US3874420A - Weft inserting carrier - Google Patents

Weft inserting carrier Download PDF

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Publication number
US3874420A
US3874420A US408293A US40829373A US3874420A US 3874420 A US3874420 A US 3874420A US 408293 A US408293 A US 408293A US 40829373 A US40829373 A US 40829373A US 3874420 A US3874420 A US 3874420A
Authority
US
United States
Prior art keywords
weft
carrier
guide means
hooked portion
pocket
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
US408293A
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English (en)
Inventor
John A Cugini
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.)
Draper Corp
Original Assignee
Rockwell International Corp
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 Rockwell International Corp filed Critical Rockwell International Corp
Priority to US408293A priority Critical patent/US3874420A/en
Priority to CA207,570A priority patent/CA1020055A/en
Priority to DE2441566A priority patent/DE2441566A1/de
Priority to IT53129/74A priority patent/IT1019348B/it
Priority to JP11913574A priority patent/JPS531384B2/ja
Priority to BE149734A priority patent/BE821307A/xx
Priority to CH1406374A priority patent/CH583321A5/xx
Priority to BR8797/74A priority patent/BR7408797D0/pt
Priority to ES431228A priority patent/ES431228A1/es
Priority to FR7435604A priority patent/FR2248355B3/fr
Application granted granted Critical
Publication of US3874420A publication Critical patent/US3874420A/en
Assigned to DRAPER CORPORATION, reassignment DRAPER CORPORATION, CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE APRIL 1,1982 Assignors: DELTA ACQUISITION CORPORATION,
Assigned to DELTA ACQUISTION CORPORATION reassignment DELTA ACQUISTION CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ROCKWELL INTERNATIONAL CORPORATION
Assigned to CITICORP INDUSTRIAL CREDIT INC. reassignment CITICORP INDUSTRIAL CREDIT INC. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DRAPER CORPORATION F/K/A DELTA ACQUISITION CORPORATION
Assigned to STANCHART BUSINESS CREDIT, A CORP. OF CA. reassignment STANCHART BUSINESS CREDIT, A CORP. OF CA. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DRAPER CORPORATION
Assigned to DRAPER CORPORATION, A CORP. OF GEORGIA reassignment DRAPER CORPORATION, A CORP. OF GEORGIA RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CITICORP INDUSTRIAL CREDIT, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D03D47/23—Thread grippers
    • D03D47/233—Carrying grippers

