Later designs introduced horizontal boilers, slanted so they remain close to horizontal on the steeply graded track.

These were horizontal, cylindrical boilers with a single internal fire tube or flue passing horizontally through the middle.

Abdela preferred to use horizontal boilers for vessels of this size.

Thirty-nine Wilkinson type trams were delivered before Green's developed their own design using a horizontal boiler, inclined cylinders and Joy valve gear.

A launch-type, gunboat or horizontal multitubular boiler is a form of small steam boiler.

In 1912, Akashi was re-boilered, with her nine horizontal locomotive-style boilers replaced with nine Niclausse boilers.

This had a horizontal boiler but the cylinders were vertical and drove the front wheels through bell cranks.

To this end he developed a long cylindrical wrought iron horizontal boiler into which was incorporated a single fire tube, at one end of which was placed the fire grate.

Certain designs of steam roller departed from the conventional traction engine style of a horizontal boiler with an engine mounted above.

In the 1950s, Faema began with horizontal boiler, lever piston machines, which were typical of the time.