JPH0144294B2 - - Google Patents

Description

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a finishing spray accessory that is particularly useful for incorporation into bull ring type fish gutting machines.

BACKGROUND OF THE INVENTION Fish eviscerators have been used for many years, particularly for removing the viscera of salmon for canning. Early patents for machines of this type include Smith US Pat. No. 998,199 (July 18, 1911) and Smith US Pat. No. 1034525 (August 6, 1912). This type of machine removed the entrails from decapitated salmon and saved a lot of manual labor. However, this type of machine does not completely clean the cavity of the fish, thus improving the evisceration operation of this type of machine, thereby making it necessary following the processing of the machine to finish the fish in preparation for canning. Various means have been used to reduce the amount of manual labor involved.

Suggestions have been made to flush the abdominal cavity of the fish in conjunction with scraping off the fish's viscera to aid in the removal of the viscera. U.S. Patent No. 2054576 (September 15, 1936)
The specification for a bullwheel-type evisceration machine utilizes herringbone-type rubber ribs with several rows of water jet openings between them.
A composite slip-sleeping rib and water jet ring is disclosed. This type of opening assisted the rubber ribs to emit a jet of water substantially vertically onto the surface of the abdominal cavity of the fish to displace and remove the viscera.

Taus' later U.S. Patent No. 2,536,826 (1951)
(January 2, 2013) describes an accessory for a bull ring type fish evisceration machine incorporating scraper plates having a contour that approximately conforms to the abdominal cavity of the fish, one or more of said scraper plates being , an auxiliary machine is described which carries a central nozzle oriented perpendicularly to the surface of the abdominal cavity of the fish so as to eject a jet of water into the abdominal cavity of the fish when the abdominal cavity is positively acted upon by said scraper plate itself. There is. It has been stated that such jets of water are extremely effective in removing clotted blood from fish backgrounds.

Later bullring-type fish eviscerators, such as those described in U.S. Pat. No. 3,456,287 (July 22, 1969) to Oates et al. A sequential series of rotating brushes is provided to brush the abdominal wall of the fish after it has been scraped by the rotating scraper.

SUMMARY OF THE INVENTION The use of a bull ring type eviscerator reduces or eliminates subsequent manual effort for complete removal of viscera to more completely clean the abdominal cavity of a fish than has been previously possible. is one object of the present invention.

In particular, it is an objective to utilize water spray to provide a finishing step to mechanical fish evisceration operations.

One object of the present invention is to provide a water spray finishing step to fish evisceration operations, and to utilize the water spray effectively for finishing cleaning without significantly eroding or abrading the delicate flesh of the abdominal cavity of the fish. It is.

Other objectives are the proximity and orientation of the spray with respect to the abdominal wall of the fish, and also the spray so that the finishing spray can be easily adapted to provide favorable operation with respect to each size, type and condition of the fish being treated. It is an object of the present invention to provide a finishing spray device for a fish eviscerating machine whose volume and force are adjustable.

The above objects can be achieved by providing a central spray associated with a rotating brush and a group of sprays that are successively directed onto the surface of the abdominal cavity of the fish to provide a final flushing and rinsing action. .

DETAILED DESCRIPTION The Bullring type fish eviscerator, shown in its entirety in Figure 1, is a U.S. Patent No.
It is of the type described in the specification of No. 3456287. Therefore, reference should be made to the above-mentioned patent specification for a detailed description of the structure and operation of this fish eviscerator. The present invention relates to a finishing auxiliary machine for a fish gut removal machine of this type. This kind of machine has a pre-decapitated bull ring 2 of the fish evisceration machine which is rotated by a ring gear 3 driven by a hydraulic motor (not shown) which is supplied with hydraulic fluid by a pump 4. It is fixed and operates to remove the entrails from fish, especially salmon. As shown in FIG. 1, the bull ring is rotated clockwise and the fish is fixed on the bull ring with its abdomen outward so that the fish moves tail first.

