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PONT Ge re Ny ee In returning the boat to its position when it is swtng inboard over the chocks the levers are brought to the vertical position and the boat lowered into place. The turnbuckles are then slacked to allow the lower link of the chain-grip to be hooked to the shaft and then set up, leaving the boat se- "THE MaRINE REVIEW paratus is the invention of Capt. Lew- is Tanning, of the Ward liner Man- zanillo, and Wm. J. Ryan, formerly second officer of the Havana. It is being placed on the market by the Boat Handling Gear Co. 95 Wall street, New York City, of which Capt. F. C. W. Smith is president. 2/ fans are in use in nearly all the big trans-Atlantic liners, and in the navies of all the principal European nations, the United States navy is now for the first time adopting them on a large scale. The Sirocco Engineering Co. is also turning out open fans for the United States torpedo boat destroyers RYAN-TANNING BOAT HANDLING GEAR, SIDE VIEW. cure and ready for service. In the tests carried out on the Ward liner Havana the three starboard boats were swung out with the aid of three men, all ready for lowering, in 36 sec- onds. One boat was unlatched, swung out and lowered to the water (a dis- tance of 50 ft.) the tackles unhooked and guys and boat painter secured in 37 seconds, the operation being per- formed by four men. The life boats used in the demonstration were 27 ft. In length and weighed two tons. The Ryan-Tanning boat handling ap- t TURBINE FANS FOR NEW BAT- TLESHIPS. Turbine fans for the forced draft equipment of the United States bat- tleships Delaware and. North Dakota are now under construction at the works of the Sirocco Engineering Co., Troy, N. Y. 'These fans, 14 in num- ber for each ship, are 27 in. in diame- ter and will be driven by motors con- structed at the works of the General Electric Co., Schenectady, N. Y. The installation is noteworthy for the rea- son that while the Sirocco turbine Nos. 17, 18 and 19, on which the ple- num system of draft will be used. The secretary of war issued to the customs officials of the New York dis- trict last week a description of the flag which will be flown as a warning to shipping that a submarine is at work be- low the surface of the water. The flag will be flown by the tender or "parent" vessel and shows a black fish on a white field, surrounded by a red border. It has never before been flown in New York harbor.