Part of PICRYL.com. Not developed or endorsed by the Library of Congress

library of congress

united states history

safety film negatives

company

aluminum

production

allegheny county

allegheny ludlum

brackenridge

thickness

public
39 media by topic ∙ page 1 of 1
Maintenance man at the Combustion Engineering Co. working at the largest cold steel hydraulic press in the world, Chattanooga, Tenn. This press can shape steel plates several inches in thickness

Maintenance man at the Combustion Engineering Co. working at the large...

Picryl description: Public domain image of an industrial equipment, workshop, assembly line, factory, power engine, 19th-20th century, free to use, no copyright restrictions.

Production. Aluminum. Stacks of aluminum plates ready for the continuous rolling operation. By this process, thickness as fine as paper-thin sheets can be formed

Production. Aluminum. Stacks of aluminum plates ready for the continuo...

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

Production. Veneer for aircraft and other war essentials. Sawmill carriage in a large Midwest veneer plant cuts flitches, or slabs, from an oak log that will be used in making veneer for essential war purposes. The sawyer at the right controls the speed of the carriage and the thickness of the cut. Louisville, Kentucky

Production. Veneer for aircraft and other war essentials. Sawmill carr...

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

Jebel el-Druze & Hauran. Shahbah (ancient Philippopolis founded by Philip the Arab 232 A.D.). Roman pavement partly dug up showing thickness of paving stones

Jebel el-Druze & Hauran. Shahbah (ancient Philippopolis founded by Phi...

Public domain image of Rome, Italy, free to use, no copyright restrictions image - Picryl description

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is being rolled by a three-high 100 inch plate mill to bring it to the proper length, finish, thickness and width

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is b...

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

Checking fabric rolling off calendar. Through this calendaring machine, the heated cords are squeezed through warm rubber under terrific pressure which completely insulates each individual cord in its own sheath of rubber, and produces an extremely strong fabric of the weftless type. Close watch is kept to maintain uniform thickness and texture at all times. In front of the worker is the trough into which a fresh supply of special gum rubber is constantly being added. Firestone (General Tires), Akron, Ohio

Checking fabric rolling off calendar. Through this calendaring machine...

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

Placing the raw tube in the curing mold. This tire worker gives the tubes the same treatment his co-workers give tires; They are cured in a watch-case mold for the required length of time at the proper heat. Naturally tubes take less time than tires because they are single thickness. They are their own "airbags" and are cured inside and out by having live steam forced through them during the cooking process. Firestone (General) Tires, Akron, Ohio

Placing the raw tube in the curing mold. This tire worker gives the tu...

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

House on fifty-seven acre farm rented by Edmond Williams. The house is banked with manure to keep out the cold. This is common practice in Iowa and the thickness of the manure bank is in direct proportion to the disrepair of the house. This is unusually thick. Tenant does not have to lease, but works on crop share plan. Iowa

House on fifty-seven acre farm rented by Edmond Williams. The house is...

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

Steel manufacture, Allegheny-Ludlum. This is a four-high hot rolling mill, which reduces hot steel into ribbons about thirty-five inches wide, to be used either in coils or cut lengths. The steel enters the first of these electrically driven rollers at a thickness of about six inches and emerges, three times as fast, from the fourth only about two inches thick

Steel manufacture, Allegheny-Ludlum. This is a four-high hot rolling m...

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

Steel manufacture, Allegheny-Ludlum. A slab of stainless is about to enter a three-high 110 inch plate mill, just having been removed from a heating furnace. This mill will roll the slab to produce the finish, thickness, width and length required for its use as tank armor

Steel manufacture, Allegheny-Ludlum. A slab of stainless is about to e...

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

Where the water level is so near the surface that you cannot dig a cave, you will have to build your storage house aboveground. This one is made of poles, and covered with straw, leaves and dirt. Grass should be planted on top of the dirt to keep the earth from washing away. The front wall must be made double thickness, with sawdust or other insulating material between to prevent freezing in winter and to keep cool in summer. Take notice that there is a lock on the door

Where the water level is so near the surface that you cannot dig a cav...

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

Production. Veneer for aircraft and other war essentials. Poplar veneer is inspected before being made into panels for combat planes. These rotary-cut strips are carefully checked for quality and thickness in a big Midwest veneer plant. Louisville, Kentucky

Production. Veneer for aircraft and other war essentials. Poplar venee...

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

Gateway of Kairouan showing thickness of walls. These gates until the French occupation were closed at dusk and belated travellers could not enter / Lehnert et Landrock, Tunis.

Gateway of Kairouan showing thickness of walls. These gates until the ...

Blind stamp: Lehnert et Landrock, Tunis. No. 455. No. 5.

Sheffield, Alabama. Reynolds Alloys Company. Workman gauging the thickness of a sheet of aluminum which he is rolling

Sheffield, Alabama. Reynolds Alloys Company. Workman gauging the thick...

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

Production. Aluminum. Stacks of aluminum plates ready for the continuous rolling operation. By this process, thickness as fine as paper-thin sheets can be formed

Production. Aluminum. Stacks of aluminum plates ready for the continuo...

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

A New York City watch manufacturer, making clocks for airplanes, is seeking automatic screw machine facilities for the manufacture of twenty-thousand to thirty-thousand small clock gears. Material: high carbon steel, oil hardened. Dimentsions: O.D. .3685 inches; diameter at base of teeth. .3355 inches; Thirty-six teeth, depth, .0165 inches; thickness, .046 inches; diameter center hole, .1 inches

A New York City watch manufacturer, making clocks for airplanes, is se...

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

Conversion. Copper and brass processing. Stocks of partially completed lengths of seamless copper tube in many sizes. These have still to go through several more draws through dies on drawbenches. Each draw reduces them in diameter and wall thickness, and lengthens them out. Then, before the tubes leaves the mill, the ends will be sawed off straight and clean. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. Stocks of partially completed...

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

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is being rolled by a three-high 100 inch plate mill to bring it to the proper length, finish, thickness and width. It will eventually be used as tank armor

Steel manufacture, Allegheny-Ludlum. This slab of stainless steel is b...

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

Sheffield, Alabama. Reynolds Alloys Company. Adjusting the rolls on the rolling machine in order to change the thickness of an aluminum rod

Sheffield, Alabama. Reynolds Alloys Company. Adjusting the rolls on th...

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

Production. Aluminum. Stacks of aluminum plates ready for the continuous rolling operation. By this process, thickness as fine as paper-thin sheets can be formed

Production. Aluminum. Stacks of aluminum plates ready for the continuo...

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

Production. Veneer for aircraft and other war essentials. Poplar veneer is inspected before being made into panels for combat planes. These rotary-cut strips are carefully checked for quality and thickness in a big Midwest veneer plant. Louisville, Kentucky

Production. Veneer for aircraft and other war essentials. Poplar venee...

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

Conversion. Copper and brass processing. When "slabs" (brass or copper castings in the form of long flat cakes) are being passed rolls, the first step in making sheet metal. A series of passes back and forth through various rolls reduces the "slabs" to thickness desired. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. When "slabs" (brass or copper...

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

Detroit, Michigan. Assembly of Rolls Royce engines at the Packard Motor Car Company. Inspecting piston rings for flatness and uniformity of thickness

Detroit, Michigan. Assembly of Rolls Royce engines at the Packard Moto...

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

Sheffield, Alabama. Reynolds Alloys Company. Checking the thickness of aluminum rod being rolled in the structural mill

Sheffield, Alabama. Reynolds Alloys Company. Checking the thickness of...

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

Where the water level is so near the surface that you cannot dig a cave, you will have to build your storage house aboveground. This one is made of poles, and covered with straw, leaves and dirt. Grass should be planted on top of the dirt to keep the earth from washing away. The front wall must be made double thickness, with sawdust or other insulating material between to prevent freezing in winter and to keep cool in summer. Take notice that there is a lock on the door

Where the water level is so near the surface that you cannot dig a cav...

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

Conversion. Copper and brass processing. Gaging drawn brass bar. Brass or copper supplied in bars finds many uses in the Navy. Most frequently it is cut to short lengths and machined to form parts of machinery, guns, and other implements of war. While dimensions are apt to vary, even slightly, close tolerances as to width and thickness must be observed. Here an inspector is checking dimensions with a micrometer. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. Gaging drawn brass bar. Brass...

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

Burlington, North Carolina. Testing the thickness of tires on a trailer at the Associated Transport Company terminal

Burlington, North Carolina. Testing the thickness of tires on a traile...

