Subject:
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Re: New Civil Engineer - Lego vs Meccano debate
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Newsgroups:
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lugnet.loc.uk, lugnet.mediawatch
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Date:
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Tue, 31 Jul 2001 14:23:15 GMT
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Viewed:
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1158 times
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err try this one www.minifig.co.uk/images/temp/lego-7.jpg
"James Stacey" <James@minifig.co.uk> wrote in message
news:GHCD55.JFB@lugnet.com...
> www.minifig.co.uk/web/images/temp/lego-7.jpg
>
>
> Dear Paul
> I enclose an image of the Lego model which was used by myself (and my 9 • year
> old daughter) to develop the concept for maintaining the horizontality of
> the wheel. It also had a "sophisticated" lego brick attachment which • looked
> at the idea of a water driven wheel using ballast tanks in the form of • hooks
> at the end of each arm.
> best regards
> Tony Kettle
>
>
>
>
>
>
> "James Stacey" <James@minifig.co.uk> wrote in message
> news:GHAE43.K3p@lugnet.com...
> > The article:
> > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
> >
> > Ensuring the gear ratio is correct
> > Construction News 17/05/2001
> > Page: 22 23
> > Record Number: 53996
> >
> > THE 35 m-high Falkirk Wheel will allow boats to enter one of two 30-m • long
> > double-walled gondolas from either a short aqueduct off the Union Canal • or
> a
> > large circular basin linked to the Forth & Clyde 25 m beneath.
> >
> > Each 150 tonnes gondola is supported at its ends by a 35 mlong curved • arm,
> > which turn about a 3.8 m diameter axle.
> > A set of 10 hydraulic motors, housed in the axle's fixed end bearing, • rotate
> > the shiplift through 180 degrees. This is the only motive power needed, • as
> > the rotating arms also indirectly turn the gondolas to ensure they • always
> > remain horizontal.
> >
> > A series of cogs and gears - positioned between the circular rim in the • arm
> > housing the gondola, and a fixed gearing ring on the aqueduct wall - • rotate
> > the boat-filled caissons at the same speed as the wheel turns.
> >
> > This simple yet innovative mechanism was devised by the tendering team's
> > architect RMJM, whose partner Tony Kettle arrived at a brainstorming • meeting
> > clutching a model of the mechanism made from his son's Lego.
> >
> > "It was a brilliant idea, " Butterley Engineering's Colin Castledine, a
> > civil engineer, admits grudgingly, before adding with a wry smile."But • the
> > gear ratios on his model were all wrong and the gondolas would have • turned
> > over."
> >
> >
> >
>
>
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