window friction hinge problem

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Fred

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Oct 21, 2007, 9:34:55 AM10/21/07
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Hello,

The hinge on our window buckled when pulled a bit too hard. I don't
think it helped that the runners had not been oiled for a while.
Should I use 3 in1 or WD40 for this in the future?

I see that there are two types of friction hinge: a 13mm and a 17mm.
What is this: their depth? Across which point do I measure this?

I bought a pair but I notice the holes do not line up with the ones in
the original. Is this a problem? What is behind the uPVC? Is it a
wooden frame? If so, could I just put the screw where the new holes
are?

Or are these holes in key positions and should I drill a hole in the
hinge to align with the existing hole?

Thank you for your help in advance.

Andy Burns

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Oct 21, 2007, 9:53:31 AM10/21/07
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On 21/10/2007 14:34, Fred wrote:

> What is behind the uPVC?

air

Brian G

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Oct 21, 2007, 10:09:49 AM10/21/07
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Fred wrote:
> Hello,
>
> The hinge on our window buckled when pulled a bit too hard. I don't
> think it helped that the runners had not been oiled for a while.
> Should I use 3 in1 or WD40 for this in the future?

A light smear of 3 in 1

> I see that there are two types of friction hinge: a 13mm and a 17mm.
> What is this: their depth? Across which point do I measure this?

It's the width across if my memory serves me right.

> I bought a pair but I notice the holes do not line up with the ones in
> the original. Is this a problem? What is behind the uPVC? Is it a
> wooden frame? If so, could I just put the screw where the new holes
> are?

Just insert the screws into the frame using the holes in the new hinges -
different makes have different locations. Just remember not to overtighten
the screws as the 'thread' will easily strip in the uPVC.

AND buy the 'proper' screws for the job from the hinge supplier.

TIP: if the thread has stripped in UPVC - and providing it's the original
screw, it's possible to buy slightly fatter 'repair' screws to overcome this
problem. (Possibly teaching granny to suck eggs here though)?

Generally nothing in the uPVC - unless the window or sash is of such a size
that it needs reinforcement - and that will usually be either steel or
aluminium.

> Or are these holes in key positions and should I drill a hole in the
> hinge to align with the existing hole?

No - see reply above.

Fred

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Oct 22, 2007, 5:40:34 AM10/22/07
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On Sun, 21 Oct 2007 15:09:49 +0100, "Brian G" <br...@invalllid.com>
wrote:

>> I bought a pair but I notice the holes do not line up with the ones in
>> the original. Is this a problem? What is behind the uPVC? Is it a
>> wooden frame? If so, could I just put the screw where the new holes
>> are?
>
>Just insert the screws into the frame using the holes in the new hinges -
>different makes have different locations. Just remember not to overtighten
>the screws as the 'thread' will easily strip in the uPVC.

[...]


>Generally nothing in the uPVC - unless the window or sash is of such a size
>that it needs reinforcement - and that will usually be either steel or
>aluminium.

Thanks for your advice.

Is a upvc window just a plastic frame then? I never knew that. I
always thought the plastic covered a frame of wood or metal or
something.

Brian G

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Oct 22, 2007, 8:19:17 AM10/22/07
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Fred,

That's all a UPVC frame is - a hollow, extruded lump of plastic that comes
in various shapes and sizes - have a look at the profile here
http://www.qualplas.co.uk/windows.html

Brian G


Tony Bryer

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Oct 22, 2007, 10:28:08 AM10/22/07
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On Mon, 22 Oct 2007 13:19:17 +0100 Brian G wrote :
> That's all a UPVC frame is - a hollow, extruded lump of plastic
> that comes in various shapes and sizes - have a look at the profile
> here http://www.qualplas.co.uk/windows.html

Larger ones do have metal reinforcement in the cavity, but the
opening lights are held square by the glass, thus the need for
accurate placement of spacers.

--
Tony Bryer SDA UK 'Software to build on' http://www.sda.co.uk

Brian G

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Oct 22, 2007, 9:38:06 AM10/22/07
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Tony Bryer wrote:
> On Mon, 22 Oct 2007 13:19:17 +0100 Brian G wrote :
>> That's all a UPVC frame is - a hollow, extruded lump of plastic
>> that comes in various shapes and sizes - have a look at the profile
>> here http://www.qualplas.co.uk/windows.html
>
> Larger ones do have metal reinforcement in the cavity, but the
> opening lights are held square by the glass, thus the need for
> accurate placement of spacers.

Tony,

Agreed with your comment on spacers, but I have also been involved with the
manufacture and installation of 'plastic' windows where reinforcing was
necessary in sashes (opening lights) due to their size - albeit some years
ago now.

This reinforcing is generally not used to keep the frames square, but to
stop/reduce long, individual stiles etc from bending over their length.

Brian G


sm_jamieson

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Oct 22, 2007, 10:36:25 AM10/22/07
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If you look at those pictures, there is metal tubular reinforcement.
Simon.

Brian G

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Oct 22, 2007, 11:29:55 AM10/22/07
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Simon,

I presume the reply is to my post?

The reinforcing shown in that picture is for illustration only. It does not
form part of the manufacturing process of the plastic profile - that is just
plastic.

This reinforcing is loosely 'slipped into' the plastic during the making of
the actual window or door as required to strenghten the required
component(s) because of their length or weight they have to carry.

Brian G


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