[GreenKeys] GreenKeys Digest, Vol 106, Issue 10

[Jim Haynes]

On Tue, 6 Nov 2012, John Nagle wrote:

>   With the Model 28, of course, they put in a "paper feed" button and
> eliminated the crank.
>
And inside with the cover open there is a paper winding knob that is
not detachable, doesn't need to be.

>   It's a case design problem.  The Model 15 case gives the
> impression of being an afterthought.  It isn't attached to the
> machine; it just sits on top of it, isolated from it by some rubber
> bumpers.  You have to reach into holes to get at the power switch
> and break key.
>
Then there are some case designs - Western Union and Teletype both had
a "mail box" design - where a rubber-tired wheel projects through the
top of the case for paper advancing.

But the Model 15 standard cover works fine, and is a lot simpler
mechanically than having a paper advance button like the 28.  There
could have been a way to attach the crank to the cover by a length
of chain so the crank would not get separated.