CA1279789C - Machine for severing the meat adhering to the bone - Google Patents
Machine for severing the meat adhering to the boneInfo
- Publication number
- CA1279789C CA1279789C CA000555718A CA555718A CA1279789C CA 1279789 C CA1279789 C CA 1279789C CA 000555718 A CA000555718 A CA 000555718A CA 555718 A CA555718 A CA 555718A CA 1279789 C CA1279789 C CA 1279789C
- Authority
- CA
- Canada
- Prior art keywords
- compressing chamber
- piece
- cross
- compressing
- bones
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
ABSTRACT OF THE DISCLOSURE
A machine for severing the meat adhering to bones by pressing the bones in a compressing chamber having a vertical axis as a compressing piston which can be raised in the compressing chamber. the compressing chamber is, during pressing operation, closed at the top by a cross-piece swivellable around a vertical axis and absorbing the compression pressure. This cross-piece can, for this purpose, be locked with its one end on a column. The cross-piece is swivellably mounted around another column located at the other end of the cross piece and is a single part with a protrusion provided with a conical mantle surface.
A machine for severing the meat adhering to bones by pressing the bones in a compressing chamber having a vertical axis as a compressing piston which can be raised in the compressing chamber. the compressing chamber is, during pressing operation, closed at the top by a cross-piece swivellable around a vertical axis and absorbing the compression pressure. This cross-piece can, for this purpose, be locked with its one end on a column. The cross-piece is swivellably mounted around another column located at the other end of the cross piece and is a single part with a protrusion provided with a conical mantle surface.
Description
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The invention relates to a machine for severing the mea-t adherin~ to bones from said bones by pressing the bones having meat adhering thereon.
Machines of this type are known, which comprise a compressing chamber having a vertical axis arranged with a frame.
The side wall of this chamber can be raised in sealing engagement with an abutment member. A press piston can be mounted in this chamber from the bottom side and the chamber can be closed at its upper end by the abutment member for the pressing operation, said abutment member being swivellable around a vertical axis between a closing position located above the compressing chamber and a position giving free the compressing chamber. The abutment member is cylindrical at its bottom facing the compressing chamber a protrusion sealingly entering into the compressing chamber from above when the chamber is raised. The wall of the compressing ~hamber has openings for the passage of the meat converted into a pasty position under the compression pressure but is impassable for the bones. A substantially horizontal supporting surEace for the bones to be introduced into the compressing chamber laterally adjoins the upper end of the 2U compressing chamber, and above the compressing chamber, spaced apart therefrom, there is provided a horizon-tal cross-piece, which is anchored on two columns of the frame and which is contacted by the compressing chamber in its closing position and which counteracts the compression pressure during the pressing 2~ operation. By means of such devices, the bones having meat adhering thereon can be pressed with low expenditure for recovering residual meat, which passes through the openings of the wall of the compressing chamber in a pasty condition and is collected, whereas the compressed mass of bones, after finishing_ the pressing operation and after swivelling aside the abutment, is shifted out of thè compressing chamber in upward direction and is removed. In the conventional construction, the abutment member consists of a piece of tube closed on its bottom and forming in its position closing the compressing chamber some sort of extension of the wall of the compressing chamber. In this position the abutment member contacts with its upper end the stationary cross-piece, and this piece and the mentioned both columns transmit the load exer-ted by the compressing pressure into the frame.
The present invention simplifies this device to lower its costs, whilst simultaneously improving the sealing Pffect at the upper front end of the compressing chamber during the pressing operation.
