US3707853A - Device for producing double-sided looped cloth upon crochet galloon machines - Google Patents

Device for producing double-sided looped cloth upon crochet galloon machines Download PDF

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US3707853A
US3707853A US00664388A US3707853DA US3707853A US 3707853 A US3707853 A US 3707853A US 00664388 A US00664388 A US 00664388A US 3707853D A US3707853D A US 3707853DA US 3707853 A US3707853 A US 3707853A
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sinkers
needles
threads
recesses
pressure
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G Roscher
H Lindner
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B23/00—Flat warp knitting machines
    • D04B23/08—Flat warp knitting machines with provision for incorporating pile threads

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  • ABSTRACT Crochet galloon machines are improved for the pur- [22] Filed: Aug. 30, 1967 pose of making thereon double-sided looped cloth which does not have portions devoid of loops. This is achieved by providing the rear and/or the front loop holders at the locations of the weft yarn pressure sinkers with slots, recesses or milled portions. The sinkers are vertically shifted and guided in these recesses.
  • SHEET 3 [IF 4 DEVICE FOR PRODUCING DOUBLE-SIDED LOOPED CLOTH UPON CROCHET GALLOON MACHINES This invention relates to a device for producing double-sided looped cloth having no loop-free portions upon crochet galloon machines. These machines were used initially only to produce trimmings and braids.
  • An object of the present invention is, therefore, to provide a device which while retaining the general features of prior art procedures and without affecting the output of the machine, will make possible the manufacture of double-sided looped cloth having no loop-free portions.
  • Another object of the invention consists in the provision of a device of this type wherein the crochet threads of the base from which the loops promect, are not movable any more relatively to each other in the direction of the weft.
  • the rear and/or front loop holders with longitudinal recesses, such as slots, milled portions or the like at the location of the weft yarn pressure sinkers, the pressure sinkers being so mounted in these recesses that they can be shifted vertically without interfering with the formation of the loops.
  • These slots and milled portions provide at the same time a good guide for the pressure sinkers.
  • the loop holders are not eliminated any more in the location of the pressure sinkers but extend through the entire width of the machine.
  • each crochet needle is provided with a weft yarn guide and a pressure sinker as well as a front and rear loop holder.
  • FIG. 1 is a vertical section through a device of the present invention which uses combined pressure sinkers for the weft and the rear threads the needles being shown as located in their retracted end position.
  • FIG. 2 is a vertical section through a device of the present invention having separately driven pressure sinkers for the weft, the needles being also located in their retracted end position.
  • FIG. 3 is a stitch loop diagram.
  • FIG. 4 is a section along the line IV IV of FIG. 3.
  • FIG. 5 is a perspective view of the device of the present invention.
  • FIG. 1 shows a crochet galloon machine of the present invention used for making double-sided looped cloth and having the usual operating needles, namely, hooked needles 1 and slide needles 2.
  • the hooked needles 1 are fixed to a common rod 3, while needles 2 are fixed to a rod 4.
  • a cam 6 actuating the rod 3 is used to reciprocate the needles 1, while a cam 5 actuating the rod 4 is used to reciprocate the needles 2.
  • Loop holders 7 and 8 which are immovable, are used for forming the double-sided looped cloth.
  • the rear plush loops are formed by pile warp threads 9, while the front plush loops are formed by pile warp threads 10.
  • the basic fabric consists essentially of warp lengths shown enlarged in the loop diagram of FIG.
  • the basic fabric also includes weft loops l2 interconnecting the warps 11 (FIG. 3).
  • the weft threads 12 are supplied by thread guides 15.
  • the weft threads 12 are used to join the lengths 11 in a manner known in prior art.
  • the loop diagram of FIG. 3 shows several such weft threads 12 extend over only comparatively short stretches of the width of the fabric.
  • a separate thread guide 15 is provided for each weft thread 12.
  • the eye printed needles 16 of the rod 14 carry out essentially a rotary movement around the operating needles.
  • the needles 16 move up and down and also move in the longitudinal direction of the machine.
  • the up and down movement of the needles 16 is carried out by the cam 17.
  • the rod 14 is slidably mounted upon a guide 18, This arrangement of the rod 14 is well known in the art and for that reason is not shown in detail.
  • the thread guides 13 for the weft threads 12 carry out a movement only in the longitudinal direction of the machine. This is also well known and, therefore, not illustrated.
