Right all...here is a poser for you.

I need to fit a lock to a door that will alow a user to lock the door when
they leave and open a door on thier return. however, it mustnt allow them
to lock themselves in and needs to have some sort of hold off system for if
not needed.

Any sugestions? a standard night latch is no good, cus they can easily lock
themselves in. one solution is a mortice nightlatch with hidden snib for
overriding the latch altogether...but these are expensive...over £45 each!
i need 2.

Any sugestions?

steve

On Sat, 8 Jul 2006 17:14:25 +0100, r.p.mcmurphy wrote
(in article ):

Right all...here is a poser for you.

I need to fit a lock to a door that will alow a user to lock the door when
they leave and open a door on thier return. however, it mustnt allow them
to lock themselves in and needs to have some sort of hold off system for if
not needed.

Any sugestions? a standard night latch is no good, cus they can easily lock
themselves in. one solution is a mortice nightlatch with hidden snib for
overriding the latch altogether...but these are expensive...over £45 each!
i need 2.

Any sugestions?

steve



You could consider a mortice latch with Euro key and turn cylinder.


If you look in the various sections under

http://www.locksonline.co.uk/acatalo...ce_Locks_.html

you will find various types of lock case that will accept a Euro cylinder.
Some of the better ones have a projecting lever to prevent somebody doing a
credit card job with the latch and opening it. Others have a little latch
lever which can be slid across to hold the latch open.

THen for cylinders have a look at


http://www.locksonline.co.uk/acatalo...Cylinders.html



I think that overall this comes close to what you describe. There is a
security downside that if the door is breakable glass then a miscreant can
smash it and easily open the handle without any need for a key.

On the other hand, perhaps the safety aspect is more important in this
application.?

Right all...here is a poser for you.

I need to fit a lock to a door that will alow a user to lock the door
when
they leave and open a door on thier return. however, it mustnt allow
them
to lock themselves in and needs to have some sort of hold off system for
if
not needed.

Any sugestions? a standard night latch is no good, cus they can easily
lock
themselves in. one solution is a mortice nightlatch with hidden snib for
overriding the latch altogether...but these are expensive...over £45
each!
i need 2.

Any sugestions?

steve



You could consider a mortice latch with Euro key and turn cylinder.


If you look in the various sections under

http://www.locksonline.co.uk/acatalo...ce_Locks_.html

you will find various types of lock case that will accept a Euro cylinder.
Some of the better ones have a projecting lever to prevent somebody doing
a
credit card job with the latch and opening it. Others have a little
latch
lever which can be slid across to hold the latch open.

THen for cylinders have a look at


http://www.locksonline.co.uk/acatalo...Cylinders.html



I think that overall this comes close to what you describe. There is a
security downside that if the door is breakable glass then a miscreant can
smash it and easily open the handle without any need for a key.

On the other hand, perhaps the safety aspect is more important in this
application.?


the only problem here seems to be if the door was locked from inside, and
the person became unable to unlock the door i.e. became confused/non
compliant they'd be locked in.

Steve

On Sat, 8 Jul 2006 23:04:41 +0100, R.P.McMurphy wrote
(in article ):


Right all...here is a poser for you.

I need to fit a lock to a door that will alow a user to lock the door
when
they leave and open a door on thier return. however, it mustnt allow
them
to lock themselves in and needs to have some sort of hold off system for
if
not needed.

Any sugestions? a standard night latch is no good, cus they can easily
lock
themselves in. one solution is a mortice nightlatch with hidden snib for
overriding the latch altogether...but these are expensive...over £45
each!
i need 2.

Any sugestions?

steve



You could consider a mortice latch with Euro key and turn cylinder.


If you look in the various sections under

http://www.locksonline.co.uk/acatalo...ce_Locks_.html

you will find various types of lock case that will accept a Euro cylinder.
Some of the better ones have a projecting lever to prevent somebody doing
a
credit card job with the latch and opening it. Others have a little
latch
lever which can be slid across to hold the latch open.

THen for cylinders have a look at


http://www.locksonline.co.uk/acatalo...Cylinders.html



I think that overall this comes close to what you describe. There is a
security downside that if the door is breakable glass then a miscreant can
smash it and easily open the handle without any need for a key.

On the other hand, perhaps the safety aspect is more important in this
application.?


the only problem here seems to be if the door was locked from inside, and
the person became unable to unlock the door i.e. became confused/non
compliant they'd be locked in.

Steve



What do you mean by "locked in" in this context, Steve?