u! Accordiny to the present invention there is provided a ; ~ machine for scrving ~he meat adhering to bones from said bone by pressing the bones, comprising a frame, a compressing chamber having a vertical disposed axis withln the frame and having a side wall, a horizontal cross-piece disposed above the 1~ compressing chamber and including an abutment member which absorbs compressing pressure during a pressing operation, said side wall of said compressing chamber being adapted to be raised in sealing engagement with said abutment member, a press piston adapted to be moved in the compressing chamber and clase the 2U chambers on its bottom, said abutment member being adapted to close the upper end of said compressing chamber dur~ng the pressing operation, said abutment being swivellable around a first vertlcal column between a closing position located above the compresslng chamber and a position giving free access to the 2~ compressing chamber and carrying on the bottom facing the compressing chamber a protrusion sealingly entering from above into the comprsssing chamber when the compressing chamber is lifted into engagement with the abutment member, openings in the wall of the compressing chamber for the passage of a meat 3~ converted into a pasty condition under the action of the compression pressure, said openings being impassable to ths bones, a substantially horizontal supporting surface ~or the bones having me~t adhering thereon to be introduced into the compressing chamber, said supporting surface laterally adjoining the upper end of the compressing chamber, said abutment member being adapted -to be anchored on a further column oE said frame duriny the pressing operation and being combined with he protrusion to a single component part being swivellable around said first vertical column, said protrusion being provided with a conical mantle surface for centering and sealing purposes.
Thus, according to the invention, the abutment member is combined with the cross-piece and with the protrusion to one single component part being swivellable around the vertical axis being formed by said one column, the protrusion being provided lu with a conical mantle surface. While in the conventional construction two component parts being separated one from the other, i.e., the abutment member E~ se and the cross-piece, are required for transmitting the compress~on pressure into the frame, said both component parts are, in the present invention, combined to one signal component part and are swivellable together around the vertical axis. This has a premise that the cross-piece can be loosened from the said one column but can still reliably b~ anchored thereon, in order to be able to transmit the compression pressure into the frame. The invention provides also the advantage that, on account o the simplified construction~ any tolerances are avoided whlch would be critical in the conventional construction at the surface, along which the abutment member engages the cross-plece. Also the operation of the machlne is simplified because the common component part 2~ forming the cross-piece and the abutment member can more easily be handled than the separate abutment member havlng to be moved below the cross-piece in the conventional construction.
Furthermore, the conical protrusion provides an automatic ~ centering means for the abutment member relative to the - 3U compressing chamber when applying the compression pressure, so that an unobjectable seal is obtained at the upper end of the compressing chamber.
According to a preferred embodlment of the invention, ~5 .
the cross-piece can be swivelled in its posi-tion giving free access to the compressing chamber in a direction towards the side located opposite the supporting surface. The cross-piece thus provided no hindrance for filling the compresslng chamber and simultaneously forms a guide means for the compressed residual mass when expelling and removing same.
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According to a further embodiment of the invention, the cross-piece is in ths shape of a hook at its end located opposite the vertical pivotal axis and embraces, in the position absorbing the compression pressure, with this hook in a recess of the other column not forming the swivelling axis. This results in a reliable anchoring of the cross-piece on the column during the pressing operation, so that the load is reliably absorbed. Thus that end of the cross-piece which is located opposite the swivelling axis can be blocked on its column in that position of 1~ the cross-piece in which it absorbed the compression pressure.
For facilitating operation, the cross-piece can be provided with a handle at its end located opposite the swivelling axis.
The present invention will be further illustrated by 2~ way of the accompanying drawings in which:
Figure 1 shows in a side elevation and partially in a section the essentially parts of a machine according to one embodiment of the present invention with the wall of the compressing chamber in its lowered position and with the cross-piece in its closing position;
Figure 2 is a section along the line II-II of Figure 1, soms parts being shown in a broken away condition;
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Figure 3 is a similar v~ew to Figure 1, partially in a section, but with the wall of the compressing chamber lifted against the cross-piece; and 3~
Figure ~ is a plan view the arrangement for the swivelling the cross-piece.
The machine comprises a frame 1 in which a hydraulic cylinder 2 is rigidly fixed. A piston 3 can be moved from this cylinder 2 and introduced into a compressing chamber 4 having a vertical axis 5. The compressing chamber 4 is in the shape of a cyllnder of circular cross section closable at i-ts upper front end 6 by an abutment for the pressing operation in the form of a cross-piece 7. The tubular wall 8 of the compressing chamber 4 has several openings holes or slots 9, through which openings can u flow the meat which has been converted into a pasty condition under the action of the compression pressure. However, these openings 9 cannot be passed by the bones. The wall 8 with its openings 9 thus forms a perforated or slotted filter for separating the meat from the bones. The meat flowing th~ough the openings 9 passed into an annular chamber 10 surroundlng the wall 8 and formed a mantle tube 11. The meat may accumulate in this annular chamber 10 and flow ln outward direction through several radial outlets 12, to which hoses (not shown)-may be connected leading to a collecting vat.