  • the rod 19a of the thread guides is caused to reciprocate in its longitudinal direction.
  • the pile warp threads 10 used for the formation of the front plush side are guided by separate thread guides 19 which are fixed to a rod 20.
  • the rod 20 is raised and lowered by a cam disc 21.
  • a rod 22 is provided with a claw 23 engaged into longitudinal grooves 24 of the rod 20.
  • the pile warp threads 10 are layed alternately under two operating needles.
  • the rod 20 must be moved in its longitudinal direction to the extent of two operating needles when it is shifted longitudinally in the claw 23. This drive is also well known and therefore, not illustrated.
  • the pilewarp threads 9 for the rear plush loops are guided by separate thread guides 25.
  • thread guides 25 as distinguished from the thread guides 19, carry out a movement only in the longitudinal direction of the machine and again to the extent of two operating needles.
  • the thread guides 25 are carried by a rod 26.
  • the longitudinal movement of the thread guides l3, l9 and 25 takes place above the operating needles.
  • the thread guides 19 of the pile warp threads are movable up and down, but not the thread guides and 25.
  • Pressure sinkers 27 are, therefore, provided for the weft threads 12 and the pile warp threads 9, the pressure sinkers being movable only up and down by a cam disc 28.
  • the front notches 29 of the pressure sinker 27 engage the weft threads 12 and move them after laying under the needles 1.
  • the notches 30 of the pressure sinkers 27 carry out the same operation in relation to the pile warp threads 9.
  • the general purpose is to provide a closed pile cover upon the front side as well as the rear side of the basic fabric.
  • Pressure sinkers 27 are necessary since the thread guides 15 of the basic wefts l2 carry out a movement only along the machine. The pressure sinkers move the weft threads 12 under the operational needles. If an uninterrupted plush cover is to be produced, it is necessary to provide a loop holder 7 and/or 8 between every two operational needles. Then there is not more room for the pressure sinkers 27 since this space is occupied by the loop holders. It was, therefore, necessary to leave out the loop holders 7 and/or 8 at those locations wherein the pressure sinkers 27 were present. The result was that the finished fabric had longitudinal strips with no plush loops.
  • the loop holders 7 are provided with slots (GIG. l) or grooves (FIG. 2) in which the pressure sinkers 27 are guided.
  • FIG. 3 shows the stitch loop diagram of the finished fabric from the rear side.
  • the plush loops are shown therefore, as being formed by the pile warp threads 9.
  • the front side of the finished fabric appears precisely the same as the rear side, whereby the plush loops are then formed by the pile warp threads 9.
  • loop holders as well as pressure sinkers are provided without interruptions along the entire width of the machine, so that the finished fabric will not have strips or passages without loops.
  • the present invention provides a basic fabric wherein the warp lengths 11 cannot be shifted transversely to the longitudinal axis of the finished fabric upon their weft threads 12.
  • the weft threads 12 are shifted relatively to'each other, so that for all practical purposes the reversing part of a weft thread 12 lies at each warp length 11.
  • a pressure sinker 27 must be provided between every two operating needles along the entire width of the machine.
  • a loop holder 7 and/or 8 must be always provided between two operating needles without interfering with the pressure sinkers 27. This is accomplished in accordance with the present invention by providing the loop holders with passages or grooves in which t e pressure smkers 27 are so mounted that they can be raised and lowered.
  • FIG. 3 illustrates the warp threads 13 and the weft threads 12. The guiding of the threads for the front loops 9 is shown in FIG. 4.
  • FIG. 5 shows that the pressure sinkers 27 move through grooves or cut out portions of the loop holders 7 and out of them during up and down movements.
  • the threads are not shown in FIG. 5 so as not to complicate the illustration.
  • a device for making looped cloth the base of which consists of warp lengths interconnected by weft threads, said device comprising operating needles, loop holders located between all of said needles over the entire width of the machine and having longitudinally extending recesses, and sinkers guided in said recesses and operable for pressing the weft threads below the operating needles.
  • said recesses consist of slots, said sinkers being freely movable through said loop holders in said slots.

Abstract

Crochet galloon machines are improved for the purpose of making thereon double-sided looped cloth which does not have portions devoid of loops. This is achieved by providing the rear and/or the front loop holders at the locations of the weft yarn pressure sinkers with slots, recesses or milled portions. The sinkers are vertically shifted and guided in these recesses.

