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1940 s

library of congress

conversion

40 s

aviation

factory

industrial history

press

safety film negatives

1940s

toggle

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Conversion. Automobile plant. Preparing to swing back and clear the long toggle arm of a huge 90T96 Cleveland press so the large connecting rod can be brought in place under the crankshaft. The 120-ton machine will perform a major operation on hood panels for 4 x 4 army trucks. It was moved piece by piece from another plant that is being completely dismantled for conversion to other war productions. Chevrolet Motors, Detroit, Michigan

Conversion. Automobile plant. Preparing to swing back and clear the lo...

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

Conversion. Automobile plant. New Alemite fitting is added to a toggle arm bearing of a big 90T96 Cleveland press before the machine is reassembled in another building of an important automobile factory. The building that formerly housed the press is entirely cleared for the manufacture of an entirely different war product. Chevrolet Motors, Detroit, Michigan

Conversion. Automobile plant. New Alemite fitting is added to a toggle...

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

A strange adventure of farmer Toggle and his goat / Palmer Cox.

A strange adventure of farmer Toggle and his goat / Palmer Cox.

Twenty-four panel illustration showing farmer Toggle purchasing a goat and tying it up outside a beer saloon. The goat escapes and harasses a young girl, a policeman, an elderly woman and others. Farmer Toggle ... More

Conversion. Automobile plant. Toggle arm bearings of a big 90T96 Cleveland press are checked before the machine is reassembled for production of army truck parts in another building of an important automobile factory. The building that formerly housed the press is being entirely cleared for the manufacture of an entirely different war product. Chevrolet Motors, Detroit, Michigan

Conversion. Automobile plant. Toggle arm bearings of a big 90T96 Cleve...

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

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.

Production. Airplane manufacture, general. Sheet metal parts for United Nations war planes are best treated in great ovens as quickly as they are formed on the hydraulic and toggle presses at the Inglewood, California plant of North American Aviation, Incorporated. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe

Production. Airplane manufacture, general. Sheet metal parts for Unite...

Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.

Conversion. Beverage containers to aviation oxygen cylinders. After they are stamped on the huge toggle press in the metal division of a large rubber factory, these cylindrical domes which make up half of a shatterproof oxygen cylinder, are placed on a large conveyor where they are carried to workmen who will apply the circumferential and longitudinal straps. Cylinders are used for high altitude flying as a source of oxygen. Firestone, Akron, Ohio

Conversion. Beverage containers to aviation oxygen cylinders. After th...

Public domain photograph of 1930s industry, war production in the United States 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...

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.

Production. Airplane manufacture, general. Three shifts of girl operators keep this huge toggle press producing plane parts in the Inglewood, California plant of North American Aviation Incorporated. The young woman is removing one of the thousands of sheet metal parts for United Nations war planes. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe

Production. Airplane manufacture, general. Three shifts of girl operat...

Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.