Re: [TUHS] Graphic Systems C/A/T phototypesetter

On Dec 9, 2013, at 22:21, Brian S Walden <tuhs(a)cuzuco.com> wrote: Look at United States Patent 4074285 http://patentimages.storage.googleapis.com/pdfs/US4074285.pdf Figure 1 is identical to the machine I ran at Whippany Bell Labs in the early to mid 80s. It was about 4 1/2 feet tall Figure 4 is the font wheel (seen as 16 in Fig 1) there were 4 distinct sectors, each with a different font. One with Times Roman, one with Times Roman Bold, one with Times Roman Italic and the last was the symbol fonts (math, greek chars, left hand (\lh right hand \(rh etc. and this one was made specifically for the Labs as it had a Bell Logo \(bs on it) The paper was a roll of photo paper, glossy on the text side, rough on the reverse, it was thick. It would end up going into the cassette (20 in Fig 1) and would need to be developed. Not shown in the patent figures was the developing and drying apparatus. At the end of a job the exposed paper was in the cassette you'd remove it from the typesetter and put into a device with rollers that would pull it out and run it thru developer and fixer liquid chemicals. Exiting that it would go into a dryer drum. After it was completly dry, as it was still a continuous roll, you would need to cut all the pages apart by hand (that is why there was the cut mark macro (.CM) is -ms so you could tell where to cut) As it came from a roll, no pages ever layed completely flat. The checmical baths were nasty smelling and it gummed up the rollers. You'd needed to regularly take the developer roller and gear guts into the janitor's closet and scrub it with a toothbrush in the slop sink under running water. By the second half of the 80s it was replaced by QMS PostScript laser printers. _______________________________________________ TUHS mailing list TUHS(a)minnie.tuhs.org https://minnie.tuhs.org/mailman/listinfo/tuhs