- a mechanism arranged so as to impart rectilinear motion to a rod connected to a lever that moves through an arc.
Origin of parallel motion
Examples from the Web for parallel motion
Historical Examples of parallel motion
This form was objectionable, as the whole effort of the engine was transmitted through the parallel-motion rods.A History of the Growth of the Steam-Engine
Robert H. Thurston
I contrived a sectional model of a complete condensing steam-engine of the beam and parallel-motion construction.Stories of Invention
Edward E. Hale