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New Trade Publications FLEXIBLE COUPLINGS—Smith & Serrell, Newark, N. J., has issued a bulletin covering its marine type of flexible coupling, discuss- ing the advantages of this type over a rigid shaft, giving instructions for installing and engineering data by which the proper size coupling may be selected. : ELECTRIC WELDING—Electric Arc Cue ting & Welding Co., Newark, N. J., has is- sued two bulletins, one describing its gen- erator for alternating and direct current and its portable welding device. — PNEUMATIC RIVETERS—Hanna Engineer- ing Works, Chicago, has issued a_ bulletin eovering its pneumatic riveters, describing the operating characteristics of its riveters and giving general information on the art of riveting. Diagrams and _ halftones illustrate the text. OXYGEN MANIFOLDS—Air Reduction Sales Co., New York, has issued a_ section of its standard catalog devoted to manifolds for controlling discharge of oxygen from a number of cylinders. By use of these devices oxygen is distributed by pipe line at proper pressure to a number of cutters and welders. It is illustrated to show method of connecting cylinders and regulating pressure. ‘REFRACTORIES—A bunch of ‘“bouquets’ for its product and service is presented by the Laclede-Christy Clay Products Co., St. Louis, with a list of accomplishments in the re- fractory field by this company. ARC WELDING ACCESSORIES—Impor- tance of accessories used in arc welding is stressed in a bulletin by the General Electric Co., Schenectady, N. Y. Shields, helmets, electrode holders, brushes, electrodes, cable and other devices are illustrated and described. PULVERIZERS—Raymond Bros. Impact Pulverizer Co., Chicago, has issued a catalog with some unusual features. Various pul- verizing problems are gone into in consider- able detail and suitability of various pul- verizers to different classes of material is discussed. A complete air separating plant is described. It is well illustrated by halftones and diagrams. OIL EQUIPMENT—Universal need for lubricating oil for every turning wheel in in- dustry is the text of a bulletin by S. F. Bowser & Co. Inc., Fort Wayne, Ind. Need for accurate measurement and saving of oil from spillage or cver measurement are em- phasized and use of various devices is sug- gested as a means to that end. PYROMETER—Pyrometer Instrument Co., New York, has issued a leaflet describing its radiation pyrometer, with description of its construction and use to determine tempera- tures from a distance. CENTRIFUGAL PUMPS—Single-stage, dou- ble-suction, volute centrifugal pumps of several different sizes are described in a_ catalog issued by the Ingersoll-Rand Co., New York. Cross sections of the various parts are shown to give constructional features. WRENCHES—J. H. Williams & Co., Buffalo, has issued the twentieth edition of its catalog of wrenches. This edition includes a new alloy steel wrench, describes a new finish and presents chain pipe tongs and_ light clamps, in addition to the line formerly pre- sented. COAL PULVERIZER—Illinois Stoker Co., Alton, Ill., has issued a booklet describing its equipment for pulverized coal firing. By consolidation of the K-B Pulverizer Corp. with this company a complete unit system is provided. Low speed of operation, grinding of the coal and immediate air separation of dust are features of this equipment. Coal is reduced to a fine condition by. the use of abrasive blocks. Complete data are pre- sented. 3 ELECTRIC EQUIPMENT—Among bulletins by the General Electric Co., Sche- nectady, N. Y., are the following: Squirrel cage motors; drum type controller equipment ; control equipments; hand-starting compen- sators; automatic starting compensators ; shoe- type solenoid brakes. ELECTRIC HOISTS—Shepard Electric Crane & Hoist Co., Montour Falls, N. Y., has is- sued an illustrated descriptive catalog of its floor-operated electric hoists. Illustrations por- tray various installations. Construction is covered by illustrations and data. WIRE CLOTH—Federal Wire Cloth Co., Newark, N. J., has issued a catalog of its products. It contains much matter in ad- dition to previous issues. Tables are pro- vided to give information to users of wire cloth. CARBON DIOXIDE METERS—Leeds & Northrup Co., Philadelphia, manufacturer of electrical measuring instruments, has issued a bulletin covering its device