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60 Le | THE MARINE REVIEW THE MARINE REVIEW DEVOTED TO MARINE ENGINEERING, SHIP BUILDING AND ALLIED INDUSTRIES . Published Monthly by The Penton Publishing Company Penton Building, Cleveland. CHICAGO - 4 - 1328 Monadock Bik. CINCINNATI - - Gee ioe 503 Mercantile Library Bldg. NEW YORK - - - - - - 1115 West Street Bldg. PITTSBURGH - - - - - - 2148-49 Oliver Bldg. WASHINGTON, D.C. - a - - - - - Hibbs Bldg. BIRMINGHAM, ENG. - - - - - Prince Chambers . Subscription, $2 delivered free anywhere in the world. Single copies, 20 cents. Back numbers over three months, 50 cents. Change of advertising copy must reach this office on or before the first of each month. ; The Cleveland News Co. will supply the trade with THE MARINE REVIEW through the regular channels of the American News Co. € European Agents, The International News Company, Breams Building, Chancery Lane, London, E. C., England. Entered at the Post Office at Cleveland, Ohio, as Second Class Matter. (Copyright 1912, by Penton Publishing Company) _ OOM February, 1912 i CONTENTS Some SPECIAL. NUMBERS. 1.255 ieee e eee eee ce eee eee e see nes 41 Wg TOMER gate 05 6 ee re ees es ee mica sin tue rete 88 42. Raisinc THE Dry Dock DEWEY.....-.. 2. cette ete eee eee 43 44 fe ARE aD Ce, Sack OS na BRT e 0 NEG) Oar 0. 9ireh es Wve ORONO te Si, 6 ONS O: LAKE CARRIERS' ASSOCIATION Diese, ENGINES BY S1R FLANNERY FORTESQUE.......-04+eiseeee ee 46 TDEVELOPMENT (IN GEATTED. «orp see ie nace Caen ti oe te 48 Great LAKES PROTECTIVE ASSOCIATION... 05-2000 eee ee enter ees 49 PREYGHt FLANDEING IN PORTS yo els tee eee oe aes ce ela 50 eae Decks ee ee ee 82 Gir On OE TROLT lees ie oes es Fee ence trea ore a ere 57 es er ak ie se 58 Nw JEYEE OF (STERIL. BARGE. (0760186 ee ee eee esos 59 EDITORIAT 3 ty BN eae ets SS ee eo sere 4 60 CoAttnc Our PActRic PLEET. 0... eset ee te eee nent erence tes 62 BUILDING BULK FREIGHTERS. 1... 2c sees eect teeta 64 Wopes ON PIER SPEOLECTION 6 cree a Ghee ene Reece alicia aces 66 WGOTABLE RESCUE ON" LAKE SUPERIOR i oe eis ee ec ee ees 68 TeRGie WORK ON LAKE MIGHIGAN cee isciecee ens siege torte ite 69 'TEMPERATURE-ENTROPY TUR GRAM pegs eg arene she ena nate eernts 69 Danser TAKS CURIIGHT RAPE: (aio. ee eee ete eee se dU EENGINEERING SPECIALTIES AND AUXILIARIUES....... ics Reet hes tn clu oul ee Ni go 72 Ore Loading Docks In this issue are briefly described three new ore loading docks built on Lake Superior. The principle of these docks has not. changed from the beginning, though many material improvements have been made. The great departure has been in the use of steel and concrete in place of timber. Up to a few years ago, the supporting structure consisted of a frame timber trestle with wooden bins. The average life of the superstructure of such docks has been about eight years, the cost of maintenance being obviously high and the danger from fire great. 'The new docks de- scribed have eliminated wood as far as possible in their construction. These new docks are quite distinct in design. The new dock at Two Harbors is prac- tically a steel trestle, concrete being used only for foundations and bin partitions. The Great Northern dock at Superior uses concrete entirely for the sup- porting structure. The new dock at Presque Isle February, 1912 combines steel and concrete in its construction, the steel frame work carrying the load and the concrete protecting the steel. As the modern ship is naturally high out of the water when light, the docks have been made correspondingly higher, in order to afford suf- ficient pitch to the ore spouts, and as they are con- structed of more lasting material than the old docks, the pockets are much larger, affording greater dis- patch in loading. Power has also been introduced for operating spouts and doors and as the bin ends are curved instead of square, arching of the ore is not likely to occur. The point aimed at throughout is dispatch. The Iron Trade Review of Feb. 1 contains the full reply of the Steel Corporation to the government's suit, seeking to dissolve it. Everyone is advised to read it and then to read by way of contrast the gov- ernment's brief, as published in The Iron Trade Re- view of Noy. 2. Then do a little independent think- ing." That's all: Hawke-Olympic Collision Not in many years has a collision case, in which a merchant ship was involved, attracted so much attention as that of the White Star Liner Olympic and the British cruiser Hawke. The White Star Line has given notice of appeal from the decision of the ad- miralty court. Merchant navigators have never been stirred up quite like this before, the British papers being daily filled with communications from them. The great majority of these communications find for the Olympic. It is regrettable that the decision of the admiralty is so long that it cannot well be published in full, because it is an exceedingly fine summing up of the evidence as submitted. The evidence is volum- inous and conflicting and the court brought to its sift- ing a mind of great analytical clarity. In fact, after reading the decision, it is difficult to understand how any other opinion could have been rendered, and it is clear that the decision upholds the finding of the court of inquiry which was held at Portsmouth by the British admiralty immediately after the mishap because no court martial has followed. ; Briefly the court bases its conclusion upon the fact that the vessels were not on parallel courses, but rather on crossing courses, and that the Olympic was. the overtaking vessel. It is well to appeal the case, how- ever, that perhaps more practical minds may pass upon it, because the collision was needless and could readily have been avoided. For instance, it could have been avoided by the momentary slowing down of the cruiser, even if under a strict interpretation of the rules she was not required to slow down. The court accepted the suction theory which, of course, 1s not surprising to American navigators espe- cially the pilots of the great lakes, but it appears to be treated with contempt by experienced navigators abroad. Ane temper of the navigator towards the decision is very well expressed by a communication from a practical man recently published in one of the British papers, in which among other things he says ' As a practical man and an engineer who was ; - iit on the Olympic during a previous voyage eh, a Die acre at Bf about the same spot. in daylight, udiek cee --o Tae tke eon Tene ae has studied the iden I am amazed at what I consider Owe | sea sion arrived at by the Court of Paralty. that I am only conveying what* ninety-nine i Out of every ; ractica! minded men think on the subject fe ered practical: