CA1128719A - Method and apparatus for processing fish in the region of their gill cavities - Google Patents
Method and apparatus for processing fish in the region of their gill cavitiesInfo
- Publication number
- CA1128719A CA1128719A CA345,674A CA345674A CA1128719A CA 1128719 A CA1128719 A CA 1128719A CA 345674 A CA345674 A CA 345674A CA 1128719 A CA1128719 A CA 1128719A
- Authority
- CA
- Canada
- Prior art keywords
- fish
- spike
- gill
- gulletting
- loading arm
- 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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A22—BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH
- A22C—PROCESSING MEAT, POULTRY, OR FISH
- A22C25/00—Processing fish ; Curing of fish; Stunning of fish by electric current; Investigating fish by optical means
- A22C25/08—Holding, guiding, or conveying fish before, during or after its preparation ; Devices for sizing fish; Automatically adapting conveyors or processing machines to the measured size
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Processing Of Meat And Fish (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE:
A method and an apparatus for processing fish in the region of their gill cavities, commonly also called throating or gulletting, is described. An unthroated fish is pushed onto a spike - shaped gulletting tool arranged above and transverse to a fish conveying path, whereby the skin ex-tending between the last gill arches and the collar bones is pierced. The gulletting tool is provided on its upper side with a cutting edge and associated with a downwardly movable loading arm situated in its rest position approximately parallel to the spike and having a free end which is situated in the vicinity of the lower edge of the gulletting tool.
Upon completion of the piercing action, the fish moved downwardly in the conveyor path by engagement with the gill cavity side of its back bone by the loading arm, and the skin and the isthmus of the fish are severed. The fish may then be processed furhter, e.g. fed to a filletting machine.
A method and an apparatus for processing fish in the region of their gill cavities, commonly also called throating or gulletting, is described. An unthroated fish is pushed onto a spike - shaped gulletting tool arranged above and transverse to a fish conveying path, whereby the skin ex-tending between the last gill arches and the collar bones is pierced. The gulletting tool is provided on its upper side with a cutting edge and associated with a downwardly movable loading arm situated in its rest position approximately parallel to the spike and having a free end which is situated in the vicinity of the lower edge of the gulletting tool.
Upon completion of the piercing action, the fish moved downwardly in the conveyor path by engagement with the gill cavity side of its back bone by the loading arm, and the skin and the isthmus of the fish are severed. The fish may then be processed furhter, e.g. fed to a filletting machine.
Description
B~CKGROUi~D OF TML I~IV:EL~iTIO,~
1. Field of the Invention The invention relates to a me-tl1od anci an aP~aratus for processing Eish in the re~ioll of their ~ill cavikies, commonly also called throating or cJullctincl, antl feeclln-~
them into ~he conveyor pa-th of a quttit1~JIn~c~ e :eor Eish.
1. Field of the Invention The invention relates to a me-tl1od anci an aP~aratus for processing Eish in the re~ioll of their ~ill cavikies, commonly also called throating or cJullctincl, antl feeclln-~
them into ~he conveyor pa-th of a quttit1~JIn~c~ e :eor Eish.
2. Descri~-tion of Prior Art By DE-PS I 219 356 there is disclosed a process and an apparatus for throating unslaughtered white fish and the like on board catcher or factory ships, in which the skin extencling between the last gill arches and the collar bones is pierced below the qullet and severed from the en-try poin-t along the collar bones/ by leng-thening this cutting line -the connection between the collar bones and the lower jaw, i.e~ the isthmus is cut throuyh and the gullet is severed with an opposed cut extending to the spine. This is efEected in that the fish is pushed onto the point of a cantilevered spilce on its back, aEter be-ing spiked is pushed in a hanging position alon~ the spike over a throatin~ knife lying adjacent the spike, which knife ef:Eects the severing of the skin and the isthmus. The fish is preventèd from Ealling down from -the spike by a pressure member lying adjacent the neck of the fish. Subsequently the Eish is conveyed to a circular knife whose cuttiny edge is adjacent the spike, which severes its gullet.
With the aid o the known method large to meclium sized , ~
.. .
:
, '' ;' ~ : . ~
~1~87~g Eish can be throated without problem, but automatically feeding the thxoated fish into a gutting machine is no-t possible with an apparatus working in accordance wi~h this process. This ls, however, a requirement when processing smaller fish which must be trea~ed at a high rate for reasons of economy.
î OBJECT OF THE INVENTlON
It is a main ob~ect of the present invention to bring unthroated fish into their loading position over the 10 conveyor path of a gutting machine and to feed them opened in the region of their gills from this loading position into the conveyor path.
BRIEF SUMMARY OF THE INVENTION
According to the present invention, there is provided a method or processing of fish in the region of their gill cavities and eeding them into a conveyor path of a gutting machine, wherein each fish is pushed onto a spike to a position above the fish conveyor path piercing the skin extending between the last gill arches and the collar bones 20 and is then moved downwardly in the conveyor path by engagement with the gill cavity side o its back bone whilst the skin and the isthmus of the fish are severed.
The advantages which may be thereby achieved reside particularly in the fact that the working steps o throating and feeding into a gutting machine can occur in an enforced sequence so that a further handling of the fish to load the gutting machine is not necessary.
,0 .:
7~
To achieve the abo~e object in accordance with the present invention there is also provided for a gut-ting ap-paratus having a conveying path for the fish and engaging members movable along it for the conveyin~ engagement with the head ends of the fish, wherein a gulletting tool is flxedly arranged above and transverse to the conveying path for the fish, the gulletting tool having a cantilevered spike which is provided at its end with a point and on its upper side with a cutting edge and being associated with a loader which comprises a downwardly movable loading arm situated in its rest position approximately parallel to the spike and at least the free end of which is situated in the vicini~y of the lower edge of the spike.
Thus an apparatus is provided which enables the process of this invention to be effectively carried out and which may be constructed at modest e~pense.
Preferably, the loader is provided with means by which its loading arm is moved downwardly in synchronism with the passage of the engaging members of the conveyor.
Thus it is possible to carry out the processing resp. throating step simultaneously with the loading step.
The loading arm may have on its underside a recess lying in the middle of the conveying path. Thereby a reliable alignment on the middle of the conveying path is ensured in a simpel manner.
The recess on the underside of the loading arm may be formed as a cutting edge~ Thereby simultaneously with the throating operation the gullet of the fish may be cut through if this should be below the spike.
In order to assist the alignement of the fish in the middle of the conveyor path, the cutting edge of the spike may have a notch in the form of a recess o~er the middle 1~;287~L~
~, .
of the conveying path.
Preferably the spike is upwardly offset on its underside in the reyion of its point. This facilitates the spiklng of the fish because the polnt of the loadlng arm is hidden behind this shoulder.
Expedlently a neck rest may be flxedly positioned beneath the point of the spike on which the back side of the fish may rest. This enables each fish to be brought into the most favourable position for spiking.
The neck rest may be arranged so that its spacing from the conveying path is adjustable. This provides the possibility, if the fish are of a suitable size, of spiking several fish on the spike at a tlme, in each case one of which is positioned in the loading position above the middle of the conveyor path.
BRIEF DESCRIPTION OF Tll~ DRAWINGS
Other and further objects of the Present invention will be apparent from the followin~ description ancl clairns and are illustrated in the accompanying drawings, which, hy way of illustratio31, show preferred embodiments of -the pr~sent invention and the princlples thereof and ~Ih~ now are considered to be the bes-t mode~ contemplated Eor applyin~.
these principlcs. The drawinc~ shows an axonometrlc view of the loading end of a gu-tting machine for fish with a device in accordance with the invention for throa-ting and feeding.
DETAILED DESCRIPTION OF A PREFFERED ~MBODIMENT
Guide and drive wheels which are not shown, of an end-less conveyor 4 are arranged on a machine frame, which is also not shown, and are driven in a suitable manner in the transfer direction 3 ~see arrow). The conveyor 4 carries conveying members 5 arranyed a-t a fixed distance apart which are in the position to move fish in the transfer direction 3 against tools which are not shown of a gut-ting machine along the conveying path 2 above the con-veyor 4 with their backs downwards and their tail ends in the transfer direction 3 by enga~ing their head ends.
projecting portion of a throating tool 6 is secured to the machine frame laterally of the conveying path above the loading end of the guttin~ machine, the horizontal portion of which tool 6 comprises a spike 7 extending in cantilever fashion over the conveying path 2 to the part of the ~utting machine situated on the other side of the conveying path 2. At its free end the spi]ce ~ has a point ~ 8 and its ur~per side is f~rmed as a cutting ~lade 9, :
whic}l in the midclle of -the conveyinrJ patl1 2 has a notcl-10 in the Eorm oE a recess wlllch is also :Eorr.^.e~ as a cuttincJ blade.
Upstream oE the throa-t.incJ tool 6, seen ln transfer cllrec tion 3, a moUntin~J 12 of a loacler 11 is secure~ to t]l~J
machine frame, also la-terally. l'ilis loader 11 rc"~!~rises a rockin~ lever 13 which in the res t rpos tiOI1 of tl~e .loader 11 rises up to~ards the spike 7 and wl1icl1 at its upper end carries a loaclinc3 arm l ~ whicll lies ac~ains t the un-derside of the spike 7. In order t:o ensure an undisturbed loadin~ of tl1e fish on-to the spi]ce 7 the la-t-ter is provided on its lower side with a recess or led~Je 15 behirld which the free end of the loadinc~ arm 14 is located when in i ts rest position. To pivot the loadincJ arm 1~ down~ards the loader 11 can be provided with a roller lever (not desic3nated~ which is not shown and which is operable by a cam (also no-t desi~nated) rotatin~l in syncllronism with the conveyor 4.
:
The operation of the device is as EO11O~JS:
A fish with its tail- extendinc~ in the transfer direction
With the aid o the known method large to meclium sized , ~
.. .
:
, '' ;' ~ : . ~
~1~87~g Eish can be throated without problem, but automatically feeding the thxoated fish into a gutting machine is no-t possible with an apparatus working in accordance wi~h this process. This ls, however, a requirement when processing smaller fish which must be trea~ed at a high rate for reasons of economy.
î OBJECT OF THE INVENTlON
It is a main ob~ect of the present invention to bring unthroated fish into their loading position over the 10 conveyor path of a gutting machine and to feed them opened in the region of their gills from this loading position into the conveyor path.
BRIEF SUMMARY OF THE INVENTION
According to the present invention, there is provided a method or processing of fish in the region of their gill cavities and eeding them into a conveyor path of a gutting machine, wherein each fish is pushed onto a spike to a position above the fish conveyor path piercing the skin extending between the last gill arches and the collar bones 20 and is then moved downwardly in the conveyor path by engagement with the gill cavity side o its back bone whilst the skin and the isthmus of the fish are severed.
The advantages which may be thereby achieved reside particularly in the fact that the working steps o throating and feeding into a gutting machine can occur in an enforced sequence so that a further handling of the fish to load the gutting machine is not necessary.
,0 .:
7~
To achieve the abo~e object in accordance with the present invention there is also provided for a gut-ting ap-paratus having a conveying path for the fish and engaging members movable along it for the conveyin~ engagement with the head ends of the fish, wherein a gulletting tool is flxedly arranged above and transverse to the conveying path for the fish, the gulletting tool having a cantilevered spike which is provided at its end with a point and on its upper side with a cutting edge and being associated with a loader which comprises a downwardly movable loading arm situated in its rest position approximately parallel to the spike and at least the free end of which is situated in the vicini~y of the lower edge of the spike.
Thus an apparatus is provided which enables the process of this invention to be effectively carried out and which may be constructed at modest e~pense.
Preferably, the loader is provided with means by which its loading arm is moved downwardly in synchronism with the passage of the engaging members of the conveyor.
Thus it is possible to carry out the processing resp. throating step simultaneously with the loading step.
The loading arm may have on its underside a recess lying in the middle of the conveying path. Thereby a reliable alignment on the middle of the conveying path is ensured in a simpel manner.
The recess on the underside of the loading arm may be formed as a cutting edge~ Thereby simultaneously with the throating operation the gullet of the fish may be cut through if this should be below the spike.
In order to assist the alignement of the fish in the middle of the conveyor path, the cutting edge of the spike may have a notch in the form of a recess o~er the middle 1~;287~L~
~, .
of the conveying path.
Preferably the spike is upwardly offset on its underside in the reyion of its point. This facilitates the spiklng of the fish because the polnt of the loadlng arm is hidden behind this shoulder.
Expedlently a neck rest may be flxedly positioned beneath the point of the spike on which the back side of the fish may rest. This enables each fish to be brought into the most favourable position for spiking.
The neck rest may be arranged so that its spacing from the conveying path is adjustable. This provides the possibility, if the fish are of a suitable size, of spiking several fish on the spike at a tlme, in each case one of which is positioned in the loading position above the middle of the conveyor path.
BRIEF DESCRIPTION OF Tll~ DRAWINGS
Other and further objects of the Present invention will be apparent from the followin~ description ancl clairns and are illustrated in the accompanying drawings, which, hy way of illustratio31, show preferred embodiments of -the pr~sent invention and the princlples thereof and ~Ih~ now are considered to be the bes-t mode~ contemplated Eor applyin~.
these principlcs. The drawinc~ shows an axonometrlc view of the loading end of a gu-tting machine for fish with a device in accordance with the invention for throa-ting and feeding.
