File:AERIAL VIEW, LOOKING WEST, VIEW OF POWER PLANT. - Tennessee Coal and Iron Company, Ensley Works, West of residential and commercial districts, Birmingham, Jefferson County, AL HAER ALA,37-BIRM.V,16-2.tif

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AERIAL VIEW, LOOKING WEST, VIEW OF POWER PLANT. - Tennessee Coal and Iron Company, Ensley Works, West of residential and commercial districts, Birmingham, Jefferson County, AL
Photographer

Deising, David

Related names:

Benz, Sue, transmitter
Title
AERIAL VIEW, LOOKING WEST, VIEW OF POWER PLANT. - Tennessee Coal and Iron Company, Ensley Works, West of residential and commercial districts, Birmingham, Jefferson County, AL
Depicted place Alabama; Jefferson County; Birmingham
Date 1992
date QS:P571,+1992-00-00T00:00:00Z/9
Dimensions 4 x 5 in.
Current location
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print
Accession number
HAER ALA,37-BIRM.V,16-2
Credit line
This file comes from the Historic American Buildings Survey (HABS), Historic American Engineering Record (HAER) or Historic American Landscapes Survey (HALS). These are programs of the National Park Service established for the purpose of documenting historic places. Records consist of measured drawings, archival photographs, and written reports.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

Notes
  • Significance: The Ensley steel mill is historically significant for a variety of "firsts" which occurred there. The first duplex steel in the United States was made here in 1899. So named because it was first produced in a Bessemer convertor then transferred to open hearth furnaces, the duplex process was later adopted widely at many major steel mills including the Duquesne plant of U.S. Steel. This steel was made into the first railroad rails produced from the open hearth process in the United States. The Ensley open hearths were also some of the first tilting open hearths employed in the United States. While these features make the site nationally significant, historically, the blast furnace plant is also important. These furnaces were the first blast furnaces in the District to produce basic iron on a large scale and the product was so competitive that it was sold to the Carnegie Steel Company for their steel furnaces in Pittsburgh. Since they were used to make basic pig iron from Red Mountain ore, in contrast to most other furnaces in the District which produced foundry iron, they developed a body of practice and design that was different from their local counterparts as well as the basic iron blast furnaces from other regions. While the differences were subtle, they were substantive and by the time the plant was acquired by U.S. Steel, it had become a basis of comparison with furnace design in other regions. Several technical reports issued by U.S. Steel show the designs of the Ensley furnaces alongside such notable blast furnaces as those at South Chicago, Edgar Thomspon and Duquesne. When the thin-walled furnace design was introduced from Germany, U.S. Steel rebuilt one of the Ensley furnaces to these specifications making it an important prototype for the corporation.
  • Survey number: HAER AL-52
  • Building/structure dates: 1888 Initial Construction
Source https://www.loc.gov/pictures/item/al1062.photos.046348p
Permission
(Reusing this file)
Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.
Object location33° 31′ 14.02″ N, 86° 48′ 09″ W Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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