Title of Invention	"A LIQUID DISTRIBUTION DEVICE FOR DISTRIBUTING LIQUID TO TEXTILE DYEING MACHINES AND METHOD OF DISTRIBUTION THEREOF"
Abstract	A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof, comprising a vessel (9) having a plurality of inlet pipes, (5, 6) and a plurality of outlet pipes (7, 8) to facilitate distribution of liquid to a corresponding number of textile dyeing machines (not shown). Each of the inlet means (5, 6) is arranged to receive liquid and to transfer the liquid to the vessel (9). Liquid is mixed in the vessel (9) and then distributed from the vessel (9) to each of the textile dyeing machines (not shown) via the outlet pipes (7, 8).

Title of Invention

"A LIQUID DISTRIBUTION DEVICE FOR DISTRIBUTING LIQUID TO TEXTILE DYEING MACHINES AND METHOD OF DISTRIBUTION THEREOF"

Abstract

A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof, comprising a vessel (9) having a plurality of inlet pipes, (5, 6) and a plurality of outlet pipes (7, 8) to facilitate distribution of liquid to a corresponding number of textile dyeing machines (not shown). Each of the inlet means (5, 6) is arranged to receive liquid and to transfer the liquid to the vessel (9). Liquid is mixed in the vessel (9) and then distributed from the vessel (9) to each of the textile dyeing machines (not shown) via the outlet pipes (7, 8).