The wall 8 of the compressing chamber 4 is, within limits, vertically displaceable between a lowermost position shown in Figure 1 and an uppermost position shown in Figure 3.
in the lowermost position (Figure 1), the wall 8 is lowered to 2~ such an extent that its upper front end 6 is located at a level lower than the cross-piece 7, l.e. is located at such a distance below the cross-piece 7 that it can be swivelled to one side in direction of the twin arrow 13 (Figure 4), so that it can be moved into a position in which the bones 1~ to pressed (~igure 3) 3U can be introduced from above into the compressing chamber ~. For this purpose, there is conveniently provided a horizontal supporting surface 15 for the bones to be pressed or such a supporting surface which is slightly inclined in direction towards the compressing chamber (Figure 4), while supporting a~
surface ad;oins -the fron-t end 6 of the compressing chamber 4 assuming the aforesaid position. The suppor-ting surface may have the shape of a shallow vat being delimited by a marginal bead 16 for preventing the bones from unintentional dropping. The bones may easily manually be mounted on the supporting surface 15 in direction of the arrow 17 ~Figure 4) to the compressing chamber 4. Conveniently, a transition plate 18 surrounding the pressing chamber 4 adjoins the supporting surface 15 and may optionally have upwardly bent edges 19 suiding the bones into the compressing chamber 4. This transltion plate 18 may be provided with a chute 20 at the edge located opposite the supporting :Iu surface 15, said chute allowing the compressed residual mass expelled from the compressing chamber 4 to be removed in direction o~ the arrow 21, for example into a receiving receptacle.
1~ The cross piece 7 forming the abutment is swivellable around a vertical axis 22 constituted by the axis of symmetry of a column 23, on which the cross-piece 7 is supported by means of a bearing 40 to effect a swivelling movement in a horizonta~
plane. A similar column 24 is provided at the other side of the 2U device and has a recess 25 which is, in the active position of the cross-piece 7, accommodated by the free end of this cross-piece 7 which has the shape of a hook 26. This hook 26 is provided with a handle 27 which may simultaneously serve as a locking member for locking the cross-piece 7 in its closing 2~ position shown in full lines in ~igure 4. The cross-piece may be swivelled to one side of this position into the inactive position shown in dashed llnes and be swivelled back out of the latter position. In the closing position, shown in full lines, of the cross-piece 7, the columns 23, 24 absorb the compression pressure 3U during pressing operation and the columns are of correspondingly strong design. For preventing the cross-piece 7 from becoming upwardly forced off the columns 23, 24 under the action o~ the - compression pressure, both columns 23, 24 are provided with enlarged heads 41.
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~:~7~9 ~ ca-tch ring 28 made of synthetic plastics material and con-tacting a perforated plate 29 serves to effect the aforesaid lifting movement or lowering movemen-t of the wall 8 of the compressing chamber 4 and is fixedly connected to the wall 8 or the mantle tube ll, respectively. For this purpose, several clamping pieces 30 are screwed into the perforated plate 29 which ~i pieces 30 are distributed over the circumference of the perforated plate and grip over a flange 31 of the lower front end of the mantle tube ll. The catch ring 28 is completely cut through by a radial slot 32 and both ring ends located one adjacent the other are clamped together by means of a tightening lU screw 33 (Figure 1). By ad~usting this tightness screw 33 it is possible to adjust in the desired manner the frictional force, with the catch ring 28 contacts the wall 34 of the piston. For the purpos~ of facilitating the actuation of the tightening screw 33, this crew is provided with a handle 39 protruding laterally from the mantle tube 11.
