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1940 s

1940s

40s

united states history

airfields

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army camps

conduits

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Editors (Kiplinger) Building. Ventilation conduits in Editors (Kiplinger) Building

Editors (Kiplinger) Building. Ventilation conduits in Editors (Kipling...

Public domain photograph of midcentury American office architecture, free to use, no copyright restrictions image - Picryl description

Water is stored in large reservoirs on the Logan River and is then delivered by conduits such as is seen in the lower left to the hydroelectric plants. Cache Ccounty, Utah

Water is stored in large reservoirs on the Logan River and is then del...

Picryl description: Public domain image of a park, trees, outdoors, free to use, no copyright restrictions.

Copy of plan of Palestine water conduits (copied for A.H. Ross, Esq. Nom de plume Fran Morrison

Copy of plan of Palestine water conduits (copied for A.H. Ross, Esq. N...

Public domain scan of an 18th-century map, vintage, old, free to use, no copyright restrictions - Picryl description.

Bethlehem Fairfield shipyards, near Baltimore, Maryland. Construction of a Liberty ship. On the fourteenth day the upper deck has been erected and mast houses and the after-deck house are in place. Electrical conduits and engine and boiler room piping are being installed

Bethlehem Fairfield shipyards, near Baltimore, Maryland. Construction ...

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

Production. Airplane manufacture, general. In the Inglewood, California, receiving department of North American Aviation, Incorporated, Flexible tubing is unpacked and delivered to the proper department. This tubing will be used as conduits for electrical control cables. 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. In the Inglewood, Californi...

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

Substitute materials. Interior view of two-foot section of built-up wooden pipe, twenty-four inches in diameter. These pipes, used in place of corrugated iron or reinforced concrete pipes, are made of sections cut from short lengths of wood. About 100,000 feet of these wooden pipes were installed in 1942 in drainage culverts, storm sewers and conduits under highways and at army camps, naval stations, airfields and ordnance plants

Substitute materials. Interior view of two-foot section of built-up wo...

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

Substitute materials. A shipment of 1,488 feet of 18-inch, 24-inch, 30-inch and 36-inch wooden pipe on one flat car. Weight 70,020 pounds. An equal footage of reinforced concrete pipe weighs 455,412 pounds, requires over ten cars. These pipes, used in place of corrugated iron or reinforced concrete pipes, are made of sections cut from short lengths of wood. Locking of adjacent rings with hardwood dowel pins produces a flexible structure. About 100,000 feet of these wooden pipes were installed in 1942 in drainage culverts, storm sewers and conduits, under highways and at army camps, naval stations, airfields and ordnance plants

Substitute materials. A shipment of 1,488 feet of 18-inch, 24-inch, 30...

Public domain photograph of train station, free to use, no copyright restrictions image - Picryl description

Conduits under the highway to carry off flood waters, thus protecting the highway. U.S. 60, Navajo County, Arizona

Conduits under the highway to carry off flood waters, thus protecting ...

Public domain photograph of the United States military and military-industrial complex before World War Two, 1930s, free to use, no copyright restrictions image - Picryl description

Substitute materials. Wood culverts for steel. Assembly of an emergency sectional wood pipe, twenty-four inches in diameter. These pipes, used in place of corrugated iron or reinforced concrete pipes, are made of sections cut from short lengths of wood. Locking of adjacent rings with hardwood dowel pins produces a flexible structure. About 100,000 feet of these wooden pipes were installed in 1942 in drainage culverts, storm sewers and conduits under highways and at army camps, naval stations, airfields and ordnance plants

Substitute materials. Wood culverts for steel. Assembly of an emergenc...

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