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united states history

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1940 s

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aviation

aviation oxygen cylinders

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Langdon Tent and Awning Company, Wichita, Kansas. Bales of "pup" tents ready for shipment to the Army Quartermaster Corps supply depots. Each bale holds forty-eight tents which are made in two halves to lighten the pack load of the soldier in the field. Two soldiers join their half tents to form a two-man shelter

Langdon Tent and Awning Company, Wichita, Kansas. Bales of "pup" tents...

Public domain photograph of 1930s America, free to use, no copyright restrictions image - Picryl description

Spectators at refreshment stand during the halves of the Duke University-North Carolina football game. Durham, North Carolina

Spectators at refreshment stand during the halves of the Duke Universi...

Public domain photograph - historical image of North Carolina, United States, free to use, no copyright restrictions image - Picryl description

Why shouldn't he love It? Edgar D. Lovett, President of Rice, left, and Jesse Jones, Chairman of RFC, photographed between halves at the Rice- George Washington University game here Saturday. Rice won 41 to 0. Jesse Jones, with or without the helmet, is famous son of Texas. 11/2/35

Why shouldn't he love It? Edgar D. Lovett, President of Rice, left, an...

A group of men standing next to each other holding a football. Public domain portrait photograph, 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 an industrial building, factory, workshop, workers, 19th-20th century, free to use, no copyright restrictions.

Production. Milling machines and machine castings. After losing their cores and being sand-blasted, castings go to the cleaning floor. This workman was using a pneumatic chipping hammer which with rapid-fire, chisel-like strokes trims rough edges and cuts off the uneven, jagged strips where the two halves of the mold join. Location: a large Midwest machine tool plant

Production. Milling machines and machine castings. After losing their ...

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.

Conversion. Beverage containers to aviation oxygen cylinders. Before completion of the fourth and final welding operation in the manufacture of shatterproof oxygen cylinders for high altitude flying, all straps are subjected to physical tests to determine the strength of the weld. Occasional radiographic inspections are made to insure the quality of workmanship and materials after the atomic welding machine has brought the two halves of the cylinder together and made into one unit. The operator, looking through a specially designed dark safety glass, rotates the shell by sight to insure a perfect and uniform union of the two halves. Firestone, Akron, Ohio

Conversion. Beverage containers to aviation oxygen cylinders. Before c...

Public domain photograph - historical image of Ohio, United States, free to use, no copyright restrictions image - Picryl description

Spectator drinking between the halves of the Duke University-North Carolina football game, Durham, North Carolina

Spectator drinking between the halves of the Duke University-North Car...

Public domain photograph - historical image of North Carolina, United States, free to use, no copyright restrictions image - Picryl description

This photograph shows how the two halves of a trailer house, delivered individually, are assembled by simply rolling them together on previously prepared foundations which consist of a few posts driven into the ground connected by planks upon which the house halves roll by means of small wooden wheels. Each half is light enough to be towed behind a 3/4 ton truck or passenger car. They come fully equipped with all essential furniture and equipment, either built-in or stored inside during transport. They are connected to each other by a few bolts, while the roof sections meet in ridges over which a common cap is laid. The whole operation may take between one and three hours, including connection to previously prepared utilities. The section or halves measure 26' x 7'9," thus permitting highway transportation without special permits. Any number of sections can be combined. Two- and three-bedroom houses. Recreation buildings, bath houses, and even very large barracks, have been constructed by TVA (Tennessee Valley Authority) on the same general plans but using more sections

This photograph shows how the two halves of a trailer house, delivered...

Public domain photograph of cabinet, furniture, free to use, no copyright restrictions image - Picryl description

Conversion. Beverage containers to aviation oxygen cylinders. Before completion of the fourth and final welding operation in the manufacture of shatterproof oxygen cylinders for high altitude flying, all straps are subjected to physical tests to determine the strength of the weld. Occasional radiographic inspections are made to insure the quality of workmanship after the two halves of the cylinder are brought together in this atomic welding machine and made one unit. Here, the operator has just completed the union and is about to remove the whole cylinder. Firestone, Akron, Ohio

Conversion. Beverage containers to aviation oxygen cylinders. Before c...

Picryl description: Public domain image of workers, labor, 1940s, economic conditions, free to use, no copyright restrictions.

Storage of rough stock at the Packard marine engine plant, Detroit, Michigan. Photo shows, in foreground, the upper and lower halves of aluminum crankcases. Stacked in the background are stainless steel cylinder water jackets

Storage of rough stock at the Packard marine engine plant, Detroit, Mi...

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

The Susquehanna Canal lottery. Positively to commence drawing on the 26th of next month (August) ... two prizes of 20,000 dollars each, and six floating capital prizes. Tickets, halves quarters & eights for sale at Robinson's State lottery-offic

The Susquehanna Canal lottery. Positively to commence drawing on the 2...

Production. B-17F heavy bombers. Overall view of a conveyor assembly line at the Long Beach, California, plant of Douglas Aircraft Company, showing B-17F fuselages going through and, at right, sectional fuselage jigs in which fuselage halves are assembled from prefabricated parts. Better known as the "Flying Fortress," the B-17F is a later model B-17, which distinguished itself in action in the South Pacific, over Germany and elsewhere. It is a long range, high altitude, heavy bomber with a crew of seven to nine men and with armament sufficient to defend itself on daylight missions

Production. B-17F heavy bombers. Overall view of a conveyor assembly l...

Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - 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.