Full Text	The present invention relates to a.liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof, to a liquid distribution device that distributes liquid to two or more textile dyeing machines. The present invention relates to a liquid distribution device for distributing liquid to a plurality of textile dyeing machines, which liquid di$tribution device comprises, a vessel having a'plurality of liquid inlet openings and liquid outlet openings in the vessel wall wherein when the device is arranged, for use, all of the outlet openings are above the inlet openings and the outlet openings are arranged on the same horizontal plane, such that in use of the device, incoming liquid from a plurality of different sources is mixed in the vessel and then distributed to the plurality of textile dyeing machines simultaneously and in substantially equal quantities through the outlet openings. In the process of dyeing batches of yam packages it is common that the quantity of yam packages exceeds the capacity of a single dyeing machine. Therefore, it is necessary to divide the yam packages into smaller batch sizes. Each, smaller, batch may then be processed by a different dyeing machine. Variants in colour and shade often result between the batches when different dyeing machines have been used. The present invention also relates to a method of distributing liquid to a plurality of textile dyeing machines, wherein liquid from a plurality of different sources is pumped into a vessel, via a plurality of inlet openings in the vessel wall, from a plurality of different sources and is mixed in the vessel, the liquid is then distributed from the vessel to the plurality of textile dyeing machines via a plurality of outlet openings in the vessel wall, substantially simultaneously and in substantially equal quantities, all of the inlet openings being located below the outlet openings and the outlet openings being in substantially the same horizontal plane. To improve uniformity of colour and shade from the dying process it is common to joint the pipe-work system of two dyeing machines together by means of a coupling device. Traditional coupling methods and coupling devices are particularly suitable for use with machines fitted with extemal pipe-work. According to a traditional coupling device, dyeing liquid can re-distributed between machines by coupling the pump discharge of a first machine to the dyeing vessel of a second machine and likewise coupling the pump discharge of the second machine to the dyeing vessel of the first machine. A problem associated with this, traditional, coupling device is that the liquid level in both machines, relative to each other, becomes unequal as the dyeing process progresses. Therefore, the problems of variations in colour and shade may still occur in the yam packages in each machine. The liquid levels in both machines may be equal at the beginning of the dyeing process. However, as the dyeing process progresses, the liquid level of one machine may vary from the other due to a variation in flow rate from the pumps supplying each machine. Typically, the problem is resolved by slowing down the flow rate to one machine or shutting down one of the pumps until the liquid level of both machines equalizes. In an attempt to regulate the liquid levels, a frequency inverter may be used. Using a frequency inverter may reduce the problems associated with unequal liquid levels in each of the dyeing machines, but its use often results in increased cost of the dyeing machine and may lead to the loss of competitiveness in the market. Therefore, it is an object of preferred embodiments of the present invention to provide an improved liquid distribution device. Accordingly, a first aspect of the present invention provides a liquid distribution device for distributing liquid to a plurality of textile dyeing machines, which liquid distribution device comprises a vessel having liquid inlets and liquid outlets, each of the liquid outlets being arranged, in use, to distribute liquid to the plurality of textile dyeing machines. Suitably, the liquid distribution device is arranged such that, in each of the liquid outlets distribute liquid in substantially equal quantities to each of the plurality of textile dyeing machines. Preferably, the distribution of liquid to each of the plurality of textile dyeing machines occurs at the same time. Suitably, the liquid outlets, being provided by openings in the vessel wall, are arranged such that, in use the liquid outlets are aligned on the same horizontal plane so as to effect even distribution of the liquid to the textile dyeing machines. Suitably, an outlet conduit connects to a liquid outlet. Preferably, a separate outlet conduit is connected to each of the plurality of liquid outlet. Preferably, the proximal end of the inlet conduit extends through the opening into the vessel. The liquid inlets, being provided by openings in the vessel wall, may be arranged such that, in use, the liquid inlets are aligned on a horizontal plane. Suitably, an inlet conduit connects to a liquid inlet. Preferably, a separate inlet conduit is connected to each of the plurality of liquid inlets. The proximal end of the inlet conduit may connect to the vessel wall at the liquid inlet opening. Preferably, the proximal end of the inlet conduit extends through the opening into the vessel. Suitably, the proximal end of the inlet conduit is provided with an elbow or bend. In use, the elbow or bend changes the direction of liquid flow into the vessel. Suitably, the angle of change of direction of the liquid flow corresponds with the angle defined by the elbow or bend. The angle of the elbow or bend, defined relative to the longitudinal axis of the inlet conduit may be an angle greater than 0° but less 90°. Suitably, the flow angle is at least 10°, preferably at least 15 °, more preferably at least 20° and particularly at least 30". Suitably the flow angle is less than 80°, preferably less than 70°, more preferably less than 60° and particularly less than 50°. Preferably, the liquid flow angle is 33°. The liquid inlets are suitably arranged to avoid a head on collision of inlet liquid flow from each of the liquid inlets. Suitably, the proximal ends of the inlet conduits are arranged relative to each other such as to effect, in use, swirling motion and turbulent flow of the liquid entering and in the vessel. Suitably, the liquid outlets are located above the liquid inlets when the liquid distribution device is arranged for use. Suitably, the distal end of the inlet conduit and the outlet conduit are connected to a pipe arrangement, which pipe arrangement facilities liquid distribution between the plurality of textile dyeing machines and the vessel. Preferably, the liquid distribution device comprises a plurality of pipe arrangements. Advantageously, the number of pipe arrangements corresponds in number to the plurality of textile dyeing machines. Suitably, one inlet conduit and one outlet conduit is connected to each pipe arrangement. Suitably, each pipe arrangement comprises a first conduit and a second conduit. Preferably, the first conduit and the second conduits are arranged