US3694858A

US3694858A - Gill faller

Info

Publication number: US3694858A
Application number: US4218A
Authority: US
Inventors: Ichizo Isumi
Original assignee: HAKUSHIN SEISAKUSHO CO Ltd
Current assignee: HAKUSHIN SEISAKUSHO CO Ltd
Priority date: 1969-01-27
Filing date: 1970-01-20
Publication date: 1972-10-03
Anticipated expiration: 1989-10-03
Also published as: GB1288734A; JPS4711549Y1; US3699643A; FR2029503A1; FR2029503B1; DE2002834B2; DE2002834A1

Abstract

A lightweight and load-resistant gill faller having a gill faller body of a substantially uniform thickness over an entire length thereof and combing pins advantageously fixedly disposed relative to the body by a plastic layer. Manufacturing method is disclosed as to forming the end portions by pressing with elimination of conventional cut shaping.

Description

United States Patent 1151 3, 94,858

Isumi 1 Oct. 3, 1972 54] GILL FALLER 2,927,347 3/1960 Kohler 19/129 R Inventor: Ichizo lsulni, Osaka Japan l HOldSWOl'th l R [73] Assignee: Hakushin Seisakusho Co., Ltd., O GN PATENTS OR APPLICATIONS Osaka Japan 887,352 1 /l962 Great Britain ..19/129 R [22] Filed: Jan. 20, 1970 635,279 4/1950 Great Britain ..19/129 R 1 pp No: 4,218 454,608 10/1936 Great Br1ta1n ..19/129 A Primary Examiner-Dorsey Newton Foreign Pp Priority D318 Attorney-Robert E. Burns and Emmanuel J. Lobato J ..44 7345 Jan 27, 1969 apan ABS CT [52] US. Cl. ..19/129 R A lightweight and load resistant m faller having 8 m [51] ll}!- Cl. ..D0lg 5/14 faller body of a Substantially uniform thickness over [58] Field of Search ..19/129 R, 129 A an entire length thereof and combing pins vantageously fixedly disposed relative to the body by a [56] References Cited plastic layer. Manufacturing method is disclosed as to UNITED STATES PATENTS forming the end portions by pressing with elimination of conventional cut shaping. 3,532,077 10/1970 Mann et al ..19/129 R 3,057,021 10/1962 Hill ..19/129 R 8 Claims, 34 Drawing Figures l :ll i 1 PATENTED 3 I97? SHEET 3 OF 4 GILL FALLER 'The present invention relates to an improved gill faller and a method for manufacturing the same, more particularly it relates to a gill faller having a considerably reduced weight together with a remarkably enhanced adaptability for a high machine speed running under various sever gilling conditions and a considerably simplified method for manufacturing a gill faller having such superior functional features.

The gill faller of the present invention is advantageously and particularly adapted for use in a gillscrew driving type gill box provided with faller guides.

In the following description, the term combing cycle refers to a horizontal traveling cycle of the gill faller along faller rails during the combing action, wherein pins of the gill faller act on processed fibrous slivers.

The term retuming cycle refers to a horizontal traveling cycle of the gill faller along the faller rails, wherein the gill faller itself horizontally returns to the starting position of the combing operation but the pins do not act upon the processed fibrous sliver.

The term shifting cycle refers to a vertical traveling cycle of the gill faller along the faller guides, wherein the gill fallers move from the combing cycle to the returning cycle and vice versa.

Most of the convention gill fallers are provided with inevitable drawbacks which are mainly caused by their manufacturing method. In a typical conventional gill faller, the gill faller includes an intermediate portion adapted for disposition of a plurality of prescribedly and spacedly aligned combing pins and a pair of end portions adapted for engagement with a gill faller driving mechanism and integral sideways of the intermediate portion. Disposition of the combing pins to the intermediate portion is obtained through fixedly embedding butt ends of the pins into holes or recess formed vertically through or to the intermediate portion. In another method, the butt ends of the pins are firmly disposed to a pin strip unit or units and the unit or units have to be inserted fixedly into a groove or grooves formed longitudinally through or to the intermediate portion. Anyway, such formation of a cavity or cavities such as holes or grooves is necessary in the pins disposition and the intermediate portion is inevitably provided with such cavernous portions. Further, the end portions have to be shaped as being adaptable for a stable and exact engagement with the gill faller driving mechanism and this shaping is in most cases performed by a cutting operation.

