steam engine : Idioms & Phrases
Back-acting , ∨ Back-action , steam engine
- a steam engine in which the motion is transmitted backward from the crosshead to a crank which is between the crosshead and the cylinder, or beyond the cylinder.
Webster 1913
Portable steam engine
- a steam engine combined with, and attached to, a boiler which is mounted on wheels so as to admit of easy transportation; used for driving machinery in the field, as trashing machines, draining pumps, etc.
Webster 1913
Semiportable steam engine
- a steam engine combined with, and attached to, a steam boiler, but not mounted on wheels.
