Weather chart recorder   BS 114 (1970)  
  In addition to small format facsimile devices Hell developed a variety of large format devices which were used for transmitting weather maps. Separate devices were developed for transmitting and for receiving (weather map transmitters and weather map recorders). The weather service authorities of different countries were sending up to date weather maps over radio channels, to be received mainly by ships using a weather map recorder. The weather map transmitters operated much in the same way as the small format Hellfax devices, i.e. they were using a scanning drum. The weather map recorders were using different recording methods.  

        Kulturdenkmal SH en

The weather map recorder BS 114 is already a rather modern device, using transistorized
electronics. Recording is done in a flatbed arrangement using three circulating recording
needles, which burn the black pixels in a special paper coated with a thin metal layer.
Wetterkarten BS 114 Funktion
  Brochure BS 114      
  Short description BS 114 (German)      
  "für uns alle" No. 9 (German)      
Demonstation of thr weather chart recorder BS 114