Definitions

  • ABSTRACT [22] Filed: Oct. 23, 1973 A weft lnserting carrier for shuttleless looms of the PP 408,293 type adapted to insert single picks of weft into separate sheds formed by warp threads.
  • the carrier being 52 U.S. c1 139/122 N Provided with a weft receiving Pocket into and from 51 Int.
  • a weft inserting carrier for inserting single picks of weft yarn from a single source of supply in looms of the type to which the instant invention is applicable is shown and described in application Ser. No. 343,797 filed Mar. 22, 1973 and assigned to the same assignee as the present invention.
  • the weft inserting carrier is provided with a means for receiving and inserting into sheds of warp threads any one of a plurality of weft threads drawn from separate sources and which are presented to the carrier in accordance with the dictates of a predetermined pattern.
  • A'selected weft thread is directed into a pocket formed on the rear wall of the carrier and remains threaded therein during the carriers intended function.
  • the carrier Associated with the weft retaining pocket, the carrier includes a combined weft trapping and guide member for assuring entry of the weft into the pocket and for maintaining it therein.
  • the weft inserting carrier comprising the invention is provided with a rear sidewall and a flat top surface connected to said rear sidewall that extends laterally therefrom.
  • a weft receiving pocket is provided in and adjacent one end of the carriers rear sidewall.
  • the flat top surface is provided with a member having a lower portion which defines a hooked member that is effective in maintaining a selected weft yarn within the confines of the weft receiving pocket.
  • This integrally formed member also includes an upper portion that defines a camming surface and is effective in engaging a selected weft yarn which has failed to enter the weft receiving pocket, due to a change in thread tension or a slight vertical movement of the carrier. as the carrier moves toward the shed so as to guide said weft to a position beneath the hook and into said weft receiving pocket.
  • a further and more specific object of the invention is to provide an inserting carrier having means for assuring positive pick up of a selected weft thread and within a range not critical to the location at which a selected weft thread is placed for pick up by said carrier.
  • FIG. 4 is a perspective view of the forward upper portion of the carrier showing the combined hooked member and camming surface for assuring entry and reten-.
  • the inserting carrier comprising the invention and generally indicated in FIGS. 1 and 2 by numeral 10 is formed as a functionally integral member at the free end of a flexible reciprocating member or tape 11.
  • the carrier includes a base portion 12 which by any suitable means such as brazing, is fixed to the end of the tape 11.
  • the carrier Integral with and extending from the base portion 12, the carrier includes a rear sidewall 13 having a substantially flat top surface 14 extending laterally therefrom. Spaced from the rear sidewall 13 and extending parallel therewith, the flat top surface 14 terminates in the form ofa depending lip 15 which forms a portion of the front wall of the carrier 10. Below and in vertical alignment with the lip 15 the carrier is provided with a weft guide member 16 which extends parallel with the rear sidewall 13 and has one end thereof attached to the base portion 12 by means of screws 17.
  • the upper portion of the guide member 16 includes a laterally extending lip 18 (FIG. 2) which is disposed in spaced relation to the lower side of the depending lip 15.
  • a weft clamping member 19 (FIG. 2) is biased into contact with lip 18 by a means not shown and serves to hold an end of weft in a known manner as it is inserted into a shed for presentation to the weft extending carrier.
  • the rear sidewall 13 of the carrier has a V-shaped leading edge extending from a point 20 which is forwardmost of said carrier. Adjacent point 20 and communicating with the upper portion of the carriers V- shaped leading edge, a guide means or weft receiving pocket 21 is provided which extends downwardly at an angle oblique to the direction of movement of the carrier 10.
  • a combined weft trapping and guide member generally identified by numeral 22 is shown in perspective and is fixed to the flat top surface 14 by any suitable means or in the fabrication of the carrier it may be formed as an integral part thereof.
  • This combined weft trapping and guide member 22 includes a downwardly directed or lower hooked portion 23 which shown in FIGS. 2 and 3 is disposed in overlying relation to the carriers weft receiving pocket 21.
  • the lower hooked portion serves to maintain a selected weft thread 24 (FIG. 3) within the confines of the pocket 21 during the carrier's travel into and from the sheds of warp threads.
  • a selected weft thread 24 (FIG. 3)
  • an upwardly and rearwardly flared portion or protrusion is provided which defines a camming surface 25.
  • Camming surface 25 is effective in directing the selected weft thread downwardly and into the pocket 21 in the event it is not in the proper position to be received by said pocket as the carrier moves to the weft pick up position during its initial movement toward the shed.
  • the weft inserting carrier will contact the selected weft yarn 24 with its V-shaped leading edge at a location thereon approximate to that shown in FIG. 3. As the carrier continues to move in the direction of the indicating arrow 26, the weft will slip into the pocket 21 and be trapped therein by the hooked portion 23. Due to unpredictable weft yarn reactions due to any number of reasons such a decrease or increase in tension thereon or even a slight ballooning of the weft can prevent said weft from entering the pocket 21. When such a condition presents itself, the weft rises above the pocket 21 and hooked portion 23 where it then makes contact with the camming surface 25.
  • any one of a plurality of weft thread drawn from separate sources of supply is lowered to the carrier pick up position (FIG. 3) by a guide finger 27 individual thereto.
  • the selected weft thread extends generally horizontally from the edge of the fabric through the eyelet in the guide finger 27 and then to its source of supply.
  • the weft thread 24 extends in a direction oblique to the direction of movement of the carrier 10.
  • the carrier 10 then starts its movement toward the warp shed and makes contact with the selectively positioned weft with its V-shaped leading edge.
  • Continued movement of the carrier in the direction of arrow 26 (FIG. 3) directs the weft along the leading edge of the carrier and into the pocket 21.
  • the weft thread fails to enter the pocket 21, for reasons heretofore described, the weft thread will make contact with the camming surface 25 and by continued movement of the carrier said weft is cammed downwardly and into the pocket 21 where it is trapped by the hooked portion 23.
  • This camming surface provides an increased range for pick up of the weft by the carrier and lessens the criticality of the timing and gaged settings of the carrier which are necessary to accomplish the reception of a selected weft thread therein.
  • a base portion having a rear sidewall protruding therefrom with a flat top surface connected to and extending forwardly from said rear sidewall; b. guide means in said rear sidewall for receiving and guiding a selected weft thread as it is inserted into a warp shed; c. a combined weft trapping and guide member extending forwardly and outwardly from said top surface, said member including 1. a downwardly directed hooked portion located adjacent the upper end of said guide means and spaced laterally outwardly therefrom; and also including 2. a portion that is flared upwardly and rearwardly from said hooked portion to define a camming surface that will move a weft yarn that misses the entrance into the guide means, drawn past said hooked portion, into said guide means.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US408293A 1973-10-23 1973-10-23 Weft inserting carrier Expired - Lifetime US3874420A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
US408293A US3874420A (en) 1973-10-23 1973-10-23 Weft inserting carrier
CA207,570A CA1020055A (en) 1973-10-23 1974-08-22 Weft inserting carrier
DE2441566A DE2441566A1 (de) 1973-10-23 1974-08-30 Schussfaden-einziehtraeger fuer schuetzenlose webmaschinen
IT53129/74A IT1019348B (it) 1973-10-23 1974-09-20 Perfezionamento nei telai tessili senza navetta
JP11913574A JPS531384B2 (da) 1973-10-23 1974-10-16
CH1406374A CH583321A5 (da) 1973-10-23 1974-10-21
BE149734A BE821307A (fr) 1973-10-23 1974-10-21 Porte-fil de trame d'insertion
ES431228A ES431228A1 (es) 1973-10-23 1974-10-22 Perfeccionamientos en porta-introductores de trama para te-lares sin lanzadera.
BR8797/74A BR7408797D0 (pt) 1973-10-23 1974-10-22 Aperfeicoamentos em transportador de insercao de trama para teares sem lancadeira
FR7435604A FR2248355B3 (da) 1973-10-23 1974-10-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US408293A US3874420A (en) 1973-10-23 1973-10-23 Weft inserting carrier

