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Potomac Electric Power Co. electric appliances. Test tubes showing cooking losses at different cooking temperatures II

Potomac Electric Power Co. electric appliances. Test tubes showing coo...

Public domain photograph related to Potomac Electric Power Company, free to use, no copyright restrictions image - Picryl description

Solomon's Pools & ancient aqueducts. Section of Ain Attah aqueduct. Embedded pottery tubes along the Artas road.

Solomon's Pools & ancient aqueducts. Section of Ain Attah aqueduct. Em...

Picryl description: Public domain photo of 3d object, pottery, ceramics, free to use, no copyright restrictions image.

Answering the call. Dozens of partially-machined tubes for medium caliber guns await finishing processes in an eastern arsenal. Every day finds Uncle Sam's defensive armament stronger

Answering the call. Dozens of partially-machined tubes for medium cali...

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

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. Installing tubes in condensers at TVA's Watts Bar steam plant. This plant will supplement the big hydroelectric installation at Watts Bar Dam, which has an authorized output of 90,000 kilowatts, and a possible ultimate of 150,000 kilowatts. Each of the four big turbo-generators in the steam plant is rated at 60,000 kilowatts

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. Install...

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Drilling tubes - Glass negative photogrpah. Public domain.

Drilling tubes - Glass negative photogrpah. Public domain.

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

Torpedo Tubes, American Submarine

Torpedo Tubes, American Submarine

Locust plagues in Palestine. Froth-filled pouch tubes. Exposed by blown off sand

Locust plagues in Palestine. Froth-filled pouch tubes. Exposed by blow...

Public domain photograph of 1920s Israel, free to use, no copyright restrictions image - Picryl description

Casting a billet from an electric furnace, Chase Brass and Copper Co., Euclid, Ohio. Modern electric furnaces have helped considerably in speeding the production of brass and other copper alloys for national defense. Here the molten metal is poured or cast from the tilted furnace into a mold to form a billet. The billet later is worked into rods, tubes, wires or special shapes for a variety of uses

Casting a billet from an electric furnace, Chase Brass and Copper Co.,...

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

Vice-President of her local, United Electrical Radio and Machine Workers of America, Congress of Industrial Organization (CIO), Mary achieved the job of forelady by working as a hand at many varied operations. She has made a suggestion to conserve bakelite lamp bases, formerly discarded (a suggestion now in use at the plant), and is also the inventor of an apparatus which prevents short-circuiting during tests of lamps. Mary Petillo, forelady of a Newark, New Jersey factory making lamp bulbs and tubes for the Signal Corps, is an active member of her plant's Labor-Management drive to speed victory. She was elected from a plant personnel of 1700, 350 of them men

Vice-President of her local, United Electrical Radio and Machine Worke...

Picryl description: Public domain image of a political campaign, politician, meeting, 1930s, mid-20th-century United States, free to use, no copyright restrictions.

[Moe Braverman inspects test tubes containing sulfer dioxide and other chemicals which record soot fallout] / World Telegram & Sun photo by Fred Palumbo.

[Moe Braverman inspects test tubes containing sulfer dioxide and other...

NYWT&S staff photo. New York World-Telegram and the Sun Newspaper Photograph Collection.

Production. Marine boilers. Huge stocks of tubes for bent tube boilers are built up in shops of a large Midwest manufacturer producing Army and Navy equipment

Production. Marine boilers. Huge stocks of tubes for bent tube boilers...

Actual size of negative is C (approximately 4 x 5 inches). Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944... More

Washington, D.C. Miss Helen Ringwald works with the pneumatic tubes through which messages are sent to branches in other parts of the city for delivery

Washington, D.C. Miss Helen Ringwald works with the pneumatic tubes th...

Picryl description: Public domain photograph of worker, marketplace, vendor, 1930s, Great Depression, economic conditions, free to use, no copyright restrictions.

