Title of Invention	WARP YARN CLAMPING DEVICE
Abstract	Warp Yarn clampng device, for harnessing kinetic energy in wind flow comprising of a housing on the ground and supporting thrust bearing with gear at its top, shaft mounted in thrust bearing at bottom end mounted on its top end, hollow pole surrounding shaft fixed to the gear of thrust bearing at its lower end and rotably connected to bearing provided at the top end of the pole in an equally spaced apart manner all adopted for roatating along with pole in the same horizontal plane due to wind flow striking the vanes, each of the vanes consisting of a rigid frame having opening for window, flap hingedly provided to frame for each window/opening forming self opening and closing, unidirectional flap valve, out put shaft fixed to gear of thrust bearing, for transmitting rotational mechanical energy, obtained by harnessing kinetic energy in the wind through rotating vanes along with pole.

Title of Invention

WARP YARN CLAMPING DEVICE

Abstract

Warp Yarn clampng device, for harnessing kinetic energy in wind flow comprising of a housing on the ground and supporting thrust bearing with gear at its top, shaft mounted in thrust bearing at bottom end mounted on its top end, hollow pole surrounding shaft fixed to the gear of thrust bearing at its lower end and rotably connected to bearing provided at the top end of the pole in an equally spaced apart manner all adopted for roatating along with pole in the same horizontal plane due to wind flow striking the vanes, each of the vanes consisting of a rigid frame having opening for window, flap hingedly provided to frame for each window/opening forming self opening and closing, unidirectional flap valve, out put shaft fixed to gear of thrust bearing, for transmitting rotational mechanical energy, obtained by harnessing kinetic energy in the wind through rotating vanes along with pole.

