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

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Example Sentences

See Examples For:

pug mill

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

From Diggers in the Earth by Eva March Tappan

This is done in some sort of pug mill.

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

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 Eva March Tappan

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 William Henry Doolittle

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