Several serious troubles arise from the above described characteristic features of the conventionaltype gill fallers and their manufacturing methods.

In the first place, a problem of stress concentration during the use must be discussed. As is abovedescribed, the intermediate portion is provided with one or more cavernous portions and when the gill faller is subjected to external loading during the gilling operation, various stressed tend to concentrate upon boundaries of such cavernous portions. In addition to this, because the end portions are shaped by a cutting operation and the end portions are composed of portions of different thicknesses, the various stresses tend to concentrate upon boundaries between such portions of different thicknesses. As is well-known by persons skilled in the art, stress concentration upon a particular part of a member often tends to quicken the breakage of the member at that part where stresses are concentrated. Therefore, the conventional manufacturing method of the gill fallers inevitably brings about a quick wearingout of the resultant gill fallers.

In the second place, the problem of the gill faller's total weight should not be overlooked. Heavy weight construction of the conventional gill faller is caused by two main reasons. The first reason is that, in order to provide the end portions with a shape adapted for engagement with the gill faller driving and guiding mechanisms by the cutting operation, the end portions are required to have a sufficient thickness suitable for suchshaping by the cutting operation.

The second reason is' that, because one or more cavernous portions must be formed through the intermediate portion leaving a sufficient resistance against a transverse load application during the combing action and an impact load application in the shifting cycle, the

intermediate portion must possess a thickly constructed form, also. Such increase in the thickness necessarily leads to increase in the total weight of the gill faller. Thusly increased weight of the gill faller often times causes unsmooth movement of the gill faller during the horizontal movement thereof, that is, during the combing and returning cycles. The increased weight results in the increase in the impact energy at the time of the gill fallers shifting cycle and the latter, as is well-known, inevitably causes quick and frequent breakage of the gill faller and its related machine parts. Further, increased weight naturally brings about an increased frictional force during the horizontal movement of the gill faller along the faller rails and this increased frictional force quickens frictional wearing out of the gill faller and the cooperating machine parts. It should be also noted that the thick construction of the gill faller requires increased expense of the raw material per single gill faller resulting in undesirable increase in the manufacturing cost.

Thirdly, there arises the problem of a fatigue strength of the gill faller in relation to the problem of easiness in the manufacturing processes thereof. As is already described, one or more cavernous portions have to be formed through or to the intermediate portion of the gill faller in a precise manner. As is well-known in the field, it is very difficult to form holes or grooves through or to a hard article such as a steel member, which holes or grooves have horizontal sizes considerably small in comparison with their vertical sizes. This particularly creates problems when precision work is required as in the case of gill faller manufacturing. In order to mitigate this difficulty, use of low carbon steel is recommended in the manufacturing of the gill faller.

' However, the use of low carbon steel inevitably is accal improvement is found in a throw-away type gill faller such as disclosed in the US. Pat. No. 3,344,482 or the British Pat. application No. 11,215/65 or the French Pat. No. 1,438,932. This type of gil faller comprises a body of synthetic resinous material provided with a longitudinally embedded resilient spring metal reinforcing element. By using the body of synthetic resinous mold, disadvantages due to heavy weight construction is solved to an appreciable extent. However, in the construction of this type of gill faller, the problem of stress concentration still remains unsolved. Especially at the narrow portion between the side termination of the reinforcing member and the inside termination of the gill screw engageable portion, the stress tends to concentrate. In some modifications of this type of gill faller, the gill screw engageable portion is made of steel material. Also in this modified construction, the stress tends to concentrate at the boundary of the steel end and the reinforcing element. In addition to this, because this type of gill faller is mainly made up of resinous material, especially, the corners of the gill screw engageable portion and the bottom surface of the faller rail engageable portion tend to wear out by frequent impact and frictional contact with the cam, gill screw or faller rail. Resinous construction of this type of gill faller also provides the problem of relatively easy formation of permanent strain due to gilling operation. Further, it is well understood by persons skilled in the art that an optimum weight is required for the construction of the gill faller. It is true that this type of gill faller succeeded in solving the problem due to heavy construction but it is resultingly accompanied with troubles opposite those mentioned above caused by excessively light weight construction thereof. Because of this too light a weight construction, this type of gill faller is often liable to fail in rendering its pins sufficiently to pierce into the processed fibrous sliver, which has a recent tendency to increase its thickness. This insufficient piercing of the pins into the fibrous mass sometimes causes erroneous positioning of the gill fallers in relation to the gill screws resulting in serious malfuctions in the machine driving. This is also experienced in the actual use of this type of gill faller.