Full Text	FORM - 2 THE PATENTS ACT, 1970 (39 of 1970) COMPLETE SPECIFICATION (See section 10; rule 13) WARP YARN CLAMPING DEVICE" PATEL BURJOR DARABSHA An Indian National having his address at 408,"Sampada", Shreemali Society Mithakhali Six Road, Navrangpura, Ahmedabad-380 009,Gujarat State, India The following specification particularly describes the invention and the manner in which it is to be performed: BACKGROUND OF THE INVENTION This invention relates to thread clamping device used to hold warp yarn firmly during warp drawing process with even tension. The textile warp yarn wound beam in multiples of 1000 to 20000. Each yarn is an individual thread wound evenly in a sheet form, close to each other's without overlapping. The entire warp beam is mounted on the weaving machine for weaving of the cloth. The warp changing process takes place when the running warp beam on the weaving machine is run out (over), and the new warp Beam full of new warps (Threads) is to be replaced. This replacement is by means of a new drawn beam with healds, Reads, droppess etc. Hand splicing remains with this process. Automatic warp tying (knotting) remains individually to the new thread. The Automatic warp-tying instrument consists of a tying apparatus and Dressing frame. The tying process takes place at the back of the loom, or away from the loom outside the weaving department on a stationary stand. The Dressing frame is placed parallel to the backrest of the loom on while a new warp Beam is intended to be knotted, after exchanging the warp beam with a new. The dressing frame is provided with warp yarn clamping device fitted in parallel, keeping suitable gap for the rack on which the tying apparatus will work. Two such devices are fitted on the lower level and other 2 clamps are fitted 1-inches higher than the lower clamps. The new beam warp is then taken over the lower clamps rails, fitted to the placed dressing frame in a parallel sheet form by clamping the full warp sheet on a lease clamp and pulled over. This entire warp sheet, as wound by the warper or beamer as per the pattern or plain may be, is then clamped in the warp-clamping device and locked. Similarly the other end of the warp is also clamped in the in 2 the similar clamping device provided in the frame with space left for the machines to run in between. The new warp beam dressing is over now, the run out beam warp are dressed the same way on the upper clamping device, by pulling it from the looms. The dressing part is over, after necessary brushing and combing. The tying apparatus is placed on the toothed reck provided between the yarn clamping devices on which both the layers of warp sheets (New and old) are dressed and clamped. The tying apparatus then picks up one thread from the upper (remains of the previous beam) and one thread from the bottom layer (New warp beam) and knots them together. The process repeats in a predefined sequence, from the warps at a speed up to 600 knots per minute. After the entire warp sheet is knotted end to end, the clamp locks are opened and the knotted warps are stretched, thus the entire number of new thread is knotted to old threads individually. The weaving machine starts weaving the cloth again with new beam warps. This process minimizes the down time of a weaving. The new beam wrap is then taken over the lower clamps rails, fitted to the placed dressing frame in a parallel sheet form by clamping the full warp sheet on a lease clamp and pulled over. This entire warp sheet, as wound by the warper or beamer as per the pattern or plain may be, is then is clamped in the warp During the weaving of yarn it is required that warp should be remain in even tension and thereby providing proper knotting as well as smooth effect to the cloth. Known clamping devices serve to hold the warp yarns during the weaving of cloth on weaving machine but there are some disadvantages associated with them: 1. Prior Clamping devices have failed to hold the warp firmly and did not provide even tension to the warp yarn which resulted into uneven knotting process and tendering of warp yarns as well as loosening of the threads. 2. Another disadvantage of prior known Clamping device is that due to uneven knotting they do not give smooth surface to the cloth. 3. Another disadvantage of prior known clamping device is that they are only used to hold thin yarn only and they have failed to hold the thick yarn like denim. OBJECTS OF THE INVENTION The main object is to overcome the above disadvantages, this warp yarn clamping device is invented, which holds the warp yarns firmly and provide the sufficient tension in such a way that knotting will be remain even and also prevent tendering of the yarn as well as provide smooth surface to the cloth. This novel device is also used for the weaving of thick yarn like Denim etc. The further object of this invention is to provide a novel warp yarn-clamping device to hold the yarn firmly with equal and even tension through out length of the beam, at the time of knotting for weaving cloths. The further object of the invention is that even knotting of the yarn provides the smooth surface to the yarn and thereby reduces quantity of the damage cloths. BRIEF DESCRIPTION OF THE FIGURES The invention will now be described with reference to accompanying drawings, wherein FIG. 1 is a schematic drawing of a warp yarn clamping device with a yarn tensioning device comprising of said parts, C clamps [1], Rubber Grommets [2], Oval shaped steel Bar [3], Dressing Frame [4]. 4 FIG. 2 illustrates a particular design of the tensioning device containing the two C channels in conjunction with a dressing frame. FIG. 3 is a schematic of the position of the C clamps [1a, 1b] in the device as shown in FIGS. 1 and 2 in normal operation. FIG. 4 schematic shows a tensioning of fabric, in normal operation during the tensioning operation. FIG. 5 schematic showing tensioning of the fabric with new clamping device notched key [5], yarn [6]. DETAIL DESCRIPTION OF THE INVENTION As the invention relates to warp yarn-clamping device comprises of C shaped clamps [1a, 1b], fixed on dressing frame [4] used for carrying the warp beam through out its length which has grooves on the inner side for fixing; the special type of rubber mounted on rubber grommets [2] and oval shaped steel bars [3] with notched key [5] are used to accommodate within To keep the yarn firmed within the entire length of the clamps [1 a, 1 b]. The proposed warp yarn clamping device is designed to press the entire warp sheets in parallel and firm conditions. This special 'C shaped clamp [1a, 1b] is made up of specified alloys and is available with wide range of working widths and lengths according to the requirement. The said clamps [1a, 1b] are comprised of special kind of rubber, mounted on rubber grommets [2], on both inner walls of clamp rails. The said clamps [1a, 1b], mounted on dressing frame [4], allow the warp yarn to pass through its hollow space within the entire its length and hold the warp yarn at the time of knotting firmly. The said fixation of the rubber [2] within the inner sides of the clamp [1a, 1b] provide firm grip to the most slippery and fine warp [6]. To keep the yarn firmed 5 within the entire length of the clamp, oval shaped steel bars [3] with notched key are used to accommodate within the space of clamping device and get placed within the space provided within the clamp. The Dressing frame [4] is placed parallel to the backrest of the loom on which a new warp Beam is to be knotted. The dressing frame [4] is provided with warp yarn clamping device fitted in parallel, keeping suitable gap for the rack on which the tying apparatus will work. Two numbers of such devices are fitted on the lower level [1a] and two numbers on 1-inch higher level than the lower clamps [1b]. The new beam warp is then taken over the lower clamps rails, fitted to the placed dressing frame [4] in a parallel sheet form by clamping the full warp sheet on a lease clamp and pulled over. This entire warp sheet as wound by the warper or beamer as per the pattern or plain is then clamped in the warp-clamping device [1a, 1b] and locked with the oval bar [3] with notched key. Similarly the other end of the warp is also clamped in the in the similar clamping device provided in the frame with space left for the machines to run in between. After firm fixation of the warp yarns within the entire length of the clamps, knotting is made with the help of knotting machine, which provides smooth and fine surface after the knotting. The layer of yarn spread over the width is to be placed on said clamp [1a, 1b], an oval shaped steel bar [3] as per the width of clamp/warp sheet, is placed on top of the yarn sheet in vertical position and pressed into the C-groove of the C clamp [1a, 1b]. Once the iron bar [3] is settled in the 'C clamp [1a, 1b] the bar is then turned with a notched key [5] to horizontal position. Once the new warp beam dressing is over now, the run out beam warp are dressed the same way on the upper clamping device [1b], by pulling it from the looms. The dressing part is over, after necessary brushing and combing. The is placed on the toothed rack provided between the yarn clamping devices on which both the layers of warp sheets (New and old) are dressed and clamped. The tying apparatus then picks up one thread from the upper (remains of the previous beam) and one thread from the bottom layer (New warp beam) and knots them together. The process repeats in a predefined sequence, from the warps at a speed up to 600 knots per minute or as specified. After the entire warp sheet is knotted end to end, the clamp locks are opened and the knotted warps are stretched, thus the entire number of new thread is knotted to old threads individually. The weaving machine starts weaving the cloth again with new beam warps. This process minimizes the down time of a weaving. I Claim: - 1. The warp yarn-clamping device comprises of C shaped clamps fixed on dressing frame used for carrying the warp beam through out its length which has grooves on the inner side for fixing; the special type of rubber mounted on rubber grommets and oval shaped steel bars with notched key are used to accommodate within to keep the yarn firmed within the entire length of the clamps. 2. The warp yarn clamping device as herein described and illustrated in the figures of the accompanying drawings. Dated this 9th day of October 2006. To, The Controller of Patents, The Patent Office, At Mumbai. 8 ABSTRACT Warp Yarn clamping device,, for harnessing kinetic energy in wind flow comprising of a housing on the ground and supporting thrust bearing with gear at its top, shaft mounted in thrust bearing at bottom end mounted on its top end, hollow pole surrounding shaft fixed to the gear of thrust bearing at its lower end and rotably connected to bearing provided at the top end of the pole in an equally spaced apart manner all adopted for rotating along with pole in the same horizontal plane due to wind flow striking the vanes, each of the vanes consisting of a rigid frame having opening for window, flap hingedly provided to frame for each window/opening forming self opening and closing , unidirectional flap valve, out put shaft fixed to gear of thrust bearing, for transmitting rotational mechanical energy, obtained by harnessing kinetic energy in the wind through rotating vanes along with pole.

