US3688806A - Arrangement of reed teeth on a wave-type loom - Google Patents

Arrangement of reed teeth on a wave-type loom Download PDF

Info

Publication number
US3688806A
US3688806A US17450A US3688806DA US3688806A US 3688806 A US3688806 A US 3688806A US 17450 A US17450 A US 17450A US 3688806D A US3688806D A US 3688806DA US 3688806 A US3688806 A US 3688806A
Authority
US
United States
Prior art keywords
arrangement
teeth
reed teeth
resilient material
reed
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
US17450A
Other languages
English (en)
Inventor
Edgar H Strauss
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.)
Ruti Machinery Works Ltd
Maschinenfabrik Rueti AG
Original Assignee
Maschinenfabrik Rueti 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 Maschinenfabrik Rueti AG filed Critical Maschinenfabrik Rueti AG
Application granted granted Critical
Publication of US3688806A publication Critical patent/US3688806A/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
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/26—Travelling-wave-shed looms
    • D03D47/262—Shedding, weft insertion or beat-up mechanisms
    • D03D47/265—Beat-up mechanisms

Definitions

  • This invention relates to an arrangement of the reed teeth on a wave-type loom and more particularly to a reed teeth arrangement in which a plurality of reed teeth are arranged side by side in a row and, when the loom is operating, are moved successively toward the fabric beat-up, and thereby as a whole, execute an undulatory movement, said arrangement having means for improving the uniformity of the weave produced on the loom.
  • Wave-type looms are known in which the reed teeth are individually operated and wherein the beat-up of the weft thread does not take place simultaneously over the whole width of the loom, but takes place successively or continuously over the width of the loom.
  • the movement of the reed teeth into the beat-up position is kept as precise as possible so that the fabric beat-up line is as straight as possible.
  • a curved or undulatory beat-up line is thereby caused, particularly in the case of fabrics of low weft density. It is of course those reed teeth which move more easily that beat-up the weft thread more compactly than do the other teeth.
  • the arrangement of reed teeth in accordance with this invention is characterized in that a resilient material means is positioned along the row of reed teeth so that the teeth strike this material before reaching their beat-up positions.
  • FIG. 1 is a perspective view of a loom equipped with the reed teeth arrangement according to the invention.
  • FIG. 2 is a detailed illustration of the reed teeth arrangement according to the invention.
  • FIG. 1 The perspective illustration of a wave-type loom or multi-phase weaving machine seen in FIG. 1 shows how the reed teeth are arranged on this machine.
  • the warp threads 12 run from a warp beam 11 over the guide rolls l3 and 14 and through a warp thread monitor 15 and around a roll 16, which can be designed as a shedequalization roll.
  • the warp threads 12 are formed into a shed immediately beyond the roller 16 by means of a heald arrangement comprising substantially horizontal neddles, which are not shown in FIG. 1.
  • An open shed 17 is present at the point where the forward portion of each inserting member or shuttle 18 is located, and a shed change takes place between each two adjacent shuttles 18. This situation is indicated in the drawing by appropriate hatching.
  • a plurality of weft thread inserting members in the form of shuttles 18, which move over the loom simultaneously and successively.
  • the shuttles 18 are moved forwards by the reed teeth 19 acting as drive elements.
  • the reed teeth are in the form of thin blades. They also serve to beatup the inserted weft threads at the fabric beat-up point or fell 20.
  • the shuttles 18 are guided in each shed 17 by the warp threads 12.
  • the reed teeth 19 are incorporated in the arrangement or drive 21, which is firmly secured to the loom frame 22.
  • Two drive shafts 23 and 24, extending through the arrangement 21, impart movement to the reed teeth 19. Each of these shafts has a helical profile or exterior.
  • FIG. 2 shows a cross-section through the arrangement 21 in the direction at right-angles to the axes of the drive shafts 23 and 24.
  • the blade-like reed teeth 19 are shown in the extreme positions of their swinging movements.
  • the reed teeth or blades 19 are swung about the shaft 30 along which they are arranged side by side.
  • One of the sheds 17, the fabric 25 and a shuttle 18 are likewise shown in FIG. 2.
