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November, 1913 Northern Pacific Ore Dock The new ore shipping dock of the Northern. Pacific railway, which: is situated on the south side of Superior Bay, opposite? Superior Entry, Wis., was completed in August, 1913, though work was only begun on the struc- ture in November, 1912.. The steam- er E. N. Saunders loaded the first ore at this dock on Aug. 24, taking a cargo of 6,700 tons of Crow Wing ore from the Cuyuna Mille Lacs mine, near Ironton, on the Cuyuna range. The dock is of steel and concrete construction. The length of the dock proper is 684 ft., having a steel ap- proach of 300 ft. and a timber ap- proach of 4,200 ft. It contains 102 pockets having a capacity of 35,700 tons. The amount of steel used in the dock proper was 3,440 tons and in the approach 740 tons. The _ concrete used in the superstructure amounted to. 13,500 cu. »yds.> and: iin' the bins, 3,400 cu. yds. There is no timber in the dock proper except walks and pocket flooring. The pocket floors have a slope of 47% degrees. The height of the dock is 80 ft. from mean water level to base of rail. Its width on top, including machinery platforms, is 70 ft. 8 in.; the extreme width across the pockets, is 57 ft. 2 in. The bottoms of the pockets are 43 ft. above the lake level and the pockets themselves are, therefore, 37 ft. in height. The superstructure is carried on a series of concrete columns. These columns are 2 ft. 9 in. by 8 ft. in cross Section and 34 ft. 10 in. inheight. They Test on concrete pedestals which are 8 ft. 2 in. high. The only reinfore- ing in the columns consists of four %-in. vertical rods, 34 ft. 10 in. in length, embedded 4 in. from each end Surface of the column. The concrete columns are in reality piers. They are THE MARINE REVIEW tied together longitudinally by two sets of reinforced concrete beams, each 2 ft. deep and 1% in. thick. 'The upper row of beams connects the' tops of the columns and the lower row is located at a point 16 ft. 5 in. above the top of the pedestals. The bins have circular fronts similar to Great Northern dock No. 4, and the dock is equipped with electric operated hoists and Dickerson pocket doors. The hoists are operated in groups from a line shaft, ten drums being connected to each motor; 25 H. P, 440-volt Crocker-Wheeler motors running 720 R. P. M. on three-phase current are employed. The hoists were manufac- tured by the Whiting Foundry Equip- ment Co., Harvey, Ill. The ore spouts are of steel, tapered, 5 ft. 10 in. wide at the upper end and 4 ft. 6 in. at the lower end with a constant depth of 2 ft. Dhey are eacg 3405, fe in length and in their lowest position swing 8% ft. above the water. The dock was erected under the supervision of J. W. Bell, assistant engineer of the Northern Pacific rail- way. The steel and trestle approaches were designed by H. E. Stevens, bridge engineer, and the dock proper by Max Toltz, of the Toltz Engineer- ing Co, ot Paul, Minn. The steel work was fabricated by the American Bridge Co., and erected by the Pitts- burgh Construction Co. Siems & Carey, of St. Paul, had the contract for the substructure. The concrete work in the ore pockets was handled by E. S. Johnson & Co., St. Paul. As stated, the dock proper contains only 102 pockets, but it is so de- signed that it may be extended to 300 pockets and so placed that two addi- tional docks of 300 pockets each may be built parallel to it. The main line of the Northern Pacific railroad passes through the axis of the Cuyuna range 403 and the dock was erected in order that the railroad might take care of its share of the output of this rapidly growing ore property. Bids were opened by Lieut. Col. Riche, United States government en- gineer, for the construction of a 28,- 200-ft. dock at Texas City, as follows: William Moore, Texas City, $294,- 095.87; Charles Clarke Co., Galveston, Texas, $315,719.99; R. A. Perry, San Francisco, Cal., $311,788.65; Bowers Southern Dredging Co., Galveston, Texas, $300,010.86; Isaac Heffron, Gal- veston, $311,832.86; Edward Gillen Dock & Dredge Co., Ashtabula, O., $620,069.73; .P. B. Miller, Houston, Texas, $356,204.25; Joseph Stewart Co., Galveston, Texas, $465,041.72. -Kantkink flexible metallic hose, made by the Goodyear Tire & Rubber Co., uo NORTHERN PACIFIC ORE DOCK AT SUPERIOR, AUG. 24, 1913 Akron, O., has: many points of dif- ference from the ordinary metallic hose. Inside is a regular hose tube, which carries the pressure and pre- vents heat, although the metallic sur- face itself is capable of withstanding pressure even if the inner tube were not there. The outside is an inter- locking metallic casing, completely covering the tube and made without 'sharp or rough edges, while it is so flexible that the hose may be tied into knots without injuring the outer cas- ing. Tests have shown that a pres- sure equal to 1,000 pounds per square inch will not burst the hose. The entire capital stock of the Put- nam Machine Co., Fitchburg, Mass., has just been purchased by Manning, Maxwell & Moore, New York. The - Putnam Machine Co. is the pioneer machine tool manufacturer in the country, the company having been started in a small way in 1836.