Refine Your Search

Baltimore Maryland USA 1958 stock footage and images

- Showing 15343 to 15348 of 25435 results
Manufacture of gelatin dynamite and its packaging for use in the United States.

A film on manufacture of dynamite in the United States. Gelatin dynamite is manufactured. Nitroglycerin is first run into a bronze bowl equipped with paddles for the manufacture of gelatin dynamite. Men working inside a factory. Then nitrocotton is added. When this mixture is stirred, nitroglycerin is gelatinized by nitrocotton. This gives the explosive its plasticity and water-resisting power. Other dry ingredients are added and mixing continues. Men remove the finished gelatin with wooden scoops to eliminate the possibility of striking a spark from the metal. It is fed on a belt to a gelatin cartridging machine. It is packed into paper shells. Certain types of dynamite are dipped in metal paraffin for additional waterproofing. The dynamite is packed.

Location: United States USA
Date: 1925
Duration: 2 min 32 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675076917
Buildings and area comprising of a dynamite plant in the United States.

A film on manufacture of dynamite in the United States. A dynamite plant. Safety area includes administration buildings and non-hazardous operations. A high altitude view of the area.

Location: United States USA
Date: 1925
Duration: 1 min 36 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675076918
Testing of dynamite in a laboratory in the United States.

A film on manufacture of dynamite in the United States. Laboratories for testing and research of dynamite. A chemist working in a laboratory. He tests every ingredient and every finished lot of material. Tests for sensitiveness and velocity are conducted. For conducting a test, gaseous and dusty conditions similar to those found in some coal mines are created. Explosives are fired in it to make sure that they will not ignite gas or dust before they are sent to the U.S. Bureau of Mines for approval as permissible explosives.

Location: United States USA
Date: 1925
Duration: 2 min 43 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675076919
Packing of dynamite for shipment to several places in the United States.

A film on manufacture of dynamite in the United States. The packing of dynamite. Men packing the dynamite for shipment. Boxes should be tightly packed to prevent shifting or breaking in transit. Specially constructed trucks carry dynamite. A driver boards a truck.

Location: United States USA
Date: 1925
Duration: 48 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675076920
A miner working to prepare a shot with permissibles in a Pennsylvania coal mine in the United States.

A film on uses of dynamite in the United States. The preparation of a shot with permissibles in a Pennsylvania coal mine. A miner working inside the mine. A good grade of lump coal is brought down.

Location: United States USA
Date: 1925
Duration: 41 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675076921
Smoke rises as dynamites explode in an area in the United States.

A film on use of dynamite in the United States. Stone for railroad ballast, buildings and highway operations is quarried by explosives. Smoke from explosions. Men working and drilling holes behind the quarry face. Men cutting large cartridges to facilitate loading activities. Smoke rising due to explosions of dynamites.

Location: United States USA
Date: 1925
Duration: 2 min 2 sec
Sound: No
Color: Monochrome
Clip Type: Edited
Language: English
Clip: 65675076923
<< Previous | Page: 1 ... 2558 2559 2560 ... 4240 | Next >>