This server-side coremod fixes the disconnect.overflow error that players might get on some 1.4.7 servers, most often caused by having a large amount of machines in one location.
The cause of this problem is a check in TcpConnection.java#processReadPackets() where the server checks the size of the send queue for the user. If the queue is larger than 2MB, the server simply drops the player connection. If a player joins the server in an area with a large number of machines, they can easily exceed the maximum queue size.
This mod simply patches the server to increase the maximum queue size to 20MB.