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Conversion. Automobiles to 40 mm. anti-aircraft guns. Preliminary inspection of "flame arresters" in a former automobile plant. When finished, these "flame arresters" are attached to the nozzle end of a 40 mm. anti-aircraft gun to protect the firing crew. Chrysler Corporation, Highland Park, Detroit

Conversion. Automobiles to 40 mm. anti-aircraft guns. Preliminary insp...

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

Pitcairn, Pennsylvania. Mrs. Bernice Stevens of Braddock, Pennsylvania, mother of one child, employed in the engine house of the Pennsylvania Railroad, earns fifty-eight cents per hour. She is cleaning a locomotive with a high pressure nozzle. Mrs. Stevens' husband is in the U.S. Army

Pitcairn, Pennsylvania. Mrs. Bernice Stevens of Braddock, Pennsylvania...

Picryl description: Public domain image of a locomotive, train tracks, rail transportation, railroad, railway, 19th-20th century, free to use, no copyright restrictions.

In 2008, nearly 90 years after it was built, this 1919 gas station in El Paso, Texas, was restored by antiques business owner Rod Davenport

In 2008, nearly 90 years after it was built, this 1919 gas station in ...

Title, date, and keywords based on information provided by the photographer. Credit line: The Lyda Hill Texas Collection of Photographs in Carol M. Highsmith's America Project, Library of Congress, Prints and P... More

Royal Hose & turn. nozzle no. 6 - York, Pennsylvania, Fire Department

Royal Hose & turn. nozzle no. 6 - York, Pennsylvania, Fire Department

Three firemen and dalmatian on fire engine drawn by two horses.

Dr. E. Francis Warren, of Harvard U., believes he will be able to "shoot down" the heaviest clouds and fog by his new invention demonstrated recently at Bolling Field, Wash., by Army fliers. The process uses sand and he states that if enough airplanes are equipped with this device, it will not only be possible to break up clouds and cause rainbut to remove fogs from over both cities and harbors. The picture shows Lt. W. E. Melville pouring sand into the pit. Directly underneath the wing can be seen a nozzle that sprays the sand through the air

Dr. E. Francis Warren, of Harvard U., believes he will be able to "sho...

Picryl description: Public domain image of an aircraft, aviator, 1910s-1920s, early 20th-century aviation, free to use, no copyright restrictions.

Civilian defense. Extremely valuable in battling incendiary bombs is the stirrup pump operated by three, or in cases of emergency, two men. The volunteer worker closest to the camera is pumping water from the bucket on the reef, while the man barely visible in the center replenishes the water supply from another bucket. The third volunteer, holding the nozzle, which may be adjusted to provide either a spray or a steady stream of water, is spraying magnesium incendiary bomb and the area around it. New improved pumps are being produced in American factories

Civilian defense. Extremely valuable in battling incendiary bombs is t...

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

B & H Aircraft, 441 Eastern Parkway, Farmingdale. Nozzle stator

B & H Aircraft, 441 Eastern Parkway, Farmingdale. Nozzle stator

Public domain photograph of 1940s-1950s America, free to use, no copyright restrictions image - Picryl description

Production. Marine boilers. A nozzle is welded on a marine boiler drum in a big Midwest plant producing essential equipment for the Army and Navy

Production. Marine boilers. A nozzle is welded on a marine boiler drum...

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.

Pitcairn, Pennsylvania. Mrs. Bernice Stevens of Braddock, Pennsylvania, mother of one child, employed in the engine house of the Pennsylvania Railroad, earns fifty-eight cents per hour. She is cleaning a locomotive with a high pressure nozzle. Mrs. Stevens' husband is in the U.S. Army

Pitcairn, Pennsylvania. Mrs. Bernice Stevens of Braddock, Pennsylvania...

Picryl description: Public domain image of railroad tracks, railway, train car, free to use, no copyright restrictions.

Production. Steam power plant equipment. Welding a nozzle on a new high-pressure boiler by electric arc method. Steam boilers and other power-house equipment to supplement the hydroelectric installations of the Tennessee Valley Authority (TVA) system are produced in the large Chattanooga shops of the Combustion Engineering Company

Production. Steam power plant equipment. Welding a nozzle on a new hig...

Picryl description: Public domain image of a hydroelectric dam, industrial facility, power generation, water cascade, free to use, no copyright restrictions.