After the tail and fins are separated, the abdomen is cut open and the viscera scraped out, the abdominal cavity is brushed with two successive rotating brushes. 1st
The upper brush 5 is pivotally supported between the lower ends of hanging arms 6 rotatably mounted on a trunnion shaft 7. A second or lower rotating brush 8 is rotatably mounted on a shaft 9 which is journalled in the lower end of a depending arm 10, and the upper end of said depending arm is journalled in a shaft 11.

By rotating the bull ring 2 by means of a hydraulic motor 4, the speed of this bull ring is adjusted as desired to keep pace with the canning line fed by the fish evisceration machine with cleaned fish. Can be done. and rotating the brushes 5 and 8 at a speed that is balanced with the rotation of said bull ring and that achieves the most satisfactory evisceration operation taking into account the rotation speed of the bull ring and the state of freshness of the fish. The rotary brushes 5 and 8 are rotated by a hydraulic motor (not shown) whose speed can be adjusted accordingly. The elasticity of a fish's flesh decreases with the time that elapses between the time it is caught and the time it is gutted. The less elastic the meat is, the more easily the meat is eroded and abraded by the rotating brush.

Not only can the rotational speed of the brushes 5 and 8 be adjusted, but also the pivoting position of the brush support arms 6 and 10 can be adjusted with said bushes in order to suit not only different freshness but also different sizes of fish. Can be modified to vary the spacing between the bull rings. The fish eviscerator described above, including the rotating brushes and speed and proximity to the bull ring, is not part of the present invention and has been used previously and is described in U.S. Pat.
It is described in the specification of No. 3456287.

The finishing spray auxiliary machine according to the present invention has a second
a spray nozzle 12 carried by a support mechanism for a rotating brush 8 of 3 and a spray nozzle 12 carried by a support mechanism for a rotating brush 8 of 3 and and one group of sprays. This group of sprays consists of two nozzles 13 arranged next to each other to direct the abrasive spray towards the approaching fish, and a third nozzle arranged next to each other to direct the abrasive spray towards the approaching fish, and a third nozzle 13 for ejecting a final wide-angle abrasive spray onto the fish. a third nozzle 14 on the rear side of the two side-by-side nozzles in the direction of rotation of the ring;
Contains. The three nozzles of the first group are supported by the same mounting mechanism.

A special water supply source is a storage tank 16, illustrated in FIG. 1, whose water level is regulated by a conventional float control valve.
Provision is made to supply water to the four nozzles through conduits 15 from the four nozzles. Water is pumped from said reservoir by a variable speed hydraulic motor 19 through an outlet conduit 18 by a pump 17 . Hydraulic fluid for driving the motor is supplied by a hydraulic pump 20 which obtains hydraulic fluid from a reservoir 22 through a conduit 21. Hydraulic fluid is delivered from pump 20 to motor 19 through supply and return conduits 23. Hydraulic pump 20 is driven by electric motor 24. The speed of the hydraulic motor 19 is the same as that of the pump 17.
The amount of water discharged into the outlet conduit 18 can be varied to adjust.

Water outlet inlet 18 and water supply conduit 15 are connected to a pressure regulator 25 that can be adjusted to control the pressure of water flowing through water supply conduit 15 for any volume of water. A pressure gauge 26 mounted on this pressure regulator indicates the discharge pressure of water to the water supply conduit 15.

The water supply conduit 15 is connected to a manifold 27 from which water is distributed to the various nozzles 12, 13 and 14. Hose 28 connects the manifold and nozzle 12, hose 29 connects the manifold and nozzle 13, and hose 3
0 connects the manifold and the nozzle 14. A needle valve 27' in the manifold can be adjusted to meter the amount of water supplied to each of the four nozzles individually by the water supply conduit 15.