Description

Jan. 2, 1973 [56] References Cited UNITED STATES PATENTS [54] DEVICE FOR PRODUCING DOUBLE- SIDED LOOPED CLOTH UPON CROCHET GALLOON MACHINES m m 8 b m m m r P mm m m e v 0 s 6 am W n w mk MR 6 E y 4 We n H mm nn 3 PA e du h mm Rm n m Sw M m "we um n um h a c S se Znmfl nu e erhe HFTG fl 0 t n e V n I .l 6 7 .l.
[57] ABSTRACT Crochet galloon machines are improved for the pur- [22] Filed: Aug. 30, 1967 pose of making thereon double-sided looped cloth which does not have portions devoid of loops. This is achieved by providing the rear and/or the front loop holders at the locations of the weft yarn pressure sinkers with slots, recesses or milled portions. The sinkers are vertically shifted and guided in these recesses.
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SHEET 3 [IF 4 DEVICE FOR PRODUCING DOUBLE-SIDED LOOPED CLOTH UPON CROCHET GALLOON MACHINES This invention relates to a device for producing double-sided looped cloth having no loop-free portions upon crochet galloon machines. These machines were used initially only to produce trimmings and braids.
Methods and devices for making double-sided looped cloth are known in prior art.
Close double-sided looped cloth is also made on crochet galloon machines which are then provided with special loop holders. However, this cloth has open channel-like spaces devoid of loops. The reason for this is that during the operation of the machine pressure sinkers must press the weft threads under the needles. Loop holders which are used to make loops upon the front and rear sides of the cloth could not be used as cations in which the pressure sinkers operate and since there are no long holders on these locations no loops are formed with the result that the finished cloth has open loop-free strips or passages. (German DDR Pat. No. 39,461).
An object of the present invention is, therefore, to provide a device which while retaining the general features of prior art procedures and without affecting the output of the machine, will make possible the manufacture of double-sided looped cloth having no loop-free portions.
Another object of the invention consists in the provision of a device of this type wherein the crochet threads of the base from which the loops promect, are not movable any more relatively to each other in the direction of the weft.
These objectives are attained by providing the rear and/or front loop holders with longitudinal recesses, such as slots, milled portions or the like at the location of the weft yarn pressure sinkers, the pressure sinkers being so mounted in these recesses that they can be shifted vertically without interfering with the formation of the loops. These slots and milled portions provide at the same time a good guide for the pressure sinkers. Thus according to the present invention the loop holders are not eliminated any more in the location of the pressure sinkers but extend through the entire width of the machine.
According to a further embodiment of the invention each crochet needle is provided with a weft yarn guide and a pressure sinker as well as a front and rear loop holder.
This makes it possible to apply a weft thread to each warp thread and make the warp threads firm against shifting in the direction of the weft.
The invention will appear more clearly from the following detailed description when taken in connection with the accompanying drawings showing two embodiments of the inventive idea.
In the drawings:
FIG. 1 is a vertical section through a device of the present invention which uses combined pressure sinkers for the weft and the rear threads the needles being shown as located in their retracted end position.
FIG. 2 is a vertical section through a device of the present invention having separately driven pressure sinkers for the weft, the needles being also located in their retracted end position.
FIG. 3 is a stitch loop diagram.
FIG. 4 is a section along the line IV IV of FIG. 3.
FIG. 5 is a perspective view of the device of the present invention.
FIG. 1 shows a crochet galloon machine of the present invention used for making double-sided looped cloth and having the usual operating needles, namely, hooked needles 1 and slide needles 2. The hooked needles 1 are fixed to a common rod 3, while needles 2 are fixed to a rod 4. A cam 6 actuating the rod 3 is used to reciprocate the needles 1, while a cam 5 actuating the rod 4 is used to reciprocate the needles 2. Loop holders 7 and 8 which are immovable, are used for forming the double-sided looped cloth. The rear plush loops are formed by pile warp threads 9, while the front plush loops are formed by pile warp threads 10. The basic fabric consists essentially of warp lengths shown enlarged in the loop diagram of FIG. 3 and indicated by the numeral 11. They are formed from warp threads 13 (FIG. 1). The basic fabric also includes weft loops l2 interconnecting the warps 11 (FIG. 3). To form the warp lengths 11 the needles receive the warp threads 13 from the laying rod 14 when the needles are in their front positions. The weft threads 12 are supplied by thread guides 15. As already stated, the weft threads 12 are used to join the lengths 11 in a manner known in prior art. The loop diagram of FIG. 3 shows several such weft threads 12 extend over only comparatively short stretches of the width of the fabric. A separate thread guide 15 is provided for each weft thread 12. To
