[go: up one dir, main page]

US3528459A - Loom - Google Patents

Loom Download PDF

Info

Publication number
US3528459A
US3528459A US723684A US3528459DA US3528459A US 3528459 A US3528459 A US 3528459A US 723684 A US723684 A US 723684A US 3528459D A US3528459D A US 3528459DA US 3528459 A US3528459 A US 3528459A
Authority
US
United States
Prior art keywords
weft
loom
plate
blade
changing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US723684A
Other languages
English (en)
Inventor
Erwin Pfarrwaller
Gerd Schmitz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Original Assignee
Sulzer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sulzer AG filed Critical Sulzer AG
Application granted granted Critical
Publication of US3528459A publication Critical patent/US3528459A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms

Definitions

  • Each of one or more weft-changing Jacquard cords serves, when pulled, or when released, to rotate a lever against a spring and thereby to store a weftchanging signal in the stress of that spring, which is engageable with a lifting-plate.
  • the plate can be driven up or down, according to the angular position imposed on it by action of the spring when the plate is freed from a detent, in response to a cyclical rocking motion of two lifting-blades moving in opposite phases at the picking rate.
  • the vertical motion of the lifting-plate up or down from a neutral intermediate position, stores energy in a power spring for subsequent quick actuation of the weftchanging mechanism in one direction or the other when the weft-changing mechanism is released.
  • the motion of the weft-changing mechanism and hence the selection of the weft can be composed of motions produced by plural such power springs due to the action of separate liftingplates.
  • the present invention relates to a loom having a Jacquard mechanism for controlling the shedding of the weft threads and having a weft-changing mechanism for changing the wefts which are to be picked.
  • a Weftchanging mechanism changes the Weft to be picked so that wefts of various types (e.g. of various colors or of various materials) can be picked into the shed according to a program. It will be assumed hereinafter, but only by way of example, that wefts of various colors are being changed in a multi-color loom.
  • the Jacquard machine is used solely to control the warp threads, and the weft-changing mechanism is controlled by a separate control device, e.g. a card dobby, containing on a punched card the program of the color sequence for the wefts which are to be picked.
  • a separate control device e.g. a card dobby, containing on a punched card the program of the color sequence for the wefts which are to be picked.
  • the loom does not contain heddle frames for the warp threads, since the latter are controlled by the Jacquard mechanism.
  • the card dobbyvis used solely to control the weft-changing mechanism.
  • the loom has a weftchanging mechanism for changing the wefts to be picked and a Jacquard mechanism operatively connectedlo control the shedding of the warp threads and also to control the operation of the weft-changing mechanism.
  • the Jacquard mechanism is used to control both the warp threads and the weft-changing mechanism.
  • the operative connection between the Jacquard mechanism and the weftchanging mechanism contains at least one force or energy storage device arranged to store temporarily the energy supplied by the Jacquard mechanism, representative of a weft-changing signal.
  • the operative connection or coupling between the signal energy storage device and the weftchanging mechanism includes a source of power, such as a mechanically driven crank or eccentric, and one or more drive energy storage devices which store energy delivered thereto by this source of power and which deliver that energy to operate the weft-changing mechanism.
  • the signal energy storage device, driven by the Jacquard mechanism can then be of small dimensions and of small storage capacity, so as to be readily operable by means of the J acquard machine itself, for example via Jacquard cords.
  • the substantially greater force needed for fast shifting of the weft-changing mechanism can then be provided by the power drive and can be delivered to the weft-changing mechanism via the drive energy storage device, which can be designed for the large forces supplied by the power drive. In this way power is obtained for very rapid shifting of the weft-changing mechanism so that little time is required for weft-changing within a loom cycle.