Along the outer circumference of the perforated plate 29, there are stationarily.arranged several stop carriers 35, each of which carries two stop members 36, 37 spaced one from the 2U other, as seen in direction of movement of the perforated plate 29, one of said stop members 36 being located above the perforated plate 29, whereas the other of said stop members 37 is located below the perforated plate 29. The distance below each palr of stop members 36, 37 is at least as great as the length of 2~ the stroke of the wall 8 of the compressing chamber 4 and is preferably somewhat greater. These stop members 36, 37 define the limits for the movement of the wall 8.
When operating the device, the cross-piece 7 is, with 3U wall 8 of the compressing chamber 4 completely lowered, swivelled away from the supporting surface 15 and from the transition plate 18, into the inactive position shown in Figure 4 in dashed lines.
Subsequently, the bones 14 to be pressed and having meat adhering thereon can be moved in direction of the arrow 17 (Figure 4) from 3~
~3 the supportlng surface 15 and via the transition plate 18 (Figure 4) into the thus exposed upper opening of the compressing chamber 4, without this operation being hindered by the cross-piece 7.
As soon as the compressing chamber 4 has been sufficiently filled, the cross-piece 7 is swive~led back on the axis 22 to the active position shown in full lines in Figure 4. After locking this position by means of the handle 27, the hydraulic control is actuated, such that the pressing piston 3 is raised in the cylinder 2. Due to the catch ring 28 being frictionary connected with the press piston, the perforated plate 29, the wall 8 of the compressing chamber and the mantle tube 11 are also pulled in the lU upward direction until the upper front end 6 of the wall 8 of the compressing chamber sealingly engages the cross-piece 7. For centering purposes, this cross~piece 7 comprises a unitary protrusion 38 constituting the thrust surface 43 during the pressing operation and having a conical mantle surface 42 which enters the upper end of the compressing chamber 4 in lifting same. As soon as the upper front end 6 of the wall 8 of the compressing chamber sealingly engages the cross~piece 7, the compressing chamber 4 is sealingly closed on top and ~urther 2U upward movement of the wall 8 of the compressing chamber cannot take place, this being prevented by the cross-piece 7 being secured on the columns 23, 24 against movement in an upward direction. When further moving the press piston 3 in the up~ard direction, the catch ring 28 is thus arrested and pressing the openings 9 into the annular space 10 and leaves this space via 2~ the outlets 12. As soon as the bones 14 have sufficiently been compressed, the hydraulic cylinder 2 is controlled so that the press piston 3 is moved downwardly. On beginning this downward movement, the pressing piston 3 pulls the wall 8 of the compressing chamber together with the perforated plate 29 and the 3U mantle tube 11 along with it in downward direction and under the action of the catch ring 28, until the perforated plate 29 hits the lower stop member 37. The press piston 3 is subsequently further slightly retracted, during which movement the wall 8 remains still. Subsequently, the cross-piece 7 can, after having .
.' ' ' ' 97~9 released the lock, agaln be swivelled -to one side into the inactive position shown in dashed lines in Figure 4. Af-ter having finished this opera-tiny step, the press piston 3 is again raised by correspondingly controlling the cylinder 2, noting that the press piston pulls, at the start of this lifting movement, the wall 8 in upward direction until the perforated plate 29 hits the upper stop member 36. As soon as this is the case, the press piston 3 is upwardly mounted relatlve to the wall 8 and moves the residual mass formed o~ compressed bones 14 out through the upper front end 6 of the compressing chamber 4 ln upward direction.
Then this mass is removed via the chute 20. the press piston 3 Lu is then again retracted and pulled with it the wall 8 into th~
lower starting position. As soon as the press piston 3 has arrived at its lowermost pos~tion, the working cycle is completed and the compressing chamber 4 can again be filled with bones to be pressed.
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The invention relates to a machine for severing the mea-t adherin~ to bones from said bones by pressing the bones having meat adhering thereon.
Machines of this type are known, which comprise a compressing chamber having a vertical axis arranged with a frame.
