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46 Smaller Diesel Engines (Continued from Page 27) When the push rod moves over to- wards the pivoting point of the rock- er the movement of the push rod ap- proaches zero. The pump plunger, of course, is operated through a cross head to which the push rod is con- nected. This system of fuel control gives very find gradations of the amount of fuel which is injected and the arrangement used is even simpler than where a suction valve must be controlled in order to measure the amount of fuel to be injected. Fuel Supply Is Under Pressure The fuel supplied to the suction valves is under a pressure of five pounds. This is obtained by having the gear pump which supplies the fuel to the auxiliary fuel reservoir on the engine operate against a spring loaded relief valve. In other words, when the fuel pressure builds up to the five pounds, the excess fuel which is pumped by the gear pump over- flows back to the main supply tank. By having the fuel under pressure the cylinders of the injection pumps are positively filled on the opening of the suction valve and there is no pos- sibility of the pumps becoming air bound or of not discharging the full amount of fuel called for by the particular governor setting. There is no starting control wheel for this engine since it is built non- reversing and all that is required is a quick opening air valve in the air line to the pipe which leads to the starting valves. The governor set- ting is changed by means of a small hand wheel. It requires several turns of the gov- ernor wheel to effect any substantial change in the speed of the engine and so a manual control is provided. There is the small knob on the upper left hand side of the governor hous- ing. This works directly on the gov- ernor control shaft and therefore changes the setting of the injection pump plunger stroke to control the engine speed below that for which the governor is set, without chang- ing the setting of the governor springs. For most marine maneuvering serv- ice it is probable that the manual control will be used exclusively. When however, it is necessary to operate the engine for any length of time at reduced speeds it is advisable to set the speed by means of the governor control wheel. The manual control is also used for shutting the engine down and for any quick changes of MARINE REVIEW speed where the load remains reason- ably constant. Another important feature of the new line of marine diesels is the use of a built-in automotive type trans- mission which gives two speeds for- ward and one reverse. With the transmission set for half speed op- eration and the engine turning over at half speed, the propeller turns at one-fourth full speed. At such a speed as this it would be possible to operate a fishing boat all day for trolling and still have the engine op- erate economically. Full power and full speed of the engine is used for reversing which is also another fea- ture of the design. This transmission is built with the same refinements that are used in building the engine and all gears are case hardened and every part is built to the highest specifications. In other words, it is not just a transmission which is added on to the engine as is the case in so many jobs of this type. Since the clutch is of the multiple disk type and there are no friction bands or small planetary gears in the transmission assembly, it is practically indestructible and may be operated for unlimited periods in re- verse without overheating. This will be an important consideration from the standpoint of the user since there has sometimes been more trouble with transmissions and clutches than there has been with the engine itself. As previously mentioned this line of engines will also be built as diesel generating sets. One of these, the four-cylinder of 36 kilowatts, is shown in one of the accompanying illustra- tions. The engine is the same in all details with the exception that the bilge and circulating pumps are not used and the compressor may be op- erated unloaded except at such times as it is desired to fill the air starting tanks. Made Chairman of Agwi The directors of the Atlantic Gulf & West Indies Steamship lines: on Jan. 5 elected H. H. Raymond, presi- dent of the Clyde & Mallory Lines as chairman of the board of directors, to succeed the late Galen L. Stone. The board also elected Franklin D. Mooney president of the Agwi lines, to succeed Mr. Raymond as head of the Clyde & Mallory units. Mr. Mooney thus becomes president of all the Agwi lines and its subsidi- aries. Robert G. Stone was elected a director of the Agwi board and sub- sidiary groups, succeeding his father, the late Galen L. Stone. February, 1927 Winton Executive Visits European Diesel Plants George W. Codrington, vice presi- dent and general manager of the Winton Engine Co., Cleveland, re- turned on the BERENGARIA recently from a six weeks’ business and pleas- ure trip to Europe. Mr, Codrington had a most interesting trip and en- joyed especially the time spent at the plants of some of the European diesel engine builders. At all of the various GEORGE W. CODRINGTON Vice President and General Manager Winton Engine Co. plants which he found time to visit, he was treated with the utmost cour- tesy and consideration. “The leaders in the diesel engine industry abroad are certainly a progressive, high grade group of men,” said Mr. Codrington. “Coming into close contact with them, getting their viewpoint on various features of diesel engine designing and building, of interest and special significance to me, was a rare privi- lege, and to partake of their unex- pected and cordial hospitality a never- to-be-forgotten pleasure.” Mr. Codrington visited the follow- ing plants: Germania Werft, Kiel, Germany, where the Krupp diesels are built; M. A. N. diesel plant at Augs- burg, Germany; Sulzer Brothers Ltd., makers of the well known Sulzer two- cycle diesel engines, whose plant is located at Winterthur, Switzerland; Krupp Steel plant, at Essen, Ger- many. His itinerary included Ham- burg, Berlin, London, Glasgow and Paris. He returned to Cleveland bene- fited by the trip and with more con- fidence than ever in the future of the diesel.