If you think about the typical "Yale" type of night latch, then the person
can lock themselves in, e.g. the handle on the inside can be locked with a
key to prevent it being turned if someone breaks the glass and reaches
through. However, the lock can still be unlocked from the outside with a
key.

With the solution I described, they let themselves in with a key as usual,
but there is specifically not a lock on the inside, so they can't deadlock
the latch and can still get out by turning the knob. Also on this design,
the little lever for holding the latch open is on the mortice below or above
the latch. It can't be operated in a way that will prevent the knob
opening the door from the inside.

Obviously there is a security implication of that in that it is open to
someone smashing the glass; but I imagine that's the second consideration
here and it's more important to have an easy to use escape route etc.

If I'm missing what you mean, please can you explain in more detail.....

"r.p.mcmurphy" wrote in message
...
Right all...here is a poser for you.

I need to fit a lock to a door that will alow a user to lock the door when
they leave and open a door on thier return. however, it mustnt allow them
to lock themselves in and needs to have some sort of hold off system for
if not needed.

Any sugestions? a standard night latch is no good, cus they can easily
lock themselves in. one solution is a mortice nightlatch with hidden snib
for overriding the latch altogether...but these are expensive...over £45
each! i need 2.

Any sugestions?

steve

I'm maybe misunderstanding this but how about a deadlock with a keyhole only
on the outside.

Right all...here is a poser for you.

I need to fit a lock to a door that will alow a user to lock the door
when they leave and open a door on thier return. however, it mustnt
allow them to lock themselves in and needs to have some sort of hold off
system for if not needed.

Any sugestions? a standard night latch is no good, cus they can easily
lock themselves in. one solution is a mortice nightlatch with hidden
snib for overriding the latch altogether...but these are expensive...over
£45 each! i need 2.

Any sugestions?

steve

I'm maybe misunderstanding this but how about a deadlock with a keyhole
only on the outside.


A little more info...door must be lockable from outside, but must be
operable from inside if locked out side...so knowone can get locked in on
purpose

Steve

The message
from "R.P.McMurphy" contains these words:

A little more info...door must be lockable from outside, but must be
operable from inside if locked out side...so knowone can get locked in on
purpose

Our front door does this - the only thing it won't do is defeat the lock
completely. You can always open it from the inside (unless you've double
locked it with the key) but you always need the key from outside.

--
Skipweasel
Pay no attention to that man behind the curtain.

"r.p.mcmurphy" wrote in message
...
Right all...here is a poser for you.

I need to fit a lock to a door that will alow a user to lock the door when
they leave and open a door on thier return. however, it mustnt allow them
to lock themselves in and needs to have some sort of hold off system for
if not needed.

Any sugestions? a standard night latch is no good, cus they can easily
lock themselves in. one solution is a mortice nightlatch with hidden snib
for overriding the latch altogether...but these are expensive...over £45
each! i need 2.

Any sugestions?

Padlock and Hasp ?

or mortice lock with metal plate under the 'inner' keyhole so the user can't
lock it from the inside.

r.p.mcmurphy wrote:
Right all...here is a poser for you.

I need to fit a lock to a door that will alow a user to lock the door
when they leave and open a door on thier return. however, it mustnt
allow them to lock themselves in and needs to have some sort of hold
off system for if not needed.

Any sugestions? a standard night latch is no good, cus they can
easily lock themselves in. one solution is a mortice nightlatch with
hidden snib for overriding the latch altogether...but these are
expensive...over £45 each! i need 2.

Any sugestions?

steve


Steve,

If I read you correctly, you want something that can be locked from outside
using a key --- and a knob inside that can be used to lock or unlock the
door simply by turning --- and it must be of the 'deadlock' type type
prevent the door accidently locking if the wind etc pushes it shut? This
type of deadlock system is common on OAP complexes.

Have a look at the following URL:

http://www.lockshop-warehouse.co.uk/..._Locks_33.html

Or if there is a problem with the wrap use:

http://makeashorterlink.com/?I2924116D

And scroll down the page until you come to:

Union J-26 X 19 - BB Key and Turn Cylinder and this, along with the
accompanying deadlock is what you require OR:

Type into google advanced search:

Key and Turn Cylinder --- (and you will find 14 hits of what you possibly
want)

OR:

Nip down to your local builders merchant (not the D-I-Y sheds) and ask them
if you can look at their lock catalogues (they may even give you one) and
you should find what you want.

Hope this helps



Brian G