simplify illustration, only one thread guide is shown in the drawing. The eye printed needles 16 of the rod 14 carry out essentially a rotary movement around the operating needles. For that purpose the needles 16 move up and down and also move in the longitudinal direction of the machine. The up and down movement of the needles 16 is carried out by the cam 17. In order to provide movement of the needles 16 in the direction of the longitudinal axis of the machine, the rod 14 is slidably mounted upon a guide 18, This arrangement of the rod 14 is well known in the art and for that reason is not shown in detail. The thread guides 13 for the weft threads 12 carry out a movement only in the longitudinal direction of the machine. This is also well known and, therefore, not illustrated. For that purpose the rod 19a of the thread guides is caused to reciprocate in its longitudinal direction. The pile warp threads 10 used for the formation of the front plush side, are guided by separate thread guides 19 which are fixed to a rod 20. The rod 20 is raised and lowered by a cam disc 21. For that purpose a rod 22 is provided with a claw 23 engaged into longitudinal grooves 24 of the rod 20. The pile warp threads 10 are layed alternately under two operating needles. The rod 20 must be moved in its longitudinal direction to the extent of two operating needles when it is shifted longitudinally in the claw 23. This drive is also well known and therefore, not illustrated. The pilewarp threads 9 for the rear plush loops are guided by separate thread guides 25. These thread guides 25, as distinguished from the thread guides 19, carry out a movement only in the longitudinal direction of the machine and again to the extent of two operating needles. The thread guides 25 are carried by a rod 26. The longitudinal movement of the thread guides l3, l9 and 25 takes place above the operating needles. As is known, it is necessary to avoid the formation of loops by the pile warp threads 9 and 10 and the weft threads 12. For this reason they must be brought after the laying under the operating needles. For this reason, as already stated, the thread guides 19 of the pile warp threads are movable up and down, but not the thread guides and 25. Pressure sinkers 27 are, therefore, provided for the weft threads 12 and the pile warp threads 9, the pressure sinkers being movable only up and down by a cam disc 28. The front notches 29 of the pressure sinker 27 engage the weft threads 12 and move them after laying under the needles 1. The notches 30 of the pressure sinkers 27 carry out the same operation in relation to the pile warp threads 9.
The general purpose is to provide a closed pile cover upon the front side as well as the rear side of the basic fabric. Pressure sinkers 27 are necessary since the thread guides 15 of the basic wefts l2 carry out a movement only along the machine. The pressure sinkers move the weft threads 12 under the operational needles. If an uninterrupted plush cover is to be produced, it is necessary to provide a loop holder 7 and/or 8 between every two operational needles. Then there is not more room for the pressure sinkers 27 since this space is occupied by the loop holders. It was, therefore, necessary to leave out the loop holders 7 and/or 8 at those locations wherein the pressure sinkers 27 were present. The result was that the finished fabric had longitudinal strips with no plush loops.
This drawback is eliminated by the present invention. According to the present invention the loop holders 7 are provided with slots (GIG. l) or grooves (FIG. 2) in which the pressure sinkers 27 are guided.
If the pressure sinkers 27 are located in the front side of the machine, namely, between the loop holders 8 and the thread guides 19, then the construction of FIG. 2 is used wherein the pressure sinkers 27 are guided in the grooves of the loop holders 8.
If the thread guides for the pile warp threads 9 are made movable up and down in the same manner as the thread guides 19, then it is not necessary to provide the pressure sinkers 27 with the notches 30.
FIG. 3 shows the stitch loop diagram of the finished fabric from the rear side. The plush loops are shown therefore, as being formed by the pile warp threads 9. The front side of the finished fabric appears precisely the same as the rear side, whereby the plush loops are then formed by the pile warp threads 9.
Thus an important feature of the present invention is that loop holders as well as pressure sinkers are provided without interruptions along the entire width of the machine, so that the finished fabric will not have strips or passages without loops.
Furthermore, the present invention provides a basic fabric wherein the warp lengths 11 cannot be shifted transversely to the longitudinal axis of the finished fabric upon their weft threads 12. For that purpose, as shown in FIG. 3, the weft threads 12 are shifted relatively to'each other, so that for all practical purposes the reversing part of a weft thread 12 lies at each warp length 11. For this reason a pressure sinker 27 must be provided between every two operating needles along the entire width of the machine. Furthermore, a loop holder 7 and/or 8 must be always provided between two operating needles without interfering with the pressure sinkers 27. This is accomplished in accordance with the present invention by providing the loop holders with passages or grooves in which t e pressure smkers 27 are so mounted that they can be raised and lowered.
FIG. 3 illustrates the warp threads 13 and the weft threads 12. The guiding of the threads for the front loops 9 is shown in FIG. 4.
As illustrated in FIGS. 4 and 5 the formation of loops 9 and 10 takes place by loop holders 7 and 8. FIG. 5 shows that the pressure sinkers 27 move through grooves or cut out portions of the loop holders 7 and out of them during up and down movements. The threads are not shown in FIG. 5 so as not to complicate the illustration.
We claim:
1. In a crochet galloon machine, a device for making looped cloth the base of which consists of warp lengths interconnected by weft threads, said device comprising operating needles, loop holders located between all of said needles over the entire width of the machine and having longitudinally extending recesses, and sinkers guided in said recesses and operable for pressing the weft threads below the operating needles.
2. A device in accordance with claim 1, wherein said recesses consist of slots, said sinkers being freely movable through said loop holders in said slots.
3. A device in accordance with claim 1, wherein said recesses consist of grooves, said sinkers being guided through said loop holders in said grooves.
4. A device in accordance with claim 1, wherein said sinkers have notches for their weft threads and additional notches for their looped threads.

Claims (4)

1. In a crochet galloon machine, a device for making looped cloth the base of which consists of warp lengths interconnected by weft threads, said device comprising operating needles, loop holders located between all of said needles over the entire width of the machine and having longitudinally extending recesses, and sinkers guided in said recesses and operable for pressing the weft threads below the operating needles.
2. A device in accordanCe with claim 1, wherein said recesses consist of slots, said sinkers being freely movable through said loop holders in said slots.
3. A device in accordance with claim 1, wherein said recesses consist of grooves, said sinkers being guided through said loop holders in said grooves.
4. A device in accordance with claim 1, wherein said sinkers have notches for their weft threads and additional notches for their looped threads.
US00664388A 1967-08-30 1967-08-30 Device for producing double-sided looped cloth upon crochet galloon machines Expired - Lifetime US3707853A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857260A (en) * 1972-06-05 1974-12-31 A Zwingenberger Sinker arrangement for warp knitting and raschel machines
FR2234402A1 (en) * 1973-06-22 1975-01-17 Wirkmaschinenbau Karl Marx Veb
US3864943A (en) * 1973-09-06 1975-02-11 Liba Maschf Warp knitting or raschel machine
US3913355A (en) * 1974-06-24 1975-10-21 Wirkmaschinenbau Karl Marx Veb Arrangement of elements in a knitting machine
FR2311124A1 (en) * 1975-05-12 1976-12-10 Wirkmaschinenbau Karl Marx Veb DRAWING DEVICE FOR HAIR KNITTING LAMPS, IN PARTICULAR FOR THE MANUFACTURE OF KNITWEAR WITH LOOPS FORMING HAIR AND JACQUARD DRAWING ON TRIM CROCHETERS
US4089191A (en) * 1976-04-19 1978-05-16 Veb Wirkmaschinenbau Karl-Marx-Stadt Patterning apparatus for knitting machines, particularly for manufacturing patterned knitted pile fabrics on crochetting machines
US4092838A (en) * 1977-07-22 1978-06-06 Joan Manufacturing Corporation Yarn guide tubes for warp knitting machines
US4266410A (en) * 1978-10-20 1981-05-12 Textima, Veb Wirkmaschinenbau-Karl-Marx Stadt Method and warp knitting machine for the manufacture of a looped pile warp knit fabric having a pile pattern
US4266411A (en) * 1979-10-15 1981-05-12 Veb Wirkmaschinenbau Karl-Marx-Stadt Method and machine for forming plush-loop warp knit fabric
US4389860A (en) * 1978-06-08 1983-06-28 Textima Veb Wirkmaschinenbau Karl-Marx-Stadt Kombinat Textima Warp knitting machine for the production of jacquard-patterned pile-knit fabrics
US4503688A (en) * 1981-09-07 1985-03-12 Veb Kombinat Textima Chain stitching machine, especially stitched goods machine
CN100496834C (en) * 2007-11-21 2009-06-10 孙国飞 Internal circular arc sinker milling flutes device
US20160130735A1 (en) * 2013-06-21 2016-05-12 Santoni S.P.A. Device for feeding thread to needles of a knitting machine
US20170159213A1 (en) * 2014-05-26 2017-06-08 Jiangnan University Method for forming yarn pressing weave by using groove pin warp knitting machine based on servo driving
US11891952B2 (en) 2020-06-05 2024-02-06 Bj Energy Solutions, Llc Systems and methods to enhance intake air flow to a gas turbine engine of a hydraulic fracturing unit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213646A (en) * 1962-12-19 1965-10-26 Elliot C Van Patten Knitted pile fabrics

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213646A (en) * 1962-12-19 1965-10-26 Elliot C Van Patten Knitted pile fabrics

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857260A (en) * 1972-06-05 1974-12-31 A Zwingenberger Sinker arrangement for warp knitting and raschel machines
FR2234402A1 (en) * 1973-06-22 1975-01-17 Wirkmaschinenbau Karl Marx Veb
US3864943A (en) * 1973-09-06 1975-02-11 Liba Maschf Warp knitting or raschel machine
US3913355A (en) * 1974-06-24 1975-10-21 Wirkmaschinenbau Karl Marx Veb Arrangement of elements in a knitting machine
FR2311124A1 (en) * 1975-05-12 1976-12-10 Wirkmaschinenbau Karl Marx Veb DRAWING DEVICE FOR HAIR KNITTING LAMPS, IN PARTICULAR FOR THE MANUFACTURE OF KNITWEAR WITH LOOPS FORMING HAIR AND JACQUARD DRAWING ON TRIM CROCHETERS
US4031717A (en) * 1975-05-12 1977-06-28 Veb Wirkmaschinenbau Patterning apparatus for knitting machines, particularly for manufacturing patterned knitted pile fabrics on crochetting machines
US4089191A (en) * 1976-04-19 1978-05-16 Veb Wirkmaschinenbau Karl-Marx-Stadt Patterning apparatus for knitting machines, particularly for manufacturing patterned knitted pile fabrics on crochetting machines
US4092838A (en) * 1977-07-22 1978-06-06 Joan Manufacturing Corporation Yarn guide tubes for warp knitting machines
US4389860A (en) * 1978-06-08 1983-06-28 Textima Veb Wirkmaschinenbau Karl-Marx-Stadt Kombinat Textima Warp knitting machine for the production of jacquard-patterned pile-knit fabrics
US4266410A (en) * 1978-10-20 1981-05-12 Textima, Veb Wirkmaschinenbau-Karl-Marx Stadt Method and warp knitting machine for the manufacture of a looped pile warp knit fabric having a pile pattern
US4266411A (en) * 1979-10-15 1981-05-12 Veb Wirkmaschinenbau Karl-Marx-Stadt Method and machine for forming plush-loop warp knit fabric
US4503688A (en) * 1981-09-07 1985-03-12 Veb Kombinat Textima Chain stitching machine, especially stitched goods machine
CN100496834C (en) * 2007-11-21 2009-06-10 孙国飞 Internal circular arc sinker milling flutes device
US20160130735A1 (en) * 2013-06-21 2016-05-12 Santoni S.P.A. Device for feeding thread to needles of a knitting machine
US10472749B2 (en) * 2013-06-21 2019-11-12 Santoni S.P.A. Device for feeding thread to needles of a knitting machine
US20170159213A1 (en) * 2014-05-26 2017-06-08 Jiangnan University Method for forming yarn pressing weave by using groove pin warp knitting machine based on servo driving
US10077514B2 (en) * 2014-05-26 2018-09-18 Jiangnan University Method for forming fall-plate weave by using groove pin warp knitting machine based on servo driving
US11891952B2 (en) 2020-06-05 2024-02-06 Bj Energy Solutions, Llc Systems and methods to enhance intake air flow to a gas turbine engine of a hydraulic fracturing unit

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