Refine Your Search

Baltimore Maryland USA 1958 stock footage and images

- Showing 4441 to 4446 of 25435 results
Horizontal cut and fill method of copper mining in Jerome, Arizona

Smoke rises from burning stopes at a copper mine in Jerome, Arizona. Copper ore is mined by the horizontal cut and fill method. Miners shovel broken ore onto chutes running through plank floor in a stope. Cribs are built above ore chutes in the floor. Waste ore is drawn through a chute car and is dumped in the open stope to fill the stope.

Location: Jerome Arizona USA
Date: 1927
Duration: 2 min 16 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675030427
Mine tunnel is used for transportation at a copper mine in Jerome, Arizona

Mine workers arrive at a shaft in cars through a tunnel in copper mine in Jerome, Arizona. Trains of railroad cars enter the mine through a tunnel leading to the underground shaft.

Location: Jerome Arizona USA
Date: 1927
Duration: 1 min 16 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675030428
Wet drilling technique implemented to drill a stope inside a copper mine in Butte, Montana.

A mine worker wet-drilling at a stope of a copper mine in Butte, Montana. Water is sprayed from drills onto stope walls that makes sludge of the cutting and prevents dust.

Location: Butte Montana USA
Date: 1927
Duration: 45 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675030431
Square set timbering shown in a copper mine

Square Set Timbering is seen inside a stope at a copper mine in Butte, Montana. Timber logs provide a support to the soft and broken rock adjoining the veins of the ore. Mine workers drill inside a stope. Timber placed in square set fashion can be seen.

Location: Butte Montana USA
Date: 1927
Duration: 39 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675030432
American women workers punch mica into strips and washers.

Describes raw materials used in telephone manufacturing. The map of India is shown. Women workers in America punch mica into strips and washers that insulates a telephone's transmitter. Animation shows the use of mica inside a telephone's transmitter.

Location: United States USA
Date: 1928
Duration: 1 min 5 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675030434
Cotton is picked and bailed in United States.

Describes raw materials used in telephone manufacturing. Women pick cotton at a cotton farm in United States. Bales of cotton taken on hand carts. Animation shows the use of cotton thread inside a telephone's transmitter.

Location: United States USA
Date: 1928
Duration: 1 min 14 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675030435
<< Previous | Page: 1 ... 741 742 743 ... 4240 | Next >>