US3343572A - Drop wire separating shaft for a weaving loom - Google Patents

Drop wire separating shaft for a weaving loom Download PDF

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Publication number
US3343572A
US3343572A US483557A US48355765A US3343572A US 3343572 A US3343572 A US 3343572A US 483557 A US483557 A US 483557A US 48355765 A US48355765 A US 48355765A US 3343572 A US3343572 A US 3343572A
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US
United States
Prior art keywords
shaft
separating
weaving loom
drop wires
drop
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
US483557A
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English (en)
Inventor
Geiger Otto
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 US3343572A publication Critical patent/US3343572A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/14—Apparatus for threading warp stop-motion droppers, healds, or reeds
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D51/00—Driving, starting, or stopping arrangements; Automatic stop motions
    • D03D51/18—Automatic stop motions
    • D03D51/20—Warp stop motions

Definitions

  • the present invention relates to an improved separating shaft for separating the warp stop motion drop wires that are arranged in different rows and that are supported by the warp threads on a weaving loom.
  • Warp stop motion In weaving looms, warp threads are continuously monitored by a Warp stop motion. With drop wire-type warp stop motions, there are serrated bars which move parallel to their lengths and also with respect to each other. Positioned over the bars are the drop wires which are supported by the warp threads. When a warp thread breaks, the drop wire associated with the broken warp thread drops onto the bars and prevents them from moving with respect to each other. This engagement, in turn, causes the weaving loom to be stopped. In the electrical monitoring installations, the Warp stop motion drop wire actuates an electrical circuit, thus stopping the weaving loom.
  • the number of warp threads and the number of drop wires associated therewith is so great that there is not sufficient space over the length of the loom to arrange all the drop wires in a single row.
  • a multiplicity of rows of drop Wires arranged parallel to each other is provided.
  • the drop wires in the different rows are separated by drop Wire separating shafts.
  • a fluff consisting of small individual filaments is continuously formed during operation of the loom. This :duif deposits on the drop wire separating shafts and does not drop off of its own accord. The fluff gradually becomes matted with the drop wires and warp threads, and may bring the weaving loom to a standstill or it may produce weaving defects.
  • an improved separating shaft having the shape of a rod that has a profile or outline delimited by a cylindrical surface and that rotates about its longitudinal axis during the operation of the loom.
  • the present invention is directed to the use of a rod as an improved separating shaft for the separation of the warp stop motion drop wires that are arranged in various rows in the weaving loom and are supported by the warp threads, wherein said rod has a profile or outline delimited by a cylindrical surface and is coupled with a driving means that rotates the rod about its longitudinal axis during operation of the loom.
  • the present invention relates to a method for the operation of a warp stop motion having warp stop motion drop wires arranged in various rows in a weaving loom and supported by the warp threads, wherein a rod, disposed between the rows as a separating shaft and having a profile or outline delimited by a cylindrical surface, rotates continuously about its longitudinal axis during the operation of the loom.
  • FIGURE 1 shows a perspective view of a warp stop 3,343,572 Patented Sept. 26, 1967 ICC motion device intended for use on a weaving loom;
  • FIGURES 2 and 3 show examples of the cross-sections of the rod serving as a separating shaft in accordance with this invention.
  • two end supports 11 carry groups of serrated bars 12.
  • Each serrated bar group comprises two outer serrated bars 13 and 14 and a central serrated bar 15.
  • the outer bars 13 and 14 are fixed and the inner bar 15 is mounted for reciprocal movement parallel to its length. This is achieved by appropriate movement of the pins 16, with which each of the bars 15 is connected.
  • the Warp stop motion drop wires which are in continuous movement during operation of the loom, are arranged in rows, one such row being arranged along and above each bar group 12.
  • the individual rows of drop wires are separated from each other and retained in a vertical position by the separating shafts or rods, numbered from 21 to 25, in such a manner that drop wires of different rows cannot Ibecome caught up in each other.
  • each of the separating shafts has a profile or outline delimited by a cylindrical surface extending in its longitudinal direction and distributed over its periphery. Furthermore, the separating shafts rotate continuously during the operation of the loom.
  • the drive producing this continuous rotation is preferably derived or taken from the cloth beam drive (not shown).
  • the driving means being represented for example by the rubber cord 26 which is shown moving in the direction of the arrow 27.
  • the rubber cord 26 partly surrounds each of the separating shafts, as can be seen from FIGURE l, and rotates the shafts by its movement in the direction of the arrow 27. It would, however, also be possible to select some other drive means which would also prove to be practical under othert given structural arrangements.
  • FIGURE 2 shows a cross-section drawn to a larger scale through the separating shafts 21 to 25 shown in FIGURE 1.
  • the .profile or outline of each shaft is formed with a series of grooves 31 uniformly distributed over the periphery.
  • the grooves 31 extend in a longitudinal direction, preferably parallel to the axis 32 of the rod.
  • FIGURE 3 A further example of an advantageous cross-section for a rod serving as a separating shaft is shown (again drawn to larger scale) in FIGURE 3.
  • the shaft is prismatic in shape, its axis again being designated with the reference number 3-2.
  • the profile or outline of the shaft is polygonal, so that the cross-section of the shaft consists of the regular polygon having the sides 33. It is advisable to select a prism having at least eight edges along its length in order to achieve entirely satisfactory removal of the fluff.
  • the prole or outline of the separating shafts or rods 21 to 25 is, as shown, so selected that it is delimited by a cylindrical surface coaxial with the rod.
  • rotation of the separating shaft of this invention not only prevents uff from directly adhering to the shaft but also operates to ⁇ clean and remove fluff from the drop wires when contracted therewith.
  • a warp stop motion for a weaving loom having means for separating the warp stop motion drop wires arranged ⁇ in various rows and supported by the warp threads, the improvement which comprises a separating ',tion.
  • a method for preventing fluff produced from warp threads from matting up on the drop wires and the separating shafts of a warp stop motion of ia weaving loom having warp stop motion wires arranged in different rows and supported by the warp threads which ⁇ comprises positioning a separating shaft between rows of drop wires which has a prole delimited by a cylindrical surface and thereafter rotating said shaft continuously about its longitudinal axis during operation of the weaving loom whereby iiuif from said warp threads is prevented from directly adhering to the shaft and also removed from said drop wires when contacted thereby during their movement on said warp threads.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US483557A 1964-09-03 1965-08-30 Drop wire separating shaft for a weaving loom Expired - Lifetime US3343572A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1150964A CH427686A (de) 1964-09-03 1964-09-03 Kettfadenwächteranordnung einer Webmaschine