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

Final check, weather device. Washington, D.C., Sept. 13. L.L. Stockman, also of the Bureau of Standards, Radium Division, uses a wave meter to check the radiometeorograph before attaching it to the parachute and the balloon. When the inflated bag breaks, which it usually does after several hours flying, the instrument is parachuted to the ground. Many times the instrument is found and returned to the bureau. The radiometeorograph contains two radio tubes, a miniature dry cell battery and devices which record and send the weather signals which, in turn, are recorded on a chronograph in Dr. Astin's bood [?] radio room.

Final check, weather device. Washington, D.C., Sept. 13. L.L. Stockman...

A black and white photo of a man holding a camera. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

A standard turret lathe being used for boring operations on seventy-five millimeter pack howitzers at the Erie, Pennsylvania, General Electric plant. A set-up for finish reaming the bore and roughing and finishing the powder chamber is shown with seven tubes in the foreground. These howitzers are being produced largely on machinery formerly used for making streetcar motors

A standard turret lathe being used for boring operations on seventy-fi...

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

Conversion. Copper and brass processing. In the brass and copper casting shop, the operator of an electric furnace is pouring the molten metal into molds to form shells, or rough tubes, which are later formed into finished tubes. Tubes are formed by casting molten metal into these molds in which a refractory core has been inserted. The molds are mounted on a turntable, which brings them into position to receive the pouring. Chase Brass and Copper Company, Euclid, Ohio

Conversion. Copper and brass processing. In the brass and copper casti...

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

Conversion. Copper and brass processing. These bundles of finished seamless copper tubes are ready to be shipped. The Army, the Navy, and our vital industries use corrosion-resistant copper tube for pipelines that must not fail from the rust. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. These bundles of finished sea...

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

Empty collapsible tubes: a tin mine for war industry. Three housewives with husbands in the service sort empty metal tubes that will be melted down at the Newark, New Jersey plant of the Tin Salvage Institute. These workers separate tin and lead tubes from containers made of other materials. In addition to recovery of tin, a substantial volume of lead is reclaimed for use in war industries

Empty collapsible tubes: a tin mine for war industry. Three housewives...

Actual size of negative is C (approximately 4 x 5 inches). Caption card lists some of the printing history of image. Title and other information from caption card. Transfer; United States. Office of War Informa... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

Studies little mollusca. Dr. Paul Bartsch of the National Museum studies mollusk specimens from the Mississippi river in connection with experiments being conducted by the Bureau of Fisheries. These shellfish are little fellows in their infancy. One of the tubes held by Dr. Bartsch holds 1,265,920 specimens, taking up three-fourths of a cubic inch of space, while the other contains 568,000 specimens. 12/22/30

Studies little mollusca. Dr. Paul Bartsch of the National Museum studi...

A black and white photo of a man sitting at a bar. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Test tubes containing bovine tubercular bacteria at Division of Pathology, United States Department of Agriculture Experimental Farm, Beltsville, Maryland

Test tubes containing bovine tubercular bacteria at Division of Pathol...

Public domain photograph - New York, United States, free to use, no copyright restrictions image - Picryl description

A milk tester for the Triple B milk testing associations. His equipment includes test tubes, pipettes, a centrifuge and laboratory apparatus seldom found on the farm. Black Hawk County, Iowa

A milk tester for the Triple B milk testing associations. His equipmen...

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

Production. Tin smelting. Long tubes carry all the smoke thrown off by the furnaces of a Southern tin smelter to Cottrell precipitator units. Here all tin carried in the smoke is removed by an electrical current of 65,000 volts, and added to the metal secured more directly in other stages of the process. The large amounts of pure tin recovered from South American ore in this plant serves countless war purposes of the United Nations

Production. Tin smelting. Long tubes carry all the smoke thrown off by...

Picryl description: Public domain image of a power station, dam, electric generator, industrial building, free to use, no copyright restrictions.

Large strander tubes awaiting machining on shop floor.

Large strander tubes awaiting machining on shop floor.

Forms part of a group of images documenting the daily work activities of people at Watson Machine International, a machine tool manufacturing company located at 74 Railroad Avenue, Paterson, NJ, on August 4, 1994.

