File:A study of the relative efficiencies of lubricating oils (1909) (14593893069).jpg

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English:

Identifier: studyofrelativee00burc (find matches)
Title: A study of the relative efficiencies of lubricating oils
Year: 1909 (1900s)
Authors: Burch, William Harrison Kraft, Eugene William
Subjects: Lubricating oils Mechanical efficiency Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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t, and 33000, the number of foot pounds of work per minute in a horse power. After having used the graphite mixture on the bearing,the test of tie pure oil was repeated, but it was impossible to detect any variation in the coefficient of friction, dueto this cause. This may, however, Toe due to tlh fact that the bearing had become highly polished and well worn hy previous usage so that the surface afforded no microscopic irregularities for the lodgement of particles of graphite. If the bearing had heen new it is very probable that the friction would have been decreased by the application of graphite. -9- TEE PRIITCIPAL PARTS OP THE miAllDIIETER A. j?her2iometer in outgoing water. B. Tliermorjieter in ingoing v;ater. C. Thermometer in bearing. D. Apparatus for keeping 1068211 horizontal. E. Spring bala-nce.P. Oil cup. Cx. Bearing with water jacket. H. Motor. I. l.Yater Tank. J. Valve for regulating flow of cooling water.K. Pointer showing position of beam with respect to the horizontal.
Text Appearing After Image:
CALCULATION OF COEFFICIENT OF FRICTION AND FRICTION LOSSES
W = weight on bearing.
P = pull on spring balance
N = R. P. M. of shaft.
K = constant depending on diameter of bearing and ratio between lever arms= 3.094
C = coefficient of friction.
C = Px4.5 / W — (4.5 = ratio of lever arms)
H.P.= KPN/33000 = 3.094PN/33000
UniVE.RSITY OP iLLinois n E.CH. EnG. LaSORATORV (io._i Comparative LuBRicATion Test Total Load on BcAR/no ^ ^ 3 Pounos per sa.in onLubricant/?<6*/?gkv^ e^^/^ci n// Drop^ per riiriuTg. no. or Reads Tl M E Put 1Los. r\. r. 1 1. weiGn 1 or WATERO LBS. Water. DRG Irs Out J /.\?^~ /22.0 B.TU AB50RBED BY Water. o 2 / 3 c?-? 3 Z.0 6 / 3/0 4 2: / Zj.^ f. 3-7 /3^o. 5 2: / v$- /2S^b- / .^^ /3/0 6 a: zo 1 30.0 /3/a H P Con SUM EDBV PRICT/OM./ 74 7 JJiJ.o /.3j /306 8 2. -.30 / 32..0 /.3j / 290 9 1 3 2.^ / 3oo /O /• 3 J /3C4 CoEFF/cieriTOF PRiCTion f/ /30^ /a 2 : N^Tc? /32 0 13 / 3^.0 /3o2 / 30.0^ Qelarimg Tem PERATURE-^^f* fio. 2 I S7.S 96. Z / 07.O 2,Ol /3Eo

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https://www.flickr.com/photos/internetarchivebookimages/14593893069/

Author

Burch, William Harrison;

Kraft, Eugene William
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Flickr tags
InfoField
  • bookid:studyofrelativee00burc
  • bookyear:1909
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:Burch__William_Harrison
  • bookauthor:Kraft__Eugene_William
  • booksubject:Lubricating_oils
  • booksubject:Mechanical_efficiency
  • booksubject:Theses
  • bookcontributor:University_of_Illinois_Urbana_Champaign
  • booksponsor:University_of_Illinois_Urbana_Champaign
  • bookleafnumber:26
  • bookcollection:university_of_illinois_urbana-champaign
  • bookcollection:americana
Flickr posted date
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29 July 2014
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current01:00, 26 November 2015Thumbnail for version as of 01:00, 26 November 20153,280 × 2,491 (1.48 MB)SteinsplitterBot (talk | contribs)Bot: Image rotated by 90°
01:16, 12 September 2015Thumbnail for version as of 01:16, 12 September 20152,491 × 3,280 (1.47 MB)Fæ (talk | contribs)== {{int:filedesc}} == {{information |description={{en|1=<br> '''Identifier''': studyofrelativee00burc ([https://commons.wikimedia.org/w/index.php?title=Special%3ASearch&profile=default&fulltext=Search&search=insource%3A%2Fstudyofrelativee00burc%2F fin...

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