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Holabird ordnance depot, Baltimore, Maryland. Careful records of air pressure in a Le-Tourneau roadscraper's giant tires are made before the scrapers are shipped overseas. Ten pounds additional pressure is put in tires before the journey to assure best condition of the tire upon arrival

Holabird ordnance depot, Baltimore, Maryland. Careful records of air p...

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

Mark 4:1-9. Because of the pressure of the multitude, Jesus seateth himself in Peter's fishing boat, and teacheth the people many things by parables

Mark 4:1-9. Because of the pressure of the multitude, Jesus seateth hi...

Picryl description: Public domain image of a fishing boat, free to use, no copyright restrictions.

B & H Aircraft, Farmingdale, Long Island. Water pressure test

B & H Aircraft, Farmingdale, Long Island. Water pressure test

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

NASA Langley Research Center, 8-Foot Transonic Pressure Tunnel, 640 Thornell Avenue, Hampton, Hampton, Virginia

NASA Langley Research Center, 8-Foot Transonic Pressure Tunnel, 640 Th...

Significance: The 8-Foot Transonic Pressure Tunnel was the first of Langley's wind tunnels to be built incorporating the new slotted throat tunnel design from its inception. A significant improvement over its r... More

The low pressure steamboat "Isaac Newton": passing the palisades on the Hudson River New York

The low pressure steamboat "Isaac Newton": passing the palisades on th...

Artist: Charles Parsons. Currier & Ives : a catalogue raisonné / compiled by Gale Research. Detroit, MI : Gale Research, c1983, no. 4148

[Group of young women performing atmospheric pressure experiments while studying science in normal school, Washington, D.C.]

[Group of young women performing atmospheric pressure experiments whil...

Frances Benjamin Johnston Collection. Public domain photograph of historic place in Washington DC, free to use, no copyright restrictions image - Picryl description

High pressure wagon, #6 N.Y.F.D.

High pressure wagon, #6 N.Y.F.D.

Photograph shows fire fighters riding down the center of the road in horse-drawn fire engine.

Wash. D.C. In a huddle. Rep. Edward G. Moran Jr. (D of Maine) in a close huddle with Thomas G. Corcoran, New Deal Atty. who is being charged with "using pressure to swing utility" votes by Rep. Ralph Brewster (D) also of Maine, and Benjamin Cohen, Atty and associate of Corcoran at the Thursday hearing of the House Rules Lobby Inquiry. 7/11/35

Wash. D.C. In a huddle. Rep. Edward G. Moran Jr. (D of Maine) in a clo...

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

Winners of the Collier Trophy. Washington, D.C., Sept. 16. The Collier Trophy, considered aviation's highest honor, was won today by two army aviators, they were credited with flying the first pressure cabin airplane anywhere in the world. Maj. Carl F. Green, left and Capt. Alfred H. Johnson, both of Wright Field, Ohio, 9/16/38

Winners of the Collier Trophy. Washington, D.C., Sept. 16. The Collier...

Public domain photograph of Washington DC, 1910s-1920s America, free to use, no copyright restrictions image - Picryl description

Lucille West, at pressure cooker, and Nancy Engram canning vegetables and fruits in home economics class at Flint River Farms, Georgia

Lucille West, at pressure cooker, and Nancy Engram canning vegetables ...

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

FSA (Farm Security Administration) supervisor giving a demonstration of pressure canning before a group of FSA officials at a district meeting at San Angelo, Texas. She is removing top of pressure cooker

FSA (Farm Security Administration) supervisor giving a demonstration o...

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

Giant tire manufacturer. Giant vulcanizer used in the vulcanization of bullet-sealing gasoline tanks, eight-foot high bomber tires and huge 3,600-pound earth mover tires. This unit at a large Eastern tire plant is the largest of its kind in the world. It must be thoroughly and constantly inspected as it is in frequent service on war production. Here the inspector is checking the steam and pressure fittings. The mold, when open, stands more than two-and-a-half stories high and weighs over 300,000 pounds. Firestone

Giant tire manufacturer. Giant vulcanizer used in the vulcanization of...

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

Production. Plywood for aircraft and boats. Making plywood panels for combat planes and boats. A huge hydraulic press operating at high temperature and a pressure of 250 pounds per square inch attaches glue-surfaced veneer sheets to lumber-core panels to make high-grade plywood for Army and Navy uses. Louisville, Kentucky

Production. Plywood for aircraft and boats. Making plywood panels for ...

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

Giant tire manufacturer. This husky workman, standing six feet four inches tall, looks small indeed as he uses air pressure to clean the lid of the world's largest vulcanizing unit in an Eastern tire plant. The top section of this mold being prepared to vulcanize a large bullet-sealing gasoline tank, weighs sixteen tons and can also be used to vulcanize tires over ten feet in diameter

Giant tire manufacturer. This husky workman, standing six feet four in...

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

Oil dripping from olive pulp under hydraulic pressure. Lindsay, California

Oil dripping from olive pulp under hydraulic pressure. Lindsay, Califo...

Public domain photograph of California in 1930s, 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.

Washington, D.C. The U.S. Weather Bureau station at the National Airport. High frequency radio receiver recording signals from small radio transmitter attached to radiosonde balloon aloft. The signals reveal temperature, humidity and pressure at various altitudes

Washington, D.C. The U.S. Weather Bureau station at the National Airpo...

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

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, started by the WPA (Work Projects Administration), now conducted by the state (?) vocational education department. Women pay three cents each for cans and two cents per can for use of the pressure cooker. Mrs. Fred Kemper(left), and Mrs. Roland Kemper canning asparagus that they bought in the market

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, starte...

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

Battelle Memorial Institute, First Hot Isostatic Pressure Vessel, 505 King Avenue, Ohio State University, Columbus, Franklin County, OH

Battelle Memorial Institute, First Hot Isostatic Pressure Vessel, 505 ...

Significance: Conceived by Batelle researchers in 1955, the hot isostatic pressure (HIP) vessel is now used worldwide to manufacture ceramic and advanced alloys and for fabricating complex-shaped parts such as ... More

National Archives. Washington, D.C., Nov. 22. In the powerful press, the sheets of acetate, under heat and pressure 'melt' into the pores of the paper and adhere to each other as well. One additional advantage of this process is that, after being pressed with the sheets of cellulose acetate, the paper is thinner and takes up less room than it did originally. The result is a sheet of paper and acetate which comes off the polished metal plates as a single sheet. Tests for the aging of this material made by the Bureau of Standards in Washington have shown that this treatment of the paper, called laminating is as permanent as it is possible to make any record of paper

National Archives. Washington, D.C., Nov. 22. In the powerful press, t...

Public domain photograph, 1910s-1920s portrait, American, free to use, no copyright restrictions image - Picryl description

Storing butadiene. Butadiene storage tanks at the Institute plant at Institute, West Virginia. The pressure of the butadiene gaseous is so high that only huge spherical tanks can hold large volumes

Storing butadiene. Butadiene storage tanks at the Institute plant at I...

Public domain photograph of 1930s-1940s bridge, no copyright restrictions image - Picryl description

Leg saver. Chester Antos, student at Georgetown University medical school, photographed with the newly devised Emerson suction pressure apparatus which designers believe will prevent amputation in many cases. The mechanical "boot" is to be used in treatment of severe cases of peripheral vascular diseases. The device was developed by Dr. Louis A. Hermann of Cincinnati. By increasing and decreasing the air pressure alternatively, the "boot" tends to stimulate circulation through the leg. The pump boot is a gift to Georgetown University Hospital from an alumnus. 11/12/35

Leg saver. Chester Antos, student at Georgetown University medical sch...

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

Home supervisor demonstrating use of pressure cooker to wife of rehabilitation borrower. Chippewa County, Wisconsin

Home supervisor demonstrating use of pressure cooker to wife of rehabi...

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

Food canned with pressure cooker. Red River Valley Farms, North Dakota

Food canned with pressure cooker. Red River Valley Farms, North Dakota

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

Canning milk with pressure cooker in project family's home. Terrebonne Project, Schriever, Louisiana

Canning milk with pressure cooker in project family's home. Terrebonne...

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

Wife of FSA (Farm Security Administration) borrower discussing pressure cooker with home supervisor. Mille Lacs County, Minnesota

Wife of FSA (Farm Security Administration) borrower discussing pressur...

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

Defense housing, Erie, Pennsylvania. B.J. Rogan and a fellow worker enjoy a quiet evening of cards in his defense trailer home. The seats pull out, pullman fashion, to form a bed by night. Notice the gasoline pressure stove and heater at left

Defense housing, Erie, Pennsylvania. B.J. Rogan and a fellow worker en...

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

Woodville, California. FSA (Farm Security Administration) farm workers' community. Doctor pointing out "pressure spot" to stop arterial bleeding at the first aid class

Woodville, California. FSA (Farm Security Administration) farm workers...

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

Forest Products Laboratory, Madison, Wisconsin. Testing a block of wood to show the effect of compression parallel to the grain. As pressure is applied to the block, a lamb's roller extensometer is used to plot the effect on a graph

Forest Products Laboratory, Madison, Wisconsin. Testing a block of woo...

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

Lindsay, California. The pressure of the olive press must be carefully watched, for different degrees of pressure are prescribed for the two pressings. The first yields the virgin oil, about twenty-five percent of the total oil content of the olives; the second yields refined oil

Lindsay, California. The pressure of the olive press must be carefully...

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.

When sheet metal parts are cut on the router, they go to the hydropress department where they are placed on masonite dies and pressed to the proper shape under 3000 tons pressure

When sheet metal parts are cut on the router, they go to the hydropres...

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. Like the chef who eats his own cooking, Owens-Corning Fiberglass Corporation uses its own fiberglass pipe covering. Here a maintenance man at one of the plants applies weatherproof paint to a section of high pressure steam piping. More than 200 miles of similar pipe covering is now conserving heat in Army cantonments throughout the country

Fiberglass manufacture, Owens-Corning, Toledo, Ohio. Like the chef who...

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

Holabird ordnance depot, Baltimore, Maryland. After having been repaired, tires which need only spot recapping are cured in these section molds. They remain in these molds under pressure for about one hour and forty-five minutes

Holabird ordnance depot, Baltimore, Maryland. After having been repair...

Picryl description: Public domain photograph of a car, 1930s, free to use, no copyright restrictions.

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, started by the WPA (Work Projects Administration), now conducted by the state (?) vocational education department. Women pay three cents each for cans and two cents per can for use of the pressure cooker. Left to right; Mrs. J. Payater Holt and Mrs. Hampden Lawsen of Louisville preparing string beans for canning. The beans were raised by Mrs. Holt in her victory garden

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, starte...

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

Larry checks tire pressure of his car.

Larry checks tire pressure of his car.

Forms part of a group of images documenting machinist Larry Schneider's machine shop and his family at their home in Hawthorne, New Jersey. Larry is a machinist who works at Watson Machine International in Paterson.

[Low pressure cylinder for 3-cyl. comp. eng.]

[Low pressure cylinder for 3-cyl. comp. eng.]

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

[New York City fireman turning on high pressure hoses at hydrant. July 1908]

[New York City fireman turning on high pressure hoses at hydrant. July...

Title and other information transcribed from unverified, old caption card data and item. George Grantham Bain Collection (Library of Congress). Caption card tracings: Shelf.

Wash. D.C. Cross examiner. Rep. Frederick R. Lehlbach (R. of N.J.) of the House Rules Lobby Investigation snapped as he fired questions regarding lobbying and vote influencing practices, at Thomas G. Corcoran, New Deal Brain Tester, who has been accused of using pressure on Rep. Ralph Brewster's vote on the recent Utility "death sentence." 7/10/35

Wash. D.C. Cross examiner. Rep. Frederick R. Lehlbach (R. of N.J.) of ...

A group of men sitting around a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

FSA (Farm Security Administration) home supervisor assisting wife and daughter of Frederick Oliver, tenant purchase client, in canning with new pressure cooker. Summerton, South Carolina

FSA (Farm Security Administration) home supervisor assisting wife and ...

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

Veteran Polish weather expert joins staff of Smithsonian Institution. Washington, D.C. March 14. With home, laboratory, and invaluable records of years presumably lost in the recent Polish War, Dr. Henryk Arctowski, of the University of Lvov, one of Poland's foremost scientists and former Antarctic explorer, has started at the Smithsonian Institution the monumental job of determining direct effects of changes in the Sun's radiation on weather conditions on Earth. Recognized in all countries as one of the greatest living authorities on world weather, Dr. Arctowski is continuing his studies in efforts to find relationships between solar conditions and rainfall, barometric pressure, etc., at various places on Earth. His earliest meteorlogical observation began as a young geologist on the Antarctic exploring ship Belgica in 1897-99. For release morning papers of March 18 - 40

Veteran Polish weather expert joins staff of Smithsonian Institution. ...

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

This huge hydropress is operated day and night by women employees. Thousands of sheet metal parts are formed daily on this press. Worked from four sides using same die. Beds with metal to be shaped is rolled into place under hydraulic press. 3000 tons total pressure

This huge hydropress is operated day and night by women employees. Tho...

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

Tulsa, Oklahoma. Cleaning an engine with a steam pressure gun in the Frisco railroad yards at night

Tulsa, Oklahoma. Cleaning an engine with a steam pressure gun in the F...

Public domain photograph of a steam locomotive, train car, railroad, railway, 19th-20th century, free to use, no copyright restrictions image - Picryl description

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, started by the WPA (Work Projects Administration), now conducted by the state (?) vocational education department. Women pay three cents each for cans and two cents per can for use of the pressure cooker. Girls canning some of the beans raised in their victory gardens

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, starte...

Public domain photograph of 3d object museum collection, metal, no copyright restrictions image - Picryl description

High pressure steamboat Mayflower first class packet between St. Louis and New Orleans on the Mississippi River - Capt. Joseph Brown.

High pressure steamboat Mayflower first class packet between St. Louis...

Artist: Charles Parsons. Currier & Ives : a catalogue raisonné / compiled by Gale Research. Detroit, MI : Gale Research, c1983, no. 3052

Battelle Memorial Institute, First Hot Isostatic Pressure Vessel, 505 King Avenue, Ohio State University, Columbus, Franklin County, OH

Battelle Memorial Institute, First Hot Isostatic Pressure Vessel, 505 ...

Significance: Conceived by Batelle researchers in 1955, the hot isostatic pressure (HIP) vessel is now used worldwide to manufacture ceramic and advanced alloys and for fabricating complex-shaped parts such as ... More

Battelle Memorial Institute, First Hot Isostatic Pressure Vessel, 505 King Avenue, Ohio State University, Columbus, Franklin County, OH

Battelle Memorial Institute, First Hot Isostatic Pressure Vessel, 505 ...

Significance: Conceived by Batelle researchers in 1955, the hot isostatic pressure (HIP) vessel is now used worldwide to manufacture ceramic and advanced alloys and for fabricating complex-shaped parts such as ... More

Bonanza Hydraulic Mining Site, Flume & Pressure Box, Swamp Gulch, Salmon, Lemhi County, ID

Bonanza Hydraulic Mining Site, Flume & Pressure Box, Swamp Gulch, Salm...

Significance: The Bonanza Hydraulic Mining Site is significant as an exceptionally well-preserved, early twentieth century, placer mining site. Survey number: HAER ID-23-C

[Eight-foot mercury barometer and water pumping demonstration from four-story house proving law that height of fluids raised by suction or pressure varies inversely to its specific gravity]

[Eight-foot mercury barometer and water pumping demonstration from fou...

Public domain image of a historic building, 16th-17th century architecture, free to use, no copyright restrictions image - Picryl description.

[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

[Engraved frontispiece showing pressure cookers opposite the title page to a book suggesting the use of steam as a force to drive an engine]

[Engraved frontispiece showing pressure cookers opposite the title pag...

Illus. in: A new digester or engine for softning bones, .... / by Denis Papin M.D. London : Printed by J. M. for H. Bonwicke, 1681. Published in: The tradition of technology : Landmarks of Western technology .... More

National Archives. Washington, D.C., Nov. 22. Preservation of documents has long been a problem in libraries and offices of record. It was once done by a process known as 'crepelining,' which consisted in placing coarsely woven silk over and under the paper to be preserved with the use of adhesive. The most modern process now used is called the laminating process and consists in sandwiching the document between two sheets of thin, transparent cellulose acetate. This is then placed between two highly polished metal plates and subjected to heat and pressure in a hydraulic press

National Archives. Washington, D.C., Nov. 22. Preservation of document...

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

Miss Chappelle, FSA (Farm Security Administration) home supervisor, instructing Mrs. Handy, FSA borrower, in use of pressure cooker. Saint Mary's County, Maryland

Miss Chappelle, FSA (Farm Security Administration) home supervisor, in...

Picryl description: Public domain image of a woman working, women labor, 1940s, economic conditions, home front, world war two, free to use, no copyright restrictions.

Mrs. Clarence N. Pace canning English peas in her pressure cooker with Miss Louise Martin, the home management supervisor, helping. Transylvania Project, Louisiana

Mrs. Clarence N. Pace canning English peas in her pressure cooker with...

Picryl description: Public domain photograph of the 1930s - 1940s, woman, female portrait, United States, free to use, no copyright restrictions.

Mrs. Thornton, wife of Farm Security Administration borrower, canning vegetables with pressure cooker. Story County, Iowa

Mrs. Thornton, wife of Farm Security Administration borrower, canning ...

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

Home supervisor showing FSA (Farm Security Administration) borrower how to use pressure cooker. Mille Lacs County, Minnesota

Home supervisor showing FSA (Farm Security Administration) borrower ho...

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

Wife of FSA (Farm Security Administration) borrower removing canned cherries from pressure cooker. Itasca County, Minnesota, cut-over area

Wife of FSA (Farm Security Administration) borrower removing canned ch...

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

How to conserve household gas. One of the best ways to save gas is to use a pressure cooker if you have one. These utensils save by greatly reducing the time of cooking. Another method to save gas is to use triplicate sets--three triangular cooking pots which fit together to make a circle. These make it possible to cook three vegetables on one burner

How to conserve household gas. One of the best ways to save gas is to ...

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

Scrap collection. The heavy door on the baling press is closed and locked. The door must be strong enough to withstand the terrific pressure which is exerted sideways as well as upward on the scrap paper inside. Shapiro Company, Baltimore, Maryland

Scrap collection. The heavy door on the baling press is closed and loc...

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

Putting bars up to hold bags of olive pulp in place while under the hydraulic pressure which forces out the oil. Lindsay, California. About seventy-five percent of the oil content of the olives is removed by the first application of pressure; it is the oil obtained in the first pressing which is termed virgin oil

Putting bars up to hold bags of olive pulp in place while under the hy...

Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

Washington, D.C. The U.S. Weather Bureau station at the National Airport. This high frequency radio transmitter is small, but very effective. It is attached to a large balloon and transmitts signals which reveal temperature, humidity and pressure as it ascends to various altitudes

Washington, D.C. The U.S. Weather Bureau station at the National Airpo...

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

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, started by the WPA (Work Projects Administration), now conducted by the state (?) vocational education department. Women pay three cents each for cans and two cents per can for use of the pressure cooker. Canning beans and greens raised in a victory garden

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, starte...

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

Larry checks tire pressure of his car.

Larry checks tire pressure of his car.

Forms part of a group of images documenting machinist Larry Schneider's machine shop and his family at their home in Hawthorne, New Jersey. Larry is a machinist who works at Watson Machine International in Paterson.

Childs-Irving Hydroelectric Project, Childs System, Pressure Tunnel Intake, Forest Service Road 708/502, Camp Verde, Yavapai County, AZ

Childs-Irving Hydroelectric Project, Childs System, Pressure Tunnel In...

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

Bonanza Hydraulic Mining Site, Flume & Pressure Box, Swamp Gulch, Salmon, Lemhi County, ID

Bonanza Hydraulic Mining Site, Flume & Pressure Box, Swamp Gulch, Salm...

Significance: The Bonanza Hydraulic Mining Site is significant as an exceptionally well-preserved, early twentieth century, placer mining site. Survey number: HAER ID-23-C

Differential pressure valves, Washington, D.C.

Differential pressure valves, Washington, D.C.

U.S. Capitol? (drawing). This record contains unverified data from caption card.

Case for differential pressure valve

Case for differential pressure valve

U.S. Capitol? (drawing). This record contains unverified data from caption card.

Shackleton's expedition to the Antarctic Endurance after ice pressure was released.

Shackleton's expedition to the Antarctic Endurance after ice pressure ...

Photograph shows the Endurance, partially submerged and mast heads broken, stuck in the ice; dog team hitched together sit in snow away from ship. No. 212299.

Storing butadiene. The pressure of the butadiene gaseous is so high that huge spherical tanks such as these can hold large volumes

Storing butadiene. The pressure of the butadiene gaseous is so high th...

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

Wash. D.C. Put on pressure. Sen. Lynn J. Frazier (R. of N.D.) and Sen. Hugo L. Black (D. of Ala.) Chr. of the newly appointed Senate Lobby Investigation Com. which opened the doors Friday for utility hearings. This picture taken Friday during the hearing. 7/12/35

Wash. D.C. Put on pressure. Sen. Lynn J. Frazier (R. of N.D.) and Sen....

A group of men sitting at a table with papers. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Building on Theodore F. Frank farm near Anthon, Iowa. He was owner-operator and built up his one hundred sixty acre farm on his own earnings. Pressure of depression and drought made it necessary for him to mortgage his farm. The farm is now owned hy a loan company. The buildings are in excellent repair. Family without resources except those livestock necessary to keep on farming

Building on Theodore F. Frank farm near Anthon, Iowa. He was owner-ope...

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

Testing strength of glass panels. Washington, D.C., June 21. With glass blocks being used more and more these days in the construction [of] buildings, The National Bureau of Standards is conducting extensive tests to determine how much wind pressure the panels will stand. So far the panels have resisted 633 pounds wind load. Pictured conducting the tests are, left to right: Dr. C.H. Hahner, R.C. Carter, and A.S. Endler, all of the Bureau, 6/21/38

Testing strength of glass panels. Washington, D.C., June 21. With glas...

Public domain historic photograph of Washington DC, free to use, no copyright restrictions image - Picryl description

Lancaster County, Pennsylvania. The second pressure pump in the cellar of the house on the Enos Royer farm. The family's milk supply is stored here

Lancaster County, Pennsylvania. The second pressure pump in the cellar...

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

Project nurse Lillie Mae McCormick assists Dr. Thomas M. Adams as he takes Annie Maude Daniels' blood pressure on table in health clinic. Flint River Farms, Georgia

Project nurse Lillie Mae McCormick assists Dr. Thomas M. Adams as he t...

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

The guillotine. Having slid down the trough on the lower left, the bale of raw rubber is now being squeezed against the knife blades on the left under terrific pressure. These blades fan out into eight selections, cut the rubber into eights like an orange divides into sections. General Tires (Firestone), Akron, Ohio

The guillotine. Having slid down the trough on the lower left, the bal...

Picryl description: Public domain photograph of costume accessory, free to use, no copyright restrictions image.

Knox County, Tennessee (Tennessee Valley Authority (TVA)). Mrs. Wiegel uses a pressure cooker on her electric stove

Knox County, Tennessee (Tennessee Valley Authority (TVA)). Mrs. Wiegel...

Picryl description: Public domain photograph of the 1930s - 1940s, woman, female portrait, United States, free to use, no copyright restrictions.

Another blow for Victory. A cowl for an Army jeep is stamped from a flat steel sheet in one of the world's largest automotive plants. The giant 126-ton Bliss double-action press, exerting 350 tons pressure on the sheet, forms a cowl in one operation. Ford Lincoln plant, Michigan

Another blow for Victory. A cowl for an Army jeep is stamped from a fl...

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

Detroit, Michigan. Steps in the manufacture of casings for 105 mm. shells in the Budd wheel plant. Painting on lubricating fluid before cold nosing a rough turned shell. Cold nosing is a process of squeezing the end of a shell together by tremendous pressure

Detroit, Michigan. Steps in the manufacture of casings for 105 mm. she...

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. Symington-Gould, makers of tank, ship and railroad parts. Sand slinger operated by a woman. Sand is forced onto pattern with air pressure. The operator wears safety goggles and a dust-proof noseguard to protect herself from ricocheting sand and must rest every twenty minutes or so

Buffalo, New York. Symington-Gould, makers of tank, ship and railroad ...

Picryl description: Public domain image of a ship in New York harbor, free to use, no copyright restrictions.

Preparation for point rationing. A home economics class of the McKinley High School, Washington, D.C., gets a practical lesson in home canning of fruits and vegetables, looking toward supplementing the limited allowance of canned foods available to holders of war ration book two. Mrs. Elouise Gummer, their teacher, explains the use of pressure cooker for canning

Preparation for point rationing. A home economics class of the McKinle...

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

America's petroleum industries pour out fuel and lubricants for the United Nations. These three new catalytic oil "cracking" units are turning out gasoline for the new machines of war at the plant of a large U.S. refining company in the southern U.S. state of Louisiana. In the eight years of the development of the "cracking" process in producing gasoline, it is estimated that 1,000,000,000 barrels of crude oil have been saved by the oil industry. The "cracking" process subjects crude oil to heat and pressure by which the oil molecules are broken down and made to release more of their derivable elements. The drain of war on such gasoline producing units as these is shown by the fact that the U.S. has manufactured 180,000 planes since December 7, 1941, propelled by gasoline motors. For example, one U.S. Liberator four-motored bomber in a six-hour bombing run consumes 1,800 gallons of gasoline, enough to last the average U.S. civilian motorist from three to five years

America's petroleum industries pour out fuel and lubricants for the Un...

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

Battelle Memorial Institute, First Hot Isostatic Pressure Vessel, 505 King Avenue, Ohio State University, Columbus, Franklin County, OH

Battelle Memorial Institute, First Hot Isostatic Pressure Vessel, 505 ...

Significance: Conceived by Batelle researchers in 1955, the hot isostatic pressure (HIP) vessel is now used worldwide to manufacture ceramic and advanced alloys and for fabricating complex-shaped parts such as ... More

Studying why fruits taste that way. E.K. Nelson of the Department of Agriculture is shown making tests with an apparatus which the Department imported from Germany for the purpose of studying the essential oils or "flavor-giving" content of fruits and vegetables. At present chemists are acquainted with the essential oils of only a few fruits, such as some of the citrus group. The apparatus is a vacuum distill which permits the distillation of liquids at temperatures much lower than usual by reducing the pressure, 1/10/31

Studying why fruits taste that way. E.K. Nelson of the Department of A...

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

Pumping bot examined. Students at Georgetown University Hospital gather around Chester Antos, another student, while they examine a newly devised Emerson suction pressure apparatus used to stimulate circulation in legs and feet when certain diseases threaten to neccessitate amputations. The "boot", invented by Dr. Louis A. Hermann of Cincinnati, induces circulation by alternately increasing and decreasing air pressure. It is considered a consequential physiological development by doctors who examined it here, 11/12/35

Pumping bot examined. Students at Georgetown University Hospital gathe...

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

Compressors. Throughout plants of this type gaseous products frequently have to be compressed and cooled in what are called "heatexchangers." In the cycle of reaction, the pressure drops and it must be compressed and cooled.

Compressors. Throughout plants of this type gaseous products frequentl...

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

Not peppermint candy but an airplane strut. Washington, D.C., May 3. This piece of aluminum alloy which is used in airplane construction is shown after being in the torque machine. The pieces to be tested are locked in the vise and twisted until they break. This piece when started the lines on the pipe were parallel and ran the length of t he pipe. After coming out of the machine the lines are like a corkscrew, before the breakig point is reached. A.E. McPhereson is applying the pressure, 5/3/1937

Not peppermint candy but an airplane strut. Washington, D.C., May 3. T...

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

Huge drop hammers work day and night forming sheet metal parts for United Nations bombers and fighters at the North American Aviation, Inc., plant, Inglewood, Calif. The heavy hemp rope is used to snub the hammer so that it forms the part under proper pressure and rises clear of the work after each operation. 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

Huge drop hammers work day and night forming sheet metal parts for Uni...

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

Defense housing, Erie, Pennsylvania. A central utility building (right) with toilets, showers, and laundry facilities is maintained for every sixty trailers on the site. Each trailer, with its 25 x 50 foot plot of ground, is assured of privacy and plenty of sun and fresh air. Each trailer is equipped with a gasoline pressure stove, ice-box, davenport beds and gate leg tables. Each can accommodate up to four people

Defense housing, Erie, Pennsylvania. A central utility building (right...

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

Fort Story coast defense. A tough job for soldiers: shoving the breech block of the giant howitzer into place. The screw threads help the block to withstand millions of foot pounds of pressure caused by the exploding charge

Fort Story coast defense. A tough job for soldiers: shoving the breech...

Picryl description: Public domain image of military training, armed forces fort, camp, exercise activity, free to use, no copyright restrictions.