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

The electric light in houses--laying the electrical tubes / drawn by W.P. Snyder.

The electric light in houses--laying the electrical tubes / drawn by W...

Laying the tubes for electric wires in the streets of New York City. Illus. in: Harper's weekly, 1882 June 24, p. 393.

Seating ignition tubes - Glass negative photogrpah. Public domain.

Seating ignition tubes - Glass negative photogrpah. Public domain.

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

Brent Daniel, formerly of the Radio Laboratory of the Bureau of Standards at Washington, with the first portable Super-Heterodyne, his own design. The seven vacuum tubes, batteries, loop antenna, loud speaker, and other necessary units are completely self-contained in the carrying case. He has been able to hear Pacific Coast stations from this outfit

Brent Daniel, formerly of the Radio Laboratory of the Bureau of Standa...

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

Test tubes containing bovine tubercular bacteria at Division of Pathology, United States Department of Agriculture Experimental Farm, Beltsville, Maryland

Test tubes containing bovine tubercular bacteria at Division of Pathol...

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

Drawing off solutions into test tubes in micro-biological determination of vitamins in dehydrated vegetables. Regional agricultural research laboratory, Albany, California

Drawing off solutions into test tubes in micro-biological determinatio...

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

Refrigerators to bombers. The last electric refrigerator that rolled from the assembly lines of a large eastern manufacturer, meant a new job for Gertie Saurborn. Formerly, her work was silver-soldering tubes on float cases for refrigerators destined for American homes. Now transferred to war work, along with hundreds of other former refrigerator employees, she is doing her part toward protecting those home by testing regulators being produced for U.S. Army and Navy bombers

Refrigerators to bombers. The last electric refrigerator that rolled f...

Public domain photograph of the 1930s-1940s World War Two, armed forces, military production, no copyright restrictions image - Picryl description

The Radio Robot. Ralph Stair of the Bureau of Standards has invented the Radio Robot, an electrical and mechanical trouble-shooter for radio receiving data. It is almost a human detective in finding radio troubles, testinng and "pepping up" vacuum tubes, testing radio parts and complete receiving sets, both alternating-current and direct-current and is a portable power pack

The Radio Robot. Ralph Stair of the Bureau of Standards has invented t...

Public domain photograph of stairs, steps, free to use, no copyright restrictions image - Picryl description

Solomon's Pools & ancient aqueducts. Section of Ain Attah aqueduct. Embedded pottery tubes along the Artas road.

Solomon's Pools & ancient aqueducts. Section of Ain Attah aqueduct. Em...

Picryl description: Public domain photo of 3d object, pottery, ceramics, free to use, no copyright restrictions image.

Tubes are extruded. Much as meat is forced through a grinder, tube rubber is forced through this machine and out the opening at the end, which allows an even flow of rubber to make a seamless rubber tube. Firestone (General) Tires, Akron, Ohio

Tubes are extruded. Much as meat is forced through a grinder, tube rub...

Actual size of negative is C (approximately 4 x 5 inches). Caption card lists some of the printing history of image. Title and other information from caption card. Transfer; United States. Office of War Informa... More

Conversion. Copper and brass processing. Casting a billet from an electric furnace. Modern electric furnaces have helped considerably in speeding the production of brass and other copper alloys for national defense. Here the molten metal is poured or cast from the tilted furnace into a cylindrical mold to form a billet. The billet later is worked into rods, tubes, wires or special shapes for a variety of defense uses. Chase Brass and Copper Company, Euclid, Ohio

Conversion. Copper and brass processing. Casting a billet from an elec...

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

Fiberglass manufacture, Owens-Corning, Toledo, Ohio. Millions of miles of glass filament are drawn from the forming tubes and twisted into yarns which will be braided over flameproof electrical wire essential to the construction of modern bombers. Each strand coming from each tube contains over 200 tiny glass filaments

Fiberglass manufacture, Owens-Corning, Toledo, Ohio. Millions of miles...