DETAILED DESCRIPTION OF A PREFFERED ~MBODIMENT
Guide and drive wheels which are not shown, of an end-less conveyor 4 are arranged on a machine frame, which is also not shown, and are driven in a suitable manner in the transfer direction 3 ~see arrow). The conveyor 4 carries conveying members 5 arranyed a-t a fixed distance apart which are in the position to move fish in the transfer direction 3 against tools which are not shown of a gut-ting machine along the conveying path 2 above the con-veyor 4 with their backs downwards and their tail ends in the transfer direction 3 by enga~ing their head ends.
projecting portion of a throating tool 6 is secured to the machine frame laterally of the conveying path above the loading end of the guttin~ machine, the horizontal portion of which tool 6 comprises a spike 7 extending in cantilever fashion over the conveying path 2 to the part of the ~utting machine situated on the other side of the conveying path 2. At its free end the spi]ce ~ has a point ~ 8 and its ur~per side is f~rmed as a cutting ~lade 9, :
whic}l in the midclle of -the conveyinrJ patl1 2 has a notcl-10 in the Eorm oE a recess wlllch is also :Eorr.^.e~ as a cuttincJ blade.
Upstream oE the throa-t.incJ tool 6, seen ln transfer cllrec tion 3, a moUntin~J 12 of a loacler 11 is secure~ to t]l~J
machine frame, also la-terally. l'ilis loader 11 rc"~!~rises a rockin~ lever 13 which in the res t rpos tiOI1 of tl~e .loader 11 rises up to~ards the spike 7 and wl1icl1 at its upper end carries a loaclinc3 arm l ~ whicll lies ac~ains t the un-derside of the spike 7. In order t:o ensure an undisturbed loadin~ of tl1e fish on-to the spi]ce 7 the la-t-ter is provided on its lower side with a recess or led~Je 15 behirld which the free end of the loadinc~ arm 14 is located when in i ts rest position. To pivot the loadincJ arm 1~ down~ards the loader 11 can be provided with a roller lever (not desic3nated~ which is not shown and which is operable by a cam (also no-t desi~nated) rotatin~l in syncllronism with the conveyor 4.
:
The operation of the device is as EO11O~JS:
A fish with its tail- extendinc~ in the transfer direction
3 is pushed onto the point ~ of the spilce 7 with its necl;
lyin~ on the neck rest 1~3 immediate Ly ad jacerlt tl-le coll ar bone on its gill cavity side, the sPike 7 penetratin~ -tl1e skin extending between the last ~ill arcs an~1 the collar bones . When the loadinc~ arm 14 is si tuated in i ts upr)er -~ posi-tion, i . e . the rest position, lyinc~ acrainst the ~ b ~ 817~
unclerside of the sp.ike 7, -the fiSIl iS puslled Eurtiler onto the spilce 7 un-til its plane of symmetry is positioned over the cent.re of the convey.inq path 2. ~1hen ~ conveyinc~
member 5 arrives -the loacler 11 is pivoted downwar-~ly in a clock~rise clirection ~y means of t}le men-tioned synchronlsm via the cam and the roller lever and the reces~ 17 in i-ts loading arm 1~ comes to bear aqainst the gill cav.Lty s.ide of the bac]c bone. On further pivotal movement ~lle loading arm 14 draws -the fish downwards and thereby first severs the skin along the collar bones and then also the isthmus of -the fisll which is centred in the notch 10 of the spikc 7. Whilst the fish now comes to rest in the conveying path 2 on the conveyor ~ the loading arm 14 is pivoted back to its rest position in an accelerated manner by rotation in an anti-clockwise direction. ~hen the cfullet of the fish comes to lie belowe the spike 7 whilst bein~
pushed on-to it i-t is severed by -the cutting edge of the recess 17 of the loadin~ arm 14. Durinq the processing resp. throating and loading process a ne~ fish can he pushed onto the spike 7 if the leng-th of the latter is of a suEficien-t extension.
Other embodiments of the invention embodying the same or equivalellt principles may be used and structural chanyes may be made as desired by those skilled in the art without departing from the presellt invelltion ancl the scope of the appended claims.
