On page 67, Fig. 26, is exhibited a steam boiler with inclined tubes.
The setting in this style of boilers is as follows:
A brick wall is laid for the front with suitable openings for the doors
of the furnace and ash pit, and protected on the outside by a front of
cast iron, and on the inside by a lining of fire brick.
At the back of the grates a bridge wall is run up to the bottom of the
inclined water tubes, so that the hot gases that arise over it must
circulate among the tubes.
A counter wall is laid on an incline from the top of the tubes to the
back of the drum. This is laid on perforated plates or bars and is
covered with fire brick. A wall is also built at the lower and back end
of the tubes to carry them.
Back of the whole is the outer wall with openings for giving access
to the tubes and smoke chambers. Side walls are raised to enclose the
same and are arched at the top to come nearly in contact with the drum,
which is carried partly by brackets and partly by the connections to
the tubes.