Fleshing machine
AssigneeHer Majesty the Queen in right of New Zealand
InventorsSimon P. Van Der Park, Angus A. J. Robertson, David P. Cairns
Life of this patent
Estimating the term…
Abstract
A fleshing machine for removing fat and fleshy membranes from a hide or pelt, which includes a fixed position roller with many shaped cavities. Each cavity extends from an opening on the surface of the roller into the roller. A plurality of knives are contained one or more within each cavity. Each knife has a shaped cutting head which, in use, protrudes from the surface of the roller. The knives and cavities are so shaped that each knife is capable of limited reciprocal movement in a direction perpendicular to the axis of the roller.
Claims21
An improved roller for a fleshing machine, the machine comprising:
- a supporting means for supporting or holding a hide or pelt;
- a roller of a fixed position type and being capable of rotation about an axis, driving means for rotating the roller about the axis;
- and means to produce relative movement between the hide or pelt and the roller;
- wherein the roller improvement comprising:
- the roller containing a plurality of shaped cavities with each cavity extending into the roller from an opening on the surface of the roller;
- a plurality of shaped knives, one or more of the knives being contained within each cavity, each knife having a shaped cutting head which in used protrudes from the surface of the roller, and a shank and a base shaped such that each knife is capable of limited reciprocal movement in a direction perpendicular to the axis of the roller, each cavity being shaped so as to permit the limited movement of each knife and to retain the base of the knife within the cavity when the machine is in operation or stationary;
- the positioning and shape of the cavities within the roller and the shape of the knives being such that, in operation, the cutting head of each knife contacts the surface of the hide or pelt with an approximately constant force and at approximately a right angle to the surface of the hide or pelt as the surface passes the roller and such that each cutting head is also capable of limited movement in a plane substantially perpendicular to a plane of reciprocal movement of the knife.
An improved knife for a fleshing machine, the machine comprising:
- a supporting means for supporting or holding a hide or pelt;
- a roller which is a fixed position roller and which is capable of rotation about an axis, the roller containing a plurality of shaped cavities, each cavity extending from an opening on the surface of the roller into the roller;
- driving means for rotating the roller about the axis;
- means to produce relative movement between the hide or pelt and the roller;
- a plurality of shaped knives;
- the improvement comprising:
- one or more knives being contained within each cavity, each knife having a shaped cutting head which in use protrudes from the surface of the roller, and a shank and a base such that each knife is capable of limited reciprocal movement in a direction perpendicular to the axis of the roller, each cavity being shaped so as to permit limited movement of each knife and to retain the base of the knife within the cavity when the machine is in operation or stationary;
- the positioning and shape of the cavities within the roller and the shape of the knives being such that, in operation, the cutting head of each knife contacts the surface of the hide or pelt with an approximately constant force and at approximately a right angle to the surface of the hide or pelt as the surface passes the roller and such that each cutting head is also capable of limited movement in a plane substantially perpendicular to the plane of reciprocal movement of the knife.
Dependencies are inferred from the claim text.