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Three-inch A.A. cartridge cases. Brass discs are conveyed to a cupping press that forms them into the brass cups from which cartridge cases for three-inch antiaircraft shells are drawn. They look harmless enough but each one will be a potential headache for Axis fliers by the time it comes off the production line

Three-inch A.A. cartridge cases. Brass discs are conveyed to a cupping...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

A vacuum mechanism for inserting discs is an important unit in the machine setup of a converted cash register factory now producing 20mm fuses in enormous quantities

A vacuum mechanism for inserting discs is an important unit in the mac...

Public domain photograph of indoor, interior activity, America in the 1930s, free to use, no copyright restrictions image - Picryl description

Conversion. Beverage containers to aviation oxygen cylinders. The first step in the manufacture of high-altitude-flying shatterproof oxygen cylinders in the metal department of a large rubber factory is the forming or stamping of the shell. Stainless steel sheets are blanked or cut into discs(left foreground). Before stamping, these discs are drawn through rolls where a drawing compound is added to both sides to facilitate the forming of the shell. The 750-ton toggle press, shown above, forms a half cylinder in one powerful stroke. Once the half cylinder is formed, it is trimmed and the value-fitting hole is punched into the spherical dome. A cleaning operation later removes the drawing compound. The cylinder halves are now ready for the various welding operations. Firestone, Akron, Ohio

Conversion. Beverage containers to aviation oxygen cylinders. The firs...

Actual size of negative is C (approximately 4 x 5 inches). Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944... More

Conversion. Beverage containers to aviation oxygen cylinders. The first step in the manufacture of high-altitude-flying shatterproof oxygen cylinders in the metal department of a large rubber factory is the forming or stamping of the shell. Stainless steel sheets are blanked or cut into discs(left foreground). Before stamping, these discs are drawn through rolls where a drawing compound is added to both sides to facilitate the forming of the shell. The 750-ton toggle press, shown above, forms a half cylinder in one powerful stroke. Once the half cylinder is formed, it is trimmed and the value-fitting hole is punched into the spherical dome. A cleaning operation later removes the drawing compound. The cylinder halves are now ready for the various welding operations. Firestone, Akron, Ohio

Conversion. Beverage containers to aviation oxygen cylinders. The firs...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.

Chickamauga Dam and powerhouse. View of generator hall, looking towards reception room end. Upper row of three large windows is overlook for reception room. Three windows beneath are those of control room (compare with K 2313). Balcony for communication and view in front of control room windows. Roof is carried by rigid steel arches which spring from crane rail level; steel purlins, exposed precast concrete slab. Windows of hall are glass brick for insulation. Translucent plastic discs suspended from standard highboy lighting units conceal view or direct reflection of filaments and reflect spill light onto ceiling, thus generally brightening the space. Floor is ceramic tile; walls, glazed structural tile up to crame rail, exposed concrete above

Chickamauga Dam and powerhouse. View of generator hall, looking toward...

The Chickamauga Dam is a hydroelectric dam on the Tennessee River in Chattanooga, Tennessee. It is one of nine dams in the Tennessee Valley Authority (TVA) system, and was completed in 1940. The dam is named af... More

Three-inch A.A. cartridge cases. The art of metal drawing is employed to turn brass discs punched from rolled sheets into long tubular cartridge case to carry the powder charges that send explosive shells up to meet enemy aircraft. The first operation is performed by a press which forms the flat disc into cups

Three-inch A.A. cartridge cases. The art of metal drawing is employed ...

Picryl description: Public domain image of an industrial building, factory, workshop, workers, 20th century, free to use, no copyright restrictions.

Shaping the tire with "saucers." Spinning discs which are delicately controlled by movable arms smooth out each layer of fabric as it is added to the growing carcass, and curves around the sidewall and bead with considerable pressure. In the center foreground, one of these saucers may be seen as this tire builder maneuvers it around the sharp corner of the tire drum. In the right foreground two others pull across from the center to the edges to smooth out each layer. Firestone (General Tires), Akron, Ohio

Shaping the tire with "saucers." Spinning discs which are delicately c...

Picryl description: Public domain image of a factory worker, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions. show less

Conversion. Beverage containers to aviation oxygen cylinders. The first step in the manufacture of high-altitude-flying shatterproof oxygen cylinders in the metal department of a large rubber factory is the forming or stamping of the shell. Stainless steel sheets are blanked or cut into discs(left foreground). Before stamping, these discs are drawn through rolls where a drawing compound is added to both sides to facilitate the forming of the shell. The 750-ton toggle press, shown above, forms a half cylinder in one powerful stroke. Once the half cylinder is formed, it is trimmed and the value-fitting hole is punched into the spherical dome. A cleaning operation later removes the drawing compound. The cylinder halves are now ready for the various welding operations. Firestone, Akron, Ohio

Conversion. Beverage containers to aviation oxygen cylinders. The firs...

Actual size of negative is C (approximately 4 x 5 inches). Caption card lists some of the printing history of image. Title and other information from caption card. Transfer; United States. Office of War Informa... More

Three-inch A.A. cartridge cases. Cartridge cases for three-inch antiaircraft shells are drawn from brass cups which are themselves formed from flat discs. After they come from the cupping press they are washed to provide clean surfaces for future operations and are conveyed in basket trucks to annealing furnaces. Annealing will remove any strains set up in the metal by the cupping press operations

Three-inch A.A. cartridge cases. Cartridge cases for three-inch antiai...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

Virginia Ludwig goes to work on a punch press, stamping out discs from steel strips. Her well-fitting uniform is devoid of unnecessary pleats, trimmings, doodads--is just right for the job

Virginia Ludwig goes to work on a punch press, stamping out discs from...

Public domain photograph of 1930s-1940s US industrial development, Second World War, US war production, indusry, no copyright restrictions image - Picryl description

Conversion. Beverage containers to aviation oxygen cylinders. The first step in the manufacture of high-altitude-flying shatterproof oxygen cylinders in the metal department of a large rubber factory is the forming or stamping of the shell. Stainless steel sheets are blanked or cut into discs(left foreground). Before stamping, these discs are drawn through rolls where a drawing compound is added to both sides to facilitate the forming of the shell. The 750-ton toggle press, shown above, forms a half cylinder in one powerful stroke. Once the half cylinder is formed, it is trimmed and the value-fitting hole is punched into the spherical dome. A cleaning operation later removes the drawing compound. The cylinder halves are now ready for the various welding operations. Firestone, Akron, Ohio

Conversion. Beverage containers to aviation oxygen cylinders. The firs...

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Chickamauga Dam and powerhouse. View of generator hall, looking towards reception room end. Upper row of three large windows is overlook for reception room. Three windows beneath are those of control room (compare with K 2313). Balcony for communication and view in front of control room windows. Roof is carried by rigid steel arches which spring from crane rail level; steel purlins, exposed precast concrete slab. Windows of hall are glass brick for insulation. Translucent plastic discs suspended from standard highboy lighting units conceal view or direct reflection of filaments and reflect spill light onto ceiling, thus generally brightening the space. Floor is ceramic tile; walls, glazed structural tile up to crame rail, exposed concrete above

Chickamauga Dam and powerhouse. View of generator hall, looking toward...

The Chickamauga Dam is a hydroelectric dam on the Tennessee River in Chattanooga, Tennessee. It is one of nine dams in the Tennessee Valley Authority (TVA) system, and was completed in 1940. The dam is named af... More