[GreenKeys] An interesting article regarding the Model 37 Teletype

[Christian Gauger-Cosgrove]

Hi everyone;

Being bored, and exasperated by a chemistry assignment (I hate organic
chemistry); I stumbled upon this article:
http://pubs.acs.org/doi/pdf/10.1021/c160049a003

It's quite the ingenious modification of the Model 37 so that it could
print out not only text but chemical diagrams as well. I wonder if any
of those modified Model 37's survived. If they did, that would be
quite interesting. Though admittedly, they wouldn't be of all that
much use, save to the occasional chemistry student, and then of course
the teleprinter wouldn't be as versatile as something like ACD/Lab in
drawing of structures.

Any one else know of any interesting modifications and/or character
sets for any model teletype? The only ones I know of are, in five-bit:
American S-Bell codes (weather, commercial and standard), CCITT #2
J-Bell (and it's minuscule number of variants caused by using the
national use codes), and the German ALCOR set for programming in Algol
60 (mmm... ALGOL). And in 7-bit I know of the ASCII variants, and the
strange CCITT #3 (which was an odd 3-of-7 code). I also know of the
6-bit CCITT #4 which was basically "here's 5-bit CCITT #2 with an
extra bit, and three more control symbols. DO NOT USE THE EXTRA
TWENTY-NINE CODE POINTS EVER." There's also 8-bit CCITT #5; which was
7-bit ASCII '67 with an even parity bit (