Extruder with compacting force control mechanism

Claim 1

IN A COMPACTING AND EXTRUDING MECHANISM WHEREIN A FEEDING MEANS IS EMPLOYED TO FEED AND TO COMPACT MATERIAL THROUGH AN EXTRUDING CHAMBER, THE COMBINATION: A RESTRICTING MEMBER MOUNTED IN SAID EXTRUDING CHAMBER FOR LIMITED LONGITUDINAL AND TRANSVERSE MOVEMENT FOR EFFECTING VARIATIONS IN RESTRICTION TO MOVEMENT OF MATERIAL THROUGH SAID CHAMBER, A FIRST SUPPORT MEMBER FOR SAID RESTRICTING MEMBER ALLOWING LIMITED LOGNITUDINAL MOVEMENT OF SAID RESTRICTING MEMBER IN THE DIRECTION OF COMPACTING FORCE FROM A FOWARD TO A REARWARD POSTION, A SECOND SUPPORT MEMBER FOR SAID RESTRICTING MEMBER ALSO ALLOWING REARWARD LONGITUDINAL MOVEMENT BUT ACTUABLE FOR POSITIONING SAID RESTRICTING MEMBER TRANSVERSELY OF SAID EXTRUDING CHAMBER, MEANS FOR CONTROLLONG THE MOVEMENTS OF SAID RESTRICTING MEMBER, COMPRISING: A RESILIENT SUPPORT MEANS CONTACTING SAID FIRST SUPPORT MEMBER AND RESILIENTLY SUPPORTING SAID FIRST SUPPORT MEMBER IN A LONGITUDINAL DIRECTION WITH S SUBSTANTIALLY UNIFORM LONGITUDINAL FORCE OVER A LIMITED RANGE OF MOVEMENT; A HYDRAULIC FORCE GENERATING MEANS TO AFFORD A RESILIENT AND LIMITING FORCE, INCLUDING A FORCE ACCUMULATOOR IN SAID FORCE GENERATING MEANS; A HYDRATLIC TRANSVERSE FORCE APPLYING MEANS TO ACTUATE SAID SECOND SUPPORT MEMBER IN TRANSVERSE DIRECTION WHILE ALLOWING LIMITED LONGITUDINAL MOVEMENT THEREOF WITH SAID RESTRICTING MEMBER AS ALLOWED BY SAID RESILIENT SUPPORT MEANS; A CONTROL CONNECTING MEANS PROVIDING SELECTIVE CONNECTION AND DISCONNECTION OF SAID HYDRAULIC FORCE GENERATING MEANS TO SAID TRANS-