Publications (1)

Publication Number Publication Date
US3874420A true US3874420A (en) 1975-04-01

Family

ID=23615673

Family Applications (1)

Application Number Title Priority Date Filing Date
US408293A Expired - Lifetime US3874420A (en) 1973-10-23 1973-10-23 Weft inserting carrier

Country Status (10)

Country Link
US (1) US3874420A (da)
JP (1) JPS531384B2 (da)
BE (1) BE821307A (da)
BR (1) BR7408797D0 (da)
CA (1) CA1020055A (da)
CH (1) CH583321A5 (da)
DE (1) DE2441566A1 (da)
ES (1) ES431228A1 (da)
FR (1) FR2248355B3 (da)
IT (1) IT1019348B (da)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3931837A (en) * 1975-03-05 1976-01-13 Rockwell International Corporation Carrier for shuttleless loom
US3934621A (en) * 1975-03-18 1976-01-27 Rockwell International Corporation Carrier for shuttleless looms
US3960183A (en) * 1975-02-03 1976-06-01 Rockwell International Corporation Interchangeable weft carrier
FR2357673A1 (fr) * 1976-07-08 1978-02-03 Rueti Ag Maschf Organe d'insertion pour un metier a tisser a griffes
FR2407286A1 (fr) * 1977-10-28 1979-05-25 Hoeck Joseph Couple d'aiguilles pour metiers a rapieres
EP0657569A1 (en) * 1993-10-27 1995-06-14 Interpatent Limited Carrying gripper for looms

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827354C2 (de) * 1978-06-22 1982-07-15 Mertens & Frowein Gmbh & Co Kg Maschinenfabrik, 5620 Velbert Gebergreiferkopf für Greiferwebmaschinen
JPS60126356A (ja) * 1983-12-14 1985-07-05 株式会社石川製作所 無杼織機の緯糸搬送体

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014503A (en) * 1960-03-28 1961-12-26 Draper Corp Filling inserting carrier
US3638686A (en) * 1969-11-27 1972-02-01 Fischer Ag Georg Carriers for filling insertion in a weaving machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014503A (en) * 1960-03-28 1961-12-26 Draper Corp Filling inserting carrier
US3638686A (en) * 1969-11-27 1972-02-01 Fischer Ag Georg Carriers for filling insertion in a weaving machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3960183A (en) * 1975-02-03 1976-06-01 Rockwell International Corporation Interchangeable weft carrier
US3931837A (en) * 1975-03-05 1976-01-13 Rockwell International Corporation Carrier for shuttleless loom
US3934621A (en) * 1975-03-18 1976-01-27 Rockwell International Corporation Carrier for shuttleless looms
FR2357673A1 (fr) * 1976-07-08 1978-02-03 Rueti Ag Maschf Organe d'insertion pour un metier a tisser a griffes
US4112983A (en) * 1976-07-08 1978-09-12 Ruti Machinery Works Ltd Picking bands and drive arrangement for gripper weaving machine
FR2407286A1 (fr) * 1977-10-28 1979-05-25 Hoeck Joseph Couple d'aiguilles pour metiers a rapieres
EP0657569A1 (en) * 1993-10-27 1995-06-14 Interpatent Limited Carrying gripper for looms

Also Published As

Publication number Publication date
IT1019348B (it) 1977-11-10
FR2248355B3 (da) 1977-08-05
ES431228A1 (es) 1976-10-16
JPS531384B2 (da) 1978-01-18
FR2248355A1 (da) 1975-05-16
BR7408797D0 (pt) 1975-08-05
CH583321A5 (da) 1976-12-31
JPS5065639A (da) 1975-06-03
CA1020055A (en) 1977-11-01
BE821307A (fr) 1975-02-17
DE2441566A1 (de) 1975-04-30

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Legal Events

Date Code Title