|Publication number||US3400738 A|
|Publication date||Sep 10, 1968|
|Filing date||Nov 28, 1966|
|Priority date||Nov 30, 1965|
|Also published as||DE1535771B1|
|Publication number||US 3400738 A, US 3400738A, US-A-3400738, US3400738 A, US3400738A|
|Inventors||Carl Thomsen Christen, Christie Fleischer Svend Sigur, Heinrich Rossborg Werner, Wilhelm Hofmann Gottfried Gerh|
|Original Assignee||Carl Thomsen Christen, Gottfried Gerhard Wilhelm Hofmann, Svend Sigurd Christie Fleischer, Heinrich Rossborg Werner|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (3), Referenced by (5), Classifications (6)|
|External Links: USPTO, USPTO Assignment, Espacenet|
Sept l0, 1968 s. s. c. FLEIscHl-:R ETAL 3,400,738
PILE YARN SELECTING ARRANGEMENT FCR A CARPET L OOM Filed Nov. 2s, 1965 K 4 Sheets-.Sheet 1f Fig.4
SePt- 10 1968 s. s. c. FLEIscI-IER ET AI. 3,400,738
PILE YARN SELECTING ARRANGEMENT FOR A CARPET LOOM Filed Nov. 28, 1966 4 Sheets-Sheet 2 Filed Nov. 28, 1966 sept. 1o, 196s PILE YARN SELECTING ARRANGEMENT FOR A CARPET LOOM v 4 Sheets-Sheet 5 JACOUARD MECHAN/SME aw 9 E ,4 1o\9a 33 Pfg-9 3a I k 32 24 22 39 29 3 L l 37 2l Y q Sept. l0, 1968 s. s. c. FLEISCHER ET AL 3,400,738
PILE YARN SELECTING ARRANGEMENT FOR A CARPET LOM Filed Nov. 28, 1966 4 Sheets-Sheet 4 United States Patent O ce ABSTRACT OF THE DISCLOSURE Each pile yarn carrier of a carpet loom is controlled by two or more selectors which are individually shifted be? tween two positions by a Jacquard mechanism so that the selectors have a great number of different relative positions in eachof which they stop the yarn carrier in a different position for supplying different yarns to a working station.
Background of the invention The present invention is an improvement of carpet ,looms having a Jacquard mechanism or like program controlled apparatus controlling the supply and insertion of differently colored pile yarns,
In Jacquard carpet looms according to the prior art, pile yarn carriers are arranged in vertical position in a row, and raised to different levels to place different pile yarns carried by the yarn carrier at the level of a working station where grippers engage the selected pile yarn which is located at the working station. It is possible to place the yarn carrier in eight different positions, corresponding to the selection of a pile yarn from eight pile yarns of different colors. Since the carriers are operated by the Jacquard mechanism, it is necessary to provide eight holes in the Jacquard card and to use eight harness cords of the Jacquard mechanism. However, while it would be desirable to use a smaller number of harness cords for each yarn carrier, modern carpets require an even greater number of differently colored pile yarns.
Summarv f the invention It is an object of the invention to move the pile yarn carriers of a carpet loom between a great number of positions for selectively supplying at a working station a corresponding great number of differently colored pile yarns, while each yarn carrier is operated from the Jacquard mechanism by a smaller number of harness cords.
With this object in view, the present invention relates to an improvement in which the yarn carrier is not directly controlled by the Jacquard mechanism, but is controlled by selector means which are capable of effecting a selection between a great number of different positions of the yarn carrier, while being operated by a small number of harness cords of the Jacquard mechanism.
An embodiment of the invention comprises a plurality of pile yarn carrier means, each of which has a set of holding means for holding a set of pile yarns, and being movable between a set of working positions in which different holding means and pile yarns are located at a working station; a series of selector means, preferably notchedv Patented Sept. 10, 1968 other between the first and second positions for placing each series of selector means in a plurality of different relative positions in which different notches of the selector bars, for example, are aligned, Each series of selector means cooperates in each of the different relative positions with the respective carrier means for causing the same to assume different working positions. More particularly, the carrier means includes a catch which engages only aligned notches of a sexies of selector bars for stopping the respective carrier means in one of the working positions. The number of control means connected with the Jacquard mechanism, and the corresponding number of selector means of each series, is far smaller than the number of different relative positions which can be assumed by each series of selector means, and since the latter number corresponds to the number of working positions of the yarn carrier means, and to the number of selectable pile yarns, a small number of Jacquard control means is used for the selection of a greater number of pile yarns. In accordance with the new principle of the invention, the yarn carrier is not directly controlled by the Jacquard mechanism, but the Jacquard mechanism controls through cords and control levers operated by the same, the positions of selector means which, by their relative position, determine the position of the respective yarn carrier. The term Jacquard mechanism is used in the present application to cover any program controlled mechanism capable of performing the functions of a Jacquard mechanism.
Preferably, the control levers have stop fingers which are placed under the control of the Jacquard mechanism under the selector bars and maintain the same in a higher or lower position for aligning notches in the same.
In this manner, it is possible to control a yarn carrier by only two selector means to assume four different working positions in which different yarns are placed opposite grippers at the working station. Three selector bars permit the movement of the yarn carrier between eight different positions, .and the selection from eight pile yarns of different colors. Four selector bars permit the control of the yarn carrier between sixteen ditferent positions and a selection from sixteen differently colored yarns. A series of four selector bars results already in a great saving since only four working points of the Jacquard mechanism, and consequently only four holes in the Jacquard card are used for a selection between sixteen different pile yarns, whereas in conventional carpet looms of this type, a selection between only four different pile yarns is possible.
The required number of Jacquard cards, and of the feeler needles of the Jacquard mechanism is reduced to one quarter by the arrangement of the invention as compared with the prior art.
In accordance with the preferred embodiment of the invention, the yarn holding means of each yarn carrier are constructed as slanted clamping springs which permit a movement of the clamped pile yarns in the feeding direction when pulled by grippers, but locks the pile yarns against movement in the opposite direction toward the creel magazine. 'Ihis is of utmost importance for assuring a faultless tying of the pile yarns. Furthermore, the slanted clamping springs have the advantage that slubs in the pile yarn can pass the springs without difficulty. Due to the construction of the yarn holding means, it is possible to quickly insert pile yarns into the yarn carriers, so that the time during which the loom cannot be used is substantially reduced.
As explained above, each yarn carrier is provided with a preferably pivotally mounted catch which slides along a series of selector bars until falling into a series of aligned notches which determine the position of the yarn carrier, and consequently the position of the yarn holding means so that a selected yarn holding means and the pile yarn `held thereby, is placed at the level of the working station where a gripper grips the selected and supplied pile yarn. A particularly close spacing of the yarn carriers is obtained if two series of selector means are disposed on opposite sides, respectively, of alternate yarn carriers.
The control levers which determine the positions of the selector bars are preferably connected by resilient connecting means with the respective cords of the Jacquard mechanism. In this manner, inaccuracies of the Jacquard cords are compensated.
In the preferred embodiment, the yarn carriers are slidably guided for vertical movement in guide means which assure that the thin and long yarn carriers are neither bent nor buckled when raised and lowered between different working positions. The yarn carriers are together raised and lowered by operating means including rotary cam means, and the yarn carriers are raised by a bar which has a slanted surface so that not all yarn carriers are simultaneously engaged. A damping material on the bar further reduces the noise and force of the impact.
As noted above, gripper means grip and pull the respective selected pile yarn at the working station. In order to facilitate this operation, each yarn carrier has lateral lwalls between which the holding means for the pile yarns are located. The grippers enter the space between the lateral walls, and are guided during such movement by an outwardly widening passage formed by the inner surfaces of the lateral walls.
The novel features which are considered as characteristic for the invention are set forth in particular in the appended claims. The invention itself, however, both as to its construction and its method of operation, together with additional objects and advantages thereof, will be best understood from the following description of specific embodiments when read in connection with the accompanying drawings.
Brief description of the drawing FIG. 1, FIG. 2 and FIG. 3 are diagrams illustrating possible relative positions of two, three, or four selector bars;
FIG. 4 is a fragmentary perspective view illustrating four different relative positions of a series of two selector bars cooperating with a yarn carrier;
FIG. 5 is a side elevation of a yarn carrier;
FIG. 6 is a front view of a yarn carrier;
FIG. 7 is a section of the yam carrier taken on line 7-7 in FIG. 5;
FIG. 8 is a side elevation illustrating a selecting arrangement according to the invention;
FIG. 9 is a plan view of a guide member of the embodiment of FIG. 8;
FIG. 10 is a schematic plan view illustrating a modified embodiment of the invention;
FIG. l1 is a front view illustrating a detail of the embodiment of FIG. 8; and
FIG. 12 is a side elevation illustrating a modified control means which may be used in the embodiment of FIG. 8.
Description of the preferred embodiments Referring first to FIG. 4, four series of selector bars are illustrated in different relative positions I, II, III, IV. Each series is shown to have two selector bars 1 and 2, each of which has three notches, the notches in each selector bar 1 and 2 being differently spaced. As will be explained hereinafter, the selector bars can be selectively placed in any of the relative positions Ito IV by raising and lowering each selector bar between first and second positions.
In the position I, both selector bars 1 and 2 are in a higher first position, and a pair of notches 1a, 2a are aligned at a level 6. In the relative position II, both selec- Cil tor bars 1 and 2 are in a second lower position resting on a bar 5, and recesses 1a, 2a are aligned at a lower level 6'. In the relative position III, selector bar 1 is in the higher first position and seelctor bar 2 is in the lower second position, and notches 1b and 2b are aligned at a different level 7. In the relative position IV, selector bar 1 is in the lower position and selector bar 2 in the higher position so that notches 1c and 2c are aligned at a differerent level 8.
Each series of two selector' bars 1, 2 cooperates with a yarn carrier means 10, only one yarn carrier means 10 being shown in FIG. 2 to cooperate with the first series. Each yarn carrier means includes a thin carrier bar, and a catch lever 9 pivotally mounted on a pin 11 and having a stop arm 12 cooperating with a stop 13.
As will be described hereinafter in greater detail, the carrier means 10 are simultaneously raised and lowered, and during the downward movement catch or feeler 9 slides along the adjacent surfaces 1d and 2d until the catch falls into a series of aligned notches, which are the notches 1a and 2a in position I. Consequently, catch 9 will stop y fn carrier 10 at level 6. When a series of two selector bars is placed in the relative position II, the notches 1a and 2a are aligned at the lower level 6' at which the yarn carrier means 10 is stopped. In the position III, the yarn carrier means 10 drops further until catch 9 engages the aligned notches 1b and 2b at the lower level 7 so that the yarn carrier means 10 is stopped in a low position. In the relative position IV, the yarn carrier means is stopped at the level 8 where notches 1c and 2c are aligned.
It will be seen that by shifting selector means 1 and 2 betwen two positions, the yarn carrier 10 can be stopped in one of four selected positions. When catch lever 9 enters a series of aligned notches, it turns until stop arm 12 abuts stop 13 whereupon the yarn carrier means 10 is stopped in the respective working position.
FIG. 1 schematically illustrates the possible positions of two selector bars 1 and 2. The higher position is illustrated by a black dot, and the lower position by a circle. The four positions I, II, III, and IV can be assumed by the selector bars, as shown in the perspective view of FIG. 4.
In the modified arrangement of FIG. 2, each series includes three selector bars. It will be understood that the selector bars can be placed in eight different relative positions in which different series of notches are aligned at different levels.
FIG. 3 schematically shows sixteen different relative positions which can be assumed by four selector bars when the same are shifted betwen first and second positions. Different series of notches are aligned in each different relative position of the respective series of selector bars, so that a yarn carrier means 10 cooperating with a series of four selector bars can be stopped in sixteen different working positions. In the arrangement of FIG. 2 where a series of three selector bars is provided, the respective correlated single yarn carrier means can be stopped in eight working positions.
For the sake if simplicity, FIG. 4 illustrates a series of two selector bars for each yarn carrier means, although arrangements with series of three or four selector bars are preferred since the possibility of moving each yarn carrier between eight or sixteen positions is highly desirable.
Catch 9 can enter only into a complete series of aligned notches, since the higher surface 1d or 2d, or the corresponding surfaces of additional selector bars, prevents catch 9 from entering when even one notch is not aligned with the other notches of the respective series.
Referring now to FIGS. 5, 6 `and 7 which illustrate a yarn carrier means, the upper portion of the yarn carrier means is formed by the carrier bar 10 on which catch lever 9 is mounted, Catch lever 9 has two arms embracing carrier bar 10 so as to be symmetrically supported on pivot pin 11 whereby the forces are transmitted'to two parts of the pin. One arm is extended as stop arm 12 which cooperates with the hexagonal eccentric head 13 of a bolt which passes through a bore in carrier bar and is secured .by a nut. Head 13 is an adjustable stop engaged by stop arm 12, and when the bolt is turned with the eccentric head, the position of catch lever 9 can be Kadjusted until the edge of feeler arm portion 9a is parallel to the corner of the aligned notches. A spring 14 is coiled about a bolt 15 and secured to the same at one end, while its other end abuts catch lever 9 to urge the feeler arm 9a of the same into sliding engagement with surfaces 1d, 2d, and nally into -a coupling position located in a series of aligned notches, as explained with reference to FIG. 4. Selector means 1, 2 are only schematically indicated in FIG. 5. IDue to the saw tooth shape of notches 1a, 2a, feeler arm 9a of catch lever 9 is urged out of the notches when the yarn carrier means moves upward, and is held in the notches when the yarn carrier means moves downward. The width of the feeler arm portion 9a of catch lever 9 is shown in FIG. 6 to be substantially the same as the width of two selector bars 1, 2, but if a series of -four selector bars is provided for each yarn carrier means, the feeler arm portion 9a has the width of the entire series of four selector bars as shown in FIG, 10. In the modified embodiment of FIG. 10, four selector bars 1, 2, 3, 4 -are provided in each series, -and have notches which, when aligned across the series of selector bars, are engaged by feeler arm portion 9a to stop the respective yarn carrier means 10 in a selected Lworking position of sixteen possible positions, as explained with reference to FIG. 3. Since the yarn carrier means 10 are closely spaced, catch levers 9 and the associated series of selector bars 1 to 4 are located on opposite sides of alternate yarn carrier means 10'.
Due to the arrangement of lcatch levers 9 on opposite sides of adjacent yarn carrier means, adjacent c-atch levers cannot interfere with each other during relative movement between two adjacent yarn carrier means.
Lateral walls 19 are secured to opposite sides of a carrier bar 10 and an end member 20. A set of four clamping blocks 18 is located uniformly spaced from each other between the lateral walls 19 and secured to the same. Blocks 18 have such a shape that holding portions 17a of springs 17 can be snapped onto the same, while the slanted clamping portions 17b abut the lower surface of the next higher clamping block. Each clamping block and spring 17 of the adjacent clamping block constitutes a holding means for holding a pile yarn 16. For the sake of simplicity, only two pile yarns 16 are shown t0 be inserted and clamped by springs 17, but four pile yarns of different color could be held by the set of four holding means .of the respective yarn carrier.
Each pile yarn 16 is inserted in the direction of the arrow, and due to the slanted position of spring portion 17b, it can be pulled out in the direction of the arrow, while movement in the opposite directon is not possible since the end of spring portion 1719 compresses the pile yarn and locks the same in the inserted position. Since each pile yarn is pressed against the underside of a block 18, the pile yarns are accurately spaced from each other the same distance which is equal to the distance between levels 6, 6', 7, 8 of aligned series of notches, as explained with reference to FIG. 4.
In FIG. 8, four pile yarns are shown to be held by a yarn carrier, and the yarn carrier is shown in its highest position in which catch lever 9 engages a series of aligned notches at the highest level =6. Consequently, the lowest pile yarn 16 is raised to the level of a working station at which a gripper means 70 is located. It will be understood that, depending which series of aligned notches is en- -gaged by catch lever 9, the yarn carrier means will be stopped during downward movement in one of four working positions in which different pile yarns 16 are located at the level of the working station to be gripped and pulled toward the right as viewed in the drawing by gripper means 70.
`the space between adjacent clamping blocks after correspondingly bending clamping spring portion 1717. Lateral walls 19 guide the pile yarns toward the grippers 70, and
in order to assure the gripping of the pile yarns by the grippers, walls 19 have outwardly flaring portions 19a, as best seen in FIG. 7, which guide the advancing grippers toward the free end of the pile yarn.
Referring now to FIG.8 which illustrates a complete embodiment of the invention, the bars 10 and 20 of each yarn carrier are guided between pairs of guide bars 52 and 53, and also in the spaces of comb-shaped guide members 55 and 54, best seen in FIG. 9. The guide means define rectangular guideways corresponding to the rectangular cross section of bars 10 and 20. Stationary bracket means 50 are secured to guide means 53 and clamp a guide rod 49 whose other end is clamped in another stationary bracket means 51. Bracket means 51 has a pivot 51a on which a lever Slb is mounted for angular movement. A cam 25 on a shaft 46 cooperates with a cam follower roller 51e on lever 51b so that the same is angularly oscillated.
Another cam 40 is adjustably secured to drive shaft 46 and cooperates with a cam lfollower roller 42 on a lever 41 which is mounted on a stationary pivot 43 for oscillating movement under the control of cam 40. Lever 41 has a forked end portion embracing a roller 44 mounted on a lifting bar 45 which extends under a row of yarn carrier means and is operated by several levers 41. Cam 40 has slots through which attaching screws pass so that the exact position of the stroke of lifting bar 45 can be adjusted. Lifting bar 45 has a plurality of guide means 47 guided on guide rods 49 so that lifting bar 45 moves in exactly vertical direction during its up and down movement. A damping bar 56 is secured to the lifting bar 45 and is slanted to the surface of the same in opposite directions, as best seen in FIG. l1. Damping bar 56 consists of a damping material and is secured to lifting bar 45 by an adhesive or other means. Due to the slant of damping bar 56, the end portions 20 of the yarn carrier means 10 are not engaged at the same moment during the rising of the lifting bar so that the impact is reduced, and the noise dampened. As explained above, the yarn carriers are stopped at different levels by the selector means so that substantial impact forces are developed when the end portions 20 of the yarn carriers are engaged by the rising lifting bar 45 and damping bar 56.
During each revolution of cam 40, the yarn carrier means are raised to a level in which catch levers 9 are located above the uppermost notches of selector bars 1, 2, whereupon cam 40 lowers bars 45, 56 permitting the yarn carriers to drop until the respective catch levers engage aligned series of notches of the respective associated series of selector bars. In this manner, the yarn carriers are stopped at different heights, and a selected pile yarn 16 is located at the level of the operating station opposite grippers 70. Bars 45 and 56 continue first the downward movement, and then move upward again to -rise the yarn carriers for the next selecting operation.
At the same time, cam 25 oscillates lever 51h and this movement is transmitted by a connecting rod 28 to double armed operating lever means 29 which are mounted on stationary pivot means 39 for angular movement. Lever means 29 carry heads 30 connected by bolts 31 with lever means 29 and located laterally outside of the region of selector bars 1, 2. A bar 32 connects the heads 3). The up and down movement of the operating member 32, 30 is transmitted to the selector bars 1, 2 by a rod 34 which is guided in slots in stationary guide members 33. Rod 34 extends transversely across all selector bars. Slots 34a in the selector bars have a sufcient length to permit movement of the selector bars between the upper and lower positions explained with reference to FIG. 4. A guide rod 36 which is stationarily mounted passes through slots in the upper parts of the selector bars so that the selector bars are guided for straight vertical movement.
Two control levers 22 respectively cooperate with the two selector bars 1, 2 of each yarn carrier means, and are mounted for angular :movement on a supporting means 35. The ends of control levers 22 are connected by resilient connectors 24 to two cords 23 of the Jacquard mechanism so that control levers 22 can be raised to an operative position in which a finger 21 thereof is located under the respective selector member, and an inoperative position in which the finger is spaced from the selector member.
The operating means including cam 40, lever 51h, rod 28, lever means 29 and operating member 30, 32, 34 effect first upward movement of the selector bars 1 and 2 and then permit downward movement of the same. Depending on the position of the respective associated control lever 22, one or both selector bars are stopped in a higher position by finger or fingers 21, or are permitted to move farther down into engagement with supporting means 35. Control levers 22 are placed in the operative or inoperative position, respectively, by the Jacquard mechanism and its cords 23 so that the different relative positions of the selector bars, which lwere explained with reference to FIGS. l to 4, are obtained under the control of the pattern mechanism. In accordance with the relative position of the selector bars, catch lever 9 will engage aligned notches at a higher or lower level, and the downward movement of the yarn carrier is stopped at a corresponding level. A pair of guide rollers 37 on each head 30 guides the same in vertical direction in guide slots 38.
A modified control means for operating the selector bars under control of the Jacquard mechanism is illustrated in FIG. 12. The cord 23 is connected to a loopshaped resilient connector 24 which is thinner than the coil spring 24 used in the embodiment of FIG. 8. If a great number of selector bars is used for controlling each yarn carrier, a very small pitch distance is available for the control levers 22 or 22. The resilient connector 24 shown in FIG. 12 requires very little transverse space. A portion of the spring 24 is inserted into a bore of control lever 22 and secured in the same. Lever 22' has preferably bosses 57 slidingly engaging corresponding bosses of the adjacent control levers to reduce the friction.
During operation, first operating means including cam 40 raise the yarn carriers to a high level, and second operating means including cam 25 raise the selector bars 1, 2, or 1, 2, 3, 4, in the embodiment of FIG. 10, to a high level. When the selector bars are again permitted to move downward, selected selector bars are stopped at a higher level by the finger 21 of the respective control lever 22, while other selector bars are permitted to move downward lto the lower position, as explained with reference to FIG. 4. In this manner, each series of selector bars can be placed in one of four different relative selecting positions in which a series of notches is formed at four different levels.
When the respective yarn carrier is permitted to move downward by the yielding cam follower means 41, 42 on a low track portion of cam 40 of the first operating means, it is stopped by catch lever 9 engaging the series of aligned notches with feeler arm portion 9a, and depending on the level of the series of aligned notches, which forms a stop means, the yarn carrier is stopped in one of four different positions in which one of the four pile yarns 16 is located at the level of grippers 70 which are moved into the space between the lateral walls 19 of the respective yarn carrier to grip the respective pile yarn and to pull the same to the right as viewed in FIG. 8, for being tied into the carpet fabric in a manner which is not an object of the invention. After this operation has been completed, gripper means 70 releases the respective pile yarn, and after completion of the respective revolution of drive shaft 46, cams 40 and 25 again raise all yarn carriers and selec-tor bars for initiating the next selection of a pile yarn.
If a series of three selector bars is used in cooperation with each yarn carrier, eight pile yarns can be held by the eight holding means 17, 18 of such a yarn carrier and selectively placed at the working station for engagement by grippers 70. If a series of four selector bars is used for each yarn carrier, as shown in FIG. 10, sixteen pile yarns are carried by each yarn carrier, as explained with reference to FIG. 3, and the yarn carrier is stopped by an aligned series of notches of the series of selector bars in one of sixteen positions for the selection of one of sixteen pile yarns.
It will be understood that each of the elements described above, or two or more together, may also find a useful application in other types of carpet looms differing from ythe types described above.
While the invention has been illustrated and described as embodied in a pile yarn selecting arrangement in which a small number of control means operated by a a Jacquard mechanism controls the selection of a pile yarn from a greater number of pile yarns, it is not intended to be limited to the details shown, since various modifications and structural changes may be made without departing in any way from the spirit of the present invention.
What is claimed as new and desired to be protected by Letters Patent `is set forth in the appended claims.
1. Pile yarn selecting arrangement for a carpet loom having a Jacquard mechanism, comprising, in combination, a plurality of pile yarn carrier means, each carrier means having a set of holding means for holding a set of pile yarns; supporting means for mounting each carrier means for movement between a set of working positions in which different holding means and pile Yarns are located at a working station; a plurality of series of selector means cooperating with said carrier means, respectively, so that a series of selector means cooperates with any one carrier means, each selector means being movable between at least first and second positions; and a series of control means respectively cooperating with each series of selector means and adapted to be actuated by said Jacquard mechanism to move said selector means, respectively, independently of each other between said first and second positions for placing all selector means of each series of selector means in a plurality of different relative positions, each series of selector means cooperating in each of said different relative positions with the respective carrier means for causing the same to assume different working positions whereby the number of selectable pile yarns is greater than the number of said series of control means.
2. Selecting arrangement as defined in claim 1 comprising operating means for moving said carrier means; and wherein each series of selector means forms in each of said different relative positions a differently disposed stop means for stopping movement of the respective carrier means in different working positions.
3. Selecting arrangement as defined in claim 2 wherein each of said carrier means includes a carrier bar, and a catch mounted on the same; and wherein each selector means has a plurality of notches disposed so that in each of said different relative positions a different series of notches is aligned to form said stop means, each series of aligned notches cooperating with said catch to stop the respective carrier means in a different working position.
4. Selecting arrangement as defined in claim 3 wherein said operating means raise said carrier means so that during the following downward movement, said catch engages the selected series of aligned notches for stopping said carrier means in one of said working positions.
5. Selecting arrangement as defined in claim 4 wherein each control means includes a control member having a first position and a second position for causing the respective selector means to be moved between said first and second positions, respectively, and cord means connected with said con-trol member for connecting the same with said Jacquard mechanism so that each control member is operated between said first and second positions in accordance with a pattern program; and comprising other operating means for raising said selector means; and wherein each control member in said first position thereof limits downward movement of the respective selector means so that the sa-me stops in saidfirst position thereof, each control member in said second position thereof permitting downward movement -of the respective selector means to said second position thereof.
6. Selecting arrangement as defined in claim 1 and including two series of selector means disposed on opposite sides, respectively, of alternate carrier means.
7. Selecting arrangement as defined in claim 1 wherein each control means includes a control member operatively connected with one of said selector means, a cord connected with the Jacquard mechanism, and resilient connector means connecting said cord with said control member.
8. Selecting arrangement as defined in claim 1 wherein said carrier means are arranged in a row; and comprising guide means for guiding said carrier means for vertical movement; and -operating means for raising and lowering said carrier means, said operating means includ- -ing a lift-ing bar extending across the lower ends of said carrier means, and guide means for guiding said lifting bar for straight vertical movement so that deformation of said carrier means is prevented.
9. Selecting arrangement as defined in claim 8 and including impact damping means secured to said lifting bar andv located between -the same and the lower ends of said yarn carrier means, said impact damping means having a slanted surface so that yarn carrier means located at the same level are successively engaged by said impact damping means during upward movement of said lifting bar.
10. Selecting arrangement as defined in claim 1 comprising operating means for raising said carrier means and for then permitting said carrier means to drop; and wherein each series of selector means forms in each of said different relative positions a differently disposed stop means for stopping movement of the respective carrier means in different working posit-ions, said stop lmeans formed by each series of selector means being spaced from each other the same distance.
11. Selecting arrangement as defined in claim 1 wherein each carrier means includes aligned bars at the ends thereof, and a pair of side walls secured to said bars and supporting between each other said set of holding means so that pile yarns held by the same are guided between said side walls; said side walls forming an outwardly flaring inlet adapted to receive a gripper gripping one of said pile yarns.
12. Selecting arrangement Ias defined in cla-im 1 wherein each of said carrier means includes a pvot pin, and a catch lever having a pair of arms pivotally mounted on the end of said pivot pin for angular movement, an eccentric turnable stop mounted on said carrier bar and cooperating with one of said arms, and a spring mounted on said carrier bar for urging said catch lever against said eccentric stop so that the position of said catch lever can be adjusted by turning said eccentric stop; and wherein each selector means has a plurality of notches disposed so that in each of said 4different relative positions -a different series of notches is aligned to cooperate with said catch lever for stopping the respective yarn carrier means in one of said working positions.
13. Selecting arrangement as defined in claim 1 including first operating means for moving said pile carrier means, second operating means for moving said series of selector means; and wherein said control means stop the moving selector means in one of said first and second positions; and wherein each series of selector means in said different relative positions forms a stop means for stopping the moving carrier means in one of said working positions.
14. Selecting arrangement as defined in claim 1 wherein each series of selector means forms in each of said different relative positions a differently disposed stop means; wherein each carrier means includes a feeler means in contact with all selector means of the respective associated series of selector means; and comprising operating means for m-oving all said carrier means relative to the respective 4associated series of selector means so that said feeler means of said carrier means respectively engage said differently ydisposed stop means of said series of selector means, respectively, for stopping all said carrier means in working positions depending on the relative positions of each series of selector means.
15. Selecting arrangement as defined in claim 14 wherein each carrier means includes spring means for urging said feeler means thereof into sliding contact with all selector -means of the series of selector means associated with the respective carrier means.
16. Selecting arrangement las claimed in claim 14 wherein each series of selector means forms in each of said different relative positions a differently disposed stop means; and comprising yielding operating means for moving all said carrier means relative to the respective associated series of selector means until said carrier means are stopped by said stop means formed by the respective associated series of selector means whereby said carrier means are stopped in selected working positions.
References Cited UNITED STATES PATENTS 942,999 12/1909 Brinton 139-2 3,315,707 4/ 1967 Scheffel.
FOREIGN PATENTS 525,435 8/1940 Great Britain.
HENRY S. IAUDON, Primary Examiner.
|Cited Patent||Filing date||Publication date||Applicant||Title|
|US942999 *||May 1, 1908||Dec 14, 1909||Cecil Charles Brinton||Tuft-yarn carrier for pile-fabric looms.|
|US3315707 *||Jan 21, 1965||Apr 25, 1967||Scheffel Walter||Weft thread changing apparatus in a shuttleless loom|
|GB525435A *||Title not available|
|Citing Patent||Filing date||Publication date||Applicant||Title|
|US3561495 *||May 29, 1969||Feb 9, 1971||Monsanto Textiles Ltd||Yarn carrier for gripper axminster loom|
|US3864190 *||Sep 1, 1972||Feb 4, 1975||Bonded Carpets Ltd||Apparatus for manufacturing carpeting|
|US3963057 *||Nov 29, 1974||Jun 15, 1976||Thomson Shepherd And Company Limited||Method of making pile fabrics and the pile fabric made thereby|
|US3963058 *||Mar 26, 1975||Jun 15, 1976||Thomson Shepherd And Company Limited||Carpet looms|
|US5806568 *||Dec 31, 1996||Sep 15, 1998||N.V. Michel Van De Wiele||Positioning pile yarns in a gripper axminster carpet weaving machine|
|U.S. Classification||139/2, 139/453|
|International Classification||D03D39/00, D03D39/02|