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

26 MARINE DURO BLOW-OFF VALVE. The Lunkenheimer Co. of Cincinnati asks that the attention of readers of the Review be directed to the type of blow-off valve to which they have given the trade name "Duro." In a circular dealing with this valve they say: "Biow-off valves have probably given more trouble than any of the other fittings which are part of the boiler equipment. Many kinds have been offered upon the market which are claimed to possess the chief requisite in valves of this kind, namely, durability. We have made blow-off valves of various kinds for a great many years and fully appreciate the difficulties that have been encountered in designing a really satisfactory valve. While we have made several varieties and types which have given fair satisfaction, our search for a really durable construction has not met with success until within the past two years. "Referring to the illustrations herewith it will be seen that the general form of this new valve is quite similar to the iron body angle blow-off valve which has been so extensively used for some years past. . . The object of this improved valve is to include what- AJ" ever merits the old-style valve possessed, and, in addition, a distinctive feature, the novelty of which will at once impress users of its practicability. Here- tofore in all makes of blow-off valves the seat was so located that as the disc approached same there would be an accumulation of scale and sediment. The effect of this accumula- tion would be to cut out the bearing surfaces to such an extent that in a short time the valve would become leaky. Various methods have been invented whereby the disc would fit tightly in the valve body, the object being to prevent the scale from passing on the seat bearing after the disc had passed and cut off the inlet. This method, however, has not proven satisfactory, as the valve body would soon wear, and, in a short time, per- mit the passage of scale and sediment. In the 'Duro' valve these defects have been overcome. The plug fits snugly in a separate and easily- removable bronze casing, which can be readily replaced when worn. Any accumulation of scale or sediment that might remain on the seat before the disc is brought in contact with same, is washed off by the water which passes around the plug when seating. "Tn the sectional view it will be seen that plug (C) carries a reversible double-faced disc (D), secured to plug (C) by stud (H) and nut (J). This plug (C) is guided perfectly in the valve body (A). The bronze seat ring (E) is screwed MILO, a second brass ring (F), the object of this being (gemma to make it possible to renew (E) very easily in case same is worn. At the back of the valve is a plug (B), the use of which is to permit the introduc- tion of a rod to clean out the blow-off pipe when desirable. The stem (M) which raises and lowers the disc (C) is held in place by lock nut (L), which is prevented from unscrewing by non- "rotating washer (K): It will be seen from 'this 'description that all parts of the valve have been -s0 designed that they can be easily renewed when worn or brokeni The disc (D), having 'two Babbitt-faced bearings (G), (G), it can be 'replaced at small cost, or the user of the valve can melt out the old Babbitt and pour in new 'metal, and, after this is faced off, the disc is as 7s oe as new. : J "In operating the 'Duro' valve, when it is de- 777/7iiae sirable to close same the disc is screwed down in _s the usual manner. As the edge of disc (D) ap- proaches the cylindrical extension of (E) these edges shear and cut off any scale or sediment which might pass. As the disc (D) continues to approach the seat bearing (FE), the leakage of water around same will effectually wash off any scale or sediment which might have accumulated thereon. The result of this is, that when the disc is perfectly seated no scale or sediment can remain between the bearings. In other makes of blow-off valves there is no provision made for washing off the seat bear- ing or renewing the part (E), which, in time, will be worn by the shear- ing of the disc (D) when cutting off scale and sediment. As both of these parts can be renewed very easily and at small cost, it will be plain that the valve is very durable and will last indefinitely. All parts are heavily and substantially constructed. It has been in practical use and tested under every variety of service for almost two years. These valves are made in three sizes--2, 214 and 3 in.--with screw, flange or screw and screw ends. Where flange-end valves are required for pressure 125 lbs. and above: we advise that the valves should have heavy dimension anges. : A _four-masted wooden schooner, building at the Houghton Bros. yard, Bath. Me., by Capt. J. W. Hawley, will be named Fred A. Daven- 'port. The three-masted schooner at the New England yard of Capt. M. D. McKown will bear the name of Alice M., for a daughter of Mr. Daven- port. [July 3 REVIEW. ONLY ONE SPECIAL SEASHORE EXCURSION. Only one special excursion to the seashore will be rtin via Pennsyl- vania 'nes this ae The date fixed for it is Thursday, July 31. On that date special rate round-trip tickets to ten of the most attractive sea- side resorts along the Atlantic coast will be sold and special through car service will be arranged for the convenience of persons wishing to visit Atlantic City, Cape May, Avalon, Anglesea, Holly Beach, Ocean City, Sea Isle City, Wildwood, New Jersey, Ocean City, Maryland, or Reho- both, Delaware. The return limits on tickets to either resort will cover the customary ten days vacation. For special information regarding fares, etc., consult nearest ticket agent, or address C. L. Kimball, A. G. P. A,, Cleveland. July 3. Cabins ana staterooms of modern vessels especially those in the passenger service. should demon- strate the supreme possibilities of the wood finisher's art. This demands a special varnish however, as atmospheric conditions are more destructive to varnish afloat than ashore and the ordinary article is of but little use. The varnish best adapted to with- stand the deleterious influences of wind, wave and weather is "BERRY BROTHERS' SPAR VARNISH." Further particulars and a unique ma- rine puzzle sent free for the _ asKing. Write us. Berry Brothers, Limited Varnish Manufacturers NEW YORK BOSTON _ PHILADELPHIA BALTIMORE CHICAGO CINCINNATI ST.. LOUIS SAN FRANCISCO Factory and Main Office, DETROIT '* Seaboard Steel Castings."' MANUFACTURERS OF A GUARANTEE OF QUALITY. '""THE ADMIRAL'? ANCHOR. = OPEN-HEARTH STEEL CASTINGS OF THE HIGHEST GRADE. FACILITIES FOR CASTINGS UP TO 80,000 POUNDS WEIGHT. MACHINE WORK AND PATTERNS FURNISHED WHEN REQUIRED. RAIL OR WATER DELIVERIES. CAPACITY, 1500 TONS PER MONTH Seaboard Steel Casting Co., CHESTER, PA. THE LATEST AND BEST STOCKLESS ANCHOR. APPROVED BY LLoyp's. ANCHORS CAST AND TESTED ON ORDER, OR STOCK ORDERS PROMPTLY FILLED. MARINE IRON WORKS, TO BOAT BUILDERS. Our exclusive specialty is designing and building (to order) compl ¢ f r plete outfits of genuine MARINE machinery in small and medium sizes (4 to 30 inch cylinders). HIGH PRESSURE--COMPOUND---TRIPLE EXPANSION and PADDLE WHEEL OUTFITS. EITHER WOOD OR COAL-BURNING MARINE BOILERS. CATALOGUE FREE. Station A, CHICAGO, ILL.