Another typical improvement includes a plurality of prescribedly aligned pins whose butt ends are em bedded into a rubber layer or the like sandwiched by a pair of intermediate steel portions. Even in the case of this improvement, problems arising from the end por tion cutting is not solved and stress concentration occurs at the boundary between the thick end portion and the two separated thin intermediate portions.

A principal object of the present invention is to provide an improved gill faller which is released from the abovedescribed troubles caused by stress concentration, thereby being provided with an enhanced resistability against breakage.

Another object of the present invention is to provide an improved gill faller of a remarkably lightweight construction assuring a smooth movement thereof, reduced wearing-out thereof by frictional contact with related mechanical parts and reduction in the units manufacturing cost.

' Still another object of the present invention is to provide a lightweight gill faller having a remarkably enhanced impact strength, recoverability from deformation imparted thereto and increased fatigue strength ascertaining a long lasting use thereof under severe sliver combing conditions.

Further object of the present invention is to provide an improved lightweight gill faller having an optimum weight in relation to the processed fibrous slivers thickness ascertaining a considerable reduction in the malfunction frequency with a desirable and sufiicient combing action upon the processed fibrous sliver.

Another object of the present invention is to provide an improved lightweight gill faller particularly adapted for a high speed running of the gill box, thereby elevating the processing efficiency of the box.

Still another object of the present invention is to provide an improved lightweight gill faller attainable of a considerable reduction in noise during the gilling operation.

A still further object of the present invention is to provide an improved lightweight gill faller wherein such reduction in the wearing out of gill screws, faller rails, faller guides, cams and other related machine parts can be assured.

A still further object of the present invention is to provide an improved method for manufacturing the above-described gill faller in a very simplified manner.

Still further object of the present invention is to provide an improved method for manufacturing the abo vedescribed gill faller without the use of low carbon steel as the raw material.

In order to attain the above-described objects, the gill faller of the present invention, which is particularly adapted for use in a gill screw driving type gill box having faller guides, is provided with at least one faller body having an intermediate portion adapted for disposition of pins and a pair of laterally integral end portions adapted for engagement with the gill faller driving and guiding mechanisms, both portions being formed of a single plate member having a substantially similar thickness. Disposition of the pins to the intermediate portion is obtained by using one or more plastic layers at least partly covering the intermediate portion.

In the manufacturing of the above-specified gill faller, a purposed pattern of a gill faller body plain plate is formed by, for example, a press cutting technique. Next, the end portions of the plate are pressed, more advantageously heat pressed, so as to provide a shape adapted for engagement with the gill faller driving and guiding mechanisms prior to the disposition of the pins to the intermediate portion. When special accuracy is required for the end portions mechanical design, the known cutting operation may be applied thereto. Pin disposition is advantageously done by using one or more plastic layers at least partly covering the intermediate portion firmly embracing the butt ends of the pins.

