Tor2Web allows access to Hidden services from clearnet. However I would like to know if there some other gateways which will allow connections to hidden services on custom port and allows different communication protocols from clearnet?
You could configure a tor relay and so set up the
SocksPort with your external IP and a port. But in this way, who intercept the connection will be able to see which HS are you trying to connect to. Plus this is unauthenticated and unencrypted (this is the worst part) more info here.
Keep in mind that in this case your relay will be seen as an open proxy, I don't know what someone's abuse could cause to you. I mean that you could be responsible for illicit activity (but I repeat, these are just suppositions).