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MSS 00090 Test of a 100 K.W. De Laval Steam Turbine with an Introduction on the Principles of Design: Report, circa 1920

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North Carolina College of Agriculture and Mechanic Arts.


35.0 pages

General Physical Description note


For current information on the location of these materials, please consult the Special Collections Research Center Reference Staff external link.



Acquisitions Information



Processed by: Special Collections Staff;machine-readable finding aid created by: Dawne E. Howard

Scope and Content Note

This 35-page report is a handwritten history and evaluation of the De Laval reaction turbine. It includes 11 diagrams, including rotor [design] and buckets, bucket details, a heat chart showing friction losses, a section of the nozzle, theoretical and actual velocity diagrams, the design of the bucket, governor details, the reducing gearing, the standard machine, and a chart showing the results of the tests conducted. While the author of this report is not known, it may have been created by John William Cox, who received his bachelor's degree in civil engineering from North Carolina College of Agriculture and Mechanic Arts in 1915. Cox also received a master's degree in civil engineering. from the college in 1921.

Biographical Note

Carl Gustaf Patrik de Laval (1845 - 1913) was a Swedish engineer and inventor who made important contributions to the design of steam turbines and dairy machinery. In 1887 he built a small steam turbine turned by jets of steam, and in 1890 added a nozzle to increase the speed of the steam entering the turbine. De Laval's innovations are used today in rocket design and reduction gearing.

Controlled Terms

  1. Civil engineering--Study and teaching (Higher)--North Carolina
  2. Cox, John William
  3. De Laval, Carl Gustav Patrik, 1845-1913
  4. North Carolina State University--History.
  5. Speed--Tables
  6. Steam-turbines

Related Material

Gartmann, Hans (ed.). De Laval Engineering Handbook, Third Edition. New York: McGraw-Hill Book Company, 1970.

Access to Collection

This collection is open for research; access requires at least 24 hours advance notice.

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Special Collections Research Center
Box 7111
Raleigh, NC, 27695-7111


(919) 515-2273


(919) 513-1787

Preferred Citation

[Identification of item], Test of a 100 K.W. De Laval Steam Turbine with an Introduction on the Principles of Design: Report, Special Collections Research Center, North Carolina State University Libraries, Raleigh, NC

Access to Collection

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The materials from our collections are made available for use in research, teaching, and private study, pursuant to U.S. Copyright law. The user must assume full responsibility for any use of the materials, including but not limited to, infringement of copyright and publication rights of reproduced materials. Any materials used for academic research or otherwise should be fully credited with the source.

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