Re: Metal Plate

["ABLE1" <royboynospam@xxxxxxxxxxxxx>]

Well it would seem that my absolute guess was spot on.

Oh goodie for me!!!!

Les




"RockyTSquirrel" <gafa@/nospam/usa.com> wrote in message
news:1NadnUIUCITjvLXWnZ2dnUVZ_gCdnZ2d@xxxxxxxxxxxxxxx
> ademco  made one back in the 70's  that had a complete switch/magnet  in
> the
> jam  and a metal plate on the moving part..
> (no magnet under the metal plate..)
> the units could be used  on a metal door without  the metal plate..
> the unit  worked best if the switch/maget  was placed in a wooden jam,
> cause if a metal jam  the magnet would over time magnetize the jam  and
> the
> switch would become questionable at best....
> we used hundreds of them up till around 1981.
> RTS
>
>
> "CH®IS" <sh@xxxxx> wrote in message news:pnSVm.56159$Db2.17754@xxxxxxxxxxx
>> "mleuck" wrote...
>> > On Dec 15, 9:28 am, "Bob La Londe" <nos...@xxxxxxxxx> wrote:
>> > > Just a metal plate. That's all that was found on the top of the
>> > > doors.
>> > > Held down with little nails. It worked for a long time. The plastic
>> > > contact recessed in the jamb cleared when the doors were close. What
>> > > heck
>> > > was it and how did it work?
>> > >
>> > > It finally failed. That's how I discovered this little oddity. I
>> > > think
> I
>> > > recall somebody on here mentioning something like it in the past.
>> >
>> > I've seen that before but there was a magnet under that plate, strange
>> > setup
>>
>> Which would magntize the plate and keep it working when the door warps
>> and
>> alignment is lost???
>>
>> Just guessing... never seen it done.
>>
>> - Chris
>>
>
>