[GreenKeys] Interesting WU film on You Tube

[John Nagle]

> From: Richard Knoppow <1oldlens1 at ix.netcom.com>
> Subject: [GreenKeys] Interesting WU film on You Tube
>
>     Interesting 1950s W.U. promo film at
> https://www.youtube.com/watch?v=Wv7ffGUnB-I
>
> Pix of all sorts of machines and gummed strips being mounted.
>
> -- Richard Knoppow 1oldlens1 at ix.netcom.com WB6KBL

    That's "Telegram for America", which is well known.
Most of the Model 14 variants appear in that film -
keyboard perforator, tape printer (with and without
the oval window for the bell switch), reperforator,
transmitter-distributor, and loop gate transmitter.

    There are shots of a Plan 55-A automatic switching center,
and what appears to be a Plan 21-A semi-automatic
switching center.

    The entire WU telegram system didn't use page printers
until near the 1950s.  It was all tape printers until 1955,
when someone finally invented a word wrap unit which could add CR LF
at the right spot.  This was attached to a Model 15
equipped with fanfold paper and sprocket feed, so
telegrams could at last be printed without manual tape
gumming.

http://massis.lcs.mit.edu/archives/technical/western-union-tech-review/10-1/p040.htm

			John Nagle