In FIGS. 2 and 3, a second rotating brush 8 is shown.
The mounting of the front nozzle 12 supported on a carrier for the purpose of the present invention is shown in detail. Two brush support arms 10 are connected by a spreader rod 31, and this spreader rod 31 is connected to arm 1.
It serves two functions: to maintain the free ends of the fish in a well-spaced relationship with each other, and to hold the fish to be cleaned apart on both sides. For purposes to be described hereinafter, the central portion of the splendid rod is bent at an obtuse angle as shown in FIG. 3, and the bent portion projects toward the bull ring in a direction opposite to the direction of rotation. The plane of said portion is arranged at an acute angle with respect to the circumferential surface of said ring, as shown in FIG.

Nozzle 12 is supported from spreader rod 31 by bracket 32. This bracket 32 is provided with an opening at its free end through which a support for the nozzle extends and which is connected to the bracket by mutually opposed nuts 33 which are screwed onto the nozzle support. Fixed. Bracket 32 is positioned and dimensioned so that the spray opening of nozzle 12 is disposed in a plane perpendicular to the axis of rotation of brush 8 and bull ring, and as illustrated in FIG. , the nozzle is spaced apart from a circumferential surface of the bull ring.

The nozzle 12 is a flat, fan-shaped abrasion spray 3
4, which spray is preferably directed substantially into the mouth between the first rotating brush 5 and the bull ring 2, so that said spray has a slight glancing angle, such as between 5 and 45 degrees; That is, it is preferably adapted to engage the fish cavity wall at an angle between the spray and the cavity wall. The fan-shaped spray 34 has a fan angle of approximately 15 degrees as shown in FIG. 3 and is oriented with the plane of the spray substantially parallel to the axis of rotation of the bull ring. The viewing angle of the spray can be adjusted by rotating the angle mount of the nozzle with respect to the bracket 32 and tightening said nozzle mount in an adjusted position by tightening the nut 33, or by pivoting the bracket 32 relative to the spreader rod 31. and/or both.

The mounting body for the nozzles 13 and 14 has opposite ends connected to the bent tip 3 of the arm 38 by a pivot 36.
7 includes a spreader rod 35 mounted on it. As clearly illustrated in FIGS. 5 and 7, the spreader rod 35 is directed toward the approaching fish in a direction opposite to the direction of rotation of the bull ring as illustrated in FIG. 5 and 7, of plow-shaped profile with two concave wings interdigitated in a cusp-like manner as shown in FIGS. 5 and 7. Also shown in FIG. 2, the arms 38 lie in a plane substantially parallel to the plane of the spreader rod, and these portions are arranged to form a deformable knee-like structure with the spreader rod. and are separated from each other by the bent ends 37 of the support arms. The end of the support arm 38 remote from each bent tip 37 is connected by a pivot 39 to the upper end of a rigidly mounted base column 40. The knee mount for the spreader rod thus includes a spreader rod link 35 pivotally connected to a support link 38 by a pivot 36 in a folded relationship. This folded linkage is connected to frame 40 by pivot 39. Both links are approximately parallel to the circumferential surface of the bull ring 2, as shown in FIG.

It is desirable that the wing portions of the spreader rod support both sides of the fish and keep these both sides spread apart and pressed against the circumferential surface of the bull ring 2. This fish evisceration machine is used to remove the viscera of fish having various sizes and therefore various flesh thicknesses, so that the fish flesh thickness can be adjusted to the end of the decapitated fish or Since the rod tapers outward from the fish's backbone, the rod is mounted so that it moves near and far from the circumference of the bull ring in order to adapt the position of the rod to the thickness of each type of fish. It is desirable that To this end, the knee-shaped spreader bar mounting is deformably and integrally movable due to the pivot connections 36 and 39 of its components. The shape of the above-mentioned mounting body is such that the main components of this mounting body are connected in a hinged manner and are individually pressed elastically toward the circumferential surface of the bull ring, so that the shape of the fish engaged by the spretsuda rod is Automatically changes in response to thickness.

