Galloway Boiler

Model of Galloway boiler, 1890, scale 1:12. This modification of the Lancashire boiler was patented by William and John Galloway in 1851

This represents in section a Lancashire boiler of the Galloway" type. Two furnaces 2.8 ft. diam. unite in one flattened tube 6 ft. wide and 2.75 ft. high, forming a combustion chamber which is the feature of the Galloway boiler. To give the necessary resistance to the collapsing pressure, thirty-three Galloway water tubes are introduced, the shape of the chamber enabling tubes to be used in which the flanges are perpendicular to the length. To deflect the hot gases amongst the tubes, four water pockets are inserted in the sides of the chamber.