Importance

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Abstract

Deboning machines of the type in which an auger conveys ground meat and bone materials through a perforated conduit from one end thereof while exerting pressure on said materials to force meat components out of the conduit through the perforations thereof at the same time that bone components are being conveyed to discharge at the other end of the conduit through and adjustable valve ring which surrounds an extension of the auger and is adapted to control pressure within the conduit, are improved by constructing the valve ring with an internal, circumferential series of indentations confronting the auger extension and extending axially so as to be open to discharge for positively expelling bone components. Preferably, the indentations are of scallop formation and the confronting face of the auger extension passing through the valve ring is provided with a circumferential series of axially extending recesses that cooperate with the indentation of the valve ring in facilitating discharge of bone components. Also, preferably, the confronting faces of valve ring and auger extension are relatively steep and interface to establish a choke interrupted by the indentations of the valve ring and by the recesses of the auger extension except for a narrow band at the discharge end of the interface.

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First Claim