Device for severing the meat adhering to bones from these bones

Apparatus for severing meat adhering to bones from such bones by compressing the bones with the adhering meat within a press cavity having an upright axis, the apparatus comprising a cylindrical side wall defining the cavity, a piston insertable into said press cavity from below and movable within the cavity along said axis, an abutment member for closing the press cavity at its upper end during compression of the bones, said abutment member being movable transversely to the axis of said press cavity between a position in registration with the press cavity and a position remote thereof, the side wall having openings oriented transversely to said axis and distributed over a substantial portion of the length of the side wall for the passage of a meat mass being given a pasty condition under the action of the compression pressure generated by the piston when it is moved toward the abutment member, the openings being impermeable for the bones, a filling member having a filling cavity for meat and bones to be compressed, and filling member being movable transversely to the axis of said press cavity between a filling position located remote from the axis of said press cavity and a discharge position located at the area of the axis of said press cavity so that the filling cavity directly adjoining said press cavity in the discharge position of said filling cavity and the meat and bones to be compressed can fall from the filling cavity into the press cavity after removal of the abutment member from said position above the press cavity, and straight guide means operatively coupled with the abutment member and the filling member and extending substantially perpendicularly to the axis of the press cavity for guiding movements of the abutment member and the filling member in a common plane.

Apparatus for separating meat adhering to bones from the bones by compressing bones with the adhering meat in an upright cavity having a longitudinal, upright axis, the apparatus comprising a compression cylinder concentric with the axis having a plurality of generally radially oriented openings communicating the cavity with an exterior of the cylinder and formed to prevent the passage of bones therethrough;

• a compression piston reciprocably movably disposed within the cylinder for movement from a first, lower end to a second, upper end of the cylinder;
• an abutment member for closing the second end of the cylinder;
• means for moving the abutment member transversely to the cavity axis into and out of registration with the cylinder so as to alternatively close and open the second cylinder end;
• a filling member for receiving and holding a mass of meat and bones to be compressed and disposed generally above the compression cylinder;
• means for moving the filling member into and out of registration with the compression cylinder;
• means for closing a lower end of the filling member when the filling member is out of registration with the cylinder and for opening the filling member when it is in registration with the cylinder, so that the filling member when filled with the mass of meat and bones gravitationally discharges the mass into the cylinder when in registration therewith;
• means for forcing the piston during a power stroke from the first end towards the second end while the abutment member is in registration with the cylinder to thereby compress the mass of bone and meat in the cylinder, give the meat of the mass a pasty condition and force it through the openings to the exterior of the cylinder for further use while the bone in the mass is retained within the cavity;
• and means for removing the bones from the cavity at the end of the power stroke, whereby the reciprocal movement of the piston within the cylinder and the transverse movement of the abutment member relative to the second cylinder end removes portions of the mass of bones and meat which may adhere to the cylinder and the abutment member to facilitate the unimpeded operation of the apparatus.