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1940 s

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Conversion. Copper and brass processing. Packing coils of refrigeration tubing in paper containers. Because it is important to keep dirt and moisture from refrigeration tube, it is packaged in individual envelopes. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. Packing coils of refrigeratio...

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

Chicago, Illinois. Subsistence research laboratory of the U.S. Army quartermaster depot. Captain L.W. Horne, weighing sample of dehydrated potatoes for moisture

Chicago, Illinois. Subsistence research laboratory of the U.S. Army qu...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Removing excess moisture from leather by means of rollers. Leather must be moistened and tempered before being used and then excess liquid is pressed out. Bootmaking shop, Alpine Texas

Removing excess moisture from leather by means of rollers. Leather mus...

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.

Applying pressure to curd in molds. This process removes moisture and forms a close texture in the cheese. Tillamook cheese plant, Tillamook, Oregon

Applying pressure to curd in molds. This process removes moisture and ...

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

Strawberries in the field with carrier full of berries. Dried pine needles are spread around plants and between rows to keep weeds out and conserve moisture. Near Hammond, Louisiana

Strawberries in the field with carrier full of berries. Dried pine nee...

Public domain photograph of a graveyard monument, free to use, no copyright restrictions image - Picryl description

A black and white photo of a man in a field, Great Depression. FSA/OWI Photograph

A black and white photo of a man in a field, Great Depression. FSA/OWI...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Scooping dried hops from drying room to adjacent room were they will be baled. Hops are dried about seventeen hours, lose from twenty to twenty-five percent moisture content in the process. Yakima County, Washington

Scooping dried hops from drying room to adjacent room were they will b...

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. P-51 "Mustang" fighter planes. A North American Aviation woman employee at Inglewood, California, sits astride a "Mustang" fighter for Royal Air Force (RAF), as she places a bag of chemicals in the plane to prevent the accumulation of moisture. This plant produces the battle-tested B-25 "Billy Mitchell" bomber, used in General Doolittle's raid on Tokyo, and the P-51 fighter plane which was first brought into prominence by the British raid on Dieppe

Production. P-51 "Mustang" fighter planes. A North American Aviation w...

Picryl description: Public domain image of a bomber aircraft, military aviation, air forces, free to use, no copyright restrictions.

Demonstrating use of cellophane and similar products in overall moisture resistant wrapping of packaged dehydrated vegetables. Regional agricultural research laboratory, Albany, California

Demonstrating use of cellophane and similar products in overall moistu...

Public domain photograph of laboratory, science, research, free to use, no copyright restrictions image - Picryl description

Farmers during Great Depression: A man walking a dog in a field.

Farmers during Great Depression: A man walking a dog in a field.

Picryl description: Public domain photograph of farming, farmer, agriculture, 20th-century, free to use, no copyright restrictions.

Kern County California. Mill of the Tungsten Chief Mine. Roasting concentrated tungsten ore to remove moisture

Kern County California. Mill of the Tungsten Chief Mine. Roasting conc...

Picryl description: Public domain image of a coal mine, mining, free to use, no copyright restrictions.

Conducting moisture tests on sample of rice. State rice mill, Crowley, Louisiana

Conducting moisture tests on sample of rice. State rice mill, Crowley,...

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

Making tortillas in bake shop, San Antonio, Texas. Tortillas are made of corn flour which is very finely ground and mashed corn. No moisture or baking powder or salt is added

Making tortillas in bake shop, San Antonio, Texas. Tortillas are made ...

Picryl description: Public domain image of catering, dinner table arrangement, caterer, restaurant, food, free to use, no copyright restrictions.

Weighing a packaged sample of dehydrated vegetable to determine moisture resistance quality of packaging. Regional agricultural research laboratory, Albany, California. A special humidifying room gives an accelerated test

Weighing a packaged sample of dehydrated vegetable to determine moistu...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Plains farms need trees Trees prevent wind erosion, save moisture ... protect crops, contribute to human comfort and happiness / / J. Dusek.

Plains farms need trees Trees prevent wind erosion, save moisture ... ...

