Maritime History of the Great Lakes

Marine Review (Cleveland, OH), February 1918, Advertising, p. 45

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Wonace & WILKINS OM S. S. Horace S. Wilkinson built on the ISHERWOOD SYSTEM by the Toledo Shipbuilding Co. Added length without increase of beam has increased the cargo carrying capacity without materially increasing weight of Hull. The Isherwood System has enabled shipbuilding con- cerns, the world over, to break all records in construc- tion, thus rapidly making up the universal ship shortage. The Isherwood System requires less steel. 26 cargo steamers can be constructed from the same material ‘that was formerly used for 24 vessels constructed on the transverse system. Furthermore, the Isherwood System provides additional Also, it allows ad- ditional length without increasing beam—a feature deadweight carrying capacity. that permits bigger tonnage for lake carriers going to the Atlantic seaboard or vice versa. The secret is in the greater longitudinal strength of this system over the transverse construction. Collision damage is reduced to a minimum; and the Isherwood System permits greater facilities for mak- ing repairs quickly and effectively. At present there are 800 vessels built and under con- struction aggregating over 6,000,000 tons carrying capacity which includes over 200 (representing about 1,500,000 tons) building in the U. S. A., and 310 bulk oil carriers carrying 2,800,000 tons. Below are shown wing tanks on the two systems—on the right is the Isherwood system. Note the rigidity, lightness and spaciousness of this construction. Write for particulars. J. VW. ISHERW OOD 17 BATTERY PLACE Phone Rector 6838 THE OLD WAY NEW YORK CITY Head Office, 4 Lloyds Ave., London, E. C. THE ISHERWOOD SYSTEM WA ei AAAI

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