Picryl description: Public domain image of industrial or agricultural worker, 1930s, 20th-century, free to use, no copyright restrictions. show less

Production. Milling machines and machine castings. The outside of this machine-tool bed casting has been ground until the bare metal shines brightly. Now rough spots on the inside are being chipped away. Notice the reinforced rigging incorporated in the design of the casting itself -- much stronger and more rigid than a solid thickness of cast iron would be

Production. Milling machines and machine castings. The outside of this...

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.

Certificates of individual production merit awards. Stanley Crawford, 50-year old group leader in the internal inspection department at RCA Manufacturing Co., Camden, New Jersey has been awarded a Certificate of Individual Production Merit. He came to RCA in 1928 as a packer in the shipping department. He has been an inspector since 1940. Crawford suggested and designed a caliper for determining the wall thickness and relationship between a cored interior and outside surface of castings. The use of the caliper saved 13 out of 16 castings which had been rejected. It saved skilled man hours and material

Certificates of individual production merit awards. Stanley Crawford, ...

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

Conversion. Copper and brass processing. Strip copper and brass is usually passed through rolls many times before the desired thickness is obtained. This is placing a roll of strip into a feed box at the entrance to the rolls for intermediate rolling. Chase Copper and Brass Company, Euclid, Ohio

Conversion. Copper and brass processing. Strip copper and brass is usu...

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

Steel manufacture, Allegheny-Ludlum. A ribbon of hot steel rolls forth from high hot rolling mill, where it has been pressed down from about six to two inches in thickness. These ribbons are about thirty-five inches wide, and are used in coils or in cut lengths

Steel manufacture, Allegheny-Ludlum. A ribbon of hot steel rolls forth...

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

Production. Aluminum. Aluminum plates stretch out on this hot roller which produces sheets of various gauges and thickness. The hot-rolling operation forces aluminum through a series of consecutively thinner slits

Production. Aluminum. Aluminum plates stretch out on this hot roller w...

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

Charlotte, North Carolina. Testing the thickness of tires at the terminal of the Associated Transport Company. This is done to make sure the tire with the thickest tread rides on the outside

Charlotte, North Carolina. Testing the thickness of tires at the termi...

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

Ice harvesting, Conneaut Lake, Pennsylvania: Inspecting and gauging the thickness of the ice

Ice harvesting, Conneaut Lake, Pennsylvania: Inspecting and gauging th...

Stereo copyrighted by Keystone View Co. No. 20189. No copyright renewal. This record contains unverified, old data from caption card. Caption card tracings: Photog. I.; Industry Ice 1907; Pennsylvania Conneaut ... More

Sheffield, Alabama. Reynolds Alloys Company. At the cold mill where the thickness of aluminum is considerably reduced by pressure between rollers

Sheffield, Alabama. Reynolds Alloys Company. At the cold mill where th...

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

Conversion. Copper and brass processing. This brass worker is tying down the ends of large coils of strip brass and copper. These coils will be transported to the other rolls in the rolling mill where they will be further reduced in thickness. Chase Brass and Copper Company, Euclid, Ohio

Conversion. Copper and brass processing. This brass worker is tying do...

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

Salvage. Wool reclamation. Layers of reclaimed wool and virgin wool are blended in an Eastern wool-reclamation plant. Here wools of different colors are laid in layers of the same thickness before being fed into a mixing picker. Experimentation and improved processing permit the use of up to eighty-five percent of reclaimed wool in new cloths, which, in quality and strength, compares favorably with virgin wool fabric

Salvage. Wool reclamation. Layers of reclaimed wool and virgin wool ar...

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

Steel manufacture, Allegheny-Ludlum. Here is one of the huge seventy-two inch mills used to produce smooth, bright cold-rolled finish on steel sheets. The two highly polished center rolls are reinforced by heavier rollers to assure uniform reduction in the thickness of the sheet. These mills are used in the production of high quality steel

Steel manufacture, Allegheny-Ludlum. Here is one of the huge seventy-t...

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.

Sheffield, Alabama. Reynolds Alloys Company. Kenneth C. Hall, foreman of the hot mill gauging the thickness of a sheet of aluminum which is being rolled

Sheffield, Alabama. Reynolds Alloys Company. Kenneth C. Hall, foreman ...

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