Monroe electromechanical calculators
Dwight K. Elvey
dwight.elvey at amd.com
Fri Jun 17 12:34:08 CDT 2005
>From: "Jules Richardson" <julesrichardsonuk at yahoo.co.uk>
>I've been using sewing machine oil so far (which is the lightest stuff
>I've got). I just wonder if leaving it in a (slowly circulating /
>filtered?) bath of oil for a week or so would be useful for freeing
>stuff up and getting all the dirt out...
You might try first removing any rubber parts and then
soak the entire assembly in a pan of oil. You might use
straight weight motor oil and dilute it down with a little
kerosene. Let it sit for some time and then work it manually
while in the oil. This helps to wash things out, like rust
and little bits of abrasive material.
Tony might want to comment on this, he has worked on more
mechanical items than I have.
>> > So far I've found an acorn jamming up the works (!!) and lots of dirt,
>> An Acorn... What, a System 1, or an Atom, or a Beeb or an Arch, or what...
>> (sorry, couldn't resist...)
>I have no idea how it got in there; there isn't really a sufficient gap
>anywhere for such a thing to fall inside. And it was *very* well buried
>inside the mechanism (almost as though someone stuck it in there for
This was most likely done by a mouse. They like to stash these
nuts in some of the damnedest places. I had to clean a pile of
nuts from my IMSAI power supply and find the small opening my
little friend used to transport them in.
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