John Payson wrote: > One story I read somewhere, but I'd like to find a real and definitive > source for it, was that the original purpose of the telegraph was in > fact to produce marks on paper (the paper being moved at a constant > speed while the solenoid controlled a pen). Tapping the pen against the > paper briefly would produce a dot while holding it would produce a dash. > The idea, then, was that the recipient of a message, following its receipt, > would then proceed to decode the dots and dashes on the paper into letters, > numbers, and other symbols. Hmmm, IIRC originally I thought Edison was a telegraph operator (before he became an inventor) & he worked on some kind of automatic telegraph forwarding thingies as his first inventions (as telegraphs had SHORT! ranges back then? like 5 miles?) - those used paper or something like that, to repeat the signal? But I thought it wasn't pen-based, rather burn marks on paper somehow, as ball point pens didn't exist then Fountain pens might not work well here... 1870's/1880's patents by edison, maybe? (I'm offline just now.) Mark, mwillis@Nwlink.com