The Story of Lead Mining and Milling, silent film
Автор: Period Six Outdoors
Загружено: 2017-07-26
Просмотров: 771
Описание:
The Story of Lead Mining and Milling, silent film from the national archives.
Reel 1 shows mining operations in Southeast Missouri after diamond drills have located a lead vein. Reel 2, trains carry ore through tunnels to rotary dumps from which it is raised directly to the mill. Ore is crushed and sorted. Reel 3 shows sorting by gravitation and flotation processes. Coal for fuel is delivered by ferries. Shows the dairy, school, hospital, and offices of the St. Joseph Lead Co.
Повторяем попытку...
Доступные форматы для скачивания:
Скачать видео
-
Информация по загрузке: