File:The investigation of a gasoline automobile lighting and starting set (1914) (14596139318).jpg

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Identifier: investigationofg00shep (find matches)
Title: The investigation of a gasoline automobile lighting and starting set
Year: 1914 (1910s)
Authors: Shepperd, James Douglass
Subjects: Automobiles Automobiles Automobiles Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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Text Appearing Before Image:
Current Torque Curve for Starting Motor Current, amperes Pull,lbs. Torque inch lbs 44 7-3.5 56 11 5,5 72 17 8.5 90 28 14.0 JL2S na Rfi-n i
Text Appearing After Image:
J I \ .: 1 \ \ „. L i V- i - 11 1. -25- Radius of shaft equal 13/32,radius of cord equals 3/32; The lever arm then becomes 1/2 inch or 1/24 of a foot. If we assume a cranking s^eed of about 100 F.P.M and a gear i reduction of about 25 to 1 we will have a motor speed of about 2500 R.P.M and the horse power developed at this speed for a current of 90 amperes would be 2ir*2500xl4 .55 H.P. —53000x12 At about 200 amperes taking torque values from the curve the power would be 2HTx 2500 x 10 ^ 2.75 H.P. S3UO0 x 12 Tot ordinary starting conditions the engine should not requiremore than one horse power,so the motor has sufficient power todo the work,Since at times the starting effort will be greateron account of a cold engine,the motor will draw more currentand so exert a greater torque at this time. Battery Test, In order to make the test of the set complete it wasthought necessary to test the battery supplied.The battery wasan Exide storage battery made by the Electric Storage BatteryCom

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https://www.flickr.com/photos/internetarchivebookimages/14596139318/

Author Shepperd, James Douglass
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Flickr tags
InfoField
  • bookid:investigationofg00shep
  • bookyear:1914
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Shepperd__James_Douglass
  • booksubject:Automobiles
  • booksubject:Theses
  • bookcontributor:University_of_Illinois_Urbana_Champaign
  • booksponsor:University_of_Illinois_Urbana_Champaign
  • bookleafnumber:58
  • bookcollection:university_of_illinois_urbana-champaign
  • bookcollection:americana
Flickr posted date
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30 July 2014
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This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14596139318. It was reviewed on 27 August 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

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