Re: To David Soderman: A Little Test

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In article <000701c1e1ff$7e082e60$0100a8c0@KAIROS>, Ernst Dinkla 
<E.Dinkla@chello.nl> writes

>The carrier is inserted in a traction unit that positions the
>carrier for scanning etc with the gear teeth at the side of the
>carrier. For scanning the whole traction unit glides on two rods
>with a traditional 3 point brass bearing setup. That movement is
>done with a finely machined screw spindle (don't know the right
>English term for it).

A "worm drive"?

That is frequently used when relatively large rotational motion, such as 
from a motor, need to be converted into fine linear movement.  A 
derivative is the "worm gear", used to achieve very low precision 
gearing ratios, where the driven linear unit is replaced with a 
concavely curved toothed wheel.
-- 
Kennedy
Yes, Socrates himself is particularly missed;
A lovely little thinker, but a bugger when he's pissed.
Python Philosophers
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