Full Text

FORM - 2
THE PATENTS ACT, 1970 (39 of 1970)
COMPLETE SPECIFICATION (See section 10; rule 13)
WARP YARN CLAMPING DEVICE"
PATEL BURJOR DARABSHA
An Indian National having his address at
408,"Sampada", Shreemali Society
Mithakhali Six Road, Navrangpura, Ahmedabad-380 009,Gujarat State, India
The following specification particularly describes the invention and the manner in which it is to be performed:

BACKGROUND OF THE INVENTION
This invention relates to thread clamping device used to hold warp yarn firmly during warp drawing process with even tension. The textile warp yarn wound beam in multiples of 1000 to 20000. Each yarn is an individual thread wound evenly in a sheet form, close to each other's without overlapping. The entire warp
beam is mounted on the weaving machine for weaving of the cloth.
The warp changing process takes place when the running warp beam on the weaving machine is run out (over), and the new warp Beam full of new warps (Threads) is to be replaced. This replacement is by means of a new drawn beam with healds, Reads, droppess etc. Hand splicing remains with this process. Automatic warp tying (knotting) remains individually to the new thread.
The Automatic warp-tying instrument consists of a tying apparatus and Dressing frame. The tying process takes place at the back of the loom, or away from the loom outside the weaving department on a stationary stand.
The Dressing frame is placed parallel to the backrest of the loom on while a new warp Beam is intended to be knotted, after exchanging the warp beam with a new.
The dressing frame is provided with warp yarn clamping device fitted in parallel, keeping suitable gap for the rack on which the tying apparatus will work. Two such devices are fitted on the lower level and other 2 clamps are fitted 1-inches higher than the lower clamps.
The new beam warp is then taken over the lower clamps rails, fitted to the placed dressing frame in a parallel sheet form by clamping the full warp sheet on a lease clamp and pulled over. This entire warp sheet, as wound by the warper or beamer as per the pattern or plain may be, is then clamped in the warp-clamping device and locked. Similarly the other end of the warp is also clamped in the in
2

