[modeleng] Re: sprockets

I built & displayed a canal lock last September at Ironbridge for a BBC
program on industrial inventions with Adam Hart Davies. The program was
shown over 6 weeks during the autumn.

E.W.
----- Original Message ----- 
From: "alanjstepney" <alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Monday, August 30, 2004 10:56 PM
Subject: [modeleng] Re: sprockets


> That sounds like an interesting project.
>
> I reckon that the lock is one of those jobs that appears tricky at first
> glance, but once you come to think about it, a real simple solution will
> present itself.
>
> alan@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
>
> www.alanstepney.info
> Model Engineering, Steam Engine, and Railway technical pages.
>
> ----- Original Message ----- 
> From: "Terry Lane" <tel@xxxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Monday, August 30, 2004 9:07 PM
> Subject: [modeleng] Re: sprockets
>
>
> Thanks Richard - yes, the diameter is a bit flexible & that would be big
> enough. To make the problem a little clearer (?) this wheel is wanted for
> the drive system under a HO scale canal. One big sprocket at one end under
> the turning pool, two smaller ones at the other - ditto, & a couple of
idler
> wheels to hold everything in shape (coming down the narrow central canal
> section) The chain carries a series of rare earth magnets that pull the
> barges along thru' the water.
>
> We did have the whole system operating on cable drive with MDF pulleys (on
> spring arms for tensioning) but the customer wants to revert to his
original
> concept of chain drive.
>
> Once we get all this sorted it's back to getting the working lock to do
just
> that (work). And they wonder why men drink????
>
>
> > Hi Terry,
> >
>
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