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

Summary
Contents
Names/subjects
Using these materials
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Creator
North Carolina College of Agriculture and Mechanic Arts
Size
35 pages (1 folder)
Call number
MSS 00090
Access to materials

Collection is open for research; access requires at least 48 hours advance notice. Because of the nature of certain archival formats, including digital and audio-visual materials, access will require additional advanced notice. Copies of digital files will be provided for use in the SCRC Reading Room upon request.

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.

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 the 1880s 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.

Biographical/historical 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.

Scope/content

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.

Use of these materials

The nature of the NC State University Libraries' Special Collections means that copyright or other information about restrictions may be difficult or even impossible to determine despite reasonable efforts. The NC State University Libraries claims only physical ownership of most Special Collections materials.

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.

This collection may contain materials with sensitive or confidential information that is protected under federal or state right to privacy laws and regulations. Researchers are advised that the disclosure of certain information pertaining to identifiable living individuals represented in this collection without the consent of those individuals may have legal ramifications (e.g., a cause of action under common law for invasion of privacy may arise if facts concerning an individual's private life are published that would be deemed highly offensive to a reasonable person) for which North Carolina State University assumes no responsibility.

Preferred Citation

[Identification of item], Test of a 100 K.W. De Laval Steam Turbine with an Introduction on the Principles of Design, MSS 00090, Special Collections Research Center, North Carolina State University Libraries, Raleigh, NC

Related material

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

Source of acquisition

Unknown.

Processing information

Processed by Special Collections staff, 2005; updated by Susan C. Rodriguez, 2015 November.

Please note that some historical materials may contain harmful content and/or descriptions. Learn how we’re addressing it.
Test Report circa 1920
MSS legalbox 3, Folder 00090-1
Please note that some historical materials may contain harmful content and/or descriptions. Learn how we’re addressing it.

Access to the collection

Collection is open for research; access requires at least 48 hours advance notice. Because of the nature of certain archival formats, including digital and audio-visual materials, access will require additional advanced notice. Copies of digital files will be provided for use in the SCRC Reading Room upon request.

For more information contact us via mail, phone, or our web form.

Mailing address:
Special Collections Research Center
Box 7111
Raleigh, NC, 27695-7111

Phone: (919) 515-2273

Preferred Citation

[Identification of item], Test of a 100 K.W. De Laval Steam Turbine with an Introduction on the Principles of Design, MSS 00090, Special Collections Research Center, North Carolina State University Libraries, Raleigh, NC

Use of these materials

The nature of the NC State University Libraries' Special Collections means that copyright or other information about restrictions may be difficult or even impossible to determine despite reasonable efforts. The NC State University Libraries claims only physical ownership of most Special Collections materials.

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.

This collection may contain materials with sensitive or confidential information that is protected under federal or state right to privacy laws and regulations. Researchers are advised that the disclosure of certain information pertaining to identifiable living individuals represented in this collection without the consent of those individuals may have legal ramifications (e.g., a cause of action under common law for invasion of privacy may arise if facts concerning an individual's private life are published that would be deemed highly offensive to a reasonable person) for which North Carolina State University assumes no responsibility.