  • two of the heddles 39 for forming the shed are illustrated.
  • the drive shafts 23 and 24 are mounted in openings 31 and 32.
  • the openings are formed in part by the carriers 34.
  • guide elements 33 are provided for the reed teeth 19.
  • the guide elements 33 are thin broadfaced structures, which can be made from sheet metal or sheets of synthetic material by stamping. They are arranged side by side in a row parallel with each other.
  • the guide elements 33 are assembled to form a pack by means of rods 35 which are pushed transversely through them.
  • a blade-like reed tooth 19 is fitted between each pair of adjacent elements 33, the broad sides of the blades 19 being disposed parallel with the faces of the guide elements 33.
  • the reed teeth 19 are prevented from bowing laterally by the guide elements 33.
  • the guide elements 33 and the carriers 34 are interconnected.
  • the two drive shafts 23 and 24 are rotated in the directions indicated by the arrows.
  • the helical profiles of the shafts 23 and 24 contact the reed teeth 19 to cause the prescribed swinging movement of these elements between their extreme positions; the reed teeth or blades as a whole executing a waveslike movement.
  • the upwardly moving reed teeth 19 press against the inclined rear edge of the shuttles 18, so that the shuttles are driven to the left in the illustration shown in FIG. 1.
  • each guide plate 33 contains an opening which includes a first slot 36 from which extends a second slot 37.
  • a length 38 of resilient, yielding material e.g., rubber, is held in the second slot 37.
  • This material is positioned in such a way that the reed teeth 19 strike it before they reach their thread beat-up positions.
  • the material 38 is depressed somewhat from the position shown in broken lines and indicated by the reference numeral 41. In this way an extremely precisely defined, play-free positioning of the reed teeth 19 is obtained during the beat-up of the weft thread. The uniformity of the weave is thus considerably improved.
  • each reed tooth 19 constitutes a double-armed lever, one arm of which extends through the illustrated shed 17 and is longer than the other arm remote from the shed 17 by reference to the shaft 30. It is of advantage to cause the shorter lever arm to strike the resilient material 38. The force applied by the lever arm is thus greater, so that a harder material 38 can be used. Such harder material will, as is well known, retain its resiliency longer than a relatively soft material. Furthermore, this location represents the best available space. Also little fly forms in this area.
  • each guide element 33 contains an orifice 40, and a length of rubber strip of round cross-section is pulled through these orifices 40; this material is slightly drawn tight in the assembled position and is positioned transversely of the elements 33.
  • the arrangement according to the invention can also be such that there is provided at the location 42 a strip of rubber which, like the resilient strip 38, is of elongate cross-section.
  • An arrangement of reed teeth for use on a wavetype loom which comprises a plurality of reed teeth ar ranged side by side in a row; means for moving said teeth, when the loom is operating, successively toward beat-up positions at the fabric beat-up point of the loom whereby said teeth, as a whole, execute an undulatory movement; and resilient material means positioned along the row of reed teeth and spaced therefrom so that the reed teeth strike this material means before reaching their respective beat-up positions.
  • each of the guide elements contains an opening and these openings are aligned when the guide elements are assembled side by side, and the resilient material means is fitted in these openings.
  • each opening takes the form of a first slot from which a second slot extends, and the resilient material means after having been pushed into the second slot is held thereby and then extends into the first slot.
  • each opening takes the form of an orifice and the resilient material means, in the form of a rubber strip, is drawn through these orifices transversely of the guide elements.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US17450A 1969-03-20 1970-03-09 Arrangement of reed teeth on a wave-type loom Expired - Lifetime US3688806A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH420669A CH496830A (de) 1969-03-20 1969-03-20 Anordnung der Webblattzähne

Publications (1)

Publication Number Publication Date
US3688806A true US3688806A (en) 1972-09-05

Family

ID=4271769

Family Applications (1)

