File:Operation and adjustments of the automatic three wire telephone (1915) (14753721584).jpg

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Description
English:

Identifier: operationadjustm00deck (find matches)
Title: Operation and adjustments of the automatic three wire telephone
Year: 1915 (1910s)
Authors: Decker, Benjamin Harrison
Subjects: Telephone Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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Text Appearing Before Image:
pring has too much tension,difficulty will be had in the initial rotation of dial andreturning speed will be too great. The dial spring should always be kept free from dust andrust, as either if present in sufficient (quantities will causethe spring to bind with the result of uneven impulses in calling. B. Normal Stop The next component of the main shaft assembly to be takenup is the normal stop. It is attached to the inner end of mainshaft by collar clamp and set screw. ( See Figure 2 part 8. )It has two arras about 40 degrees apart that operate in a planeat right angles to shaft. Its function is to engage the leverlock and release talking springs. In normal position the lowerarm holds the talking springs in contact. 7/hen a call is to bemade it is very necessar:/ that these springs be parted, foras explained in introduction the talking circuit is metallic,while the calling circuit is from one side of line to ground, andif springs are not parted line will be shorted and calling short
Text Appearing After Image:
Fig. E- Sin^l^Party, Line Telephone Kay bocurd. G roo/ic/ Post. 6.- f^ac<j V« k Hook, II- lk!»j Springs. S.-Rotai^y X^^, Spnti^. 5.-Wo^-mfl/ Stofi, IS- (governor.^. - L a\^e r Lock, 3,-Lever Lock Sfrr/n^. S.-5f»i€ler /frnt^rccktt^o.- Gear Wheel. Ftrptn ffuto, £teet. Go. T^rint. \

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https://www.flickr.com/photos/internetarchivebookimages/14753721584/

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Flickr tags
InfoField
  • bookid:operationadjustm00deck
  • bookyear:1915
  • bookdecade:1910
  • bookcentury:1900
  • bookauthor:Decker__Benjamin_Harrison
  • booksubject:Telephone
  • booksubject:Theses
  • bookcontributor:University_of_Illinois_Urbana_Champaign
  • booksponsor:University_of_Illinois_Urbana_Champaign
  • bookleafnumber:30
  • bookcollection:university_of_illinois_urbana-champaign
  • bookcollection:americana
Flickr posted date
InfoField
27 July 2014

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This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/14753721584. It was reviewed on 17 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

17 September 2015

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