of course manual override of any automatic system is possible and control schemes consistent with embodiments of the invention but not specifically disclosed here will occur to those of ordinary skill in the art fig3 is a cross section of a injection ring in accordance with embodiments of the invention injection ring 100 may be constructed in two parts and then fastened together and sealed in an exemplary embodiment the injection ring 100 may take the place of a section of cage 90 in a press 70 the inner surface 170 of the ring may be configure to be coextensive with adjacent section of the cage 90 the embodiment of the injection ring of fig3 includes six ports 180 into which injectors 10 may be installed each port 180 has a tapped and threaded region 190 that interfaces with the threaded region 40 of the injector 10 to secure the injector 10 in the injection ring 100 see fig1 the embodiment of fig3 has two essentially horizontal ports 180 opposite each other the other four ports in this embodiment are oriented approximately thirty degrees either side of these two horizontal ports 180 all of the ports of this embodiment point essentially at the center of the injection ring 100 as installed in the press 70 fig4 is a cross section of a injection ring in accordance with embodiments of the invention in this embodiment of an injection ring 100 there are also six ports 180 as in the embodiment in fig3 there are two opposing horizontal ports 180 at the center of the ring 100.