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

See Examples For:

pug mill

To prevent loss of air in open material, the joints between the boards were plastered with clay especially prepared for the purpose in a pug mill.

From Transactions of the American Society of Civil Engineers, vol. LXVIII, Sept. 1910 The New York Tunnel Extension of the Pennsylvania Railroad. The East River Tunnels. Paper No. 1159 by James H. Brace

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

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

From Inventions in the Century by William Henry Doolittle

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 Henry F. (Henry Flagg) French

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