co-axially. The co-axially arranged first and second conduits define an annular passage between them, with the first conduit defining the inner wall of the annular passage and the second conduit defining the outer wall of the annular passage. The first conduit also defines an inner passage. Suitably, the liquid distribution device further comprises separating means dividing the annular passage into two separate chambers. Suitably, the separating means is a plate. Suitably, the plate is arranged such that the whole of the outer edge of the plate contacts the outer wall of the annular passage and the whole of the inner edge of the plate contacts the inner wall of the annular passage. Suitably, the plate is arranged such that the annular passage is divided into a fore chamber and a back chamber. Suitably, the plate is arranged at an incline relative to the longitudinal axis of the pipe arrangement. Suitably, the inlet conduit and the outlet conduit are in liquid flow distribution with the interior of the annular passage by means of openings in the wall of the second conduit. Suitably, the distal end of the inlet conduit is arranged to be in liquid distribution with the fore chamber and the distal end of the outlet conduit is arranged to be liquid distribution with the back chamber. Suitably, the number of liquid inlets, the number of liquid outlets and the number of pipe arrangements correspond in number to the plurality of textile dyeing machines. Suitably, each pipe arrangement is arranged to be in liquid distribution with one of the plurality of textile dyeing machines. A liquid distribution device in accordance with present invention may further comprise a pump, to circulate liquid between the inner passage and the annular passage of the pipe arrangement. Suitably, each pipe arrangement comprises a separate pump. The pump may be part of or separate from the liquid distribution device. In use of a liquid distribution device in accordance with the present invention, liquid may be transferred from a textile dyeing machine via the inner passage of the pipe arrangement, into the fore chamber of the annular passage, by means of the pump. The liquid suitably passes from the fore chamber of the annular passage, by means of the pump. The liquid suitably passes from the fore chamber to the liquid inlet conduit and from the liquid inlet conduit into the vessel. In the vessel, liquid from the plurality of textile dyeing machines is mixed. As the liquid level in the mixing chamber rises liquid exits the vessel via the liquid outlets into the liquid outlet conduits and then to the back chamber of the armular passage of the pipe arrangements. The liquid flows from the back chamber back into the textile dyeing machine. A second aspect of the present invention provides a method of distributing liquid to a plurality of textile dyeing machines, wherein, liquid is distributed to a vessel via liquid inlets and distributed from the vessel to the plurality of textile dyeing machines via liquid outlets. Suitably, the method comprises distributing liquid by means of the liquid inlets from a source to the vessel. The source may be any suitable reservoir, which is in liquid flow distribution with the liquid distribution device. The reservoir may be integral with or separate from the textile dyeing machine. Each of the liquid inlets may communicate with a single source or alternatively there may be a separate source for each liquid inlet. Suitably, the method according ..to the second aspect of the present invention further comprises mixing the liquid in the vessel. Suitably, each liquid inlet is arranged such that the liquid entering the vessel Creates a swirling motion and turbulent flow such that the liquid from each inlet is mixed together. Suitably, liquid from the vessel is distributed via each of the liquid outlets at the same time to deliver equal quantities of liquid to each of the textile dyeing machines. Suitably, the method of the second aspect of the present invention is carried out using the device of the first aspect of the invention. Suitably, the textile dyeing machine is a textile dyeing machine, preferably a yam dyeing machine. Preferred embodiments of the present invention advantageously provide a liquid distribution device that maintains equal liquid levels in two or more textile dyeing machines. When used for distributing liquid between two or more dyeing machines the device overcomes problems associated with unequal liquid quantities and reduces the likelihood of variations in colour and shade in the finished textile from each machine. The pipe arrangement may be of any suitably from such that suitably supply and return flow of liquid ins provided, in use, between the vessel and textile dyeing . Advantageously, the pipe arrangement of the present invention provides a compact device, which affords a simple arrangement with the vessel arranged intermediate the pipe arrangements and the pipe arrangements being arranged intermediate the corresponding plurality of textile dyeing machines. Advantageously, the arrangement of the liquid inlets on the vessel produce a swirling motion and turbulent liquid flow in the vessel to provide effective mixing of the incoming liquid to reduce the problem of variation in colour and shade of the dyed textile. An embodiment of the invention will now be described, by way of example only, with reference to the accompanying schematic drawings, in which: Figure 1 shows a perspective view of a liquid distribution device; Figure 2 shows a side view of the liquid distribution device of figure 1; Figure 3 shows apian view of the liquid distribution device of figures 1 and 2; and Figure 4 shows an end elevation view of the liquid distribution device of figures 1 to 3 Throughout the figures like reference numerals are used to refer to like features. Referring to Figures 1 to 4 there is shown a liquid distribution device that distributes liquid to two textile dyeing machines. A vessel 9 is arranged intermediate and to be in liquid distribution with two pipe arrangements 1, 2 Each of the pipe arrangements 1, 2 consists of an inner pipe 22, 23 and an outer pipe 24, 25 co-axially arranged such that an annular passage 15, 16 is formed between them. The outer wall of the inner pipe 22, 23 and the inner wall of the outer pipe 24, 25 define the walls of the annular passage 15, 16. The inner pipe 22, 23 defines an inner passage. A separation plate 3, 4 fits over the inner pipe 22, 23 to divide the annular passage 15,16 into two chambers 11, 12, 13, 14, a fore chamber 11, 12 and a back chamber 13, 14. The plate is inclined relative to the longitudinal axis of the pipe arrangement and is substantially elliptical in shape with the Outer edge and inner edge of the plate 3. 