[GreenKeys] Teletype and electronics........

Tue Apr 9 18:42:58 EDT 2013

I have on my project list to remake a belt for the two 40's I have. The
belt itself is OK, it was
the rectangular or square elastomer 'sleeves' or tubes that held the slugs
that have decomposed on mine.

Since I had nothing to lose I cleaned off one of the belts and played
around with some rubber stock and
was able to attach pieces of new tube stock to the belt to where they
seemed to be able to handle the
stresses, I ran the belt for a few hours with dummy slugs and they remained
attached.

What needs to be done is finding tubing the right size elastomer and
mountable. Then building a jig that
will let one mount say a foot at a time. I envision making the jig out of
plastic stock on the milling machine.
The plastic should not bond to adhesive.

Now just need to find the time ...

-pete

PS Looking for replacement slugs, just in case.

On Tue, Apr 9, 2013 at 3:42 PM, Pete Lancashire <pete at petelancashire.com>wrote:

> I have on my project list to remake a belt for the two 40's I have. The
> belt itself is OK, it was
> the rectangular or square elastomer 'sleeves' or tubes that held the slugs
> that have decomposed on mine.
>
> Since I had nothing to lose I cleaned off one of the belts and played
> around with some rubber stock and
> was able to attach pieces of new tube stock to the belt to where they
> seemed to be able to handle the
> stresses, I ran the belt for a few hours with dummy slugs and they
> remained attached.
>
> What needs to be done is finding tubing the right size elastomer and
> mountable. Then building a jig that
> will let one mount say a foot at a time. I envision making the jig out of
> plastic stock on the milling machine.
> The plastic should not bond to adhesive.
>
> Now just need to find the time ...
>
> -pete
>
>
> PS Looking for replacement slugs, just in case.
>
>
>
> On Tue, Apr 9, 2013 at 3:13 PM, David I. Emery <die at dieconsulting.com>wrote:
>
>> On Tue, Apr 09, 2013 at 05:44:31PM -0400, COURYHOUSE at aol.com wrote:
>>
>> > At  one point  we  had a teletype model 40 printer   too  only  one...
>> it
>> > was neat  and  sold  rather  quickly so I never  got too much time to
>> play
>> > with it.
>>
>> > In a message dated 4/9/2013 2:22:04 P.M. US Mountain Standard Time,
>> > jhhaynes at earthlink.net writes:
>> >
>> > On Tue,  9 Apr 2013, Linger, Mike wrote:
>> > > ELECTRONICS, including the Teletype  model 40 which is all
>> electronics and
>> > > for the most part I consider it  junk, but I know some people like it.
>> > >
>> > Sadly, all the Model 40s  seem to be inoperative because the type
>> carrier
>> > belts have all turned to  crumbs.  In its day it was quite a piece of
>> work.
>>
>>         At one point in the late 70s I had three model 40s - all
>> working... One was a 132 column unit I used in the early 80s as a line
>> printer on various computer gear including early Intel blue cube
>> ICE/development systems.  Other two were 80 column things that I used
>> amongst other things to monitor stuff on the 1200 baud high speed AP
>> and UPI wires.   Upper lower case with the chains I had.
>>
>>         They were VERY loud... other drum type line printers were quieter.
>> But they also were pretty damn fast compared to any other TTY I met.
>> They actually would print software listings at a quite comparable pace
>> to a medium sized Dataproducts line printer of the era.
>>
>>         They showed up fairly cheap surplus in good condition in the
>> Boston area back then.   I later learned the spooks (think NSA related
>> stuff) had rooms full of them in the 70s for monitoring messages on
>> international satellites at some local unnamed facilities in the area
>> (lots of big dishes around the area back then).
>>
>>         I kept them around in my barn until early 2000s, when someone
>> begged me to let him take them off my hands... and much to both our
>> horror the chains were all mush on all three...  I doubt that any
>> exist that still run, since the chain was a really special rubberized
>> thing that carried the type pallets in little molded pockets and once
>> that went all the type pallets flew every which way...
>>
>>         I used to have a full set of service documentation for them, but
>> I am afraid I threw that out after the chain problem became clear and it
>> seemed they would never run again and I dumped the remaining one.
>>
>> --
>>   Dave Emery N1PRE/AE, die at dieconsulting.com  DIE Consulting, Weston,
>> Mass 02493
>> "An empty zombie mind with a forlorn barely readable weatherbeaten
>> 'For Rent' sign still vainly flapping outside on the weed encrusted pole
>> - in
>> celebration of what could have been, but wasn't and is not to be now
>> either."
>>
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