  • At least one lifting-plate coupled to a signal energy storage device which is caused to engage and disengage under control of the Jacquard program with suitable elements of the power drive train leading to the weft-changing mechanism.
  • the loom may include stop means, cyclically movable in synchronism with the loom cycle, into and out of position engaging the lifting-plate, so as to stop the latter during the process of energy storage in the signal energy storage device. The energy thus delivered by the Jacquard mechanism, and stored, can then be used at a later phase of the loom cycle to quickly shift the lifting-plate into a position to be engaged by a lifting-blade as a step in the Weft-changing process.
  • FIG. 1 is a diagrammatic front elevational view of a loom according to the invention, seen from the cloth end;
  • FIG. 2 is a plan view on the line 11-11 in FIG. 1;
  • FIG. 3 is a perspective view of the main parts of the weft-changing mechanism of the loom of FIG. 1;
  • FIGS. 4 and 5 are detail sectional views of the energy storage device 31 of the weft-changing mechanism of FIG. 3, shown in two different positions;-
  • FIG. 6 is a diagram showing four positions for the weftchanging mechanism shown in FIG. 3;
  • FIG. 7 is a view in side elevation of the lifting-plate 91 of FIG. 3, shown in a first position with certain associated elements of structure;
  • FIG. 8 is a fragmentary sectional view taken on the line VIlI--VIII in FIG. 7;
  • FIG. 9 is a sectional view taken on the line IXIX in FIG. 7, but including further parts not shown in FIG. 7;
  • FIG. 10 is a side view of part of FIG. 9, seen from the right in FIG. 9;
  • FIG. 11 is a side elevation of the lifting-plate 91 of FIG. 3, together with a part of the associated mechanism, the plate being shown however in an angular position different from that occupied by it in FIG. 7;
  • FIG. 12 is a further side elevation similar to that of FIG. 7, but showing the plate 91 in lifted position.
  • FIGS. 13A through 13H are curves illustrating motions of various parts of the weft-changing mechanism.
  • FIG. 14 is a plan view of some details of FIGS. 7 and 11.
  • the loom has a base wtih two uprights 1 and'2 between which there are a warp beam 50, a cloth beam 3 with the cloth web 4 wound onto it, guide and tension means (not shown) for the warps 22 and cloth 4, and a main drive shaft 5.
  • a coupling 6 with a brake and an electric drive motor 7.
  • the coupling, brake and motor may be on the right side in FIG. 1.
  • FIG. 1 also shows a reed 8 for beating up the weft 10 and, above the loom, a Jacquard mechanism with pull cords 26 passing through a hardness board 40, to form the shed with the warps 22.
  • One or more pull cords 85 extend from the Jacquard mechanism to control a weft-changing mechanism (in the present case a four-weft mechanism) generally designated at 86 in FIG. 1.
  • the loom has a bobbin support 87 with screens 88 for limiting the balloon of the yarn. Between the screens there are weft supply bobbins 89a and 89d.
  • weft is drawn from the bobbins in turn and picked into the shed, as indicated at 10 in FIG. 1, by gripper shuttles 12 running in a shuttle guide 14.
  • the appropriate weft color is selected by the four-weft mechanism 86 and is passed to the shuttle 12 by means which will be described below.
  • the shuttle 12 is picked by a picking motion 13 and runs to a catching motion 15.
  • a selvage tuck-in device 16 is provided at each edge of the cloth, in addition to the motions 13, 15. Each.
  • Each tuck-in device 16 contains a centering device for centering the weft picked, a thread clamp for clamping the weft, and-on the picking side--a cutting device to sever the weft.
  • Each tuck-in device 16 also includes a tuck-in needle which tucks the free weft end into the next shed, forming a selvage at the edge of the cloth.
  • the four-weft mechanism 86 contains two lifting-plates 91 and 92 (FIG. 3) which can move up and down and which will be described in detail below.
  • the plates 91 and 92 constitute separate weft selecting members. They are pivoted at 93 to bell-crank levers 28 and 29 rotatable about stationary pivots 25. At 94 the bell-crank levers are also pivotally conected to weft-changing drive energy storage devices 30 and 31 to be further described below.
