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Patent drawing - Navigation aérienne. Solution dʹun grand problème par lʹemploi des voiles mobiles ... Systéme Augte. Lanteigne, menuisier mʹecen., ... / dessiné par lʹauteur. Public domain image

Scaled design drawings for a patent show Aug. Lanteigne's system of aerial navigation, which used a continuous belt of sails to achieve propulsion. (Source: A.G. Renstrom, LC staff, 1981-82.) Tissandier collection.

Call at the book store and get a solution of our national difficulties, and the science of Republican government. By a citizen of the United States. A pamphlet of sixty pages. Published by M. Warren [A review of the book by John F. Wright] Octob

Available also through the Library of Congress web site in two forms: as facsimile page images and as full text in SGML. Printed Ephemera Collection; Portfolio 234, Folder 24a.

Puck's solution of the Indian question

Caricature showing Indians afraid of the Salvation Army's "3d Regiment Salvation Shouters." Color engraving after drawing by F. Opper. Illus. in: Puck, 1890 Dec. 17, p. 300. Ref. copy may be in SSF (Gr) - INDIA More

New York Board of Trade says 'nonsense' to charges on capital strike. Washington, D.C., June 3. M.L. Seidman, Chairman of the New York Board of Trade Tax Committee suggested a 10 point tax program to the House Ways and Means Committee. He brought out that business would lose its fear of striking out for recovery if it knew in advance where Congress would place taxes. He said that removal of numerous taxes and replacement of that federal income by broadening of the income tax base might be a solution. Said he, ' We hear it said that capital is on strike. But, that is sheer nonsense. What we lack is a willingness to run the risk of employment against too many odds'

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

Simple solution of the Panama labor problem / Ehrhart.

Illustration shows a frenzy of activity as many politicians and capitalists join the labor forces to construct the Panama Canal; Theodore Shonts, chairman of the Isthmian Canal Commission, is standing on the ri More

"De-cootieized" and happy These men of B Battery, 102nd F.A., have had their baths, their cresol solution, their fresh underclothing, new or disinfected O.D. clothing, their "cooties" are gone and they are going "home" as merry as small boys from a school picnic (Saacy, August 10, 1918).

Photograph shows soldiers in a horse-drawn wagon. No. 895-G8. In album: Photographic supplement to historical record of quartermaster corps activities A.E.F. Vol. 19-A, p. 69.

Secretary Wallace talks to 'little businessmen.' Washington, D.C., May 23. Secretary of Agriculture Henry Wallace told the American Retail Federation's Forum today that a flow of private capital into investment channels is essential before any real solution to the problem of agriculture surpluses can be found. Left to right: Louis E. Kirstein, Chairman of the Board of Trustees and Secretary Wallace

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Ranking members of House Ways and Means Comm. Left, John N. Garner of Texas, Democrat, and William R. Green of Iowa, Republican, both have difference ideas as to the solution of the tax problem

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Brains of Aeronautic World represented on National Advisory Committee for Aeronautics. The National Advisory Committee for Aeronautics is photographed in Washington the other day when they met at the Navy Department. The duties of the Committee, as provided by Congress, are to supervise and direct the scientific study of the problems of flight, with a view to their practical solution. In the photograph, left to right: G.W. Lewis; Charles G. Abbet, Secretary of the Smithsonian Institution; Orville Wright, Inventor of the airplane; Commander John H. Towers; U.S.N., here of the first trans-atlantic flight in 1919; Joseph S. Amos, Chairman; Brig. General Benjamin D. Foulois, first U.S. Army Aviator; William P. MacCracken, former Secretary of Commerce for Aviation; Charles F. Marvin, Chief U.S. Weather Bureau; David W. Taylor, Vice Chairman. Standing is John F. Victory, Secretary

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

Protestant, Catholic, and Jewish leaders meet in Washington to assist jobless. The problem of unemployment is not only economic, but ethical and moral as well, and responsibility for its solution rests upon the whole American people. President Hoover was advised today by a delegation representing three national church groups sponsoring the National Conference on Permanent Preventives of Unemployment, meeting in Washington this week. Heading the delegation to the White House were, left to right: Rabbi Edward L. Israel, chairman of the Social Justice Commission, Central Conference of American Rabbis; Reverend R.A. McGowan, of the social action department, National Catholic Welfare Conference; and James Myers, Industrial Secretary, Social Service Commission, Federal Council of Churches, 1/27/31

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Better housing The solution to infant mortality in the slums / / Benj. Sheer.

Poster promoting better housing as a solution for high rates of infant mortality in the slums, showing a blueprint of new housing next to existing tenement buildings over which stands the figure of Death. Date More

A possible solution to the dust problem is irrigation. This farmer is pumping water from a well to his parched fields. Cimarron County, Oklahoma

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

Green o.k.'s Wagner Housing Bill before Senate Committee. Washington, D.C., April 14. Appearing before the Senate Subcommittee on Education and Labor today, A.F. of L. President William Green endorsed the Wagner $1,040,000,000 [?] Housing Bill and called it "a modest beginning toward the solution of one of our greatest social and economic problems." Green, added, the bill is needed to provide low-rent housing for the workers of the country in order that their purchasing power may not be curtailed as rents rise under an "acute" housing shortage, 4/14/1937

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

Judiciary Committee hears N.Y. Supreme Justice on proposed Court reform plan. Washington, D.C., March 20. Ferdinand Pecora (left) New York Supreme Court Justice and former member of the Securities and Exchange Commission, told the Senate Judiciary Committee today that he favored the president's plan for reorganization of the Judiciary. Pecora drew upon his experience as an investigator for the Senate Banking and Currency Committee to outline a broad situation which he said required the President's program as a solution. He is shown with Senator Royal S. Copeland of New York, 3/20/1937

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Gilberton, Pennsylvania. A Chance coal separator in operation in the Saint Nicholas breaker. The cone vat, filled with sand and water and kept in solution by agitation, causes the coal to float above the rock, allowing the rock to be taken from the bottom of the cone. Bits of timber and other debris float on top and are skimmed off

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

Railroad executives meet in emergency session. Washington, D.C., March 11. Leading executive of the railroad industry met here today in emergency session to study what they describe as the most critical financial condition in railroad history. During the meeting the executives, all members of the Association of American Railroads, considered a proposed new "National Railway Policy" as a solution to their financial problems. Left to right: (seated) Carl R. Gray, Vice-Chairman, Board of directors, Union Pacific Railroad; J.M. Kurn, Trustee, St. Louis-San Francisco Railway; C.E. Denney, President, Erie Railroad; E.S. French, President, Boston and Main Railroad; E.M. Durham, Jr., Chief Executive Officer, Chicago, Rock Island and Pacific Railway; and Daniel Willard, President, Baltimore and Ohio Railroad. Standing, left to right: S.T. Bledsoe, President, Atchison, Topeka and Santa Fe Railway; George B. Elliott, President, Atlantic Coast Line Railroad; Hale Holden, Chairman, Southern Pacific; M.W. Clement, President, Pennsylvania Railroad; J.B. Hill, President, Louisville and Nashville Railroad; F.E. Williamson, President, Grand Central System; J.J. Pelley, Chairman (ex-officio) Association of Amn. Railroads; E.E. Norris, President, Southern Railway; and J.J. Forster, Sec. and Treas. Assoc. of Amn. Railroads, 3/11/38

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Tells president solution of railroad problems is key to national recovery. Washington, D.C., March 16. William C. Dickerman, Head of the American Locomotive works, told the president in a conference that solution of the railroad problem was a key to national recovery, 3-16-39

A black and white photo of two men in suits and hats, Library of Congress Harris and Ewing collection Title from unverified caption data received with the Harris & Ewing Collection. Gift; Harris & Ewing, Inc. More

Tells president solution of railroad problems is key to national recovery. Washington, D.C., March 16. William C. Dickerman, Head of the American Locomotive works, told the president in a conference that solution of the railroad problem was a key to national recovery, 3-16-39

A black and white photo of two men in suits and hats. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description

Public Health Service Investigation Commission to the China-Burma highway. Chefang (vicinity), China. Cans with holes punched in them for Paris green dusting by hand. The workmen refused to work when given just one bag on the theory that such work would weigh down one shoulder and just work one arm; two dusters and two bags were the solution

Public domain scan of American poster, United States, free to use, no copyright restrictions image - Picryl description

A black and white photo of a large wheel. Great Depression Era, New Mexico

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

A black and white photo of a large wheel. Great Depression Era, New Mexico

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.

Precipitation tanks at gold mine where gold is precipitated out of cyanide solution. Mogollon, New Mexico

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.

Workman weighing sample of gold ore and cyanide solution to determine if proper concentration of liquid is being maintained. Mogollon, New Mexico

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

Part of wool scouring machine. The metal forks pull the wool through the hot alkaline solution. Wool scouring plant, San Marcos, Texas

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

Large tanks used for mixing powdered gold ore with cyanide solution to extract gold and silver. Gold mine at Mogollon, New Mexico

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

Large tanks used for mixing powdered gold ore with cyanide solution to extract gold and silver, gold mine, Mogollon, New Mexico

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

Method for preserving sweet cream indefinitely discovered by Government expert. Washington, D.C., Jan. 26. Dairymen the world over will benefit from a method discovered by Owen E. Williams, of the Bureau of Dairy Industry, U.S. Department of Agriculture, whereby sweet cream can be preserved indefinitely in sodium chloride, common table salt. To 100 pounds of cream testing 40 per cent butterfat, 7 pounds of salt are added. When the cream is to be delivered once a week from the farm to the creamery, enough salt is placed in the cream jar at the beginning of the week to preserve the week's supply. As more cream is added after each milking, it must be carefully mixed with the salt solution already in the jar. The salt prevents souring and acts as an anti-freeze. To remove the salt, Williams dilutes the thick cream with fresh skim milk and runs the mixture through an ordinary cream separator. The cream may then be used as coffee cream or it may be used in the manufacture of sweet cream butter or in the manufacture of ice cream. 1. Mr. Williams weighs out 7 pounds of sodium chloride - common table salt - which is sufficient to preserve 100 pounds of 40 per cent cream, 1/26/39

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

A black and white photo of a building under construction. Great Depression Era, New Mexico

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

Partly scoured wool coming over the squeezing rolls after the first bath. These rolls after the first bath. These rolls squeeze out most of the first solution along with grease and dirt. Wool then goes into next bath. Wool scouring plant, San Marcos, Texas

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

A black and white photo of a machine in a factory. Great Depression Era, New Mexico

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

Rotary vacuum filter used for removing cyanide solution containing gold from the tailings. Gold mine at Mogollon, New Mexico

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

A black and white photo of a cow in a trough. Office of War Information Photograph

This image is one of the images made by photographers working in Stryker's unit as it existed in a succession of government agencies: the Farm Security Administration (1937-1942). The photographs of the Farm S More

Cattle with hoof rot are driven through these pens which contain solution of blue vitriol on the Cruzen Ranch, Valley County, Idaho

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

Quaker State Refining Company, Oil City, Pennsylvania. These are the solution and vacuum towers of the Quaker State refinery at Oil City, Pennsylvania. This refinery is working at full capacity to assure our military forces of ample supplies of the high-grade lubricants needed to operate ships, guns, tanks, and planes

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

Dipping cups in glaze solution and drying. Shenango Pottery Works, Newcastle, Pennsylvania

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

A black and white photo of a man standing next to a fence. Office of War Information Photograph

This image is one of the images made by photographers working in Stryker's unit as it existed in a succession of government agencies: the Farm Security Administration (1937-1942). The photographs of the Farm S More

Cattle being treated with blue vitriol solution for hoof rot, Cruzen Ranch, Valley County, Idaho

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

Quaker State Refining Company, Oil City, Pennsylvania. These are the solution and vacuum towers of the Quaker State refinery at Oil City, Pennsylvania. This refinery is working at full capacity to assure our military forces of ample supplies of the high-grade lubricants needed to operate ships, guns, tanks, and planes

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

These are the solution and vacuum towers of the Quaker State Refinery, at Oil City, Pennsylvania. This refinery is working at full capacity to assure our military forces of ample supplies for the high-grade lubricants needed to operate ships, guns, tanks, and planes

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

Cattle with hoof rot are driven through these pens which contain solution of blue vitriol. The Cruzen Ranch, Valley County, Idaho

Public domain image of cattle, livestock, farm animals, agriculture, free to use, no copyright restrictions - Picryl description

Quaker State Refining Company, Oil City, Pennsylvania. It's highly skilled work, seeing to it that the oil refined for our military machines is of the highest quality. This worker is inspecting the solution tower for denaphthizing bright stock

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

Cattle being tested with blue vitriol solution for hoof rot, Cruzen Ranch, Valley County, Idaho

Public domain image of cattle, livestock, farm animals, agriculture, free to use, no copyright restrictions - Picryl description

Quaker State Refining Company, Oil City, Pennsylvania. It's highly skilled work, seeing to it that the oil refined for our military machines is of the highest quality. This worker is inspecting the solution tower for denaphthizing bright stock

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

De Soto bomber plant, Detroit, Michigan. Dipping parts that are held by the springs in a plating solution

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

Production. Blood transfusion bottles. Preparing transfusion bottles for blood letting, Elizabeth Homan (left), and Nancy Synnestvedt, employees at Baxter Laboratories, Glenview, Illinois, are shown placing anti-coagulant solution in blood donor bottles

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

Production. War housing trailers. Fifteen gallon water tanks for war housing trailers are made in the metal shop of the Western Trailer Company of Los Angeles. Experiments to find satisfactory substitutes for metal tanks have not been successful to date. The nearest approach to a solution was a specially treated wooden tank

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Production. War housing trailers. Paper replaces steel as material for rounded corners of house trailer tops. These corners, made of successive layers of paper impregnated with a special hardening solution, have great structural strength and are light in weight. Easy installation is another valuable feature of the material as used in the making of war housing trailers at the Los Angeles plant of Western Trailer Company

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

Production. Blood transfusion bottles. Laboratories assembly line at Baxter Laboratories, Glenview, Illinois, showing inspection, labeling and wrapping of blood transfusion bottles containing intravenous solution

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

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running through a series of rolls. From this mill the rods are coiled and are then treated with a dilute solution of sulphuric acid and washed with water after which they are ready to be drawn into wire

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. Blood transfusion bottles. Transfusion bottles containing intravenous solution, are given final inspection by Grace Kruger, one of many women employees at Baxter Laboratories Inc., Glenview, Illinois. When her brother left Baxter's to join the Merchant Marine, Miss Kruger, a former life insurance clerk took his place

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

Feeding white rat with vitamin-rich solution from dehydrated eggs; this is part of procedure in bio-assay method of determining vitamin content of dehydrated eggs. Regional agricultural research laboratory, Albany, California

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

Feeding white rat with vitamin-rich solution from dehydrated eggs; this is part of procedure in bio-assay method of determining vitamin content of dehydrated eggs. Regional agricultural research laboratory. Albany, California

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Production. War housing trailers. Overcoming metal shortage is a big problem in trailer manufacture. Western Trailer Company of Los Angeles has been able to replace metal fenders (wheel wells) successfully with plastic material made by a new process. Paper of forty pounds weight runs from rolls to a tent containing a glue-like solution. After it absorbs this solution, the operator breaks its stiffness by wadding and squeezing

Picryl description: Public domain image of a worker, labor, factory, plant, manufacture, industrial facility, 1930s, mid-20th-century industrial photo, free to use, no copyright restrictions.

Production. War housing trailers. Paper replaces steel as material for trailer wheel wells at the Western Trailer Company's plant in Los Angeles. The picture shows the close bond between successive layers of paper smoothed on over a forging mold. The secret of the final hardness and the strength of the material lies in the formula of the solution with which the paper is impregnated. Round corners of the trailer toes, formerly made of metal, are also made by this process

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

Production. Blood transfusion bottles. Transfusion bottles containing intravenous solution, are given another inspection after being taken from the sterilizer. Women workers are taking over important jobs at Baxter Laboratories, Glenview, Illinois, where plasma containers are prepared for blood banks

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Production. Blood transfusion bottles. Packed and ready for shipment to blood banks, transfusion bottles containing intravenous solution are stacked by Loretta Bueter, an employee of Baxter Laboratories, Glenview, Illinois

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Synthetic rubber (Ameripol). The coagulator and extractor tank is used to bring the latex solution to rubber crumbs. Soap is removed by dilution in soft distilled water. Goodrich

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

Car pooling at Lockheed Vega. The old clunker in front is a school bus, serving a nearby rural community. School busses can transport both war plant warriors and school children in most cases, and may be the solution to transportation problems of workers living in small communities

Picryl description: Public domain image of child labor, exploitation, children workers, economic conditions, free to use, no copyright restrictions.

Conversion. Electric shaver plant. This New England whose normal product is electric dry shavers is now turning out parts for machine tools which will find their place in the war production effort. This bank of Norton grinders which formerly ground motor shafts are now grinding small parts for tools. Tolerances on the war work are only .002 inches whereas the former work demanded much closer tolerances up to .0002 inches. The conversion was accomplished by putting on new grinding wheels, by minor changes in the head and by increasing the feed of the cutting solution. Schick Inc., Stamford, Connecticut

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

Production. Blood transfusion bottles. Sterilizing transfusion bottles containing intravenous solution, are given another inspection after being taken from the sterilizer. Women workers are taking over important jobs at Baxter Laboratories, Glenview, Illinois, where plasma containers are prepared for blood banks

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

New oversize trailer for war workers. Interior of the new oversize bus trailer built almost entirely of non-critical material and designed by Office of Defense Transportation and War Production Board officials with cooperation of private companies. Containing eighty-seven seats(twenty-four drop seats will be installed later), the trailer has a seating capacity nearly three times that of an ordinary city bus and twice that of the largest type of street car. It's one solution to the problem of transporting defense workers from cities to outlying industrial plants

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

New oversize trailer for war workers. Interior of the new oversize bus trailer, built almost entirely of non-critical material and designed by Office of Defense Transportation and War Production Board (WPB) officials with cooperation of private companies. Containing eighty-seven fixed seats (twenty-four drop seats will be installed later), the trailer has a seating capacity nearly three times that of an ordinary city bus and twice that of the largest type of street car. It's one solution to the problem of transporting defense workers from cities to outlying industrial plants

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

Dr. G.I. Jones, associate chemist, conducts tests in determination of vitamin B complex in dehydrated vegetables. Regional agricultural research laboratory, Albany, California. This test must be conducted in light of certain quality which will not destroy vitamins in solution

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

Production. War housing trailers. Paper replaces steel as material for trailer wheel wells at the Western Trailer Company's plant in Los Angeles. Here, a worker shows a finished wheel well ready for installation. It is made of successive layers of paper impregnated with a hardening solution. The finished wells are covered with an asphaltic preservative paint

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

Filtering solution in vitamin determination tests at the regional agricultural research laboratory. Albany, California

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

Pipetting solution in vitamin determination test on dehydrated vegetable. Regional agricultural research laboratory, Albany, California

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

Conversion. Hosiery factory. Permalon solution, a chemical mixture used on mosquito netting is mixed by a worker in a large Eastern mill which formerly made women's stockings. This chemical solution stiffens the netting and prevents subsequent shrinkage, so that the hardest tropical downpour which American armed forces may endure will not alter the netting

Public domain photograph of working people, Great Depression, 1930s, free to use, no copyright restrictions image - Picryl description

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running them through a series of rolls. From this mill the rods are coiled and are then treated with a dilute solution of sulphuric acid and washed with water after which they are ready to be drawn into wire

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

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running them through a series of rolls. From this mill the rods are coiled and are then treated with a dilute solution of sulphuric acid and washed with water after which they are ready to be drawn into wire

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

Conversion. Beverage containers to aviation oxygen cylinders. Removing of non-shatter-chemical solution tank at a rubber factory now producing metal essential for the Army. This bath, which follows the removal of the weld scale, gives the inside of the cylinder a further cleaning and removes all chemicals which may remain from the previous operation. A satin-like surface, absolutely sterile and free from foreign matter, is made permanent in this operation. The cylinder is now also immune to attack from corrosion and other deteriorating elements. Firestone, Akron, Ohio

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

Conversion. Electric shaver plant. This Norton type C six-inch semi-automatic cylindrical grinder in a New England plant used to grind motor shafts for the firm's normal production of electric dry shavers. It is now grinding spring collets which are used in turning machines to hold the work being turned. Such machines are vitally needed for the war production effort. The conversion of the machine was accomplished by replacing the one-inch vitrified aluminum oxide wheel shown here with a three-inch wheel and by enlarging the feed of the cutting solution. Tolerances on this war work are only .002 inches as compared with the tolerances on the normal production of .0002 inches (see pix #D-2974). Schick Inc., Stamford, Connecticut

Picryl description: Public domain image of an automobile, 1940s car, free to use, no copyright restrictions.

Conversion. Electric shaver plant. This Norton type C six-inch semi-automatic cylindrical grinder in a New England plant normally turns out these motor shafts for the firm's electric shavers. It has since been converted to the grinding of spring collets that are used in machine tools being produced to aid the war production effort. The conversion was easily accomplished by replacing the one-inch vitrified aluminum oxide wheel shown here with a three-inch wheel and by enlarging the feed of grinding solution. In this operation normal tolerance is desired (see pix #D-2975). Schick Inc., Stamford, Connecticut

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.

Great Falls, Montana. Anaconda Wire and Cable Company. The finishing mill where copper wire bars are reduced to copper rods by running them through a series of rolls. From this mill the rods are coiled and are then treated with a dilute solution of sulphuric acid and washed with water after which they are ready to be drawn into wire

Public domain photograph - Montana Folklife collection, ethnography, United States, free to use, no copyright restrictions image - Picryl description

Conversion. Beverage containers to aviation oxygen cylinders. Once the two-half cylinders are joined together into a complete shatterproof high altitude flying oxygen cylinder on the production line of a huge rubber factory now producing metal essential for the Army, all traces of inside weld scale must be removed to prevent contamination of oxygen. In this process, a special chemical solution is drawn through the cylinder at controlled temperature and all foreign matter is removed. Firestone, Akron, Ohio

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

Production. Blood transfusion bottles. Transfusion bottles containing intravenous solution, are given another inspection after being taken from the sterilizer. Margie Easton is one of the many women workers at Baxter Laboratories, Glenview, Illinois, where plasma containers are prepared for blood letting

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

Conversion. Flooring to gunstocks. Selected pieces of walnut, carefully cut from large slabs of walnut -- and now known as gunstock butts -- are prepared for a kiln drying operation in a converted hardwood flooring plant. The ends are dipped in a solution of resin and paraffin to prevent checking (splitting slightly) during drying. Louisville, Kentucky

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

Aluminum casting. One of the many operations essential to production of aluminum articles for the Army and Air Forces: lowering basket into quench tank from high temperature heat treating solution furnace. Aluminum Industries Inc., Cincinnati, Ohio