Application Number Title Priority Date Filing Date
US17450A Expired - Lifetime US3688806A (en) 1969-03-20 1970-03-09 Arrangement of reed teeth on a wave-type loom

Country Status (4)

Country Link
US (1) US3688806A (de)
CH (1) CH496830A (de)
CS (1) CS164858B2 (de)
GB (1) GB1247655A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963059A (en) * 1973-11-29 1976-06-15 Ruti Machinery Works Ltd. Beating-up arrangement for a wave-type weaving machine
US20060244414A1 (en) * 2005-04-29 2006-11-02 David Lay Device for electrical power supply to a power tool

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204560C (de) *
NL85687C (de) *
US3124164A (en) * 1964-03-10 Shuttle and heddle drive mechanism for
US3263705A (en) * 1962-11-23 1966-08-02 Rudolf H Rossmann Weaving method and loom
CH480467A (de) * 1968-03-29 1969-10-31 Rueti Ag Vormals Casper Honegg Anordnung an einer Wellenwebmaschine zur Betätigung von Lamellen
US3477475A (en) * 1966-11-22 1969-11-11 Rudolf H Rossmann Weaving loom

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204560C (de) *
NL85687C (de) *
US3124164A (en) * 1964-03-10 Shuttle and heddle drive mechanism for
US3263705A (en) * 1962-11-23 1966-08-02 Rudolf H Rossmann Weaving method and loom
US3477475A (en) * 1966-11-22 1969-11-11 Rudolf H Rossmann Weaving loom
CH480467A (de) * 1968-03-29 1969-10-31 Rueti Ag Vormals Casper Honegg Anordnung an einer Wellenwebmaschine zur Betätigung von Lamellen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1,162,294 German Application (Rossmann) Jan. 30, 1964 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963059A (en) * 1973-11-29 1976-06-15 Ruti Machinery Works Ltd. Beating-up arrangement for a wave-type weaving machine
US20060244414A1 (en) * 2005-04-29 2006-11-02 David Lay Device for electrical power supply to a power tool

Also Published As

Publication number Publication date
CH496830A (de) 1970-09-30
GB1247655A (en) 1971-09-29
DE2012103A1 (de) 1970-10-01
DE2012103B2 (de) 1976-05-26
CS164858B2 (de) 1975-11-28

Similar Documents

Publication Publication Date Title
US3871419A (en) Deflecting beam for warp threads in a weaving machine
GB1365000A (en) Looms
US4492254A (en) Apparatus for guiding a fluid medium driven weft thread in the shed of a weaving machine and use of the apparatus at a multiple longitudinal traversing shed weaving machine
US4031926A (en) Loom with means for introducing the filling threads by means of a fluid
US3727646A (en) Apparatus for compensating the deviations of warp tension in weaving looms
US3889719A (en) Weaving machine for producing terry cloth
US3965939A (en) Heddle with guide means thereon for use in a weaving machine for making triaxial fabrics
US3428095A (en) Cloth motion in looms
US3911968A (en) Devices for fluid insertion of filling yarns
US3688806A (en) Arrangement of reed teeth on a wave-type loom
US3640314A (en) Shed-forming apparatus on a loom
US3590880A (en) Apparatus and method for operating a loom
US3910317A (en) Weaving machine for terry cloth
US3682205A (en) Needle loom
US3720236A (en) Arrangement for forming a selvage for use on a loom
US3477475A (en) Weaving loom
US955211A (en) Power-loom for weaving textile fabrics.
US3379223A (en) Beat-up mechanism for travelling-wave shedding looms
GB1016687A (en) Shuttle-less wire weaving loom
US3795261A (en) Selvedges forming apparatus
US3687171A (en) Drive shaft for a wave-type loom
US2125894A (en) Needle weaving loom
US3455343A (en) Temples for shuttleless looms
US3985160A (en) Heddle for a weaving machine for making triaxial fabrics
US3620260A (en) Loom tension-frame holding the woven fabric over its entire width