File:Holding power of railroad spikes (1906) (14574608387).jpg

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English:

Identifier: holdingpowerofra00webb (find matches)
Title: Holding power of railroad spikes
Year: 1906 (1900s)
Authors: Webber, Roy Irvin
Subjects: Rail fastenings Nails and spikes Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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Text Appearing Before Image:
n Pounds for Relative Resistance 1-8-in.Pull 1-4-in. Pull Max.Resist. 1-8-in. Pull 1-4-in. Pull Max.Resist. White Oal^ OrdinaryScrew*Lining- 351062506440 59501190010880 78701263011960 100178183 100200183 100188. 152 Water Oak OrdinaryScrew*Lining 287048803190 573091806780 67801219011580 100170111 100160118 100179171 Black Oak OrdinaryScrew*Lining 291047605690 58901042010420 72301411012500 100164195 100177177 100203173 Ash OrdinaryScrew*Lining 357057006640 5200104709370 77301276010470 100162186 100200180 100 165135 Beech Ordinary D L 1 c W Lining 260064509720 54901314010860 88401623012150 100248373 100221198 100238138 Poplar OrdinaryScrew*Lining 283038503910 529062108860 5670749010320 100137138 100117162 100132182 Chestnut OrdinaryScrew*Lining 285036906390 407063407950 520087009150 100129224 100155195 100167176 Sweet Gum OrdinaryScrew*Lining 323054305030 412077107260 530082808690 100167136 100162176 100156164 * Screw spike with helical lining. iiie ^ belongs after Lining,** plate: VIII
Text Appearing After Image:
Impact Apparatus WEBBER—HOLDING POWER OF RAILROAD SPIKES 53 PART II RESISTANCE TO LATERAL DISPLACEMENT The railroad spike is subjected not only to a direct pull bythe undulation of the rail, but also to a horizontal thrust due tothe lateral movement of the rail. On roads having a large amountof curvature the lateral resistance is of more importance than thatof direct pull. To determine the amount of the resistance to lateral displace-ment which is developed by various forms of spikes the writermade a series of tests in which the lateral thrust was produced bythe blows of a heavy hammer. The hammer consisted of a cast-iron weight suspended by a wooden rod from the joists of the floorabove. The place in which the apparatus was used was such that agood photograph could not be taken. Plate VIII is a view of theapparatus set up in a light suitable for photographing. Allessential features are correctly represented. Fastened to thejoists were metal strips upon which the knife edges of the

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https://www.flickr.com/photos/internetarchivebookimages/14574608387/

Author Webber, Roy Irvin
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(Reusing this file)		 At the time of upload, the image license was automatically confirmed using the Flickr API. For more information see Flickr API detail.
Flickr tags
InfoField
  • bookid:holdingpowerofra00webb
  • bookyear:1906
  • bookdecade:1900
  • bookcentury:1900
  • bookauthor:Webber__Roy_Irvin
  • booksubject:Rail_fastenings
  • booksubject:Nails_and_spikes
  • booksubject:Theses
  • bookcontributor:University_of_Illinois_Urbana_Champaign
  • booksponsor:University_of_Illinois_Urbana_Champaign
  • bookleafnumber:67
  • bookcollection:university_of_illinois_urbana-champaign
  • bookcollection:americana
Flickr posted date
InfoField
27 July 2014


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