RE: OT : Other people's homes - I think I'll join the fray...

["Gareth Cook/STA/Lotus" <gcook@xxxxxxx>]

And these Magnet releases jobbies are
available from Maplin/RS/Other ?

the £200 option by Dr John is a teensy
wee expensive ! And I need 2 of these....

I understand many things - but not the
world of electro-magnetics...! I've seen the nice little buttons I want -
almost flush, round silver ones - fiver from maplin...

G.

Gareth Cook Senior Engineering Specialist GeT IT Engineering,Networks,Security IBM SWG, Lotus Park, Staines, TW18 3AG

Office:  +44 (0) 1784 445 166 Mobile:  +44 (0) 7980 445 166 Fax:      +44 (0) 1784 499 166

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----- Forwarded by Gareth
Cook/STA/Lotus on 12/06/2001 09:50 -----

Discussion
Main Topic

"Mark Kaye" <mark@xxxxxxx>
Today 09:48

.

Subject: .	RE: [ukha_d] OT : Other people's homes - I think I'll join the fray... .
Category:

Of course, the easiest method
would be a couple of springs.  One for each door.  Use the
magnets, which are normally on, push against the spring to close.
 Press magnet release button and the spring will open the door.
 Easy and cheap! :)  Getting the spring right is the only tough
bit.
 
M 
 
 -----Original Message-----
From: James Hoye [mailto:james.hoye@xxxxxxx]
Sent: 12 June 2001 09:44
To: ukha_d@xxxxxxx
Subject: RE: [ukha_d] OT : Other people's homes - I think I'll join the
fray...

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---

This goes back to the mail I put on this
list a few months back - I want to put doors on the side but with no
handles - so the doors are as flush as possible - with a surround (so they
cant be pushed inwards) 

So I STILL need a system where I have a button, that actuates a release
mechanism to push the door out - it can be held when closed with magnets -
ANYONE got any ideas ? What I need is a good electrical personage
(!)  
 
Talking about DIY motorised
curtains and old wiper motors recently has suggested an idea on this one.
 Why not hold the door closed with magnetic catches as you suggest,
and use a salvaged central locking solenoid to push open the door from
inside at the flick of a button/switch/macro.  These things require a
12v DC supply (quite a high current I believe, but only for a short time.
 Something out of a Vauxhall Cavalier (A-F reg) or Astra (C-H reg)
should do the trick.  Of course, you could go posh and use a Rover one
:)
 
I have a (new) relay that has
'open' and 'closed' terminals which connect to the driver's door locking
switch.  When the state is reversed, the relay momentarily switches
the required polarity current through the solenoids.  Something like
HomeVision could provide the switching signal for the relay I'm sure.
 Sod's law reigns supreme in that until recently (3-4 months ago) I
had a couple of nearly new solenoids laying about.  I think I gave
them to a mechanic friend on the offchance that he might actually need one
a some time in the future - I didn't need them as I stopped driving the
Cavalier they fitted back in 1993!!!  If you're interested, I'll see
if he can find one when I'm next round there.
 
James H 





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