The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

Anchor Windlass—Ship Yard Cranes LL HE accompanying illustration shows a_steam-driven anchor windlass built by the Dake Co, Grand. Haven, Mich. windlass is provided with a top capstan, which is geared for two speeds, giving two. dif- ferent pulling capacities. To change from fast to slow speed it is simply necessary to reverse the throttle. The capstan will then rotate in the same direction, but at one-third the former speed, with a corresponding increase in strain on the cable. The design of. the apparatus is compact and care has been taken to provide parts of ample size to avoid breakage. The windlass is built in three sizes with 10, 15 and 20-horsepower en- gines, respectively. The largest size requires a floor space of only 43 x 72 inches. Engine This Large Ship Yard Cranes Six large electrically operated trav- eling tower jib cranes, shown in the accompanying illustration, are now being erected at the ship yard of the Maryland Steel Co., Sparrows Point, Md. They were designed and _ built by the Alliance Machine Co., Alli- ance,: O. Four of these cranes have a ca- pacity of 12% tons and two of -15 tons. The height of each crane from the track on which it travels to the top of the tower is 125 feet. Each crane has a maximum working radius of 60 feet. These cranes are oper- ated by electric motors on 220-volt direct current, and are carried on eight large track wheels mounted in equaliz- ing trucks. The longitudinal travel along the shipway is accomplished by two com- plete lines of gearing, each op- erated by a motor; each crane has a double drive with individual motors. These cranes are provided with two hoists, 15-tons and 3-tons capacity, respectively; the latter are designed for lifting loads up to three tons at 150 feet per minute, and each crane is so constructed that the jib can swing 360 degrees. The length and adjustable feature of the jib makes it possible for each crane to serve the full side of one- half of each of the two vessels be- tween which it operates. In other words, the reach extends beyond the center of the vessel. It will be noted from the illustration that the cranes are constricted so that a locomotive can pass through the archway form- ing the base, making it possible to get the materials used in the con- struction of vessels past the first crane and into the radius of the sec- ond of each pair. The towers are strongly braced and an ample factor of safety has been al- lowed. The operator is provided with a cab in which he is protected from the weather. STEAM ANCHOR WINDLASS WITH TOP CAPSTAN 86 REVOLVING SHIP CRANE Raising F-4, The Broderick & Bascom Rope Co.. St. Louis, Mo., has issued a reprint ot an exceedingly interesting article whick recently appeared in The Yellow Strand, describing the operations connected with raising the wrecked United States Subk- marine F4 in Honolulu harbor. For a week the submerged vessel was held by a single 2%4-inch manila center wire rope manufactured at the Broderick & Bascom factory. The rope was not new when requisitioned by the government for salvings the F4:.. In fact, it had already done heavy duty for three years on construction work for the Hilo Rail- way Co. on the island of Hawaii near Honolulu. During the year recently closed 10,279 vessels arrived at the port of New York. This is an increase of 1,076 vessels as compared with the year 1914. American ships showed an increase in arrivals of 654, British 282, Dutch 146 and Nor- wegian 108. German arrivals decreased 348, Austrian 49 and Cuban 39. The battleship Trxas has been do- nated a solid silver model of an an- cient warship standing 4 feet high, by the Holland-American line,