[SEL] NC or NF thread

[Dave Croft]

----- Original Message ----- 
From: "Curt" <curt at imc-group.com>
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Sent: Friday, April 15, 2005 6:52 PM
Subject: Re: [SEL] NC or NF thread


> Ron,
> What a neat mechanical device! I'd never seen this. Your depth of 
> knowledge never ceases to amaze me.
> Thanks for sharing.
> Curt
> >Hi Curt,
> >That sounds like a machinist's version of a Chinese windlass, also called  
> >the differential windlass which is a simple but powerful means of increasing  
> >leverage.  
> >_Click  here: Dictionary - Yahooligans! Reference -_ 
> >(http://yahooligans.yahoo.com/reference/dictionary/entries/64/d0216400.html)  
> >Ron Carroll

Hi Curt, This is the same Weston Differential block that I have used for 25 years
to load engines on to the shelves of my storage building.
See http://www.alexdenouden.nl/08/weston2.htm  (Partly in English)
I have had no problems at all lifting up to 6 HP engines!
Dave Croft
Warrington
England
http://community.webshots.com/user/crftdv