, ' '
lyin~ on the neck rest 1~3 immediate Ly ad jacerlt tl-le coll ar bone on its gill cavity side, the sPike 7 penetratin~ -tl1e skin extending between the last ~ill arcs an~1 the collar bones . When the loadinc~ arm 14 is si tuated in i ts upr)er -~ posi-tion, i . e . the rest position, lyinc~ acrainst the ~ b ~ 817~
unclerside of the sp.ike 7, -the fiSIl iS puslled Eurtiler onto the spilce 7 un-til its plane of symmetry is positioned over the cent.re of the convey.inq path 2. ~1hen ~ conveyinc~
member 5 arrives -the loacler 11 is pivoted downwar-~ly in a clock~rise clirection ~y means of t}le men-tioned synchronlsm via the cam and the roller lever and the reces~ 17 in i-ts loading arm 1~ comes to bear aqainst the gill cav.Lty s.ide of the bac]c bone. On further pivotal movement ~lle loading arm 14 draws -the fish downwards and thereby first severs the skin along the collar bones and then also the isthmus of -the fisll which is centred in the notch 10 of the spikc 7. Whilst the fish now comes to rest in the conveying path 2 on the conveyor ~ the loading arm 14 is pivoted back to its rest position in an accelerated manner by rotation in an anti-clockwise direction. ~hen the cfullet of the fish comes to lie belowe the spike 7 whilst bein~
pushed on-to it i-t is severed by -the cutting edge of the recess 17 of the loadin~ arm 14. Durinq the processing resp. throating and loading process a ne~ fish can he pushed onto the spike 7 if the leng-th of the latter is of a suEficien-t extension.
Other embodiments of the invention embodying the same or equivalellt principles may be used and structural chanyes may be made as desired by those skilled in the art without departing from the presellt invelltion ancl the scope of the appended claims.
, ' '
Claims (10)
1. Method for processing of fish in the region of their gill cavities and feeding them into a conveyor path of a gutting machine, wherein each fish is pushed onto a spike to a position above the fish conveyor path piercing the skin extending between the last gill arches and the collar bones and is then moved downwardly in the conveyor path by engagement with the gill cavity side of its back bone whilst the skin and the isthmus of the fish are severed.
2. Apparatus for processing of fish in the region of their gill cavities and feeding them into a conveyor path of a gutting machine, said apparatus having a conveying path for the fish and engaging members movable along it for the conveying engagement with the head ends of the fish, wherein a gulletting tool is fixedly arranged above and transverse to said conveying path, said gulletting tool having a cantilevered spike which is provided at its end with a point and on its upper side a cutting edge and being associated with a loader which comprises a downwardly movable loading arm situated in its rest position approximately parallel to the spike and at least the free end of which is situated in the vicinity of the lower edge of said spike.
3. Apparatus according to claim 2, wherein said loader is provided with means by which its loading arm is moved downwardly in synchronism with the passage of said engaging members of said conveyor.
4. Apparatus according to claim 2, wherein said loading arm has on its underside a recess lying in the middle of said conveying path.
5. Apparatus according to claim 4, wherein said recess on the underside of said loading arm is formed as a cutting edge.
6. Apparatus according to claim 2, wherein said cutting edge of said spike has a notch in the form of a recess over the middle of said conveying path.
7. Apparatus according to claim 2, wherein said spike is upwardly offset on its underside in the region of its point.
8. Apparatus according to claim 2, wherein a neck rest is fixedly positioned beneath said point of the spike on which the back side of the fish may rest.
9. Apparatus according to claim 8, wherein said neck rest is arranged so that its spacing from the conveyor path is adjustable.
10. Apparatus according to claim 3, wherein said means are pivoting means.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2932128A DE2932128C2 (en) | 1979-08-08 | 1979-08-08 | Method and device for throating and introducing fish into a fish eviscerating machine |
| DE2932128.6 | 1979-08-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1128719A true CA1128719A (en) | 1982-08-03 |
Family
ID=6077929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA345,674A Expired CA1128719A (en) | 1979-08-08 | 1980-02-14 | Method and apparatus for processing fish in the region of their gill cavities |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA1128719A (en) |
| DE (1) | DE2932128C2 (en) |
| DK (1) | DK65080A (en) |
| SE (1) | SE420156B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899422A (en) * | 1988-10-28 | 1990-02-13 | King James J | Fish processing machine with automatic length responsive cutting control mechanism |
-
1979
- 1979-08-08 DE DE2932128A patent/DE2932128C2/en not_active Expired
- 1979-09-19 SE SE7907756A patent/SE420156B/en unknown
-
1980
- 1980-02-14 CA CA345,674A patent/CA1128719A/en not_active Expired
- 1980-02-15 DK DK65080A patent/DK65080A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899422A (en) * | 1988-10-28 | 1990-02-13 | King James J | Fish processing machine with automatic length responsive cutting control mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| DK65080A (en) | 1981-02-09 |
| DE2932128B1 (en) | 1980-05-29 |
| SE420156B (en) | 1981-09-21 |
| SE7907756L (en) | 1981-02-09 |
| DE2932128C2 (en) | 1981-02-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |