Butchering – Carcass subdivision
Patent
1996-09-11
2000-09-19
Little, Willis
Butchering
Carcass subdivision
452126, 452161, A22C 2518
Patent
active
061203696
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
This invention relates to a method and a machine especially for cutting fish pieces, e.g. pieces/slices of a size ready to be served without further cutting, from fish fillets, but the method and machine may also be used for cutting pieces of meat. The fish pieces may have the form of elongated pieces as a result of the fact that the fish fillet has been cut longitudinally, or they may result from longitudinally and/or laterally cutting of fish fillets.
A general object of the present invention has been to provide machinable boned and skinned fish pieces which may have a size readily to be served, e.g. a uniform size ready for the pan. Fish pieces having appropriately equal circumferential sizes, possibly with varying thicknesses may prove to be a valuable raw material when making fish courses in restaurants and for parties. One possible fish piece shape is the square shape, but, according to the invention, the conditions intentionally having been adapted for mechanical production of boned and skinned fish pieces having a plurality of circumferential shapes, inclusive such fish piece shapes where one restriction edge is made by letting a knife or another cutting tool more or less follow the adjacent edge of the fillet.
From NO patent application No. 92,1899 it is previously known a method and a machine for cutting slices from non-skinned fish fillets, where the fillets are fed toward a freezing drum causing freezing and securing the fillet firmly at the skin side, in order to allow convenient and efficient working of the fillet in this securely anchored position. Thereby, the fish fillet is orientated such that its longitudinal direction coincides with the circumferential direction of the freezing drum. A cutting tool in the form of a driven endless band knife's active cutting edge is positioned at a radial distance from the drum mantle surface, corresponding to the desired thickness of fish slices (cut parallel to the skin), and where, from the fillet sticking to the freezing drum, a fish meat slice is cut, the divitional plan thereof extending substantially parallel to the drum circumference.
SUMMARY OF THE INVENTION
Such a method which can be used in connection with the present invention in order to realize the general object of the invention in association with a freezing drum and, thus, utilize the advantages thereof in fish fillet treatment, is known in combination with skinning.
NO patent application No. 921899 discloses a displacement of the band knife's cutting edge step by step in relation to the drum circumference between two succeding rotations of the freezing drum carrying fillets, frozen to the drum at the skin side, in order to cut further fish meat slices successively, parallel to the first slice and to the skin side, one fish meat slice per freezing drum rotation.
Likewise, such a method can be used in connection with the present invention whenever there exists a need for relatively thin fish pieces.
It should be noted that prior art working of fish fillets utilizing a freezing drum, exclusively limits itself to cutting operations where the cuts extend parallel to or approximately parallel to the drum circumference and, thus, parallel to the skin side frozen to the drum.
By means of commonly known mechanical skinning methods, only skinned fillets having a non-cut circumferential shape are obtainable. By means of the method according to NO patent application No. 921899, fillet-shaped fish meat slices having somewhat varying sizes and shapes are achieved. These have been found to be well suitable for smoking. In mechanical fish fillet working and processing, the state of the art does not allow--utilizing the advantages of a freezing drum--the achievement of e.g. equal-sized and uniformly shaped fish pieces of a size ready to be served (after cooking), ready to be put on a frying pan, etc. In some fish courses, oblong fish pieces are desired, whilst in other fish courses, square pieces are preferred.
Used in combination with a generally known skinning method, r
REFERENCES:
patent: 1920339 (1933-08-01), Baader
patent: 1921440 (1933-08-01), Taylor
patent: 4043003 (1977-08-01), Lemmon
patent: 4726044 (1988-02-01), Braeger
patent: 5163865 (1992-11-01), Smith
patent: 5507690 (1996-04-01), Eide
Little Willis
Trio Industrier AS
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