Abstract: Poultry carcasses hanging by their legs from a moving overhead conveying line are presented to corresponding carcass processing fixtures moving in a closed loop of travel around an upright axis. As each carcass is presented to its fixture, a holder on the fixture takes control of the carcass and stabilizes it with the breast facing outwardly and the neck hanging downwardly against a sloped centering channel. Once the carcass is stabilized, an arm carrying a slitting knife swings up toward the front throat area of the neck but before the knife can contact the neck skin, a stretcher device mounted in close proximity to the knife but operable in a stretching motion relative to the knife engages the skin and pulls it downwardly into a taut condition to facilitate penetration and severance by the knife. The stretcher is operated in its stretching motion by camming engagement with the underside of a shoulder yoke on the holder as the arm presents the knife to the carcass.

Abstract: The evisceration process removes the entire alimentary tract, including the crop, in one operation and without damaging the tract. After the removal spoon enters the opening at the vent end of the carcass and moves along the breast bone, it swings over against the back wall of the body cavity to clamp the esophagus against the backbone at a point just below the weak region of attachment of the esophagus to the stomach. Simultaneously, a crop loosening hook enters a slit in the neck of the carcass, moves up along the esophagus into the body cavity, and intertwines with the esophagus by rotating through 360.degree.. During the time that the esophagus is clamped against the backbone by the removal spoon, the loosening hook is pulled back down along the esophagus, stripping the crop from its connective tissues and loosening the crop for withdrawal. When the removal spoon is then withdrawn up and out of the cavity, the esophagus pulls the loosened crop up and out of the carcass with the rest of the viscera.