4 contacting the outer and inner surfaces of the annular passage 15,16 respectively. The fore chamber 11, 12 and the back chamber 13, 14 cormect respectively with the inlet pipe 5, 6 and outlet pipe 7, 8 to facilitate liquid flow to and fi-om the vessel 9. The vessel 9 is connected to two inlet pipes 5, 6 and two outlet pipes 7, 8. The proximal end 26, 27 of each inlet pipe 5, 6 is bent or has an elbow connection attached thereto, and extends into the vessel 9. The arrangement, of the proximal ends 26, 27 of the inlet pipes 5, 6, provides liquid flow in a direction corresponding to the bend or elbow angle so that the direction of liquid flow is directed away from the longitudinal axis of the inlet pipe 5, 6. The inlet pipes 5, 6 are arranged so as to avoid a head on collision of incoming liquid. The preferred change of flow direction corresponds to an angle of 33° from the longitudinal axis of the inlet pipe. The proximal ends 26, 27 of the inlet pipes 5, 6 are arranged facing each other on opposing sides of the vessel 9, so that the incoming liquid flow creates swirling motion and turbulent flow to encourage mixing of the incoming liquid. The distal end of each of the inlet pipes 5, 6 extends from the vessel and couples with the fore chamber 11,12 of corresponding the pipe arrangement 1, 2. Similarly, the distal end of each of the outlet pipes 7, 8 extends fi-om the vessel 9 and couples with the back chamber 13, 14 of the corresponding pipe arrangement 1,2. The outlet pipes 7, 8 are arranged on the same horizontal plane to provide synchronised exit of liquid from the vessel through the outlet pipes 7, 8. Bold arrows shown in figure 1 indicate the liquid flow cycle using the liquid flow distribution device of figures 1 to 4. To begin the dyeing cycle, liquid flows 10, 19 are each pump driven to the fore chambers 11, 12, respectively. Liquid is transported from each of the fore chambers 11, 12 through the inlet pipes 5, 6 into the vessel 9. The entry direction of the liquid flow creates a swirling motion and the liquid flow 10,19 are mixed and combined within the vessel 9. The mixed liquid is equally distributed between the outlets 28, 29 and is transported through the outlet pipes 7, 8 to the associated respective back chamber 13, 14 of the pipe arrangement 1, 2. Liquid flow 20, 21 exists the back chambers 13, 14 and is transferred to an associated dyeing machine (not shown) to facilitate the dyeing process. To complete the liquid flow cycle, liquid 17, 18 in the dyeing machine is drawn back into the pump suction via the inner pipe 22, 23 to complete the cycle. Subsequently, the pump (not shown) discharges the liquid flow 17, 18 in the opposite direction as flows 10, 19 through the fore chamber 15, 16 to begin the whole process again. The continuous flow cycle provides uniform colour and shade from each of the dyeing machines (now shown). Claims 1. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof is for exchanging of liquid between two containers, for textile dyeing. machines, which liquid distribution device comprises, a vessel connected with 4 conduits for liquid distribution, wherein when the device is arranged, for use, 2 conduits are arranged for flow into the vessel and the other 2 conduits are arranged for flow out from the vessel, such that in use of the device, incoming liquid from the plurality of different sources is mixed in the vessel and then re-distributed to the conduits arranged for flow out and into plurality of textile dyeing machines. 2. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 1, wherein the connection of 2 of the conduits for distribution of liquid and the vessel pass through the wall of the vessel. 3. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 1, wherein the connection of all of the conduits for distribution of liquid and the vessel pass through the wall of the vessel. 4. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 2 and 3, wherein the part of the conduit that pass through the vessel wall and located inside the vessel is elbowed. 5. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 4 wherein the change of direction of liquid flow effected by the elbow, defined relative to the longitudinal axis of the inlet conduit is greater than 0° and less than 90°. 6. A liquid distribution; device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 5 wherein the change of direction is 33°. 7. A liquid distribution.device for distributing liquid to textile dyeing machines and methods of distribution thereof according to any one of Claims 3 to 6. wherein the proximal: ends of each of the inlet conduits are arranged relative to each other such as to effect swirling motion and turbulent flow of the liquid entering and in the vessel, in use. 8. A liquid,distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 3 and one of claims 4 to 7, wherein the distal end of each inlet conduit and the distal end of each outlet conduit connect to a pipe arrangement comprising a first conduit and a second conduit arranged so that between them there is defined a passage and the inner surface of the second conduit defining the outer wall of the passage wherein separating means divide the passage into two separate chambers. 9. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 8, wherein each pair of outlet conduit and inlet is connected to a different pipe arrangement. 10. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 9, wherein the separating means divides the passage into a fore chamber and a back chamber. 11. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 8, 9 or 10, wherein the separating means is a plate arranged such that the outer edge of the plate contracts with the outer wall of the passage and the inner edge of the plate contracts with the inner wall of the passage. 12. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 11, wherein the plate is arranged at an incline relative to the longitudinal axis of the pipe arrangement. 13. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to any of the Claims 3 to 12. wherein the distal end of the inlet conduit is in liquid distribution with the fore chamber and the distal end of the outlet is in liquid distribution with the back chamber. 14. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to any of the preceding Claims 1 to 13, wherein the number of liquid inlet opening, the number of liquid outlet openings and,the number of pipe arrangements correspondence in number to the plurality of textile dyeing machines. 15. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to any one of Claims 10 to 14, wherein each pipe arrangement is in liquid distribution with a corresponding one of the plurality of textile dyeing machines. 16. Method of distributing liquid between two containers with the help of device as claimed in Claim 1, wherein liquid is pumped from each of the containers into the vessel, through the passages from one side of the each separating means and the connection conduits between the passages and the vessels, such that the liquid pumped from the two containers mixed and re-distributed substantially and simultaneously equal quantities to the two conduits connected to the vessel and to the other side of the each separating means in the passages of the containers. 17. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 16, wherein the liquid entering the vessel is mixed together in the vessel by a swirling motion and turbulent flow of the liquid. 18. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof substantially as described herein and with reference to the drawings hereof.

