US2907092A - Device for separating leased warp threads - Google Patents

Device for separating leased warp threads Download PDF

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Publication number
US2907092A
US2907092A US669790A US66979057A US2907092A US 2907092 A US2907092 A US 2907092A US 669790 A US669790 A US 669790A US 66979057 A US66979057 A US 66979057A US 2907092 A US2907092 A US 2907092A
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US
United States
Prior art keywords
separating
thread
warp
needle
warp threads
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
US669790A
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English (en)
Inventor
Altenweger Alois
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.)
Zellweger Uster AG
Original Assignee
Zellweger Uster 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 Zellweger Uster AG filed Critical Zellweger Uster AG
Application granted granted Critical
Publication of US2907092A publication Critical patent/US2907092A/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
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/16—Apparatus for joining warp ends

Definitions

  • the present invention relates to a device for separating leased warp threads, more particularly to a device for separating a single selvedge thread from .a warp which is being leased.
  • the warp threads are mounted between two clamps.
  • the threads are leased by means of two lease bands.
  • Several devices are known for separating the selvedge thread from the other warp threads.
  • For guiding the lease bands tubes are used through which the bands are drawn and which are oscillatingly and reciprocatingly moved for pushing away the second warp thread and thereby the following warp threads, separating the selvedge thread.
  • a separating needle it is also known to seize, by means of a separating needle, the selvedge thread which has been separated by the leasing device and to push the selvedge thread out of the plane of the warp.
  • a needle includes an oblong element which is resiliently pressed against the selvedge thread and which is provided with a lateral notch which is just large enough to suit the counts of the thread. The needle is moved along the selvedge thread so that the latter is caught by the notch and pushed out of the plane of the warp.
  • Faulty operation of the leasing device causes simultaneous separation of two or more threads.
  • a separating needle as described above, a single thread is separated from the separated group of threads.
  • the separating needle may have a notch at this point, if it is held in a suitable position relative to the selvedge thread by other means. which are composed of several parts so that the size of the notch may be adjusted according to the counts of the thread. Correct sequence of the warp threads is assured only in the immediate neighborhood of the lease. Due to the bends the threads may already be in a wrong position on the elements forming the lease, for example, on the lease bands.
  • numerals 1, 2, 3, 4 designate warp threads, not shown, which are mounted between clamps, not shown.
  • the proper sequence of the threads is assured by a lease which is elfected by lease bands 5 and 6.
  • the latter are individually pulled through tubes .7 and 8 which are connected with a shaft 10 by means of a flange 9.
  • a sleeve 11 is rotatable on the shaft 10 and secured against axial movement by two collars 12.
  • the sleeve 11 is provided with radial pins 11' which are engaged by the prongs of a fork 13 forming the end of a lever 15 swinging on a shaft 14.
  • a cam 16 engaging a follower roller 17 mounted on the lever 15 oscillates the latter, axially reciprocating the shaft 10 and the tubes 7 and 8.
  • the rear end of the shaft 10 has a square cross section and extends through a like hole in an arm 18, permitting axial movement of the shaft 10 in the hole.
  • a lever 20 swingable on a shaft 19 is oscillated by a cam 22 which engages a follower roller 21 mounted on the lever 20.
  • the oscillating movement of the lever 20 is transmitted by a link 23 to the arm 18 which is pivoted to the link 23.
  • the arm 18 can oscillate the shaft 10 independently of the axial movement of the shaft.
  • the cams 16 and 22 are so shaped that the tubes 7 and 8 in cooperation with the lease bands 5 and 6 separate the warp threads in the conventional manner.
  • a separating needle 24 is clamped to a support 26 by a screw 25.
  • the support 26 is rotatably supported by a lever 27 and so urged by a spring 28 that the end 29 of the needle 24 rests against the selvedge thread 1.
  • the lever 27 is swingably supported by a shaft 30 and is provided with a follower roller 32 engaged by a cam 31 for oscillating the lever whereby the needle 24 resting against the thread 1 is moved up and down.
  • the needle 24 will separate only one thread, if the size of the notch 33 corresponds to the diameter of the thread.
  • a device for separating the selvedge thread from a leased warp comprising, in combination, means for guidinglease bands, said means including two spaced members individually guiding a lease band, and means including a vertically reciprocating needle provided with a lateral notch corresponding to the count of said warp thread spaced from the end thereof and adapted during said reciprocating motion to engage said warp and to seize but a single warp thread, said last mentioned notched needle means being'placed between said lease guide members.
  • notched needle reciprocates substantially perpendicularly to the plane of said warp and is spring pressed in a direction normal to said plane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
  • Looms (AREA)
US669790A 1956-07-10 1957-07-03 Device for separating leased warp threads Expired - Lifetime US2907092A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH348937T 1956-07-10