The side wall of this chamber can be raised in sealing engagement with an abutment member. A press piston can be mounted in this chamber from the bottom side and the chamber can be closed at its upper end by the abutment member for the pressing operation, said abutment member being swivellable around a vertical axis between a closing position located above the compressing chamber and a position giving free the compressing chamber. The abutment member is cylindrical at its bottom facing the compressing chamber a protrusion sealingly entering into the compressing chamber from above when the chamber is raised. The wall of the compressing ~hamber has openings for the passage of the meat converted into a pasty position under the compression pressure but is impassable for the bones. A substantially horizontal supporting surEace for the bones to be introduced into the compressing chamber laterally adjoins the upper end of the 2U compressing chamber, and above the compressing chamber, spaced apart therefrom, there is provided a horizon-tal cross-piece, which is anchored on two columns of the frame and which is contacted by the compressing chamber in its closing position and which counteracts the compression pressure during the pressing 2~ operation. By means of such devices, the bones having meat adhering thereon can be pressed with low expenditure for recovering residual meat, which passes through the openings of the wall of the compressing chamber in a pasty condition and is collected, whereas the compressed mass of bones, after finishing_ the pressing operation and after swivelling aside the abutment, is shifted out of thè compressing chamber in upward direction and is removed. In the conventional construction, the abutment member consists of a piece of tube closed on its bottom and forming in its position closing the compressing chamber some sort of extension of the wall of the compressing chamber. In this position the abutment member contacts with its upper end the stationary cross-piece, and this piece and the mentioned both columns transmit the load exer-ted by the compressing pressure into the frame.
The present invention simplifies this device to lower its costs, whilst simultaneously improving the sealing Pffect at the upper front end of the compressing chamber during the pressing operation.
u! Accordiny to the present invention there is provided a ; ~ machine for scrving ~he meat adhering to bones from said bone by pressing the bones, comprising a frame, a compressing chamber having a vertical disposed axis withln the frame and having a side wall, a horizontal cross-piece disposed above the 1~ compressing chamber and including an abutment member which absorbs compressing pressure during a pressing operation, said side wall of said compressing chamber being adapted to be raised in sealing engagement with said abutment member, a press piston adapted to be moved in the compressing chamber and clase the 2U chambers on its bottom, said abutment member being adapted to close the upper end of said compressing chamber dur~ng the pressing operation, said abutment being swivellable around a first vertlcal column between a closing position located above the compresslng chamber and a position giving free access to the 2~ compressing chamber and carrying on the bottom facing the compressing chamber a protrusion sealingly entering from above into the comprsssing chamber when the compressing chamber is lifted into engagement with the abutment member, openings in the wall of the compressing chamber for the passage of a meat 3~ converted into a pasty condition under the action of the compression pressure, said openings being impassable to ths bones, a substantially horizontal supporting surface ~or the bones having me~t adhering thereon to be introduced into the compressing chamber, said supporting surface laterally adjoining the upper end of the compressing chamber, said abutment member being adapted -to be anchored on a further column oE said frame duriny the pressing operation and being combined with he protrusion to a single component part being swivellable around said first vertical column, said protrusion being provided with a conical mantle surface for centering and sealing purposes.
Thus, according to the invention, the abutment member is combined with the cross-piece and with the protrusion to one single component part being swivellable around the vertical axis being formed by said one column, the protrusion being provided lu with a conical mantle surface. While in the conventional construction two component parts being separated one from the other, i.e., the abutment member E~ se and the cross-piece, are required for transmitting the compress~on pressure into the frame, said both component parts are, in the present invention, combined to one signal component part and are swivellable together around the vertical axis. This has a premise that the cross-piece can be loosened from the said one column but can still reliably b~ anchored thereon, in order to be able to transmit the compression pressure into the frame. The invention provides also the advantage that, on account o the simplified construction~ any tolerances are avoided whlch would be critical in the conventional construction at the surface, along which the abutment member engages the cross-plece. Also the operation of the machlne is simplified because the common component part 2~ forming the cross-piece and the abutment member can more easily be handled than the separate abutment member havlng to be moved below the cross-piece in the conventional construction.
Furthermore, the conical protrusion provides an automatic ~ centering means for the abutment member relative to the - 3U compressing chamber when applying the compression pressure, so that an unobjectable seal is obtained at the upper end of the compressing chamber.
