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ee es de ‘ips From the Trade Pertinent Suggestions and Personal Gossip ISS SSS ot AAA a0 HNNK00 MA HE Todd Shipyards Corporation, which was organized July 1 as a holding company for the Robins Dry Dock & Repair Co., New York and Brooklyn, the Tietjen & Lang Dry Dock Co., Hoboken, N. J.,and the Seattle Con- struction & Dry Dock Co., Seattle, Wash., has opened offices at 15 Whitehall street, New York, and has been organized with “the following officers: President, W. H. Todd; vice president, George Q. Palmer; secretary and treasurer, Carl R. Riedel. The three operating com- panies, although some changes have been made in their personnel, will con- tinue to conduct their affairs as in the past. Despite rumors, there will be no consolidation of the purchasing or other departments of the three concerns. The officers of the Robins Dry Dock & Re- par Co. are. President, W. H. Todd; vice president, George J. Robinson; secretary and treasurer, Carl R. Riedel. Officers of the Tietjen & Lang Dry Dock Co. are: President, George G. Raymond; vice president, Ernest Den- del; treasurer, Carl R. Riedel; secre- tary, Henry Frielinghaus. Recently the Seattle Construction & Dry Dock Co. was reorganized, for particulars of which see page 320. Mer Oxygen Company Expands The Internatonal Oxygen Co., New York City, is installing a new plant at College Point, L. I., for manufac- turing oxygen and hydrogen gas. It is expected that the installation will be completed late in August or early in September; after which the com- pany’s increasing trade in Brooklyn and its environs, as well as in Man- hattan, will be largely handled from this point. This local business has previously been supplied from the company’s Newark, N. J., works. The new plant gives increased facili- ties and permits prompter service in the supply of gases in cylinders. About six years ago, the Interna- tional company brought to America the rights to manufacture electro- lytic gas generating apparatus under certain European patents. An oxy- gen-hydrogen generating plant was installed to demonstrate the efficiency of the apparatus and the high purity of the gases. The Newark factory has since been operated to capacity in supplying the demand for the SSS company’s generators, which are made in both the unit and the bi- polar types. The manufacture of apparatus is the main business of the company, this feature of its work being con- centrated at the Newark factory. The manufacture and distribution of gas in cylinders is a local and sec- cndary feature. The Newark and College Point plants supply Greater New York and the adjoining indus- trial section of New Jersey. The plant at Verona, Pa., serves the Pittsburgh district. Performance of a Sheriffs’ Wheel Richard Piepkorn» owner and_ chief engineer of the lake steamer. GOGEBIC, recently forwarded to the Sheriffs Mfg. Co., Milwauke, Wis., some interesting observations upon the performance of a propeller wheel installed on his vessel by the Sheriffs company. He states that’ GoGEBIC is making one-half mile an hour better time loaded and one mile an hour better time light with the new wheel, and with a saving of one-fourth ton of coal. Vibration throughout the ship also has ceased. Mr. Piepkorn points out the saving in fuel used, and the increased earnings made possible by the greater speed. With the old wheel when increasing the speed or when cleaning fires, the steam “would get away from the firemen.” Now with the same crew, these opera- tions are performed without difficulty. GocEBIc swings a 12-foot diameter wheel. Poppet-Valve Engines The Nordberg Mfg. Co., Milwaukee, has issued a very interesting bulletin in which it describes the series of poppet- valve engines which it manufactures. This series includes full poppet, poppet uniflow and poppet corliss engines. This variety is valuable in assisting the builder to determine the type of engine best adapted to different classes of ser- vice and thus to insure high efficiency. The high-speed, full-poppet engines are recommended for ordinary non-con- densing service. For condensing service, either the poppet uniflow or the poppet corliss is best adapted. The poppet uniflow has a uniflow cylinder design; 334 _cored passages and ports, se NN that is, it has exhaust ports in the cylinder barrel and poppet steam valves. The poppet corliss is a compound engine with a full poppet high pressure cylin- der and a corliss valve low pressure cylinder. The poppet uniflow engine is said to be particularly adapted to widely fluctuating loads because of its flat steam consumption characteristic. The corliss type of poppet engine is recommended for service under constant load where it is said to show a high steam economy. The bulletin is well illustrated and shows installations of engines as well as the details of construction of the valves, operating gears and other parts. Par- ticular attention is drawn to the con- struction of the head which contains all the cylinder proper being a simple cylindrical casting which is free.to expand and contract with temperature changes. A number of pages are devoted to test results and discussions of the application of poppet engines to specific installations. Describes Marine Engines The Morris Machine Works, Bald- winsville, N.' Y., builder of centrifugal pumps, steam engines and_ hydraulic dredges, has issued a catalog describing its various products. Information is given in regard to its vertical marine engines which will prove of value to ship owners and operators. The line of products includes simple and com- pound engines in sizes from 1% to ap- proximately 300 horsepower. The book also. presents a complete discussion of the design and characteristics of Morris centrifugal pumps. Numerous | illus- trations show installations of this equip- ment. Sectional views also are shown in addition to curves of operating characteristics. Data are given for both horizontal and vertical pumps. These are both steam-driven and electric-driven types. Valuable information is given in regard to hydraulic dredging pumps and the work they may be expected to do under various conditions. The Illinois Steel Co. has instailed, in conjunction with whistle signal at its South Chicago plant, a flash light operated by electricity. The light is white and flashes every time the whistle blows. It is situated about 50 treet south of the red beacon light at the entrance to the north slip.