A socket holder for providing increased holding power, rotational release, and biased position return. A self converging communication fair rate control method provides a fair rate that is utilized to determine a connection rate for communicating information from a plurality of virtual connection queues to a class of service buffer. The gas control valve is operable to adjust the supply of gas to the gas burner based on the measured pressure of the gas. The first bearing 21 carrying the upstream part of the first shaft and the second bearing 40 carrying the upstream part of the second shaft.