TROUGH-LIKE COLLAR FOR THE UPPER EXTERNAL RIM OF FUEL RESERVOIRS FOR COOLING THEREOF

摘要

A trough-like collar (2) applied to the upper external rim of a fuel reservoir (1) for cooling thereof results from a plate member which is made to surround the top of the fuel reservoir (1) to form a ring. The plate member is riveted or welded at its lower portion to the reservoir wall and projects therefrom at its upper portion thus forming an empty space to be filled with water.