A gill faller constructed according to the invention with modifications and a method for manufacturing the gill faller will now be described, by way of several typical embodiments only, with reference being made to the accompanying drawings, in which:

FIG. 1 is a front side elevation view of an embodiment of the gill faller body used for the gill faller of the present invention,

FIGS. 2A and 2B are plan elevation views of two typical embodiments of the end portions of the gill faller body shown in FIG. 1,

FIG. 3 is a fragmentary perspective view of an embodiment of the gill faller of the present invention,

FIGS. 4A to 4D are cross section views of several embodiments of the pins disposition to the gill fallerbody according to the present invention,

FIGS. 5A to SE are cross section views of several embodiments of the intermediate portion of the gill faller body shown in FIG. 1,

FIG. 6 is a perspective view of a gill box whereon the gill faller of the present invention is advantageously used,

FIG. 7 is a cross section viewof an embodiment of the gill faller of the present invention provided with prescribedly aligned pins disposed along both side surfaces of the gill faller body,

FIGS. 8A to 11B are fragmentary plan views in section and cross section views of several modifications of the gill faller of the present invention,

FIG. 12 is a cross section view of an embodiment of the gill faller of the present invention having a cleaning edge,

FIG. 13 is an explanatory side view for showing the cleaning action of the gill faller shown in FIG. 12,

FIGS. 14A and 14B are cross section views of several modifications of the gill faller shown in FIG. 12,

FIGS. 15A to 15C are cross section views of several modified embodiments of the gill faller of the present invention having easier pin replacement,

FIGS. 16A to 16D are cross section views of several modified embodiments of the gill faller of the present invention.

Referring to FIG. 1, an entire front view of an embodiment of the gill faller body of the present invention is illustrated. The gill faller body 1 is composed of an intermediate portion 2 adapted for disposition of combing pins and a pair of end portions 3 integral with the intermediate portion 2. The end portions 3 are adapted for engagement with the gill faller driving and guiding mechanism.

The detailed construction of the end portion 3 is shown in FIGS. 2A and 2B illustrating two typical embodiments. In the embodiment shown in FIG. 2A, the end portion 3 is composed of a portion 4 integral with and is an extension of the intermediate portion 2 and adapted for engagement with faller guides and ends of faller rails during the shifting cycle movement. A terminal portion 6 is adapted for engagement with gill screws and a connecting portion 7 is disposed intervening between the portion 4 and the terminal portion 6. In the case of the gill faller having these type end portions 3, only one side of the portion 4, that is, the lower side of the portion in the drawing, is cooperative with the faller guides during the shifting cycle movement. Another typical embodiment is shown in FIG. 23, wherein the end portion 3 is also composed of a portion 4, a terminal portion 6 and a connecting portion 7. In this construction, both sides of the portion 4 are cooperative with the faller guides during the shifting cycle movement. For example, a comer part 8 engages with the faller guide in one shifting cycle movement while an opposite corner part 9 engages with the faller guide in another shifting cycle movement.

In both embodiments, the end portions 3 and the intermediate portion 2 are formed of a single plate member having a substantially uniform thickness as is well seen in the drawings. This is the most important, essential and characteristic constructional feature of the gill faller of the present invention. Absence of the difference in thickness releases the gill faller of the present invention from the problem of undesirable stress concentration, which is a fatal drawback possessed by the conventional gill fallers. Because the stress concentration is eliminated, frequency of the accidental breakage of the gill faller can be considerably minimized and the lifetime of the gill faller can be remarkably lengthened.

In the manufacturing of the gill faller body 1 of the present invention, a purposed pattern of a gill faller body plain plate is formed in the first place by, for example, a press cutting technique. Next, shaping of the end portions 3 is carried out through a pressing application to the end portions 3, and a gill faller body 1, as shown in FIGS. 1, 2A and 2B, is obtained. It should be greatly appreciated that no cutting operation is employed in the shaping process of the end portions 3. As is apparent from the foregoing discussion, because the cutting operation is not a need in the art of the present invention, the end portions are not required to have a sufficient thickness suitable for such shaping by the cutting operation naturally resulting in the thinner construction thereof. Reduction in the thickness naturally results in reduction in the gill fallers weight and a lightweight gill faller can be acquired accordingly. Elimination of the cutting operation is one of the most important merits of the manufacturing method of the present invention. Thusly, troubles arising from heavy weight construction can be solved by the employment of the method of the present invention. In addition to this weight problem, elimination of the cutting operation has one more significant meaning. Elimination of the cutting operation makes it unnecessary to use low carbon steel as the gill faller material and this enables the gill faller of the present invention to be free from the problems relating to impact strength and fatigue strength.