the similar clamping device provided in the frame with space left for the machines to run in between.
The new warp beam dressing is over now, the run out beam warp are dressed the same way on the upper clamping device, by pulling it from the looms.
The dressing part is over, after necessary brushing and combing. The tying apparatus is placed on the toothed reck provided between the yarn clamping devices on which both the layers of warp sheets (New and old) are dressed and clamped. The tying apparatus then picks up one thread from the upper (remains of the previous beam) and one thread from the bottom layer (New warp beam) and knots them together.
The process repeats in a predefined sequence, from the warps at a speed up to 600 knots per minute. After the entire warp sheet is knotted end to end, the clamp locks are opened and the knotted warps are stretched, thus the entire number of new thread is knotted to old threads individually.
The weaving machine starts weaving the cloth again with new beam warps. This process minimizes the down time of a weaving.
The new beam wrap is then taken over the lower clamps rails, fitted to the placed dressing frame in a parallel sheet form by clamping the full warp sheet on a lease clamp and pulled over. This entire warp sheet, as wound by the warper or beamer as per the pattern or plain may be, is then is clamped in the warp
During the weaving of yarn it is required that warp should be remain in even tension and thereby providing proper knotting as well as smooth effect to the cloth. Known clamping devices serve to hold the warp yarns during the weaving of cloth on weaving machine but there are some disadvantages associated with them:

1. Prior Clamping devices have failed to hold the warp firmly and did not provide even tension to the warp yarn which resulted into uneven knotting process and tendering of warp yarns as well as loosening of the threads.
2. Another disadvantage of prior known Clamping device is that due to uneven knotting they do not give smooth surface to the cloth.
3. Another disadvantage of prior known clamping device is that they are only used to hold thin yarn only and they have failed to hold the thick yarn like denim.
OBJECTS OF THE INVENTION
The main object is to overcome the above disadvantages, this warp yarn clamping device is invented, which holds the warp yarns firmly and provide the sufficient tension in such a way that knotting will be remain even and also prevent tendering of the yarn as well as provide smooth surface to the cloth. This novel device is also used for the weaving of thick yarn like Denim etc.
The further object of this invention is to provide a novel warp yarn-clamping device to hold the yarn firmly with equal and even tension through out length of the beam, at the time of knotting for weaving cloths.
The further object of the invention is that even knotting of the yarn provides the smooth surface to the yarn and thereby reduces quantity of the damage cloths.
BRIEF DESCRIPTION OF THE FIGURES
The invention will now be described with reference to accompanying drawings,
wherein
FIG. 1 is a schematic drawing of a warp yarn clamping device with a yarn
tensioning device comprising of said parts, C clamps [1], Rubber Grommets [2],
Oval shaped steel Bar [3], Dressing Frame [4].
4

FIG. 2 illustrates a particular design of the tensioning device containing the two C channels in conjunction with a dressing frame.
FIG. 3 is a schematic of the position of the C clamps [1a, 1b] in the device as shown in FIGS. 1 and 2 in normal operation.
FIG. 4 schematic shows a tensioning of fabric, in normal operation during the tensioning operation.
FIG. 5 schematic showing tensioning of the fabric with new clamping device notched key [5], yarn [6].
DETAIL DESCRIPTION OF THE INVENTION
As the invention relates to warp yarn-clamping device comprises of C shaped clamps [1a, 1b], fixed on dressing frame [4] used for carrying the warp beam through out its length which has grooves on the inner side for fixing; the special type of rubber mounted on rubber grommets [2] and oval shaped steel bars [3] with notched key [5] are used to accommodate within To keep the yarn firmed within the entire length of the clamps [1 a, 1 b].
The proposed warp yarn clamping device is designed to press the entire warp sheets in parallel and firm conditions. This special 'C shaped clamp [1a, 1b] is made up of specified alloys and is available with wide range of working widths and lengths according to the requirement. The said clamps [1a, 1b] are comprised of special kind of rubber, mounted on rubber grommets [2], on both inner walls of clamp rails. The said clamps [1a, 1b], mounted on dressing frame [4], allow the warp yarn to pass through its hollow space within the entire its length and hold the warp yarn at the time of knotting firmly.
The said fixation of the rubber [2] within the inner sides of the clamp [1a, 1b] provide firm grip to the most slippery and fine warp [6]. To keep the yarn firmed
5

within the entire length of the clamp, oval shaped steel bars [3] with notched key are used to accommodate within the space of clamping device and get placed within the space provided within the clamp.
The Dressing frame [4] is placed parallel to the backrest of the loom on which a new warp Beam is to be knotted. The dressing frame [4] is provided with warp yarn clamping device fitted in parallel, keeping suitable gap for the rack on which the tying apparatus will work. Two numbers of such devices are fitted on the lower level [1a] and two numbers on 1-inch higher level than the lower clamps [1b].
The new beam warp is then taken over the lower clamps rails, fitted to the placed dressing frame [4] in a parallel sheet form by clamping the full warp sheet on a lease clamp and pulled over. This entire warp sheet as wound by the warper or beamer as per the pattern or plain is then clamped in the warp-clamping device [1a, 1b] and locked with the oval bar [3] with notched key. Similarly the other end of the warp is also clamped in the in the similar clamping device provided in the frame with space left for the machines to run in between.
After firm fixation of the warp yarns within the entire length of the clamps, knotting is made with the help of knotting machine, which provides smooth and fine surface after the knotting.
The layer of yarn spread over the width is to be placed on said clamp [1a, 1b], an oval shaped steel bar [3] as per the width of clamp/warp sheet, is placed on top of the yarn sheet in vertical position and pressed into the C-groove of the C clamp [1a, 1b]. Once the iron bar [3] is settled in the 'C clamp [1a, 1b] the bar is then turned with a notched key [5] to horizontal position.
Once the new warp beam dressing is over now, the run out beam warp are dressed the same way on the upper clamping device [1b], by pulling it from the looms.

The dressing part is over, after necessary brushing and combing. The is placed on the toothed rack provided between the yarn clamping devices on which both the layers of warp sheets (New and old) are dressed and clamped. The tying apparatus then picks up one thread from the upper (remains of the previous beam) and one thread from the bottom layer (New warp beam)
and knots them together.
The process repeats in a predefined sequence, from the warps at a speed up to 600 knots per minute or as specified. After the entire warp sheet is knotted end to end, the clamp locks are opened and the knotted warps are stretched, thus the entire number of new thread is knotted to old threads individually.
The weaving machine starts weaving the cloth again with new beam warps. This process minimizes the down time of a weaving.

I Claim: -
1. The warp yarn-clamping device comprises of C shaped clamps fixed on dressing frame used for carrying the warp beam through out its length which has grooves on the inner side for fixing; the special type of rubber mounted on rubber grommets and oval shaped steel bars with notched key are used to accommodate within to keep the yarn firmed within the entire length of the clamps.
2. The warp yarn clamping device as herein described and illustrated in the figures of the accompanying drawings.
Dated this 9th day of October 2006.

To,
The Controller of Patents, The Patent Office, At Mumbai.
8

ABSTRACT
Warp Yarn clamping device,, for harnessing kinetic energy in wind flow comprising of a housing on the ground and supporting thrust bearing with gear at its top, shaft mounted in thrust bearing at bottom end mounted on its top end, hollow pole surrounding shaft fixed to the gear of thrust bearing at its lower end and rotably connected to bearing provided at the top end of the pole in an equally spaced apart manner all adopted for rotating along with pole in the same horizontal plane due to wind flow striking the vanes, each of the vanes consisting of a rigid frame having opening for window, flap hingedly provided to frame for each window/opening forming self opening and closing , unidirectional flap valve, out put shaft fixed to gear of thrust bearing, for transmitting rotational mechanical energy, obtained by harnessing kinetic energy in the wind through rotating vanes along with pole.

WARP YARN CLAMPING DEVICE

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