Poster encouraging planting trees as a method of soil conservation. Write the director, Prairie States Forestry Project, Lincoln, Nebraska. Date stamped on verso: Feb 10 1940. Work Projects Administration Poste... More

Bureau of Standards making extensive tests of glass building blocks. Washington, D.C., June 20. Hollow glass building blocks are being used more and more extensively for structural purposes when both greater light distribution and air conditioning are required. Extensive tests to determine the strength of glass block walls and their resistance to wind pressure and moisture penetration. A.N. Finn, Chief of the glass section, is inspecting some 8 x 4 feet panels before they are tested, 6/20/38

Bureau of Standards making extensive tests of glass building blocks. W...

Public domain photograph of people in office, interior, the 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

Government discovers method to preserve film. (2) Expansion and contraction, like paper and other sheet materials made from cellulose, films expand as they take up moisture and contract as they lose it, and the extent of the change is different in the two directions of them. This may cause some distortion of the image, and therefore is of particular importance where the image must be true to scale, such as in aerial photography. C.O. Pope is shown with a type of expansiveity tester used and which was designed by the Bureau of Standards. Long strips of film are suspended under constant tension in the [cabinet?] in which the humidity is varied by means of [...] solutions. The change in length is indicated [...continuously?] on a scale by means of an optical-level arrangement, 7/8/38

Government discovers method to preserve film. (2) Expansion and contra...

Public domain photograph of people, building, free to use, no copyright restrictions image - Picryl description

Lodged wheat, Walla Walla County, Washington. During a season of excessive moisture wheat is likely to develop more straw and lighter heads than normal; consequently when either high winds or hard rains come the tall straw bends or breaks. With modern combines it is possible to save much of the lodged wheat.

Lodged wheat, Walla Walla County, Washington. During a season of exces...

Public domain photograph of United States countryside, nature, during 1930s, free to use, no copyright restrictions image - Picryl description

L.R. Leinbach, associate chemist, assembles the apparatus used in determining moisture content of dehydrated vegetables at the regional agricultural research laboratory. Albany, California

L.R. Leinbach, associate chemist, assembles the apparatus used in dete...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Production. Copper. Disc-type filters which remove moisture from the copper concentrates at the Arthur mill of the Utah Copper Company. Following this treatment the ore is ready for shipment to the Garfield, Utah smelter of the American Smelting and Refining Company

Production. Copper. Disc-type filters which remove moisture from the c...

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

Detail of apparatus used for determining moisture content of dehydrated vegetables at the regional agricultural research laboratory. Albany, California

Detail of apparatus used for determining moisture content of dehydrate...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Weighing a packaged sample of dehydrated vegetable to determine moisture resistance quality of packaging. Regional agricultural research laboratory, Albany, California. A special humidifying room gives an accelerated test

Weighing a packaged sample of dehydrated vegetable to determine moistu...

Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description

Conversion. Rendering of household fats. Moisture and foreign matter from reclaimed household greases are drained from cookers into open vats at a rendering plant. The liquid next drains into a settling tank where additional tallow is recovered. The residue becomes cracklings, consisting of meat, bones and some fats, and will be used as animal food

Conversion. Rendering of household fats. Moisture and foreign matter f...

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

The latest in cotton planting. Washington, DC, July 15. John Randolph, engineer of the U.S. Bureau of Agriculture Engineering demonstrates a model of a variable depth cotton planter which he invented. The small white dots at which he is pointing mark the wavy line of seed as planted by this new machine which makes it possible to get a strand of cotton no matter what the moisture conditions in the soil. This planter is now manufactured by several farm machinery companies and thousands are in use in the cotton belt, The essential part of the machine is a cam which causes the planting shoe to rise and fall as the planter moves forward, 7/15/38

The latest in cotton planting. Washington, DC, July 15. John Randolph,...

Public domain historical photo, free to use, no copyright restrictions image - Picryl description

AAA (Agricultural Adjustment Administration) office, Grundy County, Iowa. Tagg-Heppenstal electric moisture tester--tells instantly percent of water in grain; used in connection with wheat and storage loans

AAA (Agricultural Adjustment Administration) office, Grundy County, Io...

Picryl description: Public domain image of a bureau, office furniture, desk, chair, free to use, no copyright restrictions.

