Butchering – Deboning – Pressure type
Patent
1993-03-11
1994-08-09
Little, Willis
Butchering
Deboning
Pressure type
452135, 452141, A22C 1704, A22C 900
Patent
active
053361261
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention refers to an apparatus for obtaining nutritive substances by extracting bones and meat which optionally adheres thereon, comprising a receptacle for accommodating the bones and the liquid used for extracting, preferably water, in which receptacle at least one rotating stirring member is provided, the receptacle being tiltable about a horizontal axis so that its content gets to a coarse sieve for separating the bones and the coarse elements from the liquid and the fine elements.
As is well-known, bones which are obtained by manually dividing slaughtered animals contain, besides adhering tissue and meat, also a considerable content of high-quality nutritive substances. An apparatus for retrieving them, disclosed in Austrian patent 374,092, places the bones in water containing receptacle, stirs and, optionally, strikes the contents and then subjects the contents to a sieving process for collection of the liquid and fine constituents beneath the sieve. The residual mass containing the bones is fed from the sieve into a press cylinder and is pressed for obtaining the residual liquid. A high portion of the nutritive substances in or on the bones can thereby be obtained; however, the separation of the liquid constituents from the residual constituents is too coarse. Namely, if the sieve is made too fine, too much of the nutritive substances get into the press chamber, where they can only be partially recovered. If, however, the sieve has comparatively large penetration openings, fine bone parts or fibers may pass, which in most cases is undesirable.
From German published patent application DE-OS 2,157,850 it is known to obtain useful substances from bones and meat adhering thereon by comminuting the cooled starting material and to mix it with water or ice, whereupon the suspension obtained is centrifuged into a solid phase and a liquid phase. This procedure requires great effort in apparatus and has the disadvantage that a considerable heating up occurs during centrifuging which must be compensated by supplying additional cooling.
SUMMARY OF THE INVENTION
The invention DE-A 1,077,558 discloses an apparatus for obtaining the meat remaining on extracted bones in which the material to be treated is introduced in a rotating hollow drum provided with slots on its periphery. In the interior of the drum the meat is scraped off the bones by knives fixed to the jacket of the drum. The meat pieces are fed through slots of the drum with supplied boiling water and fall into a collection conduit from which they are transparted into inclined troughs. In these troughs the fat is dissolved and entrained bone fragments can be deposited. From the troughs the water transporting the meat pieces is conveyed by bucket wheels into an elevated collection channel which feeds the meat pieces to a container in which a stripper removes the fat floating on the water. By means of a further bucket wheel the meat pieces are conveyed with a chute to a sieve for removing the water. This apparatus requires a considerable effort and requires the process to be stopped whenever the sieve, the channels or the troughs must be cleaned.
Lastly, GP-A 1,162,166 discloses an apparatus in which broken bones and adhering meat pieces are supplied to a sieve drum from above by a conveyer. The components penetrating through the sieve jacket are collected by a tube and are conveyed to a further sieve drum from above. Since the supplied material has only a short time to pass through the openings of the sieve drum, not all useful components are recovered.
SUMMARY OF INVENTION
The invention has as one of its objects to provide an improved apparatus, to avoid the disadvantage of the coarse separation, and to avoid breakdowns of the operation. The invention solves this task--starting from the initially described apparatus--by positioning coarse sieve within a trough from which an exit leads to a further sieve formed by a rotating sieve roller driven for rotation about a horizontal axis, the sieve openings of which being
REFERENCES:
patent: 3154805 (1964-11-01), Egee et al.
patent: 3372723 (1968-03-01), Elich
patent: 3396768 (1968-08-01), Kurihara
patent: 3580725 (1971-05-01), Kuster
patent: 3734000 (1973-05-01), Ziener
patent: 4536920 (1985-08-01), Amersfoort
patent: 4575899 (1986-03-01), Prosenbauer
patent: 4637094 (1987-01-01), Matsubayashi
patent: 4791705 (1988-12-01), Corominas
patent: 4815165 (1989-03-01), Gibson
patent: 4899890 (1990-02-01), Ewing et al.
patent: 5205777 (1993-04-01), Hohenester
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