[GreenKeys] OT: Mechanical Adding Machines

[Bruce Gentry]

I made a similar posting a few months ago. I am  mostly interested in a 
few specific models of elaborate mechanical calculators made by Friden 
and Marchant.   Some of these are mechanical calculating's last stand 
before digital electronics took over.  I have not yet found any 
collector/restorer groups for mechanical calculators, and am interested 
in joining them if they  exist, but there are several for electronic 
calculator collecting and restoring.  Some other considerations for 
mechanical calculator restoration include finding service literature and 
specialized tools. Unlike Teletypes, maintaining the calculators was a 
mostly closed craft. Even government agencies and the military, except 
perhaps the Navy, outsourced everything to do with the calculators. 
Realitively few people learned or were allowed to learn the craft, and I 
fear most are no longer with us. Because typewriters have very real 
artistic applications, restoring and maintaining them is not only a  
hobby but still a viable, if small, business.

       Bruce Gentry, KA2IVY

On 11/6/17 11:22 AM, Cory Heisterkamp wrote:
> Given this group's attraction for mechanical engineering marvels, I 
> wanted to put feelers out and see if there was anyone on the list that 
> also collects/restores vintage adding machines and mechanical 
> calculators.
>
> I've recently picked up a full-keyboard Monroe and could use a few 
> pointers on adjustment/repair. Does anyone have any good groups or 
> resources to recommend?
>
> Thanks,
> Cory
>
>
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