Publications (1)

Publication Number Publication Date
US2907092A true US2907092A (en) 1959-10-06

Family

ID=4508555

Family Applications (1)

Application Number Title Priority Date Filing Date
US669790A Expired - Lifetime US2907092A (en) 1956-07-10 1957-07-03 Device for separating leased warp threads

Country Status (5)

Country Link
US (1) US2907092A (da)
CH (1) CH348937A (da)
DK (1) DK99005C (da)
FR (1) FR1180724A (da)
GB (1) GB839400A (da)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164805A (en) * 1977-06-24 1979-08-21 Zellweger Uster Ltd. Apparatus for dividing warps with leases
US4438553A (en) * 1981-02-10 1984-03-27 Todo Seisakusho Ltd. Full automatic leasing machine for a warp beam containing warps of different colors
US20050028335A1 (en) * 2002-01-30 2005-02-10 Staubli Ag Pfaffikon Device for the separation of threads from a thread layer
EP1748096A1 (de) * 2005-07-25 2007-01-31 Stäubli AG Pfäffikon Vorrichtung und Verfahren zum Separieren eines Kettfadens

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH668277A5 (de) * 1985-06-26 1988-12-15 Zellweger Uster Ag Ueberwachungsvorrichtung fuer doppelfaeden an webkettenknuepfmaschinen.
DE3874424T2 (de) * 1987-06-18 1993-02-18 Teijin Seiki Co Ltd Kettfaedenziehvorrichtung.
JPS6420359A (en) * 1987-07-10 1989-01-24 Teijin Seiki Co Ltd Heald transfer apparatus
JPS6420358A (en) * 1987-07-10 1989-01-24 Teijin Seiki Co Ltd Heald magazine
JPH0351347Y2 (da) * 1987-10-22 1991-11-01

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690606A (en) * 1952-12-11 1954-10-05 Fleischer Svend Sigur Christie Method of regulating a thread separating device for separating threads from a warp

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2690606A (en) * 1952-12-11 1954-10-05 Fleischer Svend Sigur Christie Method of regulating a thread separating device for separating threads from a warp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4164805A (en) * 1977-06-24 1979-08-21 Zellweger Uster Ltd. Apparatus for dividing warps with leases
US4438553A (en) * 1981-02-10 1984-03-27 Todo Seisakusho Ltd. Full automatic leasing machine for a warp beam containing warps of different colors
US20050028335A1 (en) * 2002-01-30 2005-02-10 Staubli Ag Pfaffikon Device for the separation of threads from a thread layer
US7356893B2 (en) * 2002-01-30 2008-04-15 Stäubli Ag Pfäffikon Device for the separation of threads from a thread layer
EP1748096A1 (de) * 2005-07-25 2007-01-31 Stäubli AG Pfäffikon Vorrichtung und Verfahren zum Separieren eines Kettfadens

Also Published As

Publication number Publication date
DK99005C (da) 1964-06-08
FR1180724A (fr) 1959-06-09
CH348937A (de) 1960-09-15
GB839400A (en) 1960-06-29

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