  • the storage devices 30, 31 contain springs adapted to move rods 32 and 33. These rods are pivoted to arms 95 of three-arm levers 36 and 37 rotatable about stationary pivots 34.
  • Arms 38 and 39 of the three-arm levers are pivotally connected by pins 40 and 41 to the ends 42 and 43 of a balance lever 35.
  • a link is pivoted to the balance lever 35 at a point 44 which forms a fulcrum for the lever, and the link 45 is also pivoted to a crank arm 46, to whose crank shaft 47 a weft changing drum 21 is attached.
  • shuttle feeders 49a to 49d are adapted to slide in grooves 48a to 48d in the selector drum.
  • a device (not shown) shifts them as required towards the shuttle 12 when they are in the picking line.
  • notches or recesses 52a to 52d are provided in the rear of the drum 21 to accommodate a locking roller 53.
  • This roller is mounted on a lever 54 rotatable about a stationary pivot 55.
  • a rod 56 pivoted to the lever 54 carries a pin 57, which engages a control groove 58 in a disc cam 59.
  • This cam is attached to a shaft 61 operated at a speed equal to the picking speed of the loom, i.e. shaft 61 rotates once per picking cycle.
  • the two weft-changing drive energy storage devices 30 and 31 are identical. Storage device 31 will now be described in detail with reference to FIGS. 4 and 5. A
  • compression spring 67 is supported in a cylindrical casing 65 between two movable spring guides 68 and 69, through which passes a rod 33.
  • the casing 65 is pivoted at 94 to the bell-crank lever 29, and the rod 33 is hinged at its eye 71 to the three-armed lever 37.
  • the rod 33 can slide in a bore in the casing 65.
  • Two shoulders 73 and 72 are provided on the rod against which the spring guides 68 and 69 respectively can bear. These guides are in two parts, so that they can be fastened about the thinner portion 33a of the rod, between shoulders 72 and 73. The two portions of each guide are held together by an end coil of the spring 67.
  • the rod 33 In the pulled-out position shown in FIG. 4, the rod 33 is pulled downwards and outwards relative to the casing 65, so that the spring 67 is compressed downwardly by the guide 68, forced away from the upper portion 65a of the casing by action of the shoulder 73.
  • the spring 67 tends to move the rod 33 relative to the casing 65 until the gaps S disappear.
  • the rod 33 may be moved upwards in FIG. 4 by the spring, or the casing 65 may be moved downwards, or the rod and the casing may both be moved towards each other.
  • S When S is zero, the force storage means 31 is in a central, inoperative or rest position, in which there is not net force tending to shift the relative position of the rod 33 and casing 65.
  • these devices By pulling on the two ends 64 and 71 of the storage devices 30 and 31 apart or by pressing them together, these devices (hereinafter sometimes called spring cylinders) can therefore be brought out of their inoperative central position into an energy storage position, from which they tend to return to the inoperative central position
  • the devices 39 and 31 thus constitute extensible and compressible drive spring elements.
  • damping pistons 78 and 79 are pivoted on arms 76 and 77 of the three-armed levers 36 and 37. These pistons move in cylinders and 81 containing damping fluid, e.g. oil. As the pistons rise or fall, they retard the pivoting movement of the levers 36 and 37 and therefore the weft-changing movement of the drum 21, particularly in the latter stages of any movement.
  • the top and bottom ends of the cylinders 80 and 81 form stops for the pistons therein.
  • Each of the two levers 36 and 37 can take up either of two positions, depending on the switching movements of its corresponding one of the cylinders 30 and 31. To these two positions there correspond the upper and lower positions of pistons 78 and 79. Since the distances of the fulcrum 44 on the balance lever 35 from the ends 42 and 43 of this lever are in the proportion of 1:2, four positions 35a to 35d are possible for this lever, as shown in FIG. 6. Any two adjacent ones of the positions a to d of the fulcrum are at equal distances from one another. In FIG. 6 there are shown the four positions a to d of the fulcrum 44, with the corresponding positions 21a to 21d of the weft selector drum 21 diagrammatically indicated in association therewith.