Full Text

The present invention relates to a.liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof, to a liquid distribution device that distributes liquid to two or more textile dyeing machines.
The present invention relates to a liquid distribution device for distributing liquid to a plurality of textile dyeing machines, which liquid di$tribution device comprises, a vessel having a'plurality of liquid inlet openings and liquid outlet openings in the vessel wall wherein when the device is arranged, for use, all of the outlet openings are above the inlet openings and the outlet openings are arranged on the same horizontal plane, such that in use of the device, incoming liquid from a plurality of different sources is mixed in the vessel and then distributed to the plurality of textile dyeing machines simultaneously and in substantially equal quantities through the outlet openings.
In the process of dyeing batches of yam packages it is common that the quantity of yam packages exceeds the capacity of a single dyeing machine. Therefore, it is necessary to divide the yam packages into smaller batch sizes. Each, smaller, batch may then be processed by a different dyeing machine. Variants in colour and shade often result between the batches when different dyeing machines have been used.
The present invention also relates to a method of distributing liquid to a plurality of textile dyeing machines, wherein liquid from a plurality of different sources is pumped into a vessel, via a plurality of inlet openings in the vessel wall, from a plurality of different sources and is mixed in the vessel, the liquid is then distributed from the vessel to the plurality of textile dyeing machines via a plurality of outlet openings in the vessel wall, substantially simultaneously and in substantially equal quantities, all of the inlet openings being located below the outlet openings and the outlet openings being in substantially the same horizontal plane.
To improve uniformity of colour and shade from the dying process it is common to joint the pipe-work system of two dyeing machines together by means of a coupling device. Traditional coupling methods and coupling devices are particularly suitable for use with machines fitted with extemal pipe-work.
According to a traditional coupling device, dyeing liquid can re-distributed between machines by coupling the pump discharge of a first machine to the dyeing vessel of a second machine and likewise coupling the pump discharge of the second machine to the dyeing vessel of the first machine.
A problem associated with this, traditional, coupling device is that the liquid level in both machines, relative to each other, becomes unequal as the dyeing process progresses. Therefore, the problems of variations in colour and shade may still occur in the yam packages in each machine.
The liquid levels in both machines may be equal at the beginning of the dyeing process. However, as the dyeing process progresses, the liquid level of one machine may vary from the other due to a variation in flow rate from the pumps supplying each machine. Typically, the problem is resolved by slowing down the flow rate to one machine or shutting down one of the pumps until the liquid level of both machines equalizes.
In an attempt to regulate the liquid levels, a frequency inverter may be used. Using a frequency inverter may reduce the problems associated with unequal liquid levels in each of the dyeing machines, but its use often results in

increased cost of the dyeing machine and may lead to the loss of competitiveness in the market.
Therefore, it is an object of preferred embodiments of the present invention to provide an improved liquid distribution device.
Accordingly, a first aspect of the present invention provides a liquid distribution device for distributing liquid to a plurality of textile dyeing machines, which liquid distribution device comprises a vessel having liquid inlets and liquid outlets, each of the liquid outlets being arranged, in use, to distribute liquid to the plurality of textile dyeing machines.
Suitably, the liquid distribution device is arranged such that, in each of the liquid outlets distribute liquid in substantially equal quantities to each of the plurality of textile dyeing machines. Preferably, the distribution of liquid to each of the plurality of textile dyeing machines occurs at the same time.
Suitably, the liquid outlets, being provided by openings in the vessel wall, are arranged such that, in use the liquid outlets are aligned on the same horizontal plane so as to effect even distribution of the liquid to the textile dyeing machines. Suitably, an outlet conduit connects to a liquid outlet. Preferably, a separate outlet conduit is connected to each of the plurality of liquid outlet. Preferably, the proximal end of the inlet conduit extends through the opening into the vessel.
The liquid inlets, being provided by openings in the vessel wall, may be arranged such that, in use, the liquid inlets are aligned on a horizontal plane. Suitably, an inlet conduit connects to a liquid inlet. Preferably, a separate inlet conduit is connected to each of the plurality of liquid inlets. The proximal end of the inlet conduit may connect to the vessel wall at the liquid inlet opening. Preferably, the proximal end of the inlet conduit extends through the opening into the vessel.
Suitably, the proximal end of the inlet conduit is provided with an elbow or bend. In use, the elbow or bend changes the direction of liquid flow into the vessel. Suitably, the angle of change of direction of the liquid flow corresponds with the angle defined by the elbow or bend. The angle of the elbow or bend, defined relative to the longitudinal axis of the inlet conduit may be an angle greater than 0° but less 90°. Suitably, the flow angle is at least 10°, preferably at least 15 °, more preferably at least 20° and particularly at least 30". Suitably the flow angle is less than 80°, preferably less than 70°, more preferably less than 60° and particularly less than 50°. Preferably, the liquid flow angle is 33°.
The liquid inlets are suitably arranged to avoid a head on collision of inlet liquid flow from each of the liquid inlets. Suitably, the proximal ends of the inlet conduits are arranged relative to each other such as to effect, in use, swirling motion and turbulent flow of the liquid entering and in the vessel.
Suitably, the liquid outlets are located above the liquid inlets when the liquid distribution device is arranged for use.
Suitably, the distal end of the inlet conduit and the outlet conduit are connected to a pipe arrangement, which pipe arrangement facilities liquid distribution between the plurality of textile dyeing machines and the vessel. Preferably, the liquid distribution device comprises a plurality of pipe arrangements. Advantageously, the number of pipe

