The Story of Copper - Mining R2 of 5
Title: The simplest form of copper mining is quarrying of a hillside. Sacramento Hill at Bisbee, Arizona before mining...” Brief shot down on valley. “Here it is now.” Buildings & open pit excavation.
22:55:05 Title: “At Ruth, Nevada - A large body of low-grade ore...” View of open pit w/ railroad tracks around the tiers. Steam engines pushing cars.
22:56:01 Title: “This pit is 400 feet deep...” Pan across. Large churn drill; pulling mud core, lower drill.
22:56:58 Title: “A three-hundred ton shovel...” Loading railroad cars. CU; MS five men wave from in shovel bucket, climb out.
22:57:31 Title: “At Jerome, Arizona...” Large open pit; sides showing exposed timbers from earlier mine. Blasting pit walls for loose rock.
22:58:43 Title: “Years ago sulphide ore caught fire in the mine...” Shovel loading large truck; hauilng to chute & side dumping.
22:59:40 Title: “Underground mining is usually more costly...called shrinkage stop... Returning to Alaska...at Kennecott” Pan over valley w/ large mine on hillside; glacier above & housing along valley floor. Inner title explaining “stope” mining.
23:01:25 Large cavern w/ three men silhouetted.
23:01:43 Title: “Holes for the dynamite charge are made in the ore w/ air drills.” Two men working in stope. Drilling into wall; drilling to break large fallen rocks. Chutes dumping ore into car & pushed out by hand.
23:03:04 Motorized train w/ cars out of mine tunnel & loaded w/ small rocks from chute.
23:03:40 Title: “The ore is hoisted in skips...” Men running cables for elevators w/ large levers. Cables pulling skips up rails. View from top w/ car out & dumped.
23:04:38 Title: “Much of the ore mined in Alaska assays about 60% copper... Man sorting on conveyor. Train moving cars of rocks & dumping into underground chutes.
23:05:43 Title: “Tramway buckets are loaded... Man moves bucket on tram & fills, pulls & sends on way to cross valley to mill.
23:07:09 Title: “The tramway delivers the ore to the mill...” View from bucket down to mill buildings. Mill from railroad beneath.
23:08:07 Int. of mine shaft w/ frost crystals
1928 ca; 1920s; Industrial Processes; Heavy Industry; Promotional Film;
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The Story of Copper - Mining R2 of 5 Title: The simplest form of copper mining is quarrying of a hillside. Sacramento Hill at Bisbee, Arizona before mining...” Brief shot down on valley. “Here it is now.” Buildings & open pit excavation. 22:55:05 Title: “At Ruth, Nevada - A large body of low-grade ore...” View of open pit w/ railroad tracks around the tiers. Steam engines pushing cars. 22:56:01 Title: “This pit is 400 feet deep...” Pan across. Large churn drill; pulling mud core, lower drill. 22:56:58 Title: “A three-hundred ton shovel...” Loading railroad cars. CU; MS five men wave from in shovel bucket, climb out. 22:57:31 Title: “At Jerome, Arizona...” Large open pit; sides showing exposed timbers from earlier mine. Blasting pit walls for loose rock. 22:58:43 Title: “Years ago sulphide ore caught fire in the mine...” Shovel loading large truck; hauilng to chute & side dumping. 22:59:40 Title: “Underground mining is usually more costly...called shrinkage stop... Returning to Alaska...at Kennecott” Pan over valley w/ large mine on hillside; glacier above & housing along valley floor. Inner title explaining “stope” mining. 23:01:25 Large cavern w/ three men silhouetted. 23:01:43 Title: “Holes for the dynamite charge are made in the ore w/ air drills.” Two men working in stope. Drilling into wall; drilling to break large fallen rocks. Chutes dumping ore into car & pushed out by hand. 23:03:04 Motorized train w/ cars out of mine tunnel & loaded w/ small rocks from chute. 23:03:40 Title: “The ore is hoisted in skips...” Men running cables for elevators w/ large levers. Cables pulling skips up rails. View from top w/ car out & dumped. 23:04:38 Title: “Much of the ore mined in Alaska assays about 60% copper... Man sorting on conveyor. Train moving cars of rocks & dumping into underground chutes. 23:05:43 Title: “Tramway buckets are loaded... Man moves bucket on tram & fills, pulls & sends on way to cross valley to mill. 23:07:09 Title: “The tramway delivers the ore to the mill...” View from bucket down to mill buildings. Mill from railroad beneath. 23:08:07 Int. of mine shaft w/ frost crystals 1928 ca; 1920s; Industrial Processes; Heavy Industry; Promotional Film;