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

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

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

In some the pug mill is arranged horizontally to feed out the clay in the form of a long horizontal slab, which is cut up into proper lengths to form the bricks.

From Inventions in the Century by Doolittle, William Henry

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

From Diggers in the Earth by Tappan, Eva March