According to a preferred embodlment of the invention, ~5 .
the cross-piece can be swivelled in its posi-tion giving free access to the compressing chamber in a direction towards the side located opposite the supporting surface. The cross-piece thus provided no hindrance for filling the compresslng chamber and simultaneously forms a guide means for the compressed residual mass when expelling and removing same.
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According to a further embodiment of the invention, the cross-piece is in ths shape of a hook at its end located opposite the vertical pivotal axis and embraces, in the position absorbing the compression pressure, with this hook in a recess of the other column not forming the swivelling axis. This results in a reliable anchoring of the cross-piece on the column during the pressing operation, so that the load is reliably absorbed. Thus that end of the cross-piece which is located opposite the swivelling axis can be blocked on its column in that position of 1~ the cross-piece in which it absorbed the compression pressure.
For facilitating operation, the cross-piece can be provided with a handle at its end located opposite the swivelling axis.
The present invention will be further illustrated by 2~ way of the accompanying drawings in which:
Figure 1 shows in a side elevation and partially in a section the essentially parts of a machine according to one embodiment of the present invention with the wall of the compressing chamber in its lowered position and with the cross-piece in its closing position;
Figure 2 is a section along the line II-II of Figure 1, soms parts being shown in a broken away condition;
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Figure 3 is a similar v~ew to Figure 1, partially in a section, but with the wall of the compressing chamber lifted against the cross-piece; and 3~
Figure ~ is a plan view the arrangement for the swivelling the cross-piece.
The machine comprises a frame 1 in which a hydraulic cylinder 2 is rigidly fixed. A piston 3 can be moved from this cylinder 2 and introduced into a compressing chamber 4 having a vertical axis 5. The compressing chamber 4 is in the shape of a cyllnder of circular cross section closable at i-ts upper front end 6 by an abutment for the pressing operation in the form of a cross-piece 7. The tubular wall 8 of the compressing chamber 4 has several openings holes or slots 9, through which openings can u flow the meat which has been converted into a pasty condition under the action of the compression pressure. However, these openings 9 cannot be passed by the bones. The wall 8 with its openings 9 thus forms a perforated or slotted filter for separating the meat from the bones. The meat flowing th~ough the openings 9 passed into an annular chamber 10 surroundlng the wall 8 and formed a mantle tube 11. The meat may accumulate in this annular chamber 10 and flow ln outward direction through several radial outlets 12, to which hoses (not shown)-may be connected leading to a collecting vat.
The wall 8 of the compressing chamber 4 is, within limits, vertically displaceable between a lowermost position shown in Figure 1 and an uppermost position shown in Figure 3.
in the lowermost position (Figure 1), the wall 8 is lowered to 2~ such an extent that its upper front end 6 is located at a level lower than the cross-piece 7, l.e. is located at such a distance below the cross-piece 7 that it can be swivelled to one side in direction of the twin arrow 13 (Figure 4), so that it can be moved into a position in which the bones 1~ to pressed (~igure 3) 3U can be introduced from above into the compressing chamber ~. For this purpose, there is conveniently provided a horizontal supporting surface 15 for the bones to be pressed or such a supporting surface which is slightly inclined in direction towards the compressing chamber (Figure 4), while supporting a~
surface ad;oins -the fron-t end 6 of the compressing chamber 4 assuming the aforesaid position. The suppor-ting surface may have the shape of a shallow vat being delimited by a marginal bead 16 for preventing the bones from unintentional dropping. The bones may easily manually be mounted on the supporting surface 15 in direction of the arrow 17 ~Figure 4) to the compressing chamber 4. Conveniently, a transition plate 18 surrounding the pressing chamber 4 adjoins the supporting surface 15 and may optionally have upwardly bent edges 19 suiding the bones into the compressing chamber 4. This transltion plate 18 may be provided with a chute 20 at the edge located opposite the supporting :Iu surface 15, said chute allowing the compressed residual mass expelled from the compressing chamber 4 to be removed in direction o~ the arrow 21, for example into a receiving receptacle.
