visibility Similar

Steel manufacture, Allegheny-Ludlum. Pig iron such as this is a major ingredient of steel. Blast furnaces have smelted down the iron ore to obtain the pig iron used in all three types of steel furnaces: open hearth, Bessemer converter, and electric

code Related

Steel manufacture, Allegheny-Ludlum. Pig iron such as this is a major ingredient of steel. Blast furnaces have smelted down the iron ore to obtain the pig iron used in all three types of steel furnaces: open hearth, Bessemer converter, and electric

Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Thirty-five ton electric arc melting furnace in operation. These furnaces convert scrap iron and steel into high quality steel alloys. This type of furnace gives much faster heating and permits the accurate temperature control so necessary in the processing of the high quality steels. The alloying elements are being added to the bath of molten steel

Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Thirty-five ton electric arc melting furnace in operation. These furnaces convert scrap iron and steel into high quality steel alloys. This type of furnace gives much faster heating and permits the accurate temperature control so necessary in the processing of the high quality steels. The alloying elements are being added to the bath of molten steel

Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Giant at rest. A repairman mends one of the huge ladles in which molten steel is conveyed from the electric furnaces to the ingot moulds

Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Giant at rest. A repairman mends one of the huge ladles in which molten steel is conveyed from the electric furnaces to the ingot moulds

Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Refined alloy steel in the electric furnace, ready for casting into ingots. The slag layer on top of the molten steel prevents the hot steel from oxidizing, thereby preserving its high quality. This is an operation that has rarely been photographed

Steel alloy manufacture. Allegheny Ludlum Steel Corporation, Brackenridge, Pennsylvania. Open hearth steel is also made at this plant. Raw materials are charged into an open hearth furnace by means of this charging mechanism. The open hearth furnaces have a capacity of about 100 tons of steel per heat

Steel manufacture, Allegheny-Ludlum. White-hot steel pours like water from a thirty-five ton electric furnace. The finest quality steels and alloys are produced in these furnaces, which allow much greater control of temperature than other conversion furnaces. The proportion of electric furnace steel is rising steadily, even though this process is the most expensive. The furnace is tiled for the pourings. The flying sparks indicate the fluidity of the steel

Steel manufacture, Allegheny-Ludlum. White-hot steel pours like water from a thirty-five ton electric furnace. The finest quality steels and alloys are produced in these furnaces, which allow much greater control of temperature than other conversion furnaces. The proportion of electric furnace steel is rising steadily, even though this process is the most expensive. The furnace is tiled for the pourings. The flying sparks indicate the fluidity of the steel

Steel manufacture, Allegheny-Ludlum. Pig iron such as this is a major ingredient of steel. Blast furnaces have smelted down the iron ore to obtain the pig iron used in all three types of steel furnaces: open hearth, Bessemer converter, and electric

description

Summary

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

label_outline

Tags

pennsylvania allegheny county brackenridge safety film negatives steel allegheny ludlum pig iron pig iron ingredient blast furnaces blast furnaces ore iron ore types three types steel furnaces hearth bessemer converter bessemer converter united states history library of congress
date_range

Date

01/01/1940
person

Contributors

Palmer, Alfred T., photographer
United States. Office of War Information.
place

Location

Brackenridge ,  40.60812, -79.74116
create

Source

Library of Congress
link

Link

http://www.loc.gov/
copyright

Copyright info

Public Domain

label_outline Explore Three Types, Steel Furnaces, Pig Iron

Pennsylvania R.R. Railroad ore docks, unloading iron ore from a lake freighter by means of "Hulett" unloaders, Cleveland, Ohio

Columbia Steel Company at Geneva, Utah. Partly finished open hearth furnaces and stacks for a steel mill under construction which will produce vitally needed steel

A poster comes to life. "Meet the guys who shoot 'em." George Woolslayer introduces a group of open-hearth furnace men to his poster pals, Evans and Vineyard, who are getting a first-hand view of production for war. Although they knew how to shoot guns and drive jeeps before they came to Allegheny-Ludlum, they're seeing for the first time the kind of Americans who make these things: skilled and semi-skilled workers, tireless men who can work for hours in terrific heat. Allegheny-Ludlum Steel, Pittsburgh, Pennsylvania

Cleveland, Ohio. Unloading iron ore from a lake freighter by means of Hewlett [i.e., Hulett] unloaders at the Pennsylvania Railroad docks

U.S. Steel Homestead Works, Open Hearth Steelmaking Plant, Along Monongahela River, Homestead, Allegheny County, PA

Government discovers method to preseve film. Folding endurance test, The flexibility is measured in this folding endurance tester. A strip of film is folded back and forth under tension until it breaks, and the number of folds it withstands is counted. Three types of films have been studied, termed accoring to the chemical process of making them, acetate, viscose, and nitrate. The acetate base proved to be very stable on heating and is considered suitable for permanent records if properly made. The nitrate base became brittle quite raipidly and is considered unsuited for record purposes. The viscose base is in an intermediate position similar to that of record papers made from ordinary bleach wood fiber, 7/8/38

Casting pig iron, Iroquois smelter, Chicago

Columbia Steel Company at Geneva, Utah. Draglines are working day and night excavating for the building of open hearth furnaces for a new steel mill which will make important additions to the vast amount of steel needed for the war effort

A poster comes to life. K.P. was nothing like this, thinks Sergeant Vineyard, squinting against the scorching air which rises from the forging of a crane hook. Steel worker George Woolslayer (right) tells the Sergeant how his fellow workers go about the forging of implements of war in a blacksmith shop at Allegheny-Ludlum. Allegheny-Ludlum Steel

A black and white photo of a boat with smoke coming out of it. Office of War Information Photograph

Ore punchers waiting for cars of iron ore to come in. Allouez, Wisconsin

American agriculturist. Hearth and home

Topics

pennsylvania allegheny county brackenridge safety film negatives steel allegheny ludlum pig iron pig iron ingredient blast furnaces blast furnaces ore iron ore types three types steel furnaces hearth bessemer converter bessemer converter united states history library of congress