pug mill

noun

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

Word History and Origins

Origin of pug mill¹

First recorded in 1815–25

Example Sentences

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

From Project Gutenberg

In what is called the "soft-mud" process, the clay is pushed on by the pug mill to the end of the trough.

From Project Gutenberg

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

From Project Gutenberg

The first machine used to do all this work goes by the humble name of pug mill.

From Project Gutenberg

In some cases it has been found necessary to mix the ingredients in a pug-mill, as in mixing clay, &c. for bricks.

From Project Gutenberg