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

Rolling em' out. Tubes and liners for medium caliber guns are prepared for finishing operations in an eastern arsenal. The cannons are being rushed for the war program. "All out for defense"

Rolling em' out. Tubes and liners for medium caliber guns are prepared...

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

Empty collapsible tubes: a tin mine for war industry. Recovery of tin from squeezed-out toothpaste and other collapsible metal tubes begins at drug and other stored where the critical metal is collected under the tube-for-tube exchange plan. Millions of tubes are collected in this way for recovery of tin at government controlled salvage plant in New Jersey

Empty collapsible tubes: a tin mine for war industry. Recovery of tin ...

Public domain photograph of pharmacy, convenience store, free to use, no copyright restrictions image - Picryl description

Washington, D.C. Preparing an advisory forecast at the U.S. Weather Bureau. Completed weather information is sent by pneumatic tubes to a communication center for transmittal to various military and civilian centers for war activity use

Washington, D.C. Preparing an advisory forecast at the U.S. Weather Bu...

Picryl description: Public domain historical photo of Washington DC during the First World War, free to use, no copyright restrictions image.

Washington, D.C. Miss Helen Ringwald works with the pneumatic tubes through which messages are sent to branches in other parts of the city for delivery

Washington, D.C. Miss Helen Ringwald works with the pneumatic tubes th...

Public domain photograph of manufacturing, industry, free to use, no copyright restrictions image - Picryl description

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

Tubes are extruded. Much as meat is forced through a grinder, tube rubber is forced through this machine and out the opening at the end, which allows an even flow of rubber to make a seamless rubber tube. Firestone (General) Tires, Akron, Ohio

Tubes are extruded. Much as meat is forced through a grinder, tube rub...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

Conversion. Copper and brass processing. Casting a billet from an electric furnace. Modern electric furnaces have helped considerably in speeding the production of brass and other copper alloys for national defense. Here the molten metal is poured or cast from the tilted furnace into a cylindrical mold to form a billet. The billet later is worked into rods, tubes, wires or special shapes for a variety of defense uses. Chase Brass and Copper Company, Euclid, Ohio

Conversion. Copper and brass processing. Casting a billet from an elec...

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

Empty collapsible tubes: a tin mine for war industry. Three housewives with husbands in the service sort empty metal tubes that will be melted down at the Newark, New Jersey plant of the Tin Salvage Institute. These workers separate tin and lead tubes from containers made of other materials. In addition to recovery of tin, a substantial volume of lead is reclaimed for use in war industries

Empty collapsible tubes: a tin mine for war industry. Three housewives...

Picryl description: Public domain image of food, dinner, grocery store, eating, 1930s, mid-20th-century United States, free to use, no copyright restrictions.

[Cannons shooting fire tubes to frighten charging cavalry troops who are shown retreating]

[Cannons shooting fire tubes to frighten charging cavalry troops who a...

Illus. in: De la pirotechnia. [Veneto] : 1540. Published in: The tradition of technology : Landmarks of Western technology ... / Leonard C. Bruno. Washington, D.C. : Library of Congress, 1995, p. 37.

[Tubes containing mercury with vacuum at top showing development of first barometer capable of measuring atmospheric pressure, includes page of text]

[Tubes containing mercury with vacuum at top showing development of fi...

Illus. in: Lezioni accademiche d'Evangelista Torricelli, mattematico e filosofo del Sereniso. Firenze : Nella stamp. di S.A.R. per J. Guiducci, e S. Franchi, 1715. Published in: The tradition of technology : L... More

Tubes for subway line under Harlem River, being sunk

Tubes for subway line under Harlem River, being sunk

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

Potomac Electric Power Co. electric appliances. Test tubes showing cooking losses at different cooking temperatures I

Potomac Electric Power Co. electric appliances. Test tubes showing coo...

