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The Metal Apron Saves a Torpedoed Ship
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Not a porch shade to keep out the sun, but a remarkable contrivance for keeping out the water after a vessel has been torpedoed. When a great hole is torn in a ship's hull, the metal apron carried on deck on a small wheeled carriage is unfolded like a carpet and lowered over the side. A flexible rubber or canvas pipe on the apron prevents the water from rushing in around the edges