  • the pins 40 and '41 are thus both in their lowest positions, so that the balance lever 35 is in position 35d (FIG. 6) and the drum 21 is in the position 21d shown on the left in FIG. 6.
  • the shuttle feeder 49d is therefore in the picking line, and the locking roller 53 has entered the recess 52d to lock the weft selector drum 21, all as illustrated in FIG. 3.
  • the two lifting-plates 91 and 92 are identical, and their driving members are also identical. Lifting-plate 91 and the associated driving members will now be described in detail with reference to FIG. 7.
  • the plate contains an aperture 101 the periphery of which includes four portions 1014 to 101d which may be substantially vertical, an arcuate portion 101e lying between portions 101a and 101b, and an arcuate portion 101 lying between the portions 101a and 101d.
  • Two lifting-blades 102 and 103 pass through the apertures 101 in both of plates 91 and 92.
  • the blade 102 is mounted in one arm 104 of a lever 104, 107 and the blade 103 is mounted in one arm 105 of a lever 105, 108.
  • These levers are pivotable on a stationary pivot 106.
  • the arms 107 and 108 of these levers are engaged by driving levers 109 and 111, operated by eccentrics 113 and 114 mounted on a rotatable but non-translational shaft 112.
  • the shaft 112 rotates at the same speed as the loom main shaft so that each of the lifting-blades 102 and 103 carries out one upward and one downward movement per cycle and therefore per pick. These motions are indicated by the arrows 115 in FIG.
  • the strokes of the two lifting-blades are equal, but the range over which the blade 102 moves is somewhat above that over which the blade 103 moves.
  • the blade 102 may engage portion 101e, as shown in FIG. 7, or blade 103 may engage portion 101 as shown in FIG. 12, depending on the position of the plate 91, further described below.
  • the blade 102 can move the plate 91 downwards while the blade 103 can move it upwards.
  • the blades 102 and 103 constitute drive means engageable with the weft selecting members 91 and 92 to effect motion of those members upwardly and downwardly (as seen in FIG. 12) according to the position of those members about their pivots 93.
  • the rods 33 of two further energy storing spring cylinders 115 are pivotally connected each at 116 to the uppermost end of a separate one of the lifting-plates 91 and 92.
  • Each of the cylinders 115 is of the same construction as the cylinders 30 and 31 shown in FIGS. 3 to 5, except that for each an arm 118 of a control lever having three arms 118, 121 and 122, movable about a stationary pivot 119, is hinged to the central portion of the casing 65 of the cylinder 115 by means of a needle bearing 117 (FIG. 8).
  • the cylinders 115 have substantially weaker springs than the springs 67 of cylinders 30 and 31.
  • the cylinders 115 thus constitute extensible and compressible signal spring elements.
  • Each of the lifting-plates 91 and 92 has at the bottom a projection 131 having arcuate edges 132 and 133.
  • a sleeve 135 (FIG 9) is attached to a fixed portion 134 of the loom base and contains a movable rod 136. At the left end as seen in FIG. 9 this rod bears a stop pin 137.
  • a transverse bar 141 connected to the rod 136 by a screw 139, is slidably mounted in slots 138 at the right-hand end of the sleeve 135. The bar carries a roller 143 cooperating with a face cam 142.
  • This cam is operated at the same speed as the loom main shaft, so that the pin or detent 137 takes up the inoperative position shown in solid lines in FIG. 9 once per cycle (on account of the raised portion 142a 0f the cam) and reaches the stop position 137a shown in broken lines under the influence of a compression spring 144 when the roller 141 moves on to the low portion 142b of the cam. In this position the lifting-plates 91 and 92 are prevented from rotating about their pivots 93.
  • the stop pin 137 may act either on the edge 132 (FIG. 7) or on the edge 133 (FIG. 12) of each of the plates 91 and 92. With the two plates in different positions, the stop 137 may be at the edge 132 of one plate and the edge 133 of the other.
  • FIG. 13A illustrates the vertical movement of the harness cords 26 and and therfore of the warp threads.
