turn distribute the hot melt to a number of injection nozzles 18 here shown as being six in number corresponding to a six cavity mold as illustrated in fig3 and 5 during use of the manifold 10 nozzles 18 project into corresponding receiving wells 20 within a mold 22 for the purpose of delivering hot melt into corresponding cavity spaces 24 within cavities 25 of mold 22 each space 24 receives a core 26 that cooperates with a cavity 25 to define the appropriate configuration of space 24 prior to and during the reception of the hot melt cores 26 are withdrawn from the spaces 24 at the completion of each injection cycle cooling channels 28 surrounding each space 24 are supplied with suitable coolant for the purpose of cooling cavity 25 and the product therein nozzles 18 and manifold block 14 are heated by suitable heating apparatus not shown but well understood by those skilled in the art as illustrated particularly in fig5 each nozzle 18 includes an elongated tubular nozzle body 30 having a central passage 32 a coaxial socket 34 is recessed into the discharge end of body 30 in communication with passage 32 socket 34 includes a cylindrical smooth walled inboard portion 36 that is somewhat larger in diameter than passage 32 so as to present an annular shelf 38 that circumscribes the outlet of passage 32 socket 34 also includes an outboard portion 40 that is coaxial with but larger in diameter than inboard portion 36 so as to present a second shelf 42 at the intersection of inboard and outboard portions 36 and 40 an inner stretch of the wall.