for measuring carbon dioxide in gases passing to the stack from furnaces. It is fully illustrated to cover installation and all details of the de- vice. SPEED REDUCERS—Link-Belt Co., Chicago, eurrent is circulating a booklet describing its speed reducer as manufactured by its subsidiary, the H. W. Caldwell Co., Chicago. It is fully illustrated by halftones and diagrams and in- cludes tabular data. CENTRIFUGAL PUMPS—Dean Hill Pump Co., Anderson, Ind., describes in a current bulletin a ball-bearing type of double section pump. Drawings and details show its construc- tion and data are supplied. PORTABLE ELEVATOR—Revolvator Co., Jersey City, N. J., has issued a bulletin on its hand power model with revolvable base for raising and tiering materials. Illustrations show construction, and operation and complete data are given. Business N ews for the Marine Trade Linea Merecanta de Colombia American Co., New York, has been incorporated to operate steamships, with $10,000 capital, by R. C. Diaz, J. Davila and C. Muller. G. L. Robin- son, 150 Nassau street, is attorney. Maritime Accessories Corp., Fort Washing- ton, N. Y., has been incorporated with 100 shares no par value by W. J. Eldredge, C. P. Schroetter and J. R. Stewart. Foley & Mar- tin, 64 Wall street, New York, are attorneys. William A. Golden, New York, has been in- corporated with 100 shares no par value, to deal in ships and barges by W. A. Golden, M. ‘R. B. Golden and C. Golden. H. H. Klein, 56 ‘William street, New York, is attorney. Steamer Romulus Corp., New York, has been incorporated with $100,000 capital to operate steamships, by T. P. Gallagher, R. A. Murphy and M. Werner. Crowell & Rouse, 24 Broad street, is attorney. Sagami Steamship Co., New York, has been incorporated with $300,000 capital by A. Skill- man, E. Kraychi and J. E. Medler. H,. Gold- man, 120 Broadway, is attorney. Merrian Bros. Inc., Boston, has been incor- porated with $125,000 capital to deal in marine hardware and similar products by John Gor- don, president, 100 Milk street, Boston; Frank W. Merriman, treasurer, 185 Armory street, 54 Jamaica Plain, Mass., and Elise D. Gordon, clerk. Steam Tug O’BrRIEN sisters and steam tug P. H. Wise have been incorporated at Port Washington, N. Y., with 100 shares no par value each, by W. J. Eldredge, C. F. Schroetter and W. A. Knight. Foley & Martin, 64 Wall street, New York, are attorneys. Foreign Outlet Co., New York, has been in- corporated with $2000 capital to act as ship- ping agents by N. Goldstein and G. Goldstein. H. Goldstein, 1117 Gerard avenue, is attorney. Inspector Steamship Corp., New York, has been incorporated with $100,000 capital by H. C. Hand, S. C. Wood and R. J. Gorman. Crowell & Rouse, 24 Broad street, are corre- spondents. Sudbury Steamship Co., Albany, N. Y., has been incorporated with 1000 shares no par value by H. C. Band, H. J. Gorman and S. C. Wood. J. R. Vanhorne, 67 Wall street, New York, is attorney. Pere Marquette railroad has ordered from the Manitowoc Shipbuilding Corp., Manitowoc, Wis., a 400-foot car ferry to be used on St. Clair river. It will be put in service about Nov. 1. Marine Equipment Co. Ine., Norfolk, Va., has been incorporated with $20,000 capital by MARINE REVIEW—July, 1927 S. Lloyd Drake, Portsmouth, Va., and Julius Schlain, Norfolk. York River Terminal Co. has -been incorpo- rated at Richmond, Va., by Channing M. Ward, 2314A Grove avenue, William V. Crump and R. Grayson Dashiell, Mutual building. Canadian government merchant marine will build, instead of purchase, the additional ships required for special service between Canada andthe British West Indies,- provided for in the trade treaty effected some time ago. Five ships will be required, and tenders will be called immediately for their construction. Three of the ships will be built in Canada and two in the United States. The cost is estimated roughly at $500,000 each. The city of Port Arthur, Ont., has made a new agreement with the Port Arthur Ship- building Co., the basis of which will be em- bodied in a bylaw and submitted to the ratepayers April 6. If the bylaw carries the company will be granted a fixed assessment of $125,000 for ten years, in return for which it guarantee to spend $300,000 in development work and also guarantees an annual pay roll of $200,000. Independent Barge Canal Towing Corp., Buf- falo, has been incorporated by J. A. Stone.