tappet

American  

[tap-it] / ˈtæp ɪt /

noun

Machinery.

1. a sliding rod, intermittently struck by a cam, for moving another part, as a valve.

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tappet British  

/ ˈtæpɪt /

noun

1. a mechanical part that reciprocates to receive or transmit intermittent motion, esp the part of an internal-combustion engine that transmits motion from the camshaft to the push rods or valves

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Etymology

Origin of tappet

First recorded in 1735–45; tap ¹ + -et

Example Sentences

At the same time, the tappet, 3, by moving the arm, s, downward, opens the steam-valve, e, and the exhaust-valve, c.

From A History of the Growth of the Steam-Engine by Thurston, Robert H.

Each stamp has a tappet at the back, which requires to be daubed with grease on the lower side that it can be raised more easily.

From De Re Metallica, Translated from the First Latin Edition of 1556 by Agricola, Georgius

Exhausts opened and closed by spring on tappet.

From Jane's All the World's Aircraft 1913 by Various

As soon as the winch, K, is revolved, whatever be the direction of the motion, the axle can only be carried along when the tappet, n, has come to occupy the position shown in Fig.

From Scientific American Supplement, No. 492, June 6, 1885 by Various

A tappet on the bell of an equalising gasholder depresses a lever which causes water to flow into a funnel, the outlet of which leads to a generating chamber containing carbide.

From Acetylene, the Principles of Its Generation and Use A Practical Handbook on the Production, Purification, and Subsequent Treatment of Acetylene for the Development of Light, Heat, and Power by Leeds, F. H. (Frank Henley)