  • FIG. 13B shows the movement of the lifting-blade 102 and
  • FIG. 130 shows that of the lifting-blade 103.
  • the solid and dash line curves show the vertical movement of the lifting plates 91 and 92 respectively, caused by the lifting-blades.
  • FIG. 13E shows the backward and forward pivoting of the plates 91 and 92 about their pivots 93 caused by the harness cords 85.
  • FIG. 13F shows the movement of the stop 137.
  • FIG. 13G shows the movement of the locking rollers 53
  • FIG. 13H shows the movement of the weft selector drum 21.
  • the mode of operation of the apparatus is as follows:
  • the weft-changing drum 21 shifts quickly at phase X in FIG. 13H from the position 21d to another position, for example the position 21a on the assumption that blade 92 had been rocked clockwise so as to be lifted by blade 103.
  • the locking roller 53 returns to locking position as indicated by the middle lower portion of FIG. 13G.
  • the picking operation may begin.
  • the above-described storage of energy in cylinder 115 is employed only for the second next pick.
  • a first portion of the rocking motion extends to phase i.
  • the portion 1010 of the boundary of the cut-out 101 comes into engagement with the blade 103 now moved approximately halfway along its downward path of motion. It is only upon further downward motion of the blade 103, occurring at the phase k in FIG. 13E, that the blade 103 comes into position below the arc 1011 of the cut-out 101.
  • the plate 91 is rotated through a second are about its axis 93 in the clockwise direction under influence of the cylinder 115, this motion ending at the phase m in FIG. 13E.
  • the position of the plate 91 shown in FIG. 11 has now been reached. In this position the blade 103 is in its lowest position, whereas the blade 102 is in its highest position.
  • the blade 102 has reached its uppermost position, shown for it in FIG. 11, at phase q in FIG. 133 while blade 103 has reached its lowest position at phase r in FIG. 13C. Thereupon the blades 102 and 103 move respectively downwardly and upwardly, at the phases s and t in FIGS. 13B and 13C respectively, but without effect on the position of plate 91.
  • the rising blade 103 engages the are 101] of blade 91 at phase u of FIG. 13D.
  • the blade 102 may or may not simultaneously come into contact with the plate 92 at its arc 101e, depending on the angular position of plate 92. In this way, at phase v the plate 91 will be moved upwardly so that at of the next loom cycle, i.e.
  • the energy storage cylinder 30 will have been shifted to its opposite extreme or compressed position.
  • the weft-changing drum 21 will move, at phase 151, from its position 21a to another position, for example the position 210 (FIG. 13H), under influence of the energy stored in the spring of the cylinder 30.
  • the elements of structure have now been brought into the position illustrated in FIG. 12.
  • the switching or control lever 118 When the cord is allowed to descend at phase 152 of FIG. 13A, the switching or control lever 118 is rotated in counterclockwise sense about its axis 119, as seen in FIG. 12, by operation of the spring 127. In this process the storage cylinder 115 is pulled out or extended, and returns to the opposite condition of energy storage, i.e. the pulledout position, initially occupied by it. This constitutes preparation for counterclockwise rotation of plate 91 about its axis 93.
  • the lifting-plate 91 is rocked counterclockwise in two steps about its axis 93 at the phase 154 of FIG. 13E by operation of the cylinder 115.
  • the plate 91 is now positioned to be entrained by the blade 102 at the arc 1012 of the cut-out 101 upon the next downward motion of that blade.
  • the cylinder 30 is again shifted into the pulled-out stressed position, and the drum 21 shifts immediately to a new position when the locking cylinder 53 is withdrawn. The elements then have returned to the position shown in FIG. 7.
  • the dash-line curves in FIGS. 13A, D and E represent possible courses for the position of the Jacquard cord 85, for the vertical position of plate 92, and for the angular position of plate 92 respectively, all opposite in phase to the position shown by the full-line curves in those figures.
  • the motions of the plate 92 and of its controlling cord may however be the same as and in phase with those of the plate 91.
