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File:STAL Ljungström steam turbine rotor 50MW.jpg

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Summary

Description
English: The turbine rotor for Ljungström steam turbine 50 MW electric generator. Radial turbine wheels combined with axial turbine wheels at each end of the shaft.
Date circa 1932
date QS:P,+1932-00-00T00:00:00Z/9,P1480,Q5727902
Source STAL industrial archive.
Author Unknown authorUnknown author
Permission
(Reusing this file)
Public domain
This Swedish photograph is in the public domain in Sweden because one of the following applies:
  • The photograph does not reach the Swedish threshold of originality (common for snapshots and journalistic photos) and was created before 1 January 1974 (SFS 1960:729, § 49a).
  • The photograph was published anonymously before 1 January 1954 and the author did not reveal their identity during the following 70 years (SFS 1960:729, § 44).

For photos in the first category created before 1969, also {{PD-1996}} usually applies. For photos in the second category published before 1929, also {{PD-US-expired}} usually applies.

If the photographer died before 1954, {{PD-old-70}} should be used instead of this tag. If the author died before 1926, also {{PD-1996}} usually applies.

You must also include a United States public domain tag to indicate why this work is in the public domain in the United States.

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Date/TimeThumbnailDimensionsUserComment
current11:23, 28 October 2009Thumbnail for version as of 11:23, 28 October 2009462 × 630 (107 KB)Lidingo{{Information |Description={{en|1=The turbine rotor for Ljungström steam turbine 50 MW electric generator.}} |Source=STAL industrial archive. |Author=unknown pgotographer |Date=Around 1932 |Permission={{PD-Sweden-photo}} |other_versions= }} [[Category:S

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