Dual hinged side delivery head for extruders

Claim 1

IN A SIDE DELIVERY HEAD FOR EXTRUSION APPARATUS THE COMBINATION OF AN EXTRUSION HOUSING DEFINING A CYLINDER, A SIDE DELIVER HEAD DEFINING AN ANGULAR OPEN PASSAGE OPERATIVELY MOUNTED ON THE HOUSING SO ONE END OF THE PASSAGE IS IN CONCENTRIC COMMUNICATION WITH THE CYLINDER, SAID HEAD BEING PIVOTALLY MOUNTED WITH RESPECT TO THE HOUSING AND BEING SPLIT LONGITUDINALLY SUBSTANTIALLY IN HALF THROUGH THE CENTER OF THE OTHER END OF THE PASSAGE, SAID HALVES HAVING RECESSES SUBSTANTIALLY CENTRALLY ALIGNED THEREIN ALONG THE AXIS OF THE OTHER END, MEANS TO HINGE TOGETHER THE SPLIT PORTINS OF THE HEAD, MEANS ENGAGING THE SPLIT HALVES TO SECURE THEM IN FLUID TIGHT RELATIONSHIP, A TUBE REMOVABLE RECIEVED IN THE RECESSES OF THE SPLIT HALVES OF THE HEAD AND HELD IN FLUID TIGHT RELATION WHEN THE HALVES ARE HELD TOGETHER IN LFUID TIGHT RELATION, ONE END OF SAID TUBE BEING IN CONENTRIC ALIGNMENT AND LYING IN THE SAME PLANE AS THE OTHER END OF THE PASSAGE, SAID END OF SAID TUBE BEING OF SIMILAR SHAPE TO THE OTHER END OF THE PASSAGE BUT SLIGHTLY SMALLER.