Next, explanation will be made as to the disposition of the combing pins to the gill faller body 1 with reference to the embodiment shown in FIG. 3. The combing pins 1 1 are disposed in relation to the side surface of the intermediate portion 2 with their foot ends 12 embedded firmly within a plastic layer 13 at least partly covering the intermediate portion 2 of the gill faller body 1. This plastic layer 13 may be divided into two or more units laterally and successively arranged along the intermediate portion 2. Various modes of pin disposition are illustrated in FIGS. 4A to 4D together with modification in the combination of the plastic layer 13 with gill faller body 1. For example, the faller body 1 is entirely covered with the plastic layer 13 in the embodiment shown in FIG. 4A while the fonner is partly covered by the latter in the other embodiments.

In the disposition of the pins 11 on the faller body 1, the pins 11 are held by a jig in a prescribed arrangement. Next, thusly held the pins 11 are placed within a mold together with the gill faller body 1 with their food ends 12 in a predesigned positional relationship to the side surfaces of the gill faller body 1. By filling the molten plastic substance into the mold, the pins 11 are firmly combined with the faller body 1 after solidification of the plastic substance. In another embodiment of the method, a pair of gill faller bodies are amalgamated together in a side by side superposed relationship leavfaller body is eliminated. As already explained, elimination of such operation frees the gill faller of the present invention from any stress concentration problem, thick construction and the use of low carbon steel. Especially, elimination of precision work needed in such operation greatly contributes to the reduction in the gill fallers manufacturing cost.

Stable fixing of the pins in relation to the faller body can be easily controlled as described through suitable selection of the used plastic substance in relation to the molding condition.

When special various strengths are required for the intermediate portion 2 of the faller body 1, the crosssectional pattern of the intermediate portion 2 can be changed as desired by subjecting the portion to pressing concurrently with pressing of the end portions 3. Some of the embodiments of the cross-sectional pattern of the intermediate portion 2 are illustrated in FIGS. 5A to SE. The cross-sectional pattern of the intermediate portion 2 can be selected as desired basing on the analysis of the mechanical loadings or shocks applied thereto during the actual usage thereof.

An embodiment of the intersecting gill box employing the gill fallers of the present invention is shown in FIG. 6, wherein a plurality of gill fallers 14 are moved along sideway located faller rails 17 being driven by sideway located gill screws 16. The shifting cycle movement of the gill fallers 14 is .perforrned along faller guides 18 located near the terminations of the faller rails 16 by earns 19. All the mechanical operations are performed in a manner the same with those of the convention gill screw driving type gill boxes. 1 In the foregoing embodiments, the gill faller of the present invention is provided with a plurality of combing needles arranged along only one side of the intermediate portion. However, another embodiment is illustrated in FIG. 7, wherein the combing pins 11 are aligned along sides of the intermediate portion 2 of the gill faller body 1 with their foot ends embedded within the plastic layer 13 covering the intermediate portion 2.

In all the foregoing examples, the gill faller of the present invention is provided with a single gill faller body. Several modifications, wherein two or more gill faller bodies are used in one gill faller, can be developed in conformity to the requirements in the actual gilling operation. Several of such modified embodiments are shown in FIGS. 8A to 1 1B.

In the case of the embodiment shown in FIGS. 8A and 8B, the gill faller 14 includes two gill faller bodies la and lb amalgamated in a side by side superimposed arrangement and the combing pins 11 are disposed relative to one side surface of the gill faller body la 8 with their foot ends 12 being fixedly held by the plastic layer 13. Due to this superimposed construction, the

gill faller can well withstand external load application. Especially, the intermediate portion of the gill faller becomes durable against repeated load applications under sever combing conditions.

The embodiment shown in FIGS. 9A and 9B is a modification of the foregoing one. In this embodiment, the

intermediate portions

2a and 2b of the gill faller bodies la and lb, respectively, are spaced apart from each other forming a gap therebetween and the gap is receptive of the foot ends 12 of the pins 11 together with the plastic padding 13 (layer). Because the foot ends 12 of the pins 11 are firmly held between the two

intermediate portions

2a and 2b, stable and reliable holding of the combing pins 11 can result.

