A portable engine used for small machines.
A direct-connected generating unit. A high-speed piston-valve engine driving a small alternator.
Section through a small, low pressure oil engine of the "hot-bulb" or "hot-ball" type.
Sectional elevation showing construction of the Ames-Stumph uniflow engine.
Cross-section of a steam engine plant with Alberger barometric condenser and cooling tower.
A high-speed simple engine belted to a small, three-phase generator.
Sectional elevation through the cylinder of a Skinner-poppet-valve uniflow engine.