[GreenKeys] Model 14 non-typing reperforator on eBay

[COURYHOUSE at aol.com]

many  thanks   for the  advice  and   info  Jim!
as always!  you have the answers!   
 
Ed#
 
 
In a message dated 10/31/2013 9:04:51 A.M. Mountain Standard Time,  
jhhaynes at earthlink.net writes:

On Thu,  31 Oct 2013, COURYHOUSE at aol.com wrote:

> we would love a 6 level  machine someday! I like things  with  tags on it 
>  though...  but  for the right price...  it is all an  important
> part of communications  history!

Well  just wait until it doesn't sell at the high price and then make an
offer to  the seller.  Or if it does sell you know somebody else paid way
too  much.

>  
> did they make a model  19    into a model 20  or  was it  like  a model  
15 
> they made into  a 20?

The Model 20 6-level  printer is based on the typing unit used in Model
15 and 19 machines, has  six code bars in the type basket rather than five,
so I guess the vane that  is ltrs/figs in the Model 15 printer is taken
over as the sixth code vane  in the Model 20.

The Model 20 perforator may have some parts in common  with the Model 19
perforator, but is a very different animal.   Linotype copy is left and
right justified.  And the type font is  proportional spaced rather than
equally spaced.  The typesetting  machine has things called space bands
which can take up a variable amount  of space in the middle of a line so
that the margins come out even.   Hence the perforator cannot use a simple
character counter like the Model  19 does.  It has to know the width of
each character and advance the  pointer correspondingly.  Then it has to
know the number of space  bands and indicate how much or how little space
they can occupy to fill out  the line.  That design went through quite a
few iterations, as you can  see from the patent record.  Watching the
character counter, the  operator has to estimate whether the next word in
the copy will fit into  the available space, or whether it should be
hyphenated, or whether it  should be pushed to the next line.

The transmitter-distributor for  Model 20 is based on the one used in
Model 19, which is actually considered  part of the Model 14 line.
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