Public domain photograph related to Potomac Electric Power Company, free to use, no copyright restrictions image - Picryl description

Hamburger? No, this is a straining machine. Rubber to be used for the manufacture of inner tubes is here being forced through a thirty mesh screen to remove dirt, sand, etc. Ford River Rouge plant

Hamburger? No, this is a straining machine. Rubber to be used for the ...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

Production. B-24 bombers and C-87 transports. Beulah Faith, former sales lady, is now a lathe operator at a Western aircraft plant. She is reaming tubes used in making the huge consolidated transports and bombers. These new transport, adapted from the famous the B-24 bomber is known as the C-87, and carries one of the greatest human or cargo loads of any plane now in mass production.

Production. B-24 bombers and C-87 transports. Beulah Faith, former sal...

Public domain photograph - working class people, the 1930s United States, work, labor, worker, free to use, no copyright restrictions image - Picryl description

Mary Petillo, forelady of a Newark, New Jersey factory making lamp bulbs and tubes for the Signal Corps, is an active member of her plant's laboratory management committee. The committee, set up in cooperation with the War Production Board's drive to speed victory, was elected in Mary's plant from a personnel of 1700, 350 of them men. Vice-president of her local, United Electrical, Radio and Machine Workers of America, Congress of Industrial Organization, Mary achieved the job of forelady by working working as a hand at many varied operations. She has made a suggestion to conserve bakelite lamp bases formerly discarded--a suggestion now in use at the plant--and is also the inventor of an apparatus which prevents short-circuiting during tests of lamps

Mary Petillo, forelady of a Newark, New Jersey factory making lamp bul...

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

De Soto bomber plant. Detroit, Michigan. Worker at bending machine producing complex curves. The wires for the airplanes are inserted through these magnesium tubes

De Soto bomber plant. Detroit, Michigan. Worker at bending machine pro...

Public domain photograph of 1930s industry, war production in the United States free to use, no copyright restrictions image - Picryl description

Conversion. Copper and brass processing. This is the busy shipping platform of a brass mill. An electric crane is lowering a case of tubes on a truck. Other finished brass and copper rod, wire, and tubes are on the platform packed and ready to ship. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. This is the busy shipping pla...

Picryl description: Public domain photograph of workers, war production, aircraft, airfield, the 1930s -1940s, free to use, no copyright restrictions.

Conservation of durable goods. That's no idle whim of Uncle Sam's; these empty tubes you turn in before buying more are converted into essential products. Vital tin and alloy metals conserved by this procedure

Conservation of durable goods. That's no idle whim of Uncle Sam's; the...

Picryl description: Public domain image of people, meeting, eating, drinking, food, beverage, 1930s, free to use, no copyright restrictions.

Empty collapsible tubes: a tin mine for war industry. Recovery of tin from squeezed-out toothpaste and other collapsible metal tubes begins at drug and other stored where the critical metal is collected under the tube-for-tube exchange plan. Millions of tubes are collected in this way for recovery of tin at government controlled salvage plant in New Jersey

Empty collapsible tubes: a tin mine for war industry. Recovery of tin ...

Actual size of negative is C (approximately 4 x 5 inches). Caption card lists some of the printing history of image. Title and other information from caption card. Transfer; United States. Office of War Informa... More

Bethlehem-Fairfield shipyards, Baltimore, Maryland. Caulking headers for boiler tubes

Bethlehem-Fairfield shipyards, Baltimore, Maryland. Caulking headers f...

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

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

Crude rubber, baled, in the storage room. This rubber will be used to make automobile tires and tubes. Ford River Rouge plant

Crude rubber, baled, in the storage room. This rubber will be used to ...

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

Production. Tin smelting. Tin is recovered from smelting furnace smoke in a Southern operation that produces pure tin from South American ore. All the smoke from the furnace is carried by long tubes to Cottrell precipitating units as shown. Here an electrical current of 65,000 volts throws out all the tin held in the smoke, and makes a valuable addition to the supplies of tin now needed for the countless critical war uses of the United Nations

Production. Tin smelting. Tin is recovered from smelting furnace smoke...

Picryl description: Public domain photo of a factory, warehouse, commercial or industrial building, free to use, no copyright restrictions image.

