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

ES ee April, 1910 TRIAL TRIP OF HERMAN FRASCH. The Herman Frasch, built by the Fore River Ship Building Co., Quincy, Mass., for the Union Sulphur Co. of New York, underwent her trial trip on March 19, developing a speed of 'TAE Marine. Review rows of oak piling from 40 to 45 ft. long, driven to refusal. The concrete girders supporting' the dock are car- ried well down below mean low water level. An expansion joint is provided every 50 ft. The ore floor is directly back of, TRIAL Trip oF STEAMER HERMAN FRASCH. 12%4- knots in 'light ballast trim. The contract requirements were for 12 _ knots light and 10% knots loaded. CAR FERRY ANN ARBOR NO. 1 BURNED. Car ferry Ann Arbor No. 1 was burned at Manitowoc, Wis., at 5 p. m. March 8 with a cargo of 22 loaded cars. The fire started forward and spread rapidly, completely destroying the ferry. The car ferry was built in 1892 at Toledo for the Ann Arbor railway, and was 260 ft. long, 53 ft. beam and 15 ft. deep. COMBINED DOCK: AND ORE FLOOR OF REINFORCED CONCRETE. Following is a brief description of the Detroit Iron & Steel Co.'s com- bined re-inforced concrete dock and ore floor on Big Island. It-is sup- ported upon wood piling, being de- signed to obtain lightness and dura- bility without sacrifice of strength. The dock was designed to meet local conditions, bringing into use property that otherwise could only have been improved at considerable expense. The dock proper is 28 ft. wide by 200 ft. long, resting on two double and really a part of, the dock, being tied to it--the whole forming a con- tinuous monolithic structure and main- taining perfect alignment of ore bridge towers, thereby insuring maximum ef- 137 line of the inner girder of the dock proper to the center line of the in- land girder. This girder supports the rear tower of the ore bridge. The ore floor consists of a 12-in. slab resting directly upon 12-in. piling 35 ft. long, spaced 4 ft. center to center, both ways. No allowance has been made for the earth under the floor taking any load whatever, the entire weight amounting to about 6,800 Ibs. per sq. ft., being carried by the piling. The top of the ore floor is dropped 4 ft. below the top of the girders, thus increasing the capacity about 7,400 tons, the total capacity being approxi- mately 245 tons per lineal foot of floor, which is 200 ft. long. The dock was designed and: built by The Carey Construction Co., of Cleve- land, Ohio, under the supervision of Arthur G. McKee, the well-known fur- nace engineer. THE STERN FRAME OF THE WHITE STAR _ LEVIATHAN, OLYMPIC. The largest ship's stern frame yet manufactured has just recently left the works of the Darlington Forge Co. It is for the great White Star liner Olympic, which Messrs. Harland & Wolff are building at Belfast. The weight of the stern frame casting alone is over 70 tons, and for the pur- pose of transport it had to be made in two pieces. The shaft brackets supporting the after propellers weigh about 75 tons, and those for the for- THe BurNING Car Ferry ANN Arzsor No. 1. ficiency of the machine at all times, a service that is often exacted. The ore floor was built over low marshy. ground covered at times with from six to twelve inches of water, and extends 173 ft. from the center ward propellers 50 tons. The upper part of the stern frame is 63 ft. high and 22 ft. wide. The Seaford Marine Railway Co., Seaford, Del., is grading for addi- tional building slips.