Butchering – Deboning – Plow type
Patent
1994-12-19
1996-04-30
Little, Willis
Butchering
Deboning
Plow type
A22C 1704
Patent
active
055120130
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a device for detaching and/or removing meat and the like from animal heads, comprising a conveyor line with a series of holders for heads, placed one after the other, spaced apart, in the direction of conveyance, on which holders essentially identically shaped animal heads with essentially the same dimensions can be placed, and processing stations disposed along the conveyor line at a distance from each other, past which stations the animal heads are moved in succession by means of the conveyor line, and where the animal heads are treated, at least one first station situated downstream of one or more preliminary processing stations, viewed in the direction of conveyance, having scraper means for scraping meat and the like from an animal head processed in preceding stations.
WO/NL88/07329 already discloses a device of the type mentioned in the preamble. With such a device it has been found possible to process animal heads industrially in an economically profitable manner. For this purpose, an animal head is placed by hand in the device and preparatory operations are then carried out by hand in successive stations. The head then passes a station with mechanically operated scraper means which move along it from the snout to the back of the head, thus scraping away from the head at least most of the meat on the outside of the head. The head subsequently passes a number of other stations, where for the most part manual operations are carried out, for example cutting away the meat loosened by means of the scraper means, removing meat and the like from inside the head, and removing and boning the lower jaw. For removing the contents of the skull, the head is sawn lengthwise through the middle in a station.
The disadvantage of this known device is that a relatively large number of operations still have to be carried out by hand. This is not only relatively expensive, but it also means that for economic reasons meat is still left on the head. In addition, boning an animal head by hand is unattractive, given the working conditions.
The object of the present invention is to provide a device of the abovementioned type by which more operations can be carried out without the intervention of human hands, so that the abovementioned disadvantages of the known device are eliminated. For this purpose, the without the intervention of human hands, so that the abovementioned disadvantages of the known device are eliminated. For this purpose, the device of the type mentioned in the preamble is characterised in that one or more stations situated upstream and/or downstream of said first station comprise mechanically driven separating means essentially adapting to the shape of the animal head being processed, for preliminary processing or further processing an animal head.
The method according to the invention is preferable for processing an animal head fully automatically. This method is carried out in such a way that a central longitudinal cut is made in the chin part, the meat on the outside of the lower jaw is loosened by a processing means moving along the jaw line, glands on the inside of the lower jaw are cut away in succession by pins, and the meat is then pulled away from the lower jaw by moving pins along the inside of the lower jaw, a circular incision is made around the eye sockets and in the upper lips at the snout, and scraper instruments following the skull contour of the animal head then scrape along skull and jaw in the lengthwise direction of the animal head from the snout, following which the pin-shaped elements pull away the jaw muscle attachment at the temples, and the lower jaw is removed and, after removal of the lower jaw, scrapers moving along the skull in the lengthwise direction in the vicinity of the original position of the lower jaw remove remaining meat, and pin and scrapers moving to and fro treat the inside of the skull after the lower jaw has been removed. This method differs greatly from the method which is followed when an animal head is boned by hand or largely by hand,
REFERENCES:
patent: 2186273 (1940-01-01), Schmidt
patent: 4543689 (1985-10-01), Couture
patent: 4918788 (1990-04-01), Passchier
patent: 4993114 (1991-02-01), Meyer et al.
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