Conversion. Copper and brass processing. This worker is at the controls of an extruding machine, a powerful piece of apparatus in a brass and copper mill that pushes billets of metal usually heated red hot, through a die to form rods, tubes, angles, channels and other shapes. Chase Brass and Copper Company, Euclid, Ohio

Conversion. Copper and brass processing. This worker is at the control...

Picryl description: Public domain photograph of a machine, industrial equipment, engine, generator, free to use, no copyright restrictions.

Production. Marine boilers. Huge stocks of tubes for bent tube boilers are built up in shops of a large Midwest manufacturer producing Army and Navy equipment

Production. Marine boilers. Huge stocks of tubes for bent tube boilers...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

Transformer manufacture. These porcelain spirals are part of the works of a power transformer; transformers are essential to war production industries, and this employee of a large Eastern electrical company, working in the bushing section, is contributing essentially to Uncle Sam's war effort. Bushings are the tubes which hold the copper leads through which power flows both in and out of giant transformers. Westinghouse, Sharon, Pennsylvania

Transformer manufacture. These porcelain spirals are part of the works...

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Conversion. Copper and brass processing. A mechanical feeder is here shown running billets of brass into an electric furnace, where they will be heated at a high temperature. Then the heated billets will be pushed with tremendous force through the die of an extrusion machine to form rods, tubes, angles or other shapes. Chase Brass and Copper Company, Euclid, Ohio

Conversion. Copper and brass processing. A mechanical feeder is here s...

Picryl description: Public domain photograph of lumber, lumberjack workers, 1930s, Great Depression, economic conditions, free to use, no copyright restrictions.

Conversion. Copper and brass processing. Here is a stock of billets, or solid cylindrical brass or copper castings, which have been sawed to length. These billets will be heated and put through a powerful extrusion machine, which will extrude rods, tubes or other special shapes from them. Billets are cast six inches to eight inches in diameter and usually from four to ten feet long. These are sawed to shorter lengths before they go to the extrusion machines. Chase Brass and Copper Company, Euclid, Ohio

Conversion. Copper and brass processing. Here is a stock of billets, o...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

Empty collapsible tubes: a tin mine for war industry. Pigs of practically pure tin reclaimed from old tooth paste and other tubes in the Newark, New Jersey, plant of the Tin Salvage Institute. Each pig, which is approximately ninety-five percent tin, weighs ninety-seven to one hundred pounds

Empty collapsible tubes: a tin mine for war industry. Pigs of practica...

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

Chicago, Illinois. Pullman porters receiving reservation diagrams for their trains through pneumatic tubes from the reservation room. This is in the passenger agent's room of the Union Station

Chicago, Illinois. Pullman porters receiving reservation diagrams for ...

Picryl description: Public domain photograph of an office worker, 1930s, free to use, no copyright restrictions.

Washington, D.C. Mrs. Eva Poovey working with pneumatic tubes from which telegrams are taken at the Western Union telegraph office

Washington, D.C. Mrs. Eva Poovey working with pneumatic tubes from whi...

Public domain scan of a telegram, telegraph correspondence, free to use, no copyright restrictions - Picryl description.

Threading tubes - Glass negative photogrpah. Public domain.

Threading tubes - Glass negative photogrpah. Public domain.

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

Filing extension tubes - Glass negative photogrpah. Public domain.

Filing extension tubes - Glass negative photogrpah. Public domain.

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

Citations of Individual Production Merit awarded. The first five citations of Individual Production Merit have been awarded to five war workers, War Production Drive Headquarters has announced. The citation is the highest award conferred for individual achievement. It is granted only for ideas or suggestions that have an outstanding effect on the war effort. Walter P. Hill of Detroit, Michigan, a sales and development manager for the Wolverine Tube Division of the Calumet and Hecla Consolidated Copper Co., developed an idea of prime military importance. All that can be said is that he developed the "overall spum and primer for an ammunition primer which is now being utilized for large manufacturers of primer tubes. This effects a saving of metal, increased production with present facilities and lower overall production costs." The rest has been restricted by military authorities

Citations of Individual Production Merit awarded. The first five citat...