  • the dash-line curve in FIG. 13H illustrates other possible motions for the weft-changing drum, from position 21a to position 21d and thereafter from position 21d to position 21b. Insertion of the shuttle begins for example at of the loom cycle when the shed has almost reached open position and the cords 26 have almost ceased their motion. Consequently the cords 85 cannot now either be used for storage of energy in the cylinder 115, any more than the cords 26. This energy must therefore have been stored at the phases J and S in FIG. 13A, at which times the cords 85 are in motion. It is only at these times that these cords can be moved.
  • the blades 102 and 103 together with the elements 104 to 109, 111, 113 and 114 constitute a drive train through which the relatively large forces required for setting the drive cylinders 30 and 31 can be brought to bear.
  • Setting is here used to refer to the stressing of the springs in those cylinders with consequent storage of energy therein.
  • the strong springs of the cylinders 30 and 31 are required for a sufiiciently rapid change of the weft-changing drum.
  • the forces necessary thus to set the cylinders 30 and 31 are derived from the blades 102 and 103 via the plates 91 and 92. Control of the plates, i.e.
  • two plates 91 and 92 are required for four-color (four weft) operation (as in the embodiment described), and three plates are required when selection is to be made among six wefts. Only one plate is necessary for selection among two wefts.
  • a switching or drive mechanism comprising a lever such as the lever 28, a drive cylinder such as the cylinder 30 and elements '102, 103, 113 and 114 of the drive, and a signal or control mechanism comprising elements 115, 118 and 85.
  • the power cylinders 30 and 31 and the appurtenant drive must be provided.
  • FIG. 2 illustrates a compact form of construction in which the shafts 119 and 25 are combined, the control levers 118 and switching levers 28 being pivoted about that axis.
  • the invention can also be employed with looms employing other types of picking mechanism such as gripper needles, or air or water-stream picking systems.
  • the drum 21 may be modified into a suitable weft-changing element.
  • a loom comprising a Jacquard mechanism, warp shedding means under control of said mechanism, weft picking means, plural position weft changing means, a weft selecting member movable in opposite first directions and movable in opposite second directions, an extensible and compressible signal spring element coupled between the Jacquard mechanism and Weft selecting member for motion of the latter in said first directions in response to motions of the Jacquard mechanism, an extensible and compressible drive spring elment coupled between said member anl weft changing means for motion of the latter in response to motions of the member in said second directions, and drive means engageable with said member for motion of the latter in said second opposite directions according to the position of said member along said opposite first directions.
  • a loom comprising a drive, a Jacquard mechanism, warp shedding means under control of said mechanism, weft picking means, releasably lockable plural-position means to support a plurality of weft feeders, an extensible and compressible signal spring element under control of the Jacquard mechanism, an extensible and compressible drive spring element having two ends coupled at one end to said support means, two reciprocable lifting-blades movable cyclically in opposite phases under control of said drive, a lifting-plate coupled to the other end of said drive spring element for opposite extensions thereof in response to movements of the lifting-plate in opposite first directions, said plate being reversibly movable in opposite second directions under influence of said signal spring element between two positions in each of which a separate one of said lifting-blades drives said plate in an opposite one of said first directions, and stop means cyclically movable under influence of said drive to limit motion of said plate in said second directions to selected phases of the loom cycle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US723684A 1967-04-27 1968-04-24 Loom Expired - Lifetime US3528459A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH604367A CH473255A (de) 1967-04-27 1967-04-27 Webmaschine

