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BELL SYSTEM TECHNICAL JOURNAL 



electrically, this was the deciding factor in adopting high temperature 

 radiant heat drying and experience has amply justified the decision. 



Operation 

 The development of operating technique and methods offered some 

 difficulties as the process is neither wholly paper making nor wire 

 handling. Preliminary methods were worked out by engineers on the 

 machine. Then regular operators were recruited for the most part 

 from the operating organization and broken into the work. Most of 



Fig. 5 — Changing spools and take-up. 



them had never seen a paper machine before but they became very 

 efficient in a surprisingly short time and there have been no prejudices 

 acquired on regular paper machines to overcome. 



Making Narrmv Ribbons 

 The question of making narrow uniform ribbons has given con- 

 siderable trouble. The most satisfactory solution of this problem to 

 date is the use of deckels or dams painted on the mold mechanically at 

 spaced intervals. Apparently very good life can be expected from 

 such a mold. 