After the oil is extracted from chopped olives by means of hydraulic pressure, the oily mixture is pumped into settling tanks where the oil rises to the top and the non-oily liquids sink to the bottom. Lindsay, California

After the oil is extracted from chopped olives by means of hydraulic p...

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

Cincinnati, Ohio. Preparing canned pork (Russian: "svinaia tushonka") for lend-lease shipment to the USSR at the Kroger grocery and baking company. Inspectors see each can after it comes out of the pressure cooker, where the pork is cooked for two and one-half hours at 160 to 250 degrees. Left to right: Pearl Isen, age twenty-seven, ex-housewife, has a husband and brother in the United States Army; Faye Brinsen, age twenty-two, ex-housewife, whose husband is in defense work

Cincinnati, Ohio. Preparing canned pork (Russian: "svinaia tushonka") ...

Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, started by the WPA (Work Projects Administration), now conducted by the state (?) vocational education department. Women pay three cents each for cans and two cents per can for use of the pressure cooker. Mrs. Thomas Benton of Louisville, whose husband is in the U.S. Army, skinning beets that she bought in town

Jeffersontown, Kentucky. The Jefferson County ommunity cannery, starte...

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.

FSA (Farm Security Administration) supervisor demonstrating canning with a pressure cooker before a group of FSA supervisors and officials at a district meeting. San Angelo, Texas

FSA (Farm Security Administration) supervisor demonstrating canning wi...

Picryl description: Public domain image of cooking, kitchen, food preparation, 1930s, mid-20th-century United States, free to use, no copyright restrictions.

A black and white photo of a group of people. Office of War Information Photograph

A black and white photo of a group of people. Office of War Informatio...

Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

Forest Products Laboratory, Madison, Wisconsin. A compression test on a veneer cylinder using an electrical strain gauge. Great pressure is exerted on the cylinder and the resultant strains and stresses are registered by the electrical contacts on its surface. Much experimenting is being done on veneers suitable for use in aircraft

Forest Products Laboratory, Madison, Wisconsin. A compression test on ...

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

Lindsay, California. The pressure of the olive press must be carefully watched, for different degrees of pressure are prescribed for the two pressings. The first yields the virgin oil, about twenty-five percent of the total oil content of the olives; the second yields refined oil

Lindsay, California. The pressure of the olive press must be carefully...

Title and other information from caption card. Transfer; United States. Office of War Information. Overseas Picture Division. Washington Division; 1944. More information about the FSA/OWI Collection is availabl... More

Washington public schools go to war. The public schools of Washington, D.C., like those in most other sections of the country, have revised their curricula to fit the pupils for fuller participation in the war effort. They have gone all-out for the Program of Civilian Defense and at the Margaret Murray Washington Vocational School, courses in home-making and the preservation of foods are now taught all young women. Photo shows Miss Laura Russell removing a can of string beans from pressure cooker

Washington public schools go to war. The public schools of Washington,...

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

Firehouse station number four. Washington, D.C. Lieutenant Mills giving a lesson in water pressure to new firemen who serve a year's probation period

Firehouse station number four. Washington, D.C. Lieutenant Mills givin...

Picryl description: Public domain image of a classroom, college auditorium, school, students, teacher, teaching, studying, education, free to use, no copyright restrictions.

Putting tire into curing mold. From the vacuum expander, the potential new truck tire is taken to this "watch-case" curing mold in which it is baked under high heat and pressure for a long time. The exact time and temperature varies with the type and size of tire. The airbag inside the carcass is filled with live steam during this process so that heat is added from both inside and out. The mold contains the tread pattern, or design, as well as all markings which will appear on sidewall. Under this heat and pressure the rubber turns semi-liquid, and flows into every crevice, completely bonding the rubber processed fabric carcass to the cushion, the cushion to the tread. After this operation it is now one unit--a complete tire. Firestone (General) Tires, Akron, Ohio

Putting tire into curing mold. From the vacuum expander, the potential...

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

Washington, D.C. Applying pressure to pressure point as part of a course in first aid, aboard a Potomac River boat

Washington, D.C. Applying pressure to pressure point as part of a cour...

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

Workmen put crushed olives into heavy bags which will be put under hydraulic pressure to extract the oil. It takes an average of fifty-six pounds of olives to make a gallon of oil. Lindsay, California

Workmen put crushed olives into heavy bags which will be put under hyd...

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.

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