Publications (1)

Publication Number Publication Date
US3528459A true US3528459A (en) 1970-09-15

Family

ID=4303294

Family Applications (1)

Application Number Title Priority Date Filing Date
US723684A Expired - Lifetime US3528459A (en) 1967-04-27 1968-04-24 Loom

Country Status (7)

Country Link
US (1) US3528459A (de)
JP (1) JPS4930032B1 (de)
AT (1) AT286198B (de)
BE (1) BE714188A (de)
CH (1) CH473255A (de)
FR (1) FR1552420A (de)
GB (1) GB1216762A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612109A (en) * 1969-03-18 1971-10-12 Sulzer Ag Weaving machine
US4936355A (en) * 1988-04-25 1990-06-26 Sulzer Brothers Limited Weft mixer for a loom
US20240376645A1 (en) * 2023-05-10 2024-11-14 Pinghu Dajie Art & Crafts goods Co., Ltd. Computerized chenille jacquard carpet machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2523603A1 (en) * 1982-03-19 1983-09-23 Cheboxarsky Mashstr Zavod Shuttleless loom control - uses hydraulic system to connect programmer to colour change unit
EP0467824A1 (de) * 1990-07-16 1992-01-22 GebràœDer Sulzer Aktiengesellschaft Webmaschine mit einer Mehrschussvorrichtung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US159653A (en) * 1875-02-09 Improvement in looms
US2123561A (en) * 1937-10-22 1938-07-12 Bond Paul Shuttle-box position selector or indicator
US2490589A (en) * 1947-04-26 1949-12-06 Arnold W Gage Shuttle control mechanism for narrow ware looms
US3111144A (en) * 1960-04-26 1963-11-19 Sulzer Ag Method and apparatus for selectively presenting weft threads to weft thread inserting means in weaving machines
FR1480838A (de) * 1967-08-09

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US159653A (en) * 1875-02-09 Improvement in looms
FR1480838A (de) * 1967-08-09
US2123561A (en) * 1937-10-22 1938-07-12 Bond Paul Shuttle-box position selector or indicator
US2490589A (en) * 1947-04-26 1949-12-06 Arnold W Gage Shuttle control mechanism for narrow ware looms
US3111144A (en) * 1960-04-26 1963-11-19 Sulzer Ag Method and apparatus for selectively presenting weft threads to weft thread inserting means in weaving machines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3612109A (en) * 1969-03-18 1971-10-12 Sulzer Ag Weaving machine
US4936355A (en) * 1988-04-25 1990-06-26 Sulzer Brothers Limited Weft mixer for a loom
US20240376645A1 (en) * 2023-05-10 2024-11-14 Pinghu Dajie Art & Crafts goods Co., Ltd. Computerized chenille jacquard carpet machine

Also Published As

Publication number Publication date
FR1552420A (de) 1969-01-03
BE714188A (de) 1968-10-25
CH473255A (de) 1969-05-31
GB1216762A (en) 1970-12-23
AT286198B (de) 1970-11-25
DE1710356A1 (de) 1972-04-20
DE1710356B2 (de) 1973-02-15
JPS4930032B1 (de) 1974-08-09

Similar Documents

Publication Publication Date Title
US3528459A (en) Loom
US2817367A (en) Weaving machine
US3499474A (en) Method and apparatus for forming selvages on cloth
US3441059A (en) Loom having variable stroke weft thread clamp
US3865148A (en) Jacquard machine
US2938547A (en) Weft holding means for weaving looms with continuous weft feed
US3565121A (en) Weft selecting and presenting apparatus
US3910317A (en) Weaving machine for terry cloth
US2152255A (en) Method and loom for weaving
US3339589A (en) Sley motion for terry loom
US3578032A (en) Loom having a jacquard mechanism and a weft changing mechanism
US2602472A (en) Method and means for changing the clamping force at which and during each time a weft thread end is temporarily held during weaving on looms
US2830623A (en) Inside selvedge motion for looms
US3493013A (en) Manufacture of a leno interlacing
US3456691A (en) Shed-forming apparatus for a loom
US3481370A (en) Selective weft depositors for shuttleless looms
US3376900A (en) Looms operating with multi-color stationary weft supplies
US3315707A (en) Weft thread changing apparatus in a shuttleless loom
US2727538A (en) Dobby loom and method of weaving
US3322158A (en) Method and means for actuating an element of a weaving machine
US2609845A (en) Two-shuttle pick and pick shuttle changing loom
US3361164A (en) Method and apparatus for weaving fabrics with severed weft yarns and fabric made by the method and apparatus
US2709459A (en) Control for thread cutter
US1363492A (en) Stop mechanism for looms
US3230983A (en) Apparatus for guiding the harnesses of a loom