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14 MARINE REVIEW. Enquirer--Say When Steam Yacht Race. Editor Marine Review:--We are the manufacturers of the Taylor upright water tube boiler, but up to date we have had no part what- ever in transferring the contest beween the above named boats to a con- test between boilers. Not a word has till now been written on the subject at our dictation or suggestion, nor within our knowledge until it appeared in print, but now it seems to us to be in order to make a few corrections to Mr. William A. Fairburn's article in your issue of Sept. 24. . Your correspondent who first opened up this subject, assumed from such data as he had at hand that the Enquirer's Taylor boiler weighed 24,640 pounds, whereas it weighed 19,100 pounds, and could be reduced to 14,000 pounds and still have as much and as effective heating surface as the Almy boiler, as per Mr. Fairburn's showing. (The Taylor boiler weighs 8 1-3 pounds to a square foot of heating surface.) Your correspondent's erroneous weights misled Mr. Fair- burn in that particular, and in consequence he gives some wrong figures in his article, hence we will pass over that part of it. In that article Mr. Fairburn has seen fit to introduce the Almy boiler into the controversy, which is our excuse for mentioning it by name in this reply, later on. It is not our purpose to attempt to build up the reputation of the Taylor boiler by tearing down that of any other make. Mr. Fairburn asks: "How do you repair this boiler without tearing it all to pieces, and what would be the result of any part of it giving out at sea?" We have this to say in reply: "The Taylor boiler is made insections. Any part of any section may be taken out at any time without disturbing its. fellow on either side. Every pipe in every section is interchangeable with its fellow pipes in its own and every other section. A single section might be stored on board without taking up much space, and it would supply any part which might possibly give out; or a section may be plugged at the bottom manifolds and dome, and repaired when next in port. But, 'practically, they are not repaired. No pipe or fitting has ever yet given out in any Taylor boiler. «It seems to us pertinent to this correspondence to state the follow- ing facts: The steam yacht Sentinel, with its Almy boiler, and the Dream, with its Taylor boiler, were brought out the same season. On August 26 last we were called upon to repair the pipes over the fire of the Almy boiler in the Sentinel. We have in our possession - pipes taken from that section, which from their position over the fire had been so frequently subjected to the sudden changes in tempera- ure of a tremendous heat below, with nothing inside save possibly sup- erheated steam, instantly changed to the temperature of the water, causing the pipes to scale off inside at every such sudden change, that the original thickness of the pipes had. been reduced to a mere shell and finally had bursted. They are quite free from sediment. These pipes over the fire really need renewal throughout. On the other hand, the Taylor boiler in the Dream has been used just as long and has never had a repair of any kind, and its crown sheet is as perfect to-day as when put in three years ago. This is "the proof of the pudding by the eating."' Mr. Fairburn further says: "I shoud not be surprised if much of the heating surface in the Taylor boiler becomes overheated by not haying proper circulation." It might answer the purpose to again offer the "proof of the pudding" argument, and say that in no instance has this.occurred in any Taylor boiler ever yet made, as be- fore stated, but we will go a little further. We have shown above, and haye the proofs in our possession, that this has occurred in the Sentinel's Almy boiler. We believe aiso that every boiler built on a similar arrangement of water tubes is liable to that trouble. It was that belief (based on experience) solely, which impelled Mr. Taylor to try to devise an arrangement of water tubes which would insure full pipes under all circumstances, and he has succeeded. It is not possible to expel the water from any part of the surface of the pipes - of the Taylor boiler by firing, or to injure any pipe or fitting by burning or cracking, because the circulation is so perfect. Neither can the circulation be stoppd. This 'is not true of any boiler using horizontal pipes over the fire. The 'circulation is often broken by the steam forcing the water' out' and holding it' there long enough to heat the pipes to a' white heat; then the water suddenly returns, cools the pipe, and a scale is aera inside. This reduces the cla of the pipe (which is always: heavy): till it bursts. It al- ways occcurs in the same place--immediately over the fire. The Tay- lor boiler uses the lightest steel pipe on the market and subjects each 'for boring. --_ section to 600 pounds pr essure before assembling the sections and 400 pounds after assembling. There can be no greater strain. on any part of the Taylor boiler than on the safety valve, as there is no unequal heating. Detroit Screw Works, Detroit, Mich., Sept. 29, 1896. Geo. Thrall, Sec'y & Treas, Trade Notes, The Institute for Home Study of Engineering, owned and operat- ed by the Scientific Machinist Co., Blackstone building, Cleveland, has just issued a handsome nec The work of this schoel in the different branches of electricity, mechanics, mechanical drawing and steam engineering, is proving attractive to progressive mechanical men. The Almy water tube boiler placed on the Shaconst 'Steamboat Co.'s steamer Queen City at Providence, R. I., in 1889, has been in use ever since and in the 64 years has saved $2, 300 worth of fuel. Par- ties interested in water tube boilers may have a comparative state- ment of performance of return tubular and Almy boilers* mailed them by applying to the Almy company at Providence, R. a This com- pany has issued recently a new catalogue. They haye also put on the market an automatic feed water regulator. A combination horizontal boring, drilling and milling machine that would be convenient for marine engine building concenrs has just been put on the market by Bement, Miles & Co., Philadelpia. They have built larger machines of this type, but the No. 1 has capacity for drilling or boring in the center of a 66-inch circle. Screw cutting attachments are furnished when desired. The spindle has a traverse of 40 inches, and two feeds are provided for drilling and two These feeds and the spindle movement are controlled from the most convenient position. The main table is made 4 or 5 feet long, and the yoke is adjustable and can be clamped to the main table to increase stiffness. An inquiry addressed to the firm's Chicago office, No. 1534 Marquette building, will be answered wane the aS trations and a full description. vig ae The number of naphtha launches used for amie and ii business has so increased during the past few years that parties who would be benefitted by it have endeavored to secure legislation that would require the employment of engineers and pilots. In the past such effots haye been overcome by information showing the sim- plicity of such engines. But the latest bill, making boats of this class of 15 tons and over that carry passengers for hire subject to United States inspection laws, that require employment of engineer and pilot, and making all launches subject to the rules relating to lights, signals, steering, ete., will probably become a law. This leaves launches of all sizes used for pleasure untrammelled as to rules excepting those that aim at safety in navigation. Launches complete may be ob- tained from the Gas Engine and Power Co., Morris Heights, New York, for $5v0 and from that upwards to $F,000. It may not be gen- erally known that this company will sell engines alone for hulls built elsewhere. An engine of one horse power is listed at $350, and an eight horse power engiue at $1,000, the weight of the latter being only 600 pounds. As regards the safety of their launches, this company makes an offer of $500 to anybody who can explode one, and. they furnish the launch for the experiment, requiring a deposit of $100 as an eviaence of good faith. Much valuable information regarding pleasure boats is included in a catalogue recently issued. It will be sent on request of those interested. Milwaukee's new fire boat, which is being built by Rieboldt; Wol- ter & Co., will have pumps of 6,000 gallons capacity per minute. The Charles F, Elmes Engineering works of Chicago furnishes en- gines, pumps, steam steerer, etc., at a total cost of about $15,000, and Rebioldt, Wolter & Co. get S11, 970 for the wooden. hull. » Boilers are extra. The boat is nearing completion. She is 107 feet over all, 24 feet baem and 11 feet depth of hold. 3 CF == = INVENTORS | Requiring expe t and reliable assist- Li Yik&&= ance on Naval and General Marine <u Patents, address, MARINE REVIEW, Cieveland, oO. _ Advice Free. Strictly Confidential. ~.