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72 loose parts, its enduring qualities are not impaired by usage. The openings at each end permits the removal or re- placing of globes with the greatest case and rapidity. All impact comes upon the guard, which fully protects the fixture and which is made of sufficient strength to prevent any distortion . when subjected to most severe usage. It can be dragged along decks, or rolled about without harm. It can be carried to any location, and its cable plugged in circuit. It is just the thing for lowering into holds of ships; dropping over the sides, hung to riggings, poles, on stanchions, lo- cated where illumination is desired. It gives a large volume of light, but unlike the arc lamp, it is not affected by vibration or. jars. No carbons to be constantly replaced or adjustments required to mechanism; no expert at- tention as it is simple in all of its de- tails. It is fitted with V. P. globes and incandescent lamps that are standard therefore renewals can be procured at most any port or regular electrical supply dealers of any city. Compare this with a large and special glass- ware, if a cluster of lamps were in- closed under one globe, or of the dif- ferent makes of arc lamp globes. It is safe, as each lamp is inclosed within a V. P. globe as required by the board of underwriters where light - ig used in places subject to gases or combustible materials. One lamp giv- ing out does not affect the others as each lamp is a unit. It is made in an oval shape 12 in. round and 18 in. long-and is not only compact but by its rounded ends is not subject to catching anything when being dragged, raised, or lowezed. The S-M Water-tight Bunch Light is especially adapted for ships, mines, tunnels, railways, and for other work where lamps require protection, but as a practical deck and cargo cluster, it has no equal. It is ideal from an _ economical standpoint and the price small when compared with the protection it af- fords the lamps and the safe-guarding of valuable interests. The Seidler:-Miner Electric Co. also manufacture a full line of. standard marine electrical fixtures and fittings, on which they issue a complete cata- log, which can be had upon applica- tion. ~ Angus McKay, who acted as wheels- man on the steamer Kensington the past season, will make a tour of Canada as the MARINE REvVIEW's special repre- sentative. Mr. McKay has many friends on the lakes. THE Marine REVIEW AN IMPROVED BLOW-OFF VALVE. The cut herewith fully illustrates an improved design of blow-off valve which embodies a number of important features highly appreciated by users, Heretofore, in all makes of blow-off valves, the seat was so located, that, as the disc approached same, there would DURO BLOW-OFF VALVE. be an accumulat:on of scale and sedi- ment. The effect of this accumulation 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 to the seat bearing after the disc had passed and cut off the inlet. This method, however, has not proven satisfactory, as the valve hody would soon wear, and, in a short time permit the passage of scale and sediment. These defects have been overcome in this im- proved design blow-off valve The plug fits snugly in a separate and easily re- movable bronze casing, which can be readily replaced when worn. Any accu- mulation 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. In the sectional view it will be seen that the 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 into a second brass ring F, the object of this being to make it possible to remove 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 introduction 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 un- screwing by non-rotating washer K. The threads of the stem M owserate within the bronze bushing in the top of the Yoke, which bushing can easily be re- moved. It will be seen from this description that all parts of the valve have been so designed that they can be easily renewed when worn or broken. The disc D, hav- ing 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 good as: new. : In operating the "Duro" valve, when it is desirable to close same. the disc is screwed down in the usual manner. As the edge of disc D approaches the cylin- drical 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 E. the leak- age 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. As _ the seat and disc ring can be removed very easily and at small cost, it will be plain that the valve is very durable and will last indefinitely. This article, known by the trade name "Duro," is constructed of the very best materials and carefully tested, and The Lunkenheimer Co., Cincinnati, who are its manufacturers, guarantee it to sur- pass in durability, any other blow-off valve on the market. MARINE PATENTS. Copies of these 'patents can be obtained by sending ten cents in stamps to Siggers & Sig- gers, patent lawyers, suite 11, National Union Ins. building, Washington, D. C Wil- 838,532.--Reversible Propeller. liam C. Fischer, Huntington, N. Y., as- signor of eighty-five one-hundredths to Maurice Lachman, New York, N. Y. 838,690.--Breeches-Buoy, John W. Dalton, Sandwich, Mass., assignor to Dalton Life-Saving Appliance Co., a corporation of Massachusetts. 838,691--Breeches-Buoy. John W. Dalton, Sandwich, Mass., assignor to Dalton Life Saving Appliance Co., a corporation of Massachusetts. 838,821.--Lighthouse Construction. Thomas K. Thomson, Yonkers, N. Y. According to plans outlined by John Wharry, mate of the steamer Kensing- ton, he will start a nautical class at Owen Sound, Ont. There are many young Canadian-Americans who are fig- uring on advancing themselves before navigation opens.