1~ The cross piece 7 forming the abutment is swivellable around a vertical axis 22 constituted by the axis of symmetry of a column 23, on which the cross-piece 7 is supported by means of a bearing 40 to effect a swivelling movement in a horizonta~
plane. A similar column 24 is provided at the other side of the 2U device and has a recess 25 which is, in the active position of the cross-piece 7, accommodated by the free end of this cross-piece 7 which has the shape of a hook 26. This hook 26 is provided with a handle 27 which may simultaneously serve as a locking member for locking the cross-piece 7 in its closing 2~ position shown in full lines in ~igure 4. The cross-piece may be swivelled to one side of this position into the inactive position shown in dashed llnes and be swivelled back out of the latter position. In the closing position, shown in full lines, of the cross-piece 7, the columns 23, 24 absorb the compression pressure 3U during pressing operation and the columns are of correspondingly strong design. For preventing the cross-piece 7 from becoming upwardly forced off the columns 23, 24 under the action o~ the - compression pressure, both columns 23, 24 are provided with enlarged heads 41.
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~:~7~9 ~ ca-tch ring 28 made of synthetic plastics material and con-tacting a perforated plate 29 serves to effect the aforesaid lifting movement or lowering movemen-t of the wall 8 of the compressing chamber 4 and is fixedly connected to the wall 8 or the mantle tube ll, respectively. For this purpose, several clamping pieces 30 are screwed into the perforated plate 29 which ~i pieces 30 are distributed over the circumference of the perforated plate and grip over a flange 31 of the lower front end of the mantle tube ll. The catch ring 28 is completely cut through by a radial slot 32 and both ring ends located one adjacent the other are clamped together by means of a tightening lU screw 33 (Figure 1). By ad~usting this tightness screw 33 it is possible to adjust in the desired manner the frictional force, with the catch ring 28 contacts the wall 34 of the piston. For the purpos~ of facilitating the actuation of the tightening screw 33, this crew is provided with a handle 39 protruding laterally from the mantle tube 11.
Along the outer circumference of the perforated plate 29, there are stationarily.arranged several stop carriers 35, each of which carries two stop members 36, 37 spaced one from the 2U other, as seen in direction of movement of the perforated plate 29, one of said stop members 36 being located above the perforated plate 29, whereas the other of said stop members 37 is located below the perforated plate 29. The distance below each palr of stop members 36, 37 is at least as great as the length of 2~ the stroke of the wall 8 of the compressing chamber 4 and is preferably somewhat greater. These stop members 36, 37 define the limits for the movement of the wall 8.
When operating the device, the cross-piece 7 is, with 3U wall 8 of the compressing chamber 4 completely lowered, swivelled away from the supporting surface 15 and from the transition plate 18, into the inactive position shown in Figure 4 in dashed lines.
Subsequently, the bones 14 to be pressed and having meat adhering thereon can be moved in direction of the arrow 17 (Figure 4) from 3~
~3 the supportlng surface 15 and via the transition plate 18 (Figure 4) into the thus exposed upper opening of the compressing chamber 4, without this operation being hindered by the cross-piece 7.
As soon as the compressing chamber 4 has been sufficiently filled, the cross-piece 7 is swive~led back on the axis 22 to the active position shown in full lines in Figure 4. After locking this position by means of the handle 27, the hydraulic control is actuated, such that the pressing piston 3 is raised in the cylinder 2. Due to the catch ring 28 being frictionary connected with the press piston, the perforated plate 29, the wall 8 of the compressing chamber and the mantle tube 11 are also pulled in the lU upward direction until the upper front end 6 of the wall 8 of the compressing chamber sealingly engages the cross-piece 7. For centering purposes, this cross~piece 7 comprises a unitary protrusion 38 constituting the thrust surface 43 during the pressing operation and having a conical mantle surface 42 which enters the upper end of the compressing chamber 4 in lifting same. As soon as the upper front end 6 of the wall 8 of the compressing chamber sealingly engages the cross~piece 7, the compressing chamber 4 is sealingly closed on top and ~urther 2U upward movement of the wall 8 of the compressing chamber cannot take place, this being prevented by the cross-piece 7 being secured on the columns 23, 24 against movement in an upward direction. When further moving the press piston 3 in the up~ard direction, the catch ring 28 is thus arrested and pressing the openings 9 into the annular space 10 and leaves this space via 2~ the outlets 12. As soon as the bones 14 have sufficiently been compressed, the hydraulic cylinder 2 is controlled so that the press piston 3 is moved downwardly. On beginning this downward movement, the pressing piston 3 pulls the wall 8 of the compressing chamber together with the perforated plate 29 and the 3U mantle tube 11 along with it in downward direction and under the action of the catch ring 28, until the perforated plate 29 hits the lower stop member 37. The press piston 3 is subsequently further slightly retracted, during which movement the wall 8 remains still. Subsequently, the cross-piece 7 can, after having .
