A tank transports molten metal to a casting ship.
Titles read: "HOT STUFF! Vacuum flasks are usually made for hot coffee etc. Here is one, however, built for molten metal."
Location of events unknown - United States of America?
Various shots of molten metal being poured into a large tank at some kind of foundry. Sparks fly from the red hot liquid.
Intertitle: "The "flask" is taken to the casting ship eleven miles away - the world's hottest trainload."
Shot of the tank being pulled along by a steam train. A sign on the engine reads 'The Hamilton Coke and Iron Company'. The train is seen pushing the tank over a bridge and into a shed.
Intertitle: "... and here it is - still molten and ready to cast."
Inside the shed the molten metal is poured from tank into a vat.