Koper /ˈkoʊpər/- 1) a complex of mining equipment built on a mine shaft; designed for installing guide (copper) pulleys, for installing tilters on skips and tipping cleats, cliff installation devices, as well as for placing lifting machines. It is built of wood, metal and concrete (K. Tower). There are temporary (drilling) and permanent (operational) types.
2) A construction machine that installs and guides a pile hammer or vibratory driver, drives piles and dowels, lifts and corrects direction. There are electric, diesel and steam, simple and universal, rack-mounted and self-propelled