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parallel motion

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noun

a mechanism arranged so as to impart rectilinear motion to a rod connected to a lever that moves through an arc.

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Origin of parallel motion

First recorded in 1820–30

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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