Publications (1)

Publication Number Publication Date
US3343572A true US3343572A (en) 1967-09-26

Family

ID=4374166

Family Applications (1)

Application Number Title Priority Date Filing Date
US483557A Expired - Lifetime US3343572A (en) 1964-09-03 1965-08-30 Drop wire separating shaft for a weaving loom

Country Status (4)

Country Link
US (1) US3343572A (de)
BE (1) BE669012A (de)
CH (1) CH427686A (de)
GB (1) GB1047852A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293007A (en) * 1979-05-08 1981-10-06 Sulzer Brothers Limited Holding device for the electrical contact elements of a wrap stop motion of a weaving machine
CN103061013A (zh) * 2012-12-26 2013-04-24 南通纺织职业技术学院 打样机专用穿经机

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3146781C1 (de) * 1981-11-25 1983-03-31 Grob & Co AG, 8810 Horgen, Zürich Mechanischer Kettfadenwaechter

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US652223A (en) * 1899-06-14 1900-06-19 Henry I Harriman Electrical warp stop-motion for looms.
US869643A (en) * 1905-12-29 1907-10-29 Crompton & Knowles Loom Works Warp stop-motion.
US937136A (en) * 1906-11-23 1909-10-19 Crompton & Knowles Loom Works Warp stop-motion for looms.
US1268159A (en) * 1917-07-02 1918-06-04 Crompton & Knowles Loom Works Warp stop-motion.
US1569828A (en) * 1925-10-07 1926-01-12 Draper Corp Warp stop mechanism for looms
US2233552A (en) * 1940-05-10 1941-03-04 W B Hunt Warp stop motion
US2342752A (en) * 1941-12-26 1944-02-29 Crompton & Knowles Loom Works Warp stop motion

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US652223A (en) * 1899-06-14 1900-06-19 Henry I Harriman Electrical warp stop-motion for looms.
US869643A (en) * 1905-12-29 1907-10-29 Crompton & Knowles Loom Works Warp stop-motion.
US937136A (en) * 1906-11-23 1909-10-19 Crompton & Knowles Loom Works Warp stop-motion for looms.
US1268159A (en) * 1917-07-02 1918-06-04 Crompton & Knowles Loom Works Warp stop-motion.
US1569828A (en) * 1925-10-07 1926-01-12 Draper Corp Warp stop mechanism for looms
US2233552A (en) * 1940-05-10 1941-03-04 W B Hunt Warp stop motion
US2342752A (en) * 1941-12-26 1944-02-29 Crompton & Knowles Loom Works Warp stop motion

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293007A (en) * 1979-05-08 1981-10-06 Sulzer Brothers Limited Holding device for the electrical contact elements of a wrap stop motion of a weaving machine
CN103061013A (zh) * 2012-12-26 2013-04-24 南通纺织职业技术学院 打样机专用穿经机

Also Published As

Publication number Publication date
GB1047852A (en) 1966-11-09
CH427686A (de) 1966-12-31
BE669012A (de) 1965-12-16

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