In order to press the plow-shaped spreader bar 35 integrally towards the bull ring 2, the support arm 38 is pressed for pivoting about the pivot 39 towards said bull ring. To accomplish this operation, a threaded rod 41 has a clevis 42 secured to its end adjacent support rod 38 by a lock nut 43. The clevis straddles the support arm 38 and is pivotally connected thereto by a pivot pin 44. The other end of the threaded rod 41 extends through an opening provided in a fixed angle bracket 45. Movement away from the bracket is restricted by a lock nut 46 threaded onto the end of the rod 41. A helical compression spring 47 surrounding each threaded rod 41 is engaged between the side of the angle bracket 45 opposite the lock nut 46 and the lock nut 48. Said spring reacting between the angle bracket 45 and the lock nut 48 causes the threaded rod 41 to pivot the bent tip 37 of the support rod 38 and thus the spreader rod 35 towards the bull ring 2. Push it away from the chevron bracket.
Lock nut 4 on threaded rod 41
By changing the position of the pivot 36, the upper limit position of the pivot 36 can be adjusted. Also, the force applied by the spring can be varied by adjusting the position of lock nut 48 along rod 41. Movement of lock nut 48 toward lock nut 46 precompresses spring 47 and increases the force exerted by said spring.

The above mechanism will control the approach of the outer end of the spreader rod 35 to the bull ring 2 and the force pressing said end of the spreader rod towards said bull ring. The approach of the spreader rod cusp to the bull ring and the force with which it is pressed toward the bull ring is controlled by a spring mechanism connected between the apex of the spreader rod and the base post 40. The spring mechanism includes a threaded rod 49 connected at its upper end to the apex of the spreader rod 35 by a pivot cross pin 50. The lower end of the threaded rod has two supports 40
It extends through an opening provided in a connecting rod 51 connecting the two.

The upward longitudinal movement of the threaded rod is limited by the engagement of a locking nut 52 on the threaded rod adjacent the lower end with the lower surface of the connecting rod 51. The threaded rod is engaged at its lower end with a connecting rod 51 by a helical compression spring 53 surrounding the threaded rod 49, and at its upper end is engaged with a lock nut 54 screwed onto the threaded rod 49. Spiral spring 5
3 in the upward longitudinal direction. The upper limit position of the apex of the spreader rod 35 is limited by the position of the lock nut 52 on the lower end of the threaded rod 49, and the force pressing the apex of the spreader rod toward the bull ring is limited by the position of the lock nut 54 on the threaded rod 49. Established by The closer the lock nut is to lock nut 52, the more precompressed the spring 53 and the greater the upward force it will exert on the apex of the spreader bar 35.

A group of nozzles 13 and 14 are mounted on a platform 55 suspended from the spreader bar 35 by a plate 56, and the upper edge of said plate 56 is attached to the wing section of the spreader bar 35 by bolts or rivets 57. installed on. Each nozzle is carried by a threaded tube secured to the platform by a lock nut 59. By adjusting the position of the locking nut along the threaded tube 58, the approach of the nozzle to the spreader rod 35 and thus to the bull ring 2 can be adjusted.

In addition to carrying a group of nozzles, platform 55 carries a fixed profile brush. A threaded rod 62 depending from a back surface 63 of a contour brush 64 connects spacer sleeves 60 and 61 positioned below and above said platform 55, respectively, and an opening provided in said platform. and extends through it. Sleeves 60 and 61 are clamped between an upper nut 65 and a lower nut 66 screwed onto rod 62 to secure the brush in place. The height of brush back 63 with respect to platform 55 is adjusted by changing the position of nuts 65 and 66 along rod 62. The central portion 67 of the bristles of the brush projects upwardly from the side portions 68 of the brush, and the upper portion of the brush has a shape approximately complementary to the cross-section of the fish being spread out onto the bull ring 2 for cleaning. is being used.

The position of the apex of the spreader rod relative to the fish is established by a gauge guide mounted within the apex as clearly illustrated in FIGS. 2 and 6. The leading shaft rests on the inside of the fish's backbone supported by the bull ring 2, and the apex of the spretzer rod rests on the spring 5 to maintain contact between the spretzer rod and the inner wall of the abdominal cavity of the fish.
It is pushed down against the force of 3. The outer part of the spreader rod is held against the wall of the abdominal cavity of the fish by a spring 47 which presses the pivoting end of the support rod 38 towards the bull ring 2.

