File:Bell telephone magazine (1922) (14753938154).jpg

Identifier: belltelephonevol21mag00amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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er fortotaling the number of items listed, andelectric carriage return each business office are forecast atleast one month in advance, so thatprovision can be made for the per-sonnel requirement for the businessoffice peak periods. Rotation billing,by distributing the total work through-out the month, makes possible the list-ing of all the toll service and telegramcharges for the entire monthly periodfor each customer in a single handling,and also permits the use of toll servicestatements printed and perforated ona continuous roll of paper. 1 HE adoption of rotation billingmakes possible the economical appli-cation of billing machines to thepreparation of customers bills, and atotal of 450 such machines is nowbeing used by all Associated Com-panies. These billing machines em-body features not previously availablein such machines, and as a result ofthe work of the Methods Division incooperation with the manufacturer,they have become standard features 44 Bell Telephone Magazine FEBRUARY
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of this type of machine and madeavailable to all who have use forthem. One of the important improvementsembodied in such machines for thefirst time is the automatic line finder.In the type of billing machine previ-ously used, the operator was requiredmanually to turn the platen of themachine to the proper line for theentry of any charge other than thatappearing on the first line of the bill.This not only required time, but whatis more important, it was subject toinaccuracies which could be detectedonly by means of a visual line-by-linecomparison of the completed bills withthe posting media. In the operation of the machine,the bill form is inserted and alignedagainst a stop on the feed table belowthe keyboard. The amounts of themonthly service charge and the re-lated Federal tax, as shown by thecard record of the customers service,are set up by depressing the properkeys. The depression of the controlkey for the first writing line auto-matically injects the bill form into themachine, im

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