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30 to fuse the fire detecting wire. Flame and smoke play no part in the opera- tion. They are merely incidental, and as stated above, are not always pres- ent. Cold alone changes water into ice. The other incidentals, such as snow and wind, while they sometimes accompany the coming of the cold, play no part in the freezing of the water. The time element plays no part in the fusing of this fire detecting wire. There are three kinds of wire avail- able. One fuses nominally at 160 de- grees, the second fuses at 212 de- grees and the third fuses at 360 degrees. These different degrees of fus- ing are provided to take care of all conditions on a ship. What is normal temperature for one part of the ship is not normal temperature for another, so with this assortment to choose from the engineer can install in all parts of the ship wire that will detect and re- port abnormal temperature conditions. Take the 160 degree wire for ex- ample. It does not matter how short a time nor how long a time it takes to reach this degree of heat. . Thus, the slowly generating heat of spon- taneous combustion origin will turn in an alarm when the temperature of the wire is raised to 160 degrees, just as surely as though the increased tem- perature were due to a “flash” fire. This wire operates on the fixed tem- perature principle. Under Test At All Times The fire detecting wire is installed upon the closed circuit principle; that is, all of the fire detecting wire and associated connections are under elec- trical test at all times, so that any breakage of the wire, or disarrange- ment of the circuit, either accidental or intentional, causes the trouble bell to ring. The source of power to operate the system is obtained from a standard type of sealed storage batteries. The system is complete in itself. It is not dependent upon an outside source of power which may or may not be ready to operate the lights and the gongs at a crucial time. The fire detecting wire is quite small in diameter and is readily in- stalled and adapted to the contour of beams and other under-deck § struc- tures. For coal bunkers and other places where the liability to mechan- ical injury is considerable, a_ steal guard molding is_ provided. This molding affords ample protection and has slots cut into it which lets the heat get into and operate upon the fire detecting wire. The use of electricity has acceler- ated and has reduced the cost of op- eration of our marine work. The MARINE REVIEW electric lamp and the electric motor have increased the efficiency of man in his work upon the water, and now electrical science has placed at his disposal another adaptation of the “magic spark” so that the skipper can now go about his task with absolute confidence that combustion will always remain in its proper sphere, namely as his servant, and any incipient mu- tiny will be made to tell on itself and thus enjoy but a short life. New Magnetic Brakes Reduced in Size The new magnetic brakes, types DI and AI, being manufactured by the Westinghouse Electric & Mfg. Co. for both direct-current and alternating- current service, in addition to being spring set and easily adjustable, have unusually small dimensions, a distinct advantage for industrial and marine applications. The small diameter of the brake wheel requires less power to operate and less time for start- ing and stopping. A weather-proof cast steel housing for the magnet, is another feature of these brakes. The magnet and coil unit is protected against damage and FORWARD END VIEW OF THE NEW 800 H.P. WINTON DIESEL ENGINE September, 1926 the weather. Ample ventilation is pro- vided for by hooded openings in the cover of the housing, and cored holes in the base. A feature particularly advantageous to machinery manufacturers, is the in- terchangeability of the magnets of the two types of brakes. The complete magnet can be removed from the brake by simply taking out one pivot pin and loosening two bolts in the tapered blocks, and a new magnet substituted in a very short time. With this design the same equipment may be used for both alternating-current and direct-current work by merely changing the magnet. A NEW TYPE OF MAGNETIC BRAKE WITH A COMPARATIVELY SMALL DIAM- ETER BRAKE WHEEL HAT there is an increasing de- I mand for the diesel type of marine oil engine in the United States, as well as all over the rest of the civilized world, is becoming more and more evident. The Winton Engine Co., Cleveland, has gained a country- wide reputation for smaller diesel engines. It is therefore not surpris- ing that this company, to meet a definite demand, has now gone into the building of larger engines. The ac- companying illustrations show the end and both side views of the new 800- horsepower marine diesel engine now being turned out by this company. Five of these engines were recently installed; two in each of the yachts ARCADIA and SAVARONA, and one in the dredge VIRGINIA now building for the American Dredging Co. The Win- ton company, with these engines enters the field of the larger size marine diesels. The impressive service record of their marine diesel engines rang- ing up to 600-horsepower would seem to be excellent guarantee of the per- formance of the larger 800-horsepower engine. The design of the new engine fol-