Production. Industrial alcohol. The "cyclone" of a former whiskey distillery now producing alcohol for war purposes whirls a grain mash from which alcohol has been distilled to remove moisture. The partially dried mash is then loaded on railway cars for farm use

Production. Industrial alcohol. The "cyclone" of a former whiskey dist...

Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description

Production. Veneer for aircraft and other war essentials. A strip of walnut veneer that will be used in a panel of a combat plane comes from the textile dryer of a Midwest plant. This operation reduces the moisture content to about eight to ten percent. Sheets are stacked in exact sequence just as they come off the knife slicer from the log. Louisville, Kentucky

Production. Veneer for aircraft and other war essentials. A strip of w...

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

Chicago, Illinois. Subsistence research laboratory of the U.S. Army quartermaster depot. Field ration, consisting of previously prepared food, packed in moisture, heat cold and gas resistant containers. Every item in the ration is included for a scientific reason

Chicago, Illinois. Subsistence research laboratory of the U.S. Army qu...

Public domain photograph of laboratory, science, research, free to use, no copyright restrictions image - Picryl description

Texas photographs - Farm Security Administration / Office of War Information Photograph.

Texas photographs - Farm Security Administration / Office of War Infor...

Picryl description: Public domain image of catering, dinner table arrangement, caterer, restaurant, food, free to use, no copyright restrictions.

A black and white photo of a man working in a factory. Office of War Information Photograph

A black and white photo of a man working in a factory. Office of War I...

Public domain photograph - United States during the 1930s and 1940s, Farm Security Administration, New Deal, free to use, no copyright restrictions image - Picryl description

Roller constructed by Rehabilitation Administration client which is used to flatten soil between cotton and help in keeping moisture in the land. Near Batesville, Arkansas

Roller constructed by Rehabilitation Administration client which is us...

Picryl description: Public domain photograph of farming, farmer, agriculture, 20th-century, free to use, no copyright restrictions.

Sheridan County, Kansas, farmer digging in the dirt to see how deep the moisture is

Sheridan County, Kansas, farmer digging in the dirt to see how deep th...

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

Production. Veneer for aircraft and other war essentials. A strip of walnut veneer that will be used in a panel of a combat plane comes from the textile dryer of a Midwest plant. This operation reduces the moisture content to about eight to ten percent. Sheets are stacked in exact sequence just as they come off the knife slicer from the log. Louisville, Kentucky

Production. Veneer for aircraft and other war essentials. A strip of w...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description

Conversion. Flooring to gunstocks. Rifle "furniture" for the Army. Carefully selected walnut butts from which gunstocks will be made are stacked on a kiln truck for a drying operation that will reduce the moisture content to twelve percent. After drying, they will be ready for turning into rifle stocks. Louisville, Kentucky

Conversion. Flooring to gunstocks. Rifle "furniture" for the Army. Car...

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

Holdings of the Long Bell Lumber Company, Cowlitz County, Washington. Notice the tall ferns; the constant dripping moisture in the forests of this section have earned them the name "the rain forests"

Holdings of the Long Bell Lumber Company, Cowlitz County, Washington. ...

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

Dehydration. Potatoes. A batch of dehydrated potatoes is inspected by Horace Campbell, chief of the Vegetable Section at the Western Regional Research Laboratory in Albany, California. Four to seven hours of dehydration are required before all moisture is removed from the potatoes

Dehydration. Potatoes. A batch of dehydrated potatoes is inspected by ...

Public domain photograph of laboratory, science, research, free to use, no copyright restrictions image - Picryl description

Pomp Hall, Negro tenant farmer, digging a hole in the ground to see how far down the moisture goes, Creek County, Oklahoma. See general caption number 23

Pomp Hall, Negro tenant farmer, digging a hole in the ground to see ho...

Public domain photograph related to race relations, African Americans, free to use, no copyright restrictions image - Picryl description

An old black and white photo of a man digging a hole. Great Depression FSA photogpraph

An old black and white photo of a man digging a hole. Great Depression...

Public domain photograph related to Great Depression, free to use, no copyright restrictions image - Picryl description