• Contact
  • Login
Home

AZGS Document Repository

document archiving, management and discovery
Home › Collections › Arizona Geological Survey Bulletins ›

Tungsten

Basic Information
Author: 
Rubel, A.C.
Description: 
·"The first thought which occurs to the uninitiated on hearing the word 'Tungsten' is almost certain to be of the latest form of incandescent bulb. The remarkable qualities of the filament lamp, drawn from ductile tungsten, in the economy of current has caused the tungsten filament lamp to take the place of the earlier types of incandescent electric lights. The fact that tungsten can be drawn to smaller sizes than any other known: metal while retaining its remarkable strength and pliability permits of the shipping of tungsten lamps with the smallest percentage of breakage and gives long service. By its use, at least two and one-half times as much as the old carbon filament is given at half the cost for electricity and the light is white as against the orange red of the carbon lamp. The use of tungsten in electric bulbs has resulted in an enormous saving of current which in the aggregate amounts to many millions of dollars per annum. Lately, greatly improved lamps 'in which the wire is wound in helices and in which the globes are filled with nitrogen, have brought the consumption of electricity down to 0.4 to 0.5 watt per candle and have produced the closest approach to white light. These lamps are furnished in candle powers up to 2,000. Nevertheless, the total tungsten used for electric light purposes represents a very small proportion of the annual consumption. 14 p.
Publication Date: 
1917
Resource Language: 
English
Intellectual Originator Contact
Organization Name: 
University of Arizona Bureau of Mines
City: 
Tucson
State/Province: 
Arizona
Country: 
USA
Available Files: 
application/pdf iconTungsten
Resource Information
Resource ID: 
Bulletin No. 11
Resource ID: 
Mineral Technology Series No. 5
Access Statement: 
Printed copies are available at the Geoscience Library of the Arizona Geological Survey.
Resource Distribution Contact
Organization Name: 
Arizona Geological Survey
Street Address: 
416 W. Congress St., Ste. 100
City: 
Tucson
State/Province: 
Arizona
Postal Code: 
85701
Country: 
USA
Phone: 
520.770.3500
Fax: 
520.770.3505
Link: 
http://www.azgs.az.gov
Geographic Extent
North bounding latitude: 
48.7656
South bounding latitude: 
25.7434
West bounding longitude: 
-125.156
East bounding longitude: 
-68.0273
  • share
URI: /uri_gin/azgs/dlio/1137 | Metadata UUID: 0f51f6b7-9eb5-11e0-905b-d1ee394edb61 | Updated: 2011-07-27T07:18:04 | ISO 19139 | FGDC XML | CSW Record
  • Home
  • Search
    • Document Timeline
    • Browse Collections
  • About this Repository

Preview

Preview Image

Related categories

Collection

  • Arizona Geological Survey Bulletins

Thematic Keywords

  • commercial demand
  • incandescent light bulb
  • mineral
  • steel
  • tungsten
  • tungsten alloy
  • tungsten ore

Place Keywords

  • United States of America

Temporal Keywords

  • Recent

Author

  • Rubel, A.C.

Publication Date

  • 1917 » 01/1917 » 01/01/1917

Arizona Geological Survey Bulletins

Collection Logo
Provided by
Arizona Geological Survey

AZGS Publications Showcase

Preview Image
Geologic map of the Phoenix Mountains, Central Arizona

Preview Image
Geologic Map of Petrified Forest National Park, Arizona

Preview Image
Suggested Guidelines for Investigating Land Subsidence and Earth Fissure Hazards in Arizona

AZGS Document Repository | Copyright ©  Arizona Geological Survey, 2014 | Disclaimer | Contact  | XML Sitemap | RSS Feed Icon |  OAI-PMH Icon
  
The maps, reports, and other information and content on this website are provided as a public service for informational purposes only.  Accuracy is not guaranteed, and the information contained or linked on this website should not be relied on except as general information.  The University makes no warranties or representations of any kind, and specifically disclaims all warranties including the warranty of merchantability and fitness for a particular purpose.  Users are responsible for verification of all facts and information to their own satisfaction.