parallel motion

American  

noun

1. 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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Etymology

Origin of parallel motion

First recorded in 1820–30

Example Sentences

At times, sound and image achieve an exhilarating synchronicity, as when stripes are hurtling across the screen and Reich’s instruments are racing in parallel motion.

From The New Yorker • May 20, 2019

I use the term direct acting, because I dispensed with the beam and parallel motion, which was generally considered the correct mode of transferring the action of the piston to the crank.

From James Nasmyth: Engineer; an autobiography by Smiles, Samuel

It will be seen that the system is somewhat similar to the parallel motion when in action.

From Scientific American Supplement, No. 601, July 9, 1887 by Various

Q.--How do you ascertain the accuracy of the parallel motion?

From A Catechism of the Steam Engine by Bourne, John, C.E.

Second, the governor weights move outward on a parallel motion opposed directly by spring thrust, thus relieving the fulcrum entirely of spring thrust.

From Steam Turbines A Book of Instruction for the Adjustment and Operation of the Principal Types of this Class of Prime Movers by Collins, Hubert E. (Hubert Edwin)