or air. The Dearing Water Tube Boiler Co., Detroit, Mich., have just com- pleted and shipped a boiler for the yacht building at the Cheboygan Boat Works for Swift & Clark of Cheboygan, Mich. They are also to furnish a boiler for the yacht Sigma, owned by Col. S.'C. Reynolds of Toledo, and two boilers for the yacht Siesta, owned by Mr. F. H. Clergue of the Lake Superior Power Co. An attractive exhibit at the Pan-American exposition in Buffalo will be that of the Champion Rivet Co. of Cleveland. The exhibit will be made in connection with the Chicago Pneumatic Tool Co. of Chicago. The Chicago company will build a locomotive fire box on the grounds, using the Champion company's rivets. Those interested will therefore have full opportunity to see the rivets actually used in the boiler structure. The Seidler-Miner Electric Co., Detroit, Mich., finds a demand far exceeding expectations for a catalogue devoted to electric lighting of ships which they issued a short time ago. This company makes com- plete installations or reconstructs installations already in operation, and invites correspondence with those contemplating marine electrical equip- ment. They carry in stock a complete line of the marine supplies ot the General Electric Co. The American Blower Co. of Detroit, Mich., recently installed one of their large fans for forced draft on the lake passenger steamer City of Toledo. They have also sold an induced draft outfit, consisting of fan and engine, for use on the propeller Mark Hopkins. Another recent order covers all the heating apparatus for the half-million-dollar plant of the Natural Food Co. at Niagara Falls. This company has also just se- cured the contract for the General Electric Co.'s new plant at Birmingham, England. Mr. Jas. H. Manning, formerly master mechanic of the Union Pacific Railroad Co, at Cheyenne, Wyo., has been appointed western manager for the Standard Pneumatic Tool 'Co. of Chicago, with offices at San Fran: cisco, Cal., where a complete line of our "little giant'? pneumatic tools and appliances will be carried in stock, in order to supply expeditiously the rapidly-increasing demand for these machines upon the Pacific coast. The Standard company has branch offices at 141 Broadway, New York; 217 Ferguson building, Pittsburg; 185 Summer street, Boston. 'Curtis engineering specialties, manufactured by Julian D'Este Co., 24 Canal street, Boston, Miass., are illustrated and described in a neat little catalogue which the manufacturers will send to any address upon appli- cation. Especial attention is directed to an improved pressure regulator for steam which was very fully described in the Review of March 21 last. It is in use on steamships, for deck machinery and pumps, for supplying steam to engines at lower than boiler pressure, for steam heating and in any place where it is desired to reduce from a higher to a lower pressure automatically. BURNISHINE, Engineers THE MOST MARVELOUS METAL ee by POLISH IN THE WORLD. Getting he touchy ei Ge: In Liquid and We know that we can be of service to you if you will write us your wants as regards Paste Form, | PACKINGS for your valve rods, pistons, etc. We are the manufacturers of 1 Dalish |GQTIOCK'S cape Pack the Gude GRADE ---------- J for every purpose, and can assure you they i are the best, being made of superior ma- { terial, and are of the finest workmanship. ( hy Let us know your requirements and we ab- solutely guarantee to supply your wants. Address our nearest office and you will re- ceive our prompt, careful and best attention. Mela} Send for catalogue and samples to our nearest office. 5 no matter which, THE GARLOCK PACKING CO. it~ fi & Resisreneo JAM yt ra YT Ro CHICAGO. ILLS +14: NONE WITHOUT Produces a wonderfully brilliant] genuine ie lustre on brass, copper, nickel and all metals, no labor required. = Used on steamers all over the world. New York, Philadelphia, St. Louis. Free samples on application. Boston. Pittsburg. Denver. Chicago. Cleveland. San Francisco. J.C. PAUL & CO. 57 Dearborn St., CHICAGO, ILL. MAIN OFFICES AND FACTORIES: PALMYRA, N. Y.; ROME, GA. Contains NO ZINC nor any weaken- ing metal. Send for Booklet with treatise on "Electrolysts of Condenser Tubes.' Benedict & Burnham Mfg. Co., mits and Offices, Waterbury Conn. New York, 253 Bd'wy. Boston, 172 High St. Chicago, Cor. Lake & Clark Sts.