Each of the sprays 70 emitted by the juxtaposed nozzles 13 is a flat fan-shaped spray, preferably having a sector angle of about 40 degrees. The fan-shaped sprays of the two nozzles 13 are substantially coplanar and are directed to overlap end-to-end at approximately the point of impact on the abdominal cavity of the fish. The support for the nozzle is angled as shown in FIGS. 2 and 6 so that the spray of the nozzle is directed at an approaching fish at a small glancing angle between 5 degrees and 45 degrees. is guided to provide an abrasive action to detach the remains of the internal organs from the abdominal wall of the fish.

Since the mounting for the nozzles 13 is chevron-shaped, the relative divergence of the sprays of said nozzles next to each other is adjusted by rotating the tube 58. The sprays are positioned such that their substantially coplanar relationship to each other is parallel to the axis of rotation of the bull ring 2. As mentioned above,
The access of the spreader rod 35 and the nozzle to the abdominal cavity of the fish is varied by longitudinal adjustment of the threaded tube 13. As can be seen in FIG. 4, the nozzles 13 are positioned sufficiently far apart from each other to spray substantially along opposite sides of the shower 69, and the height positions of the nozzles 13 are such that each spray passes through the spreader bar 35. The degree of curvature of each mount is adjusted to engage a portion of the abdominal cavity wall of the fish.

The spray 71 emitted by the nozzle 14 is
It is a wide angle fan-shaped spray, preferably having a fan angle of about 95 degrees. The spray is shown as being directed substantially vertically onto a portion of the abdominal wall of the fish after passing through brush 64. As previously mentioned, the adjustment of the nozzle 14 relative to the bull ring relative to the mounting platform 55 will affect not only the lateral extent of the fish's abdominal cavity covered by the spray, but also the force with which this spray impinges on the fish's abdominal cavity wall. will change.

In operation of the fish eviscerator illustrated in FIG.
eviscerated prior to being engaged by. However, at this point, the walls of the abdominal cavity, especially along the spine, still have residual blood or internal organs attached to them. The brush 5 acts on such residual internal organs rotating in a direction opposite to the direction in which the bull ring 2 is fixed and rotated. By directing a concentrated spray into the mouth between the brush 5 and the bull ring, as shown in FIG. 2, the ablation of residual viscera, especially along the spine, is significantly assisted. The abrasive action of this spray removes adhering visceral residue from the abdominal cavity wall. This removal action of the spray dislodges any visceral residue clinging to the abdominal cavity wall. The residue thus dislodged from the abdominal cavity wall by this removal action of the spray is then removed by a subsequent rotating brush 8, which is also rotating in a direction opposite to that in which the bull ring 2 is rotating. It can be very easily removed from the abdominal cavity.

When the central part of the abdominal cavity of the fish being carried by the bull ring 2 engages with the guide shaft 69, the fish can pass through the abdominal cavity wall by the said spreader bar to the extent necessary to pass through without being excessively rubbed against the abdominal wall of the fish. The spreader rod 35 is pushed away from the bull ring. However, due to the above action, the nozzle 13, the bush 64 and the nozzle 14 are connected to the nozzle 1.
3 is positioned to provide a fairly widely distributed abrasive spray with sufficient force to clean visceral residue. Any residue thus expelled but not removed from the abdominal cavity will be brushed away from the abdominal cavity by the fixed profile brush 64. Finally, this abdominal cavity is connected to nozzle 1.
The wide-angle spray 71 emitted by the device 4 gently rinses the body. At this point, the abdominal cavity of the fish is mostly inverted, so that if there is any manual finishing to be done, it will be easily evacuated for completion of the finishing evisceration operation, which requires very little manual finishing. Dew.