.' ' ' ' 97~9 released the lock, agaln be swivelled -to one side into the inactive position shown in dashed lines in Figure 4. Af-ter having finished this opera-tiny step, the press piston 3 is again raised by correspondingly controlling the cylinder 2, noting that the press piston pulls, at the start of this lifting movement, the wall 8 in upward direction until the perforated plate 29 hits the upper stop member 36. As soon as this is the case, the press piston 3 is upwardly mounted relatlve to the wall 8 and moves the residual mass formed o~ compressed bones 14 out through the upper front end 6 of the compressing chamber 4 ln upward direction.
Then this mass is removed via the chute 20. the press piston 3 Lu is then again retracted and pulled with it the wall 8 into th~
lower starting position. As soon as the press piston 3 has arrived at its lowermost pos~tion, the working cycle is completed and the compressing chamber 4 can again be filled with bones to be pressed.
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Claims (3)
1. A machine for severing the meat adhering to bones from said bone by pressing the bones, comprising a frame, a compressing chamber having a vertical disposed axis within the frame and having a side wall, a horizontal cross-piece disposed above the compressing chamber and including an abutment member which absorbs compressing pressure during a pressing operation, said side wall of said compressing chamber being adapted to be raised in sealing engagement with said abutment member, a press piston adapted to be moved in the compressing chamber and close the chambers on its bottom, said abutment member being adapted to close the upper end of said compressing chamber during the pressing operation, said abutment being swivellable around a first vertical column between a closing position located above the compressing chamber and a position giving free access to the compressing chamber and carrying on the bottom facing the compressing chamber a protrusion sealingly entering from above into the compressing chamber when the compressing chamber is lifted into engagement with the abutment member, openings in the wall of the compressing chamber for the passage of a meat converted into a pasty condition under the action of the compression pressure, said openings being impassable -to the bones, a substantially horizontal supporting surface for the bones having meat adhering thereon to be introduced into the compressing chamber, said supporting surface laterally adjoining the upper end of the compressing chamber, said abutment member being adapted to be anchored on a further column of said frame during the pressing operation and being combined with the protrusion to a single component part being swivellable around said first vertical column, said protrusion being provided with a conical mantle surface for centering and sealing purposes.
2. A machine as claimed in claim 1, wherein said cross-piece is adapted to be swivelled into its position giving free access to the compressing chamber in a direction towards that side located opposite said supporting surface.
3. A machine as claimed in claim 1, wherein said cross-piece is in the shape of a hook at its end located opposite said first vertical column, said hook embracing a recess on said further column in the position of the cross-piece absorbing the compressing pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000555718A CA1279789C (en) | 1987-01-02 | 1987-12-31 | Machine for severing the meat adhering to the bone |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA4/87 | 1987-01-02 | ||
| CA000555718A CA1279789C (en) | 1987-01-02 | 1987-12-31 | Machine for severing the meat adhering to the bone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1279789C true CA1279789C (en) | 1991-02-05 |
Family
ID=4137182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000555718A Expired - Lifetime CA1279789C (en) | 1987-01-02 | 1987-12-31 | Machine for severing the meat adhering to the bone |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1279789C (en) |
-
1987
- 1987-12-31 CA CA000555718A patent/CA1279789C/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |