[Milsurplus] [die at dieconsulting.com: Re: WWII Facsmile]

[WA5CAB at cs.com]

Nothing to do with the RC-120 or AN/TXC-1 but in the 60's, there was also a 
pressure sensitive paper used for weather maps.  I assume it was probably 
an early NCR type paper.  In '68 I maintained a pair of AN/UXH-2B printers 
that used it.  In these machines the paper was on rolls and somewhere around 
2' wide.  The print mechanism was three linear solenoid driven round-nosed 
steel pins mounted on a toothed belt.  Circumference of the belt was 3x the 
paper width so one print head was at the left edge just as the preceeding one 
went off the right edge.

In a message dated 6/29/2011 10:31:42 AM Central Daylight Time, 
jhhaynes at earthlink.net writes: 
> The paper that was marked by burning off the coating was Teledeltos,
> invented at Western Union and made for them by their suppliers.  At one
> time the process was secret, so they had several different suppliers
> doing different parts of the production.
> 
> There are several articles about Teledeltos in the Western Union Technical
> Review, which is online at massis.lcs.mit.edu   google for it.
> 
> Wet chemical papers were made by Alden and Hogan.  Alden's was sepia
> colored, and Hogan's was called catechol and was gray colored.  The two
> companies argued a lot about which was better, but to the end user
> both of them were fairly lousy.
> 

Robert & Susan Downs - Houston
wa5cab dot com (Web Store)
MVPA 9480