arrangements corresponds in number to the plurality of textile dyeing machines. Suitably, one inlet conduit and one outlet conduit is connected to each pipe arrangement.
Suitably, each pipe arrangement comprises a first conduit and a second conduit.
Preferably, the first conduit and the second conduits are arranged co-axially. The co-axially arranged first and second conduits define an annular passage between them, with the first conduit defining the inner wall of the annular passage and the second conduit defining the outer wall of the annular passage. The first conduit also defines an inner passage.
Suitably, the liquid distribution device further comprises separating means dividing the annular passage into two separate chambers.
Suitably, the separating means is a plate. Suitably, the plate is arranged such that the whole of the outer edge of the plate contacts the outer wall of the annular passage and the whole of the inner edge of the plate contacts the inner wall of the annular passage. Suitably, the plate is arranged such that the annular passage is divided into a fore chamber and a back chamber. Suitably, the plate is arranged at an incline relative to the longitudinal axis of the pipe arrangement.
Suitably, the inlet conduit and the outlet conduit are in liquid flow distribution with the interior of the annular passage by means of openings in the wall of the second conduit.
Suitably, the distal end of the inlet conduit is arranged to be in liquid distribution with the fore chamber and the distal end of the outlet conduit is arranged to be liquid distribution with the back chamber.
Suitably, the number of liquid inlets, the number of liquid outlets and the number of pipe arrangements correspond in number to the plurality of textile dyeing machines. Suitably, each pipe arrangement is arranged to be in liquid distribution with one of the plurality of textile dyeing machines.
A liquid distribution device in accordance with present invention may further comprise a pump, to circulate liquid between the inner passage and the annular passage of the pipe arrangement. Suitably, each pipe arrangement comprises a separate pump. The pump may be part of or separate from the liquid distribution device.
In use of a liquid distribution device in accordance with the present invention, liquid may be transferred from a textile dyeing machine via the inner passage of the pipe arrangement, into the fore chamber of the annular passage, by means of the pump. The liquid suitably passes from the fore chamber of the annular passage, by means of the pump. The liquid suitably passes from the fore chamber to the liquid inlet conduit and from the liquid inlet conduit into the vessel. In the vessel, liquid from the plurality of textile dyeing machines is mixed. As the liquid level in the mixing chamber rises liquid exits the vessel via the liquid outlets into the liquid outlet conduits and then to the back chamber of the armular passage of the pipe arrangements. The liquid flows from the back chamber back into the textile dyeing machine.
A second aspect of the present invention provides a method of distributing liquid to a plurality of textile dyeing machines, wherein, liquid is distributed to a vessel via liquid inlets and distributed from the vessel to the plurality of textile dyeing machines via liquid outlets.
Suitably, the method comprises distributing liquid by means of the liquid inlets from a source to the vessel. The source may be any suitable reservoir, which is in liquid flow distribution with the liquid distribution device. The reservoir may be integral with or separate from the textile dyeing machine. Each of the liquid inlets may communicate with a single source or alternatively there may be a separate source for each liquid inlet.
Suitably, the method according ..to the second aspect of the present invention further comprises mixing the liquid in the vessel. Suitably, each liquid inlet is arranged such that the liquid entering the vessel Creates a swirling motion and turbulent flow such that the liquid from each inlet is mixed together.
Suitably, liquid from the vessel is distributed via each of the liquid outlets at the same time to deliver equal quantities of liquid to each of the textile dyeing machines.
Suitably, the method of the second aspect of the present invention is carried out using the device of the first aspect of the invention.
Suitably, the textile dyeing machine is a textile dyeing machine, preferably a yam dyeing machine.
Preferred embodiments of the present invention advantageously provide a liquid distribution device that maintains equal liquid levels in two or more textile dyeing machines. When used for distributing liquid between two or more dyeing machines the device overcomes problems associated with unequal liquid quantities and reduces the likelihood of variations in colour and shade in the finished textile from each machine.
