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

When beam-engines were universally used for pumping, this parallel motion was of great advantage.

From James Watt by Carnegie, Andrew

Years later Watt told his son: "Though I am not over anxious after fame, yet I am more proud of the parallel motion than of any other mechanical invention I have ever made."

From Kinematics of Mechanisms from the Time of Watt by Ferguson, Eugene S.

It will be seen that the three slits can be closed or opened from the centre by a parallel motion.

From Colour Measurement and Mixture by Abney, W. de W.

This species of packing answers very well when the parallel motion is true, and the piston rod free from scratches, and it accomplishes a material saving of tallow.

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