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

Conversion. Hosiery factory. Permalon solution, a chemical mixture used on mosquito netting is mixed by a worker in a large Eastern mill which formerly made women's stockings. This chemical solution stiffens the netting and prevents subsequent shrinkage, so that the hardest tropical downpour which American armed forces may endure will not alter the netting

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

Synthetic rubber (Ameripol). These workers are removing crumbs from the perforated boxes below the coagulating and extractor tanks. The rubber drips into these boxes from the tanks and the water previously added to dissolve the soap in the solution runs off through the perforations in the box. This rubber will now be prepared for the wash mill. Goodrich

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

Conversion. Copper and brass processing. Pickling lengths of copper water tube in a brass and copper mill. After annealing, or softening by heat to reduce brittleness and allow further drawing, tubes are "pickled" in a sulphuric acid solution to remove oxide and scale that result from the anneal. Bundles of the tubes are picked up by electric cranes and transported from the pickle to a rinse bath of water. The tubes are then returned to the drawbench for re-drawing down to smaller diameters. Chase Copper and Brass Company, Euclid, Ohio

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

Production. War housing trailers. Paper replaces steel as material for wheel wells at the Western Trailer Company's plant in Los Angeles. Wadded-up paper, impregnated with a glue-like solution is smoothed into place over molds in continuous layers. The material is self-hardening and self-compressing. When dried, it is sanded, sawed and drilled, and may be installed with nails, screws or bolts

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

Conversion. Electric shaver plant. This worker in a New England plant that normally produces electric dry shavers is now busy turning out spring collets for machine tools to be used in war production. On this Norton type C six-inch semi-automatic cylindrical grinder, he used to turn out rotor shafts for the motor of the shaver. To convert his machine to the larger grinding job, it was necessary only to exchange the normal one-inch vitrified aluminum oxide wheel for a three-inch wheel and to increase the feed of the cooling solution. This worker was used to working to a tolerance of .0002 inches on the motor shafts so he finds it simple to attain the comparatively rough tolerance of .002 inches required on this war work. Schick Inc., Stamford, Connecticut

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

Feeding white rat with vitamin-rich solution from dehydrated eggs; this is part of procedure in bio-assay method of determining vitamin content of dehydrated eggs. Regional agricultural research laboratory, Albany, California

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

Production. War housing trailers. The front end section of a war housing trailer goes into place at the Los Angeles plant of Western Trailer Company. Plastic wheel wells, which will shortly be covered by cabinet work, are made of paper impregnated with a special hardening solution and formed over molds. This material is a very satisfactory substitute for the steel formerly used

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

Production. War housing trailers. Overcoming metal shortage is a big problem in trailer manufacture. Western Trailer Company of Los Angeles has been able to replace metal fenders (wheel wells) successfully with plastic material made by a new process. Paper of forty pounds weight runs from rolls to a tent containing a glue-like solution. After it absorbs this solution, the operator breaks its stiffness by wadding and squeezing

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

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling wax capsules with silver nitrate solution

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

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling ampoules with medicinal solution

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

Madison, Wisconsin. Farm short course school at the University of Wisconsin. Instructor demonstrating before the class the method of dosing hogs with a solution against worms

Public domain photograph of the United States in the 1930s, portraits, people, events, free to use, no copyright restrictions image - Picryl description

Madison, Wisconsin. Farm short course school at the University of Wisconsin. Instructor demonstrating before the class the method of dosing hogs with a solution against worms

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

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Automatically filling ampoules with medicinal solution

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

Madison, Wisconsin. Farm short course school at the University of Wisconsin. Instructor demonstrating before the class the method of dosing hogs with a solution against worms

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

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Making wax capsules used for silver nitrate solution

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

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Filling ampoules with medicinal solution

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

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Inspecting ampoules of medicinal solution

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

Parke, Davis and Company, manufacturing chemists, Detroit, Michigan. Cleaning ampoules before filling with medicinal solution

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