tipper

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tipper

[′tip·ər]
(mining engineering)
An apparatus for emptying coal or ore cars by turning them upside down and then righting them, with a minimum of manual labor.
References in periodicals archive ?
The company said there has been a lot of interest in the sales and key items entered in the auction already include several tipper lorries, a range of tractors and arable equipment including a Case 1000 MS sprayer, Vaderstaad ten folding meter roller, and a Major 800 topper.
Tipper lorries will reach the site by travelling through Grappenhall, Stockton Heath, Appleton and Woolston.
The massive bright yellow pick-up pays homage to the familiar tipper lorries that captivated the imagination of generations of children.