The pipe arrangement may be of any suitably from such that suitably supply and return flow of liquid ins provided, in use, between the vessel and textile dyeing . Advantageously, the pipe arrangement of the present invention provides a compact device, which affords a simple arrangement with the vessel arranged intermediate the pipe arrangements and the pipe arrangements being arranged intermediate the corresponding plurality of textile dyeing machines.
Advantageously, the arrangement of the liquid inlets on the vessel produce a swirling motion and turbulent liquid flow in the vessel to provide effective mixing of the incoming liquid to reduce the problem of variation in colour and shade of the dyed textile.
An embodiment of the invention will now be described, by way of example only, with reference to the accompanying schematic drawings, in which:
Figure 1 shows a perspective view of a liquid distribution device;
Figure 2 shows a side view of the liquid distribution device of figure 1;
Figure 3 shows apian view of the liquid distribution device of figures 1 and 2; and
Figure 4 shows an end elevation view of the liquid distribution device of figures 1 to 3
Throughout the figures like reference numerals are used to refer to like features.
Referring to Figures 1 to 4 there is shown a liquid distribution device that distributes liquid to two textile dyeing machines.
A vessel 9 is arranged intermediate and to be in liquid distribution with two pipe arrangements 1, 2 Each of the pipe arrangements 1, 2 consists of an inner pipe 22, 23 and
an outer pipe 24, 25 co-axially arranged such that an annular passage 15, 16 is formed between them. The outer wall of the inner pipe 22, 23 and the inner wall of the outer pipe 24, 25 define the walls of the annular passage 15, 16. The inner pipe 22, 23 defines an inner passage.
A separation plate 3, 4 fits over the inner pipe 22, 23 to divide the annular passage 15,16 into two chambers 11, 12, 13, 14, a fore chamber 11, 12 and a back chamber 13, 14. The plate is inclined relative to the longitudinal axis of the pipe arrangement and is substantially elliptical in shape with the Outer edge and inner edge of the plate 3. 4 contacting the outer and inner surfaces of the annular passage 15,16 respectively.
The fore chamber 11, 12 and the back chamber 13, 14 cormect respectively with the inlet pipe 5, 6 and outlet pipe 7, 8 to facilitate liquid flow to and fi-om the vessel 9.
The vessel 9 is connected to two inlet pipes 5, 6 and two outlet pipes 7, 8. The proximal end 26, 27 of each inlet pipe 5, 6 is bent or has an elbow connection attached thereto, and extends into the vessel 9. The arrangement, of the proximal ends 26, 27 of the inlet pipes
5, 6, provides liquid flow in a direction corresponding to the bend or elbow angle so that
the direction of liquid flow is directed away from the longitudinal axis of the inlet pipe 5,
6. The inlet pipes 5, 6 are arranged so as to avoid a head on collision of incoming liquid.
The preferred change of flow direction corresponds to an angle of 33° from the
longitudinal axis of the inlet pipe. The proximal ends 26, 27 of the inlet pipes 5, 6 are
arranged facing each other on opposing sides of the vessel 9, so that the incoming liquid
flow creates swirling motion and turbulent flow to encourage mixing of the incoming
liquid.
The distal end of each of the inlet pipes 5, 6 extends from the vessel and couples with the fore chamber 11,12 of corresponding the pipe arrangement 1, 2.
Similarly, the distal end of each of the outlet pipes 7, 8 extends fi-om the vessel 9 and couples with the back chamber 13, 14 of the corresponding pipe arrangement 1,2.
The outlet pipes 7, 8 are arranged on the same horizontal plane to provide synchronised exit of liquid from the vessel through the outlet pipes 7, 8.
Bold arrows shown in figure 1 indicate the liquid flow cycle using the liquid flow distribution device of figures 1 to 4.
To begin the dyeing cycle, liquid flows 10, 19 are each pump driven to the fore chambers 11, 12, respectively. Liquid is transported from each of the fore chambers 11, 12 through the inlet pipes 5, 6 into the vessel 9. The entry direction of the liquid flow creates a swirling motion and the liquid flow 10,19 are mixed and combined within the vessel 9.
The mixed liquid is equally distributed between the outlets 28, 29 and is transported through the outlet pipes 7, 8 to the associated respective back chamber 13, 14 of the pipe arrangement 1, 2. Liquid flow 20, 21 exists the back chambers 13, 14 and is transferred to an associated dyeing machine (not shown) to facilitate the dyeing process.
To complete the liquid flow cycle, liquid 17, 18 in the dyeing machine is drawn back into the pump suction via the inner pipe 22, 23 to complete the cycle. Subsequently, the pump (not shown) discharges the liquid flow 17, 18 in the opposite direction as flows 10, 19 through the fore chamber 15, 16 to begin the whole process again. The continuous flow cycle provides uniform colour and shade from each of the dyeing machines (now shown).