[Brief explanation of drawings]

1 is a perspective view of a bull ring type fish evisceration machine to which a finishing spray auxiliary according to the present invention is to be installed; FIG. 2 is an enlarged side view of the finishing spray auxiliary with a portion torn away; Fig. 3 is a cross-sectional view taken along line 3-3 in Fig. 2, partially cut away, and Fig. 4 is a cross-sectional view taken along line 4-4 in Fig. 2. Figure 5 is a cross-sectional view of the finishing auxiliary machine along line 5--5 in Figure 2, and Figure 6 is the same as Figure 2 except that other parts have been torn away. A fragmentary cross-sectional view of a portion of a similar finishing accessory; FIG. 7 is an elevational view of a portion of the finishing accessory taken along line 7--7 of FIG. 2 in the direction of the arrows; 2...Bull ring, 3...Ring gear, 4...
Pump, 5... First brush, 6... Hanging arm, 8
... second brush, 9 ... shaft, 10 ... hanging arm,
11... shaft, 12... spray nozzle, 13...
1st group of sprays, 14...Third nozzle, 15...
Conduit, 16...Storage tank, 17...Water pump, 18...
...Outlet conduit, 19...Variable speed hydraulic motor, 20
... Hydraulic pump, 21 ... Conduit, 22 ... Storage tank,
23...Return conduit, 24...Electric motor, 25
... Pressure regulator, 26 ... Pressure gauge, 27 ... Manifold, 27' ... Needle valve, 28 ... Hose,
29... Hose, 31... Spretsudarod, 3
2... Bracket, 33... Nut, 34... Fan-shaped spray, 35... Spreader rod, 36... Pivot, 37... Bent tip, 38... Arm, 39
... Pivot, 40 ... Support, 41 ... Threaded rod, 42 ... Clevis, 43 ... Lock nut, 44 ... Pivot pin, 45 ... Chevron bracket, 46 ... Lock nut, 47 ...
Helical compression spring, 48...Lock nut, 49...
...Threaded rod, 50...Pivot cross pin, 51...
...Connecting rod, 52...Lock nut, 53...Spiral compression spring, 54...Lock nut, 55...
...Platform, 56...Plate, 57...Rivet, 58...Threaded tube, 59
... Lock nut, 60, 61 ... Spacer sleeve, 62 ... Threaded rod, 63 ... Back, 64 ...
Contour brush, 65... Upper nut, 66... Lower nut, 67... Center part, 68... Side part, 69... Gauge show or leading show, 7
1...Spray.

Claims (1)

