CARD TRANSLATOR FOR NATIONWIDE DIALING 



1097 



in perspective by Fig. 39. It supplements Figs. 12 and 13, which depict 

 the translator with its covers in place. The coded translator (lA) is 

 38" long by 21-^" wide by 27" high. Its weight is approximately 410 

 lb. The weight of the dynamic unit is approximately 110 lb. 



BASIC PLAN FOR CONSTRUCTION 



As the development progressed, it became apparent that unusual 

 and exacting manufacturing problems would be encountered which could 

 be solved to best advantage by providing design features that would 

 facilitate alignment of the light tunnels, the optical elements, the card 

 select and card support bars mth respect to the tabs of the cards, etc. 

 Accordingly, the design was worked out so that the assembly could be 

 built up around a base casting provided with reference surfaces and 

 locating pins adapted to be used with a surface plate type of fixture 

 that could be mounted in the space normally occupied by the dynamic 

 unit and upon which supplementary fixtures could be mounted for 



Fig. 43 — Base and plug assembly fixture, card cage and frames. 