Claims
1. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof is for exchanging of liquid between two containers, for textile dyeing. machines, which liquid distribution device comprises, a vessel connected with 4 conduits for liquid distribution, wherein when the device is arranged, for use, 2 conduits are arranged for flow into the vessel and the other 2 conduits are arranged for flow out from the vessel, such that in use of the device, incoming liquid from the plurality of different sources is mixed in the vessel and then re-distributed to the conduits arranged for flow out and into plurality of textile dyeing machines.
2. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 1, wherein the connection of 2 of the conduits for distribution of liquid and the vessel pass through the wall of the vessel.
3. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 1, wherein the connection of all of the conduits for distribution of liquid and the vessel pass through the wall of the vessel.

4. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 2 and 3, wherein the part of the conduit that pass through the vessel wall and located inside the vessel is elbowed.
5. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 4 wherein the change of direction of liquid flow effected by the elbow, defined relative to the longitudinal axis of the inlet conduit is greater than 0° and less than 90°.
6. A liquid distribution; device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 5 wherein the change of direction is 33°.
7. A liquid distribution.device for distributing liquid to textile dyeing machines and methods of distribution thereof according to any one of Claims 3 to 6. wherein the proximal: ends of each of the inlet conduits are arranged relative to each other such as to effect swirling motion and turbulent flow of the liquid entering and in the vessel, in use.
8. A liquid,distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 3 and one of claims 4
to 7, wherein the distal end of each inlet conduit and the distal end of each outlet conduit connect to a pipe arrangement comprising a first conduit and a second conduit arranged so that between them there is defined a passage and the inner surface of the second conduit defining the outer wall of the passage wherein separating means divide the passage into two separate chambers.
9. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 8, wherein each pair of outlet conduit and inlet is connected to a different pipe arrangement.
10. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 9, wherein the separating means divides the passage into a fore chamber and a back chamber.
11. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 8, 9 or 10, wherein the separating means is a plate arranged such that the outer edge of the plate contracts with the outer wall of the passage and the inner edge of the plate contracts with the inner wall of the passage.

12. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 11, wherein the plate is arranged at an incline relative to the longitudinal axis of the pipe arrangement.
13. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to any of the Claims 3 to 12. wherein the distal end of the inlet conduit is in liquid distribution with the fore chamber and the distal end of the outlet is in liquid distribution with the back chamber.
14. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to any of the preceding Claims 1 to 13, wherein the number of liquid inlet opening, the number of liquid outlet openings and,the number of pipe arrangements correspondence in number to the plurality of textile dyeing machines.
15. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to any one of Claims 10 to 14, wherein each pipe arrangement is in liquid distribution with a corresponding one of the plurality of textile dyeing machines.
16. Method of distributing liquid between two containers with the help of device as claimed in Claim 1, wherein liquid is pumped from each of the containers into the vessel, through the passages from one side of the each separating means and the connection conduits between the passages and the vessels, such
that the liquid pumped from the two containers mixed and re-distributed substantially and simultaneously equal quantities to the two conduits connected to the vessel and to the other side of the each separating means in the passages of the containers.
17. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof according to Claim 16, wherein the liquid entering the vessel is mixed together in the vessel by a swirling motion and turbulent flow of the liquid.
18. A liquid distribution device for distributing liquid to textile dyeing machines and methods of distribution thereof substantially as described herein and with reference to the drawings hereof.

Documents:

324-del-2003-abstract.pdf

324-del-2003-assignment.pdf

324-del-2003-claims.pdf

324-del-2003-correspondence-others.pdf

324-del-2003-correspondence-po.pdf

324-del-2003-description (complete).pdf

324-del-2003-drawings.pdf

324-del-2003-form-1.pdf

324-del-2003-form-13.pdf

324-del-2003-form-18.pdf

324-del-2003-form-2.pdf

324-del-2003-form-3.pdf

324-del-2003-form-5.pdf

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Patent Number

227121

Indian Patent Application Number

324/DEL/2003

PG Journal Number

04/2009

Publication Date

23-Jan-2009

Grant Date

02-Jan-2009

Date of Filing

21-Mar-2003

Name of Patentee

Falmer Investments Ltd.

Applicant Address

3RD FLOOR, OMAR HODGE BUILDING, WICKHAMS CAY I, P.O.BOX 362, ROAD TOWN, TORTOLA, BRITISH VIRGIN ISLANDS

Inventors:

#	Inventor's Name	Inventor's Address
1	DR.TSUI TAK MING WILLIAM	16 WOODLANDS ROAD, SALE, CHESHIRE, M33 2DW, U.K

PCT International Classification Number

B05B 1/14

PCT International Application Number

N/A

PCT International Filing date

PCT Conventions:

#	PCT Application Number	Date of Convention	Priority Country
1	0227445.4	2002-11-25	U.K.
2	091135310	2002-12-05	U.K.