Picryl description: Public domain historical photo of Washington DC during the First World War, free to use, no copyright restrictions image.

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. Installing tubes in condensers at TVA's Watts Bar steam plant. This plant will supplement the big hydroelectric installation at Watts Bar Dam, which has an authorized output of 90,000 kilowatts, and a possible ultimate of 150,000 kilowatts. Each of the four big turbo-generators in the steam plant is rated at 60,000 kilowatts

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. Install...

Picryl description: Public domain image of an aircraft, assembly line, industrial facility, 1930s aviation, free to use, no copyright restrictions.

Empty collapsible tubes: a tin mine for war industry. Joseph Schoot, age 18, tends a remelting furnace at the Newark, New Jersey, plant of the Tin Salvage Institute. This plant handles about 400,000 pounds of old tooth paste and other metal tubes each month. Note the small stream of tin flowing from the furnace into the channel

Empty collapsible tubes: a tin mine for war industry. Joseph Schoot, a...

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.

Buffalo, New York. Cecelia Wrazen, a roller, inserting tubes into condensers for the Navy at the Ross Heater plant

Buffalo, New York. Cecelia Wrazen, a roller, inserting tubes into cond...

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

Locust plagues in Palestine. A group of egg tubes. Exposed by shifting sands

Locust plagues in Palestine. A group of egg tubes. Exposed by shifting...

Public domain photograph of 1920s Israel, free to use, no copyright restrictions image - Picryl description

A black and white photo of men working on a machine. Office of War Information Photograph

A black and white photo of men working on a machine. Office of War Inf...

Actual size of negative is C (approximately 4 x 5 inches). Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944... More

Production. Naval gun mounts. Part of a 16 inch naval gun assembly is ground for surface finish in a large Midwest factory producing mounts for big naval guns and torpedo tubes. Westinghouse, Louisville, Kentucky

Production. Naval gun mounts. Part of a 16 inch naval gun assembly is ...

Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.

Empty collapsible tubes: a tin mine for war industry. Sorting used metal tubes at the Newark, New Jersey reclamation plant of the Tin Salvage Institute. Tubes made of different metals are segregated into separate bins

Empty collapsible tubes: a tin mine for war industry. Sorting used met...

Picryl description: Public domain image of food, dinner, grocery store, eating, 1930s, mid-20th-century United States, free to use, no copyright restrictions.

Empty collapsible tubes: a tin mine for war industry. Checking the flow of tin, reclaimed from empty collapsible tubes, into melting pot at the reclamation plant of the Tin Salvage Institute. This plant receives millions of collapsible tubes turned in by consumers under the tube-for-tube exchange plan

Empty collapsible tubes: a tin mine for war industry. Checking the flo...

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

Washington, D.C. Miss Helen Ringwald works with the pneumatic tubes through which messages are sent to branches in other parts of the city for delivery

Washington, D.C. Miss Helen Ringwald works with the pneumatic tubes th...

Public domain photograph of organ, keyboard instrument, church, gothic architecture, free to use, no copyright restrictions image - Picryl description

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

[Composite figures in cubist and surrealistic style composed of materiasl such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

Conversion. Copper and brass processing. Drawing seamless copper tube. Rough cast tubes tapered at one end to fit through a die are gripped in the tongs of the electric motor-driven vehicle on the drawbench and pulled or "drawn" through the die to be reduced to the desired size. Tubes usually are redrawn many times; each successive "draw" reduces the diameter, and increases the length. Brass tubes need to be annealed or softened between each draw, but copper tubes can be drawn several times without intermediate annealing. The tapered nose of the tubes may be seen just behind the drawbench operator. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. Drawing seamless copper tube....

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

Transformer manufacture. When completed, this transformer will supply electric furnaces with the power needed to produce steel for Uncle Sam's ships and tanks and guns. The cooling coils pictured here are made of copper. A new process of forced oil cooling adds efficiency to these coilings; oil through these tubes at relatively high speed, cooling is greatly improved, and a larger lead current can be carried through the copper windings, thereby increasing the output of the transformer. Westinghouse, Sharon, Pennsylvania

Transformer manufacture. When completed, this transformer will supply ...

Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. Installing tubes in condensers at TVA's Watts Bar steam plant. This plant will supplement the big hydroelectric installation at Watts Bar Dam, which has an authorized output of 90,000 kilowatts, and a possible ultimate of 150,000 kilowatts. Each of the four big turbo-generators in the steam plant is rated at 60,000 kilowatts

Tennessee Valley Authority. Watts Bar Dam hydroelectric plant. Install...

Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.

Empty collapsible tubes: a tin mine for war industry. Pure tin recovered from old tooth paste, shaving cream and other tubes is drawn off from a electric furnace in the Newark, New Jersey, plant of the Tin Salvage Institute. A blow torch is used to expedite the flow of tin until the molten metal heats the channel sufficiently to permit steady flow

Empty collapsible tubes: a tin mine for war industry. Pure tin recover...

Actual size of negative is C (approximately 4 x 5 inches). Caption card lists some of the printing history of image. Title and other information from caption card. Transfer; United States. Office of War Informa... More

Empty collapsible tubes: a tin mine for war industry. A ladle of almost pure tin, reclaimed from old tooth paste and other metal tubes, is removed from a heating pot for pouring into molds at the Newark, New Jersey, plant of the Tin Salvage Institute. This plant handles about 400,000 pounds of old tubes each month

Empty collapsible tubes: a tin mine for war industry. A ladle of almos...

Actual size of negative is C (approximately 4 x 5 inches). Caption card lists some of the printing history of image. Title and other information from caption card. Transfer; United States. Office of War Informa... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

[Composite figures in cubist and surrealistic style composed of materials such as chain links, tubes, sieves and tennis racquets]

[Composite figures in cubist and surrealistic style composed of materi...

50 plates (t.p., frontis., Medici coat of arms to whom the work is dedicated, and 47 etchings). Illus. in: only known complete copy of Bizzarie di varie figure of Giovanni Battista Braccelli, publ. in Livorno, ... More

Chicago, Illinois. These pneumatic tubes in the Illinois Central Railroad yardmaster's office connect him with the general office

Chicago, Illinois. These pneumatic tubes in the Illinois Central Railr...

Picryl description: Public domain photograph of an office worker, 1930s, free to use, no copyright restrictions.

Torpedo tubes get coat of paint. Painters putting the finishing touches on torpedo tubes in production at an eastern Navy arsenal. All kinds of skilled workers are needed in the expanded war program. Production has been stepped up in this and ten other arsenals throughout the country

Torpedo tubes get coat of paint. Painters putting the finishing touche...

Picryl description: Public domain historical photo of Washington DC during the First World War, free to use, no copyright restrictions image.

Transformer manufacture. These porcelain spirals are part of the works of a power transformer; transformers are essential to war production industries, and this employee of a large Eastern electrical company, working in the bushing section, is contributing essentially to Uncle Sam's war effort. Bushings are the tubes which hold the copper leads through which power flows both in and out of giant transformers. Westinghouse, Sharon, Pennsylvania

Transformer manufacture. These porcelain spirals are part of the works...

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

Conversion. Copper and brass processing. Drawing seamless copper tube. Rough cast tubes tapered at one end to fit through a die are gripped in the tongs of the electric motor-driven vehicle on the drawbench and pulled or "drawn" through the die to reduce them to the desired size. Tubes usually are redrawn many times; each successive "draw" reduces the diameter, and increases the length. Brass tubes need to be annealed or softened between each draw, but copper tubes can be drawn several times without intermediate annealing. The tapered nose of the tubes may be seen just behind the drawbench operator. The tube is checked with a micrometer after being drawn, to make sure it is the right diameter. The man looking through the short section of tube is inspecting the inner surface for flaws. The Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. Drawing seamless copper tube....

Public domain photograph of car garage, repair shop, 20th century, free to use, no copyright restrictions image - Picryl description

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