Model of a Vertical Tubular Boiler

Model of Half of a Vertical Boiler. There Are Two Fireboxes at the Bottom; From There, Flames Are Led Through a Number of Pipes via the Flue Chambers to a Vertical Shaft, Where a Grate (Missing) with a Coke Fire Belongs at the Bottom. Below This Grate Is the Space Connected to the Chimney. Water and Steam Are Distributed Over a Number of Interconnected Spaces and the Dome-Shaped Steam Cap at the Top. There Are Two Doors to the Fireboxes, Two to the Flue Chambers Above, and One to the Shaft.