"Ross Mac" wrote in message
...

"Greg" wrote in message
news:IhvXd.614167$Xk.229654@pd7tw3no...
I have a sliding window in my bedroom that I would like to leave open at
night and then have automatically close at around 5:00 or 6:00 when the
morning traffic arrives.

I was thinking I would get some sort of timer mechanism connected to a
relay or electromagnet with enough push power to close the window when the
timer is set.

Any idea how I might do this? Or is there someone who possibly makes this?

Greg s

I'm not afraid of heights. I'm afraid of widths.



If you have compressed air you could use a band cylinder with a 5 way
solenoid connected to whatever timer you want. You will have to fabricate
the brackets and should be able to mount it outside. Hopefully this window
slides easily.....If you are interested I would be willing to spec
something out for you....good luck, Ross

Use city water pressure and do it hydraulically.