The embodiment shown in FIGS. 10A and 10B is almost the same with that shown in FIGS. 9A and 9B in its construction and purpose with the only exception that the faller bodies 1a and lb are partly spaced apart form each other at the faller guide engageable portion 4 and at the portion connected to the termination of the intermediateportion 2. This type of gill faller is suitable in a case wherein some extent of thickness is required for the faller guide engageable portion for certain mechanical reasons.

Referring to FIGS. 11A and 1 1B, an improvement of the gill fallers shown in FIGS. 9A, 9B, 10A and 10B is introduced. In this case, both faller bodies la and lb are arranged in an entirely spaced apart disposition and, in the intermediate portion 2, the gap is filled with the plastic padding l3 fixedly holding the pins 11 while, in the end portions 3, an intervening member 21 is inserted within the gap. By suitably shaping the intervening member 21, the faller body 1a can be perfectly in common with the faller body 1b in its shape. So, a considerable reduction in the manufacturing cost can result.

In all of the illustrated embodiments, the pins can be disposed relative to the faller bar body or bodies both in a single line disposition or in a double line disposition.

During the combing cycle, the combing pins are brought into contact with the fibrous mass and, after repeated contacts of this kind, short fibers or other foreign substances contained with the fibrous mass tend to stick and gradually accumulate on the pin foot portions. Therefore, it is necessary to clean the pins, often-times during the gilling operation, so as to always ensure a fine combing action on the processed fibrous mass. A solution to this cleaning problem will be found in the embodiment illustrated in FIG. 12.

In this embodiment, the gill faller is provided with at least one longitudinally extending protuberance 22 formed on one side of the plastic layer 13. In the following explanation, this protuberance 22 will be referred to as the cleaning edge 22. The operation of this cleaning edge 22 is as follows, reference being made to FIG. 13. In the disposition shown in FIG. 13, a preceding gill faller 14a is supposed to be just at the starting position of the shifting cycle movement and the following gill faller 14b is supposed to be just at the terminal position of the combing cycle movement. The stem portion of the pins 11 of the preceding gill faller 14a slides in contact over the cleaning edge 22 of the following gill faller 14b during its vertical movement and the foreign substances or short fibers sticking to the pin stem portions are automatically cleaned off through this sliding contact.

In the modification shown in FIG. 14A, the faller body 1 itself has such a protuberance, accordingly, the plastic layer 13 is provided with the cleaning edge 22 while the embodiment shown in FIG. 14B is provided with cleaning brushes 23 planted to the plastic layer 13 longitudinally along the gill faller and such cleaning brushes 23 function in a manner almost identical to the cleaning edge 22.

When the combing pin is accidentally broken during the combing operation, the broken combing pin must be replaced with a new one. In order to carry out this pin replacement works on the gill faller of the present invention, the plastic layer 13 must firstly be removed from the faller body 1. In the embodiments shown in FIGS. 15A, 15B and 15C, the plastic layer 13 is provided with one or more recesses 24 formed thereto or therethrough. At the time of pin removal, some breaking tools such as a chisel is inserted into the recess 24 and, by applying an impart loading to the tool, the plastic layer 13 will be broken easily.

In the embodiment shown in FIG. 15A, the recess 24 is formed to a plastic layer 24 on a side opposite the pin about the intermediate portion 2 of the faller body 1 while, in the embodiment shown in FIG. 153, the recess 24 reaches the side surface of the intermediate portion 2 through the plastic layer 13. The recess 24 may be formed at a location shown in FIG. 15C.

Various modifications may be. derived from the essential features of the gill of the present invention For example, as shown in FIGS. 16A to 16D, the combination mode of the pins 11, the plastic layer 13 and the intermediate portions 2a and 212 may be changed as desired in accordance with requirements in the actual use of the gill faller.

Such modifications may be applied to the manufacturing method of the present invention, also.

For example, when a particular accuracy is required concerning the mechanical engagement of the gill faller with the gill screw, a slight cutting operation may be applied to the terminal portion 6 adapted for engagement with the gill screw.

