
This book provides an in-depth study of the engineering technology used in the mining industry in the early 20th century. The author explores the mechanical structures of collieries, different machines used in mining, and the process of extracting coal from the mines. This...

This book provides an in-depth study of the engineering technology used in the mining industry in the early 20th century. The author explores the mechanical structures of collieries, different machines used in mining, and the process of extracting coal from the mines. This...
