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aay Lot IAA HE extensive line of direction I and revolution indicators manu- factured by the McNab Co, Bridgeport, Conn., are described in de- tail in a new catalog being distributed by the company, These indicators have been. widely used on. naval and mer- chant vessels throughout the world. They are being used on a number of vessels plying the war zones where skillful maneuvering is essential to safety. The catalog is profusely illus- trated. Concise. descriptions are given of the various types of indicators. Other steamship appliances also are de- scribed, including a pneumatic counter, boiler circulator and fuel economizer, whistle control and pneumatic engine counter. New Detroit Office The Duluth-Superior Dredging Co., Duluth, has opened an office in the Ford building, Detroit. Bamlet Kent, after 22 years of service in the United States engineer office at Detroit, has become district manager in charge of the new Detroit office of the dredging company. He has had an extensive experience in supervising dredging operations car- ried on by the government around the Great Lakes. — Die and Holder The die and holder manufactured by the Greenfield Tap & Die Corp., Green- field, Mass., are thoroughly described and illustrated in .a catalog recently issued by that company. These dies were specially designed to give com- pactness with accuracy and strength. The catalog is liberally illustrated to show the various methods of using the die and holder. Kraft Yard Enlarges The Kraft Ship Yard & Dry Dock, Chicago, announces it has made a con- solidation of interests and services with A. F. Mitchell & Son, electric boiler welding; the G. Brading. boiler repair shop; the A. E. Clark electrical repair shop, and the E. G. Todt marine engine repair shop. This combination con- siderably enlarges the facilities of the Kraft shipyard, enabling it to take care of repair’ work on lake vessels of any character. The Kraft Ship Yard & Dry Dock is located at Ninety-fourth street ACA Oswald G. Villard is president, Pertinent Suggestions and Personal Gossip and Calumet river, South Chicago. <A complete organization for all kinds of above-waterline repair has fected. A circular signed by C. W. Kraft, A. F. Mitchell, G. Brading, A. E. Clark. and E. G. Todt has been dis- tributed announcing the consolidation of interests. Engine Builder Expands The Scranton Foundry & Engine Works, Inc., New York, has acquired the former plant of the Touhill Iron Works at Hickory and Mattes streets, Scranton, Pa. -The company was re- cently incorporated with a nominal capi- talization’ of ‘$100,000 to build marine engines of from 500 to 2500 horsepower and to make gray iron castings. The plant includes. four large buildings, several smaller structures, with a ground area of seven’ acres. Officers’ include M. J. O’Shaughnessy, president ; Hiram Dixon, vice president; E. V. Davis, treasurer; Roger Brassell, sec- : retary. Buys Shipping Paper The Nautical Gazette, an eastern shipping paper, has been purchased by the New York Evening Post Emil M. Scholz vice president and treasurer, and Robert B. McClean is secretary. Walter B. Hayward, city editor and for years a writer for the Evening Post, is the supervising editor of the Nautical Gazette. James Gray, who for the past year has been) editor and one of the owners of the Gazette, remains with the paper as associate editor. John P. Kirk, Noank, Conn., recently was appointed inspector of hull con- struction in the New England district for the United States Shipping Board Emergency Fleet Corp. Benjamin H. Elliott, formerly con- nected with the Barge Building & Re- pair Co., Brooklyn, N. Y., has accepted a position with the Universal Shipbuild- ing Co. Houston, Tex., as master builder. The Universal company has been awarded a government contract to construct twelve 3000-ton wooden ships. Lloyd’s Register of American Yachts for 1917 has just been issued. The book contains 520 pages and 48 colored 303 AAA been per-’ Co. plates. The number of yachts entered is 3590; clubs, 546; associations, 38; club and association burgees, 600; pri- vate signals of yachtsmen, 1872. The calling into government service of a large number of yachts complicated the work of compiling the register, but it will be found to be complete for the entire country. | ; Mechanical Refrigeration The Clothel Co., New York, describes its system of mechanical refrigeration ina recently issued booklet. The chemical used in this system:is ethyl chloride. This, it is said, is used to advantage at a low pressure. The size of the machine has been reduced and its operation simpli- fied. The system has been employed on a number of yachts, naval vessels and merchant ships. The booklet contains a number of illustrations showing the in- stallations employed on various well known yachts and destroyers. Late Marine Patents Copies of any one of these patents can be obtained by sending 15 cents in stamps to Siggers & Siggers, pat- ent lawyers, National Union building, Washington, D. C.,. by . mentioning The Marine Review: 1,223,416—Ship brake. Thomas O’Sullivan, ~ Montreal, Que., Can. 1,223,536—Torpedo shield for vessels. John O. Travelstead, Pendleton, Ore. a 1,223,616—Boat and its propeller. Otto A, W. Riecks, Everett, Mass. . 1,223,627—Ship protecting shield. William A. Shephard, Waukesha, Wis. 1,223,730 — Diving boat. Lincoln Pierce, Tucson, Ariz. 1,223,747 — Submarine vessel. Abraham ' Johannes Van Stockum, Rijswijk, Netherlands. 1,224,027 — Submarine. Schoenen, Great Falls, Mont. 1,224,120 — Propulsion mechanism. M. Cake, Philadelphia. 1,224,274—-Vessel propelling mechanism. John A. Cashel, Worthington, Minn. 1,224,678—Marine vessel. Ernest L. Sons, Pittsburgh, assignor of one-half to Samuel A. Boyd and one-fourth to William L. McCand- ~ less, Pittsburgh. 1,224,679—Life saving device. Sons, Pittsburgh, assignor of one-half to William L. McCandless and one-fourth to Samuel A. Boyd, Pittsburgh. °1,221,012—Vessel mooring and _ positioning apparatus. James A. Anderson, New York. 1,221,282—Life boat for submarines. Wil- liam Brown, Newark, N. J. 1,221,496—Leak obturating device for ships. Frederic Wullyamoz and Gustave Meyer, Lau- sanne, Switzerland. 1,221,087—Construction of turbine and_ like rotors. Charles Algernon Parsons and Alfred Quintin Carnegie, Newcastle-upon-Tyne, and Stanley Smith Cook, Wallsend, England; said Carnegie and Cook assignors to said Parsons. 1,225,252—- Motor attachment ffor boats. William James Johnston, Port Carling, Ont., Can., assignor of one-half to John Robin- son Clair Hodgson, Gregory Ont., Can. 1,225,295—-Internal combustion engine. John F. Wentworth, Quincy, Mass. 1,225,310—Internal combustion engine. John Frederick W. Horace Ernest L.