[Scope of Claims] 1. A finishing auxiliary machine constituting a part of a bull ring type fish eviscerating machine having a rotatable bull ring for carrying and transporting fish, which is guided by the bull ring. an abrasive spray device for emitting a spray of water onto the abdominal wall of the fish to be fished within an angular range of 5 degrees to 45 degrees in a direction opposite to the direction in which the fish is moved toward the abrasive spray device by the bull ring; Auxiliary equipment, characterized in that the spray is directed at a small glancing angle between the spray and the abdominal wall of the fish. 2. In the auxiliary machine described in claim 1,
An auxiliary device in which the abrasive spray device is adapted to emit a flat fan-shaped spray. 3. In the auxiliary machine described in claim 1,
An auxiliary device in which the abrasive spray device comprises two mutually adjacent nozzles emitting two flat fan-shaped sprays arranged in substantially coplanar interrelationship. 4 In the auxiliary machine described in claim 3,
An auxiliary device in which each abrasive spray device nozzle is adapted to emit a fan-shaped spray having a sector angle of approximately 40 degrees. 5. An auxiliary machine according to claim 1, comprising a mounting device for mounting the abrasive spray device so as to move toward and away from the bull ring. 6 In the auxiliary machine described in claim 5,
a contour-fixed brush carried by the mounting device behind the abrasive spray device in the direction of rotation of the bull ring, and by the mounting device on the side of the contour brush opposite the abrasive spray device; and a supported rinse spray device. 7 In the auxiliary machine described in claim 1,
a fixed-profile brush device engageable with the wall of the abdominal cavity of the fish in a position subsequent to the position where the abrasive spray device is directed onto the wall of the abdominal cavity of the fish; Auxiliary equipment comprising a rinse spray device. 8 In the auxiliary machine described in claim 1,
two rings spaced apart from each other in the circumferential direction of the bull ring;
an evisceration brush, the abrasive spray device being arranged to emit a spray between the two brushes. 9 In the auxiliary machine described in claim 8,
An auxiliary machine in which the brush is a rotating brush. 10. The auxiliary machine according to claim 8, wherein one of the brushes is a rotating brush and the other brush is a fixed contour brush. 11. The auxiliary equipment according to claim 1, which includes a rotary brush for removing internal organs that can engage with the abdominal cavity of the fish carried and carried by the rotatable bull ring, and the scraping spray device The bulls are staggered circumferentially of the bull ring from the eviscerating rotary brushes and for emitting a spray of water substantially into the bite between the periphery of the eviscerating rotary brushes and the periphery of the bull ring. An auxiliary device positioned on the side of the rotating brush from which the ring leaves. 12. The auxiliary machine according to claim 11, wherein a spreader rod is adjacent to the circumference of the bull ring but is spaced therefrom, and a spreader rod is arranged substantially parallel to the circumference of the bull ring and is arranged around the bull ring. a pair of pivotally mounted and pivotally coupled spretsuda rods that support the spreader rods so as to move toward and away from the fish and to engage freely with the abdominal cavity wall of the fish carried by the bull ring so as to push it open; a knee-like mounting device containing folded links;
a spring device for pressing the knee-like mounting device toward the bull ring. 13. The auxiliary device according to claim 12, wherein the knee-shaped mounting is configured to engage the wall of the abdominal cavity of the fish at a position subsequent to the position where the abrasive spray device strikes the wall of the abdominal cavity of the fish. An auxiliary machine comprising a contoured brush device carried by one link of the device and a rinse spray device on the side of the brush device opposite the scrubbing spray device. 14. In a finishing auxiliary machine forming part of a bull ring type fish evisceration machine having a rotatable bull ring for carrying and transporting fish, the fish is moved in a direction opposite to the direction in which the fish is moved by the bull ring. an abrasive spray device for emitting a spray of water directed at a small glancing angle in the range from 5 degrees to 45 degrees onto the wall of the abdominal cavity of the fish, and after the wall of the abdominal cavity of the fish has been abraded by said abrasive spray device; a non-rotating contour brush for brushing the wall of the abdominal cavity of a fish; a support device for supporting the brush for movement toward and away from the bull ring; and a spring device for urging the support device toward the bull ring. , a rinsing spray device located on the side of the brush opposite to the scrubbing spray device for spraying the wall of the abdominal cavity of the fish. 15. The auxiliary device of claim 14, wherein the abrasive spray device comprises two side-by-side nozzles for emitting two flat fan-shaped sprays arranged in substantially coplanar relationship. Auxiliary equipment. 16. In a finishing auxiliary machine constituting a part of a bull ring type fish evisceration machine having a rotatable bull ring for carrying and transporting fish, a finishing auxiliary machine that is adjacent to the periphery of the bull ring but separated from it. a spreader rod, and a knee-like mounting device including a pair of links, the pair of links being pivotally mounted by a fixed pivot device and extending substantially parallel to the periphery of the bull ring. pivoting the first link in a collapsed position with respect to the first link by an arranged first link and a pivot spaced from the immovable pivot device and arranged generally parallel to the circumference of the bull ring; The spreader rod is movably connected and moves toward and away from the circumference of the bull ring and supports the spreader rod so as to engage the wall of the abdominal cavity of the fish supported by the bull ring so as to spread the wall. A finishing auxiliary machine consisting of a second link. 17. The auxiliary machine according to claim 16, comprising a spring device that presses the second link of the knee-shaped mounting device toward the bull ring.