Keywords: photo border Lot-2947-7: Shown is a bulk ore carrier, SS Frank Armstrong, loading high grade iron ore at Superior, Wisconsin. The ore slides down chutes from storage bins into the holds of the ship. Many chutes may operate at one time, loading thousands of tons of ore within a few hours. (Inset shows a close-up of the chutes.)) Grain is loaded in the same way. Bulk carriers, designed especially for Great Lakes transportation, must be narrow enough to get through the locks. Consequently, they must be long to provide space for tons of cargo. These carriers are longer than most oceangoing vessels. U.S. Marine Commission Photograph, 1946. Courtesy of the Library of Congress. (2016/07/01). Lot-2947-7: Shown is a bulk ore carrier, SS Frank Armstrong, loading high grade iron ore at Superior, Wisconsin. The ore slides down chutes from storage bins into the holds of the ship. Many chutes may operate at one time, loading thousands of tons of ore within a few hours. (Inset shows a close-up of the chutes.)) Grain is loaded in the same way. Bulk carriers, designed especially for Great Lakes transportation, must be narrow enough to get through the locks. Consequently, they must be long to provide space for tons of cargo. These carriers are longer than most oceangoing vessels. U.S. Marine Commission Photograph, 1946. Courtesy of the Library of Congress. (2016/07/01). |