Further, a slight application of a filing technique to the portion 4 adapted for engagement with the faller guides 18 ascertains a smooth movement of the gill fallers of the present invention.

When a particular hardness is required for the end portions 1 adapted for engagement with the gill fallers driving arid guiding mechanisms, firstly, a quenching operation is applied to the entire length of the gill faller body 1 prior to the pins disposition and, thereafter, one or more times of additional quenching operations may be applied to the end portions 3 only.

What is claimed is:

1. An improved gill faller usable for a gill screw driving type gill box having faller guides comprising, in combination, at least one gill faller body having a substantially uniform thickness over its entire length, and a plurality of combing pins disposed to said gill faller body in a prescribed arrangement; said gill faller body being composed of a longitudinal intermediate portion 10 fii ii iii ?2$3t$ei?i n?g?1"l%& ii'ififi ends of said intermediate portion; each said end portion including an inner portion integral of a respective end of said intermediate portion and adapted for engagement with a gill faller guiding mechanism of said gill box, a terminal portion adapted for engagement with a gill faller driving mechanism of said gill box, and a connecting portion integrally disposed between said inner and terminal portions; and one or more plastic layers attached to and at least partly covering said intermediate portion and fixedly holding foot ends of said combing pins.

2. An improved gill faller as claimed in claim 1, wherein said intermediate portion has a square cross section.

3. 'An improved gill faller as claimed in claim 1, wherein said intermediate portion has a non-square cross section.

4. An improved gill faller as claimed in claim 1, wherein said gill faller comprises a second gill faller body and means joining said second body and said one gill faller body together in a side by side arrangement over an entire length of said bodies.

5. An improved gill faller as claimed in claim 1, wherein said gill faller comprises a second gill faller body and means joining said second body and said one gill faller body together in a side by side superposed arrangement to provide a gap between said intermediate portions of said bodies, wherein said combing pins are disposed within said gap.

6. An improved gill faller as claimed in claim 5, wherein said gap extends a length greater than said intermediate portions.

7. An improved gill faller as claimed in claim 1, further comprising a second said gill faller body, and joining means for interconnecting said one gill faller body and said second gill faller body together in a side by side arrangement to provide a gap over an entire length of said bodies, and an intervening member disposed to fill the gap between said end portions of said bodies, and wherein said pins are disposed within the gap between said intermediate portions of said bodies.

8. An improved gill faller for a gill box having faller guides and screw driving means comprising, in combination, a plurality of combing pins; a gill faller body; and means interconnecting said pins to said body; said gill faller body comprising a unitary metal plate having a substantially uniform thickness over its entire length, and having a longitudinal intermediate portion and a pair of end portions respectively integral with the opposed ends of said intermediate portion; each said end portion including an inner portion integral with a respective end of said intermediate portion and adapted for engagement with faller guides in a gill box, a terminal portion adapted for engagement with a screw driving means in said gill box, and a connecting portion disposed between said inner and terminal portions; wherein said means interconnecting said pins to said body includes a plastic layer attached to and partly covering said intermediate portion, said combing pins having foot ends embedded in said plastic layer and disposed wholly external of said gill faller body.

Claims

1. An improved gill faller usable for a gill screw driving type gill box having faller guides comprising, in combination, at least one gill faller body having a substantially uniform thickness over its entire length, and a plurality of combing pins disposed to said gill faller body in a prescribed arrangement; said gill faller body being composed of a longitudinal intermediate portion adapted for disposition of said combing pins and a pair of end portions respectively integral with the opposed ends of said intermediate portion; each said end portion including an inner portion integral of a respective end of said intermediate portion and adapted for engagement with a gill faller guiding mechanism of said gill box, a terminal portion adapted for engagement with a gill faller driving mechanism of said gill box, and a connecting Portion integrally disposed between said inner and terminal portions; and one or more plastic layers attached to and at least partly covering said intermediate portion and fixedly holding foot ends of said combing pins.

3. An improved gill faller as claimed in claim 1, wherein said intermediate portion has a non-square cross section.