pug mill

American  

noun

1. a mill for grinding and mixing materials, as clay or the ingredients of cement, to a desired condition.

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Etymology

Origin of pug mill

First recorded in 1815–25

Example Sentences

The pug mill has assumed many different forms in this age; and separate preliminary mills, consisting of rollers of different forms for grinding, alone are often used before the mixing operation.

From Inventions in the Century by Doolittle, William Henry

This is called "pugging," and the whole thing—trough, shaft, and knives—is a "pug mill."

From Diggers in the Earth by Tappan, Eva March

It is capable of turning out, by man power, about two hundred and fifty two-inch tiles in an hour, after the clay is prepared in a pug mill.

From Farm drainage The Principles, Processes, and Effects of Draining Land with Stones, Wood, Plows, and Open Ditches, and Especially with Tiles by French, Henry F. (Henry Flagg)

A pug mill is a machine consisting of a large cylinder with a central shaft passing through it from top to bottom.

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

This is done in some sort of pug mill.

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