HTTP Proxy problem in SOAP based webservice

While accessing my application through a proxy bypassed system, the
application runs fine, but on a proxy configured machine its gives me a
timed out error.

Below is the pseudo code of what i am trying…

     factory =“webservice_url”).create_rpc_driver

The Error it gives is:

'connection attempt failed because the connected party did not

properly respond after a period of time, or established connection
failed because connected host has failed to respond’

Need help to configure http proxy settings programatically. Any
pointers would be of great help.

I have also seen a ruby class httpconfigloader.rb, would this be of
any help?

Anyway of configuring proxy will do, as i need it urgently.

Thanks in advance.

Note: I have tried out Restfull webservices and they are working without
any problem.