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  1. #16
    Join Date
    Jul 2005
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    Oberon, NSW
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    Quote Originally Posted by A Duke View Post
    Actually it,s all a joke as windows can be broken.
    Or they could ram raid your house.
    It's often easier and less conspicuous to come in through the roof, if tiled. DAMHIKT.
    I may be weird, but I'm saving up to become eccentric.

    - Andy Mc

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  3. #17
    Join Date
    Jan 2014
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    Sydney Upper North Shore
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    Quote Originally Posted by A Duke View Post
    Hi,
    Actually it,s all a joke as windows can be broken.
    Or they could ram raid your house.
    Regards
    You would have to be one heavy sleeper to sleep through a ramraid on your house

  4. #18
    Join Date
    Apr 2018
    Location
    Nsw
    Age
    64
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    The main reason is that insurance companies want you to have locks on all openings to insure you.

    From a marketing point of view you can leave your window partially open and you still can’t put your hand in and wind it out far enough to disengage the chain from the sash to gain full access

    Like all locks they only keep the honest people out

  5. #19
    Join Date
    Feb 2003
    Location
    back in Alberta for a while
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    68
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    12,006

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    Quote Originally Posted by Wongo View Post
    Can a wiser person tell me the propose of a lock on a chain window winder?
    When it is locked the window cannot be opened or closed. Why?

    Attachment 448091
    there's also a (BCA?) requirement that windows with a drop greater than a certain distance be lockable so that ankle biters and bigger can't open the window and fall out.
    regards from Alberta, Canada

    ian

  6. #20
    Join Date
    Apr 2018
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    Nsw
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    64
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    Quote Originally Posted by ian View Post
    there's also a (BCA?) requirement that windows with a drop greater than a certain distance be lockable so that ankle biters and bigger can't open the window and fall out.
    Not quite right, the BCA requirement is that the openings on the windows are permanently restricted to open a maximum of 90 or 110mm if the fall distance is greater than 3.4 m from memory. There is no requirement for them to be able to be locked, just a restriction on how far they open
    The newer chain winders have a restriction option on the back of them that you can activate

  7. #21
    Join Date
    Feb 2003
    Location
    back in Alberta for a while
    Age
    68
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    12,006

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    Quote Originally Posted by Beardy View Post
    Not quite right, the BCA requirement is that the openings on the windows are permanently restricted to open a maximum of 90 or 110mm if the fall distance is greater than 3.4 m from memory. There is no requirement for them to be able to be locked, just a restriction on how far they open
    The newer chain winders have a restriction option on the back of them that you can activate
    OK
    Lately I've been looking at older residential flat buildings -- most have been retro-fitted with window locks that restrict how far a window can be opened.
    regards from Alberta, Canada

    ian

  8. #22
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    Apr 2018
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    64
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    Quote Originally Posted by ian View Post
    OK
    Lately I've been looking at older residential flat buildings -- most have been retro-fitted with window locks that restrict how far a window can be opened.
    Yes I did a couple last week, I just Googled up a video that shows you what I mean, https://m.youtube.com/watch?v=Hfpi7hO63Sc
    Some are like in the video and there are others that have a little rubber stopper you fit in a similar manner.
    I haven’t used the non locking ones as they have never been asked for but I would say they work exactly the same

  9. #23
    Join Date
    Nov 2003
    Location
    Sydney
    Age
    53
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    8,879

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    My neighbors have same brand of winders but 10 years newer than mine. The interesting thing is my keys can unlock theirs and their keys can unlock mine. They are identical.

    Just another log to the fire.
    Visit my website at www.myFineWoodWork.com

  10. #24
    Join Date
    Oct 2007
    Location
    Alexandra Vic
    Age
    69
    Posts
    2,810

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    The chain winders are not particularly secure if left moderately ajar for ventilation, lock or no lock. With a opening of about 70mm, baddies wandering around with a 200mm shifter can get a grip on the chain and twist it breaking the chain. Know this cause we were robbed that way in 86. To appease insurance co, we installed keyed locks on all windows, some keyed bolts, some keyed winders. Thieves come back 5 weeks later (enough time for insurance to pay out) and tried again, couldn't open any windows, so they put the shifter through one instead. Didn't get anything the second time because we hadn't replaced the stuff they took the first time.
    I used to be an engineer, I'm not an engineer any more, but on the really good days I can remember when I was.

  11. #25
    Join Date
    Oct 2007
    Location
    Alexandra Vic
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    69
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    2,810

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    Quote Originally Posted by Wongo View Post
    My neighbors have same brand of winders but 10 years newer than mine. The interesting thing is my keys can unlock theirs and their keys can unlock mine. They are identical.
    Typical common locks have 5 pins or disks inside and each can have 5 or 6 possible key depths. About 25-30 possible combinations overall, so its isn't uncommon for them to be interchangable between properties, except when you are in the store needing to buy multiples and there are 10 units on the shelf and each has a different combination. Also these days some window manufacturers bulk order all their locks etc as the same random combination to facilitate same keying and avoid the problem I just identified. So if they supply windows for a strip of houses in the street built at the same time by the same builder, chances are the window locks along the strip will have matching keys.
    I used to be an engineer, I'm not an engineer any more, but on the really good days I can remember when I was.

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