Invention and Engineering

J. George Leyner

J. George Leyner (1860–1920) was a machinist who invented mining equipment that enhanced safe mining operations while also improving efficiency. He held a significant number of United States patents and established his own equipment manufacturing companies. In particular, he invented a drill that used water to suppress generation of airborne particles during mining, thereby reducing the risk of miners' developing silicosis. The device later became known as the Leyner drill.

Also on this shelf

See also

• ▸Dynamic random-access memory
• ▸Columnar jointing
• ▸Corrugated fiberboard

Uncatalogued shelf

Text from Wikipedia; plate via Wikimedia Commons. Text CC BY-SA 4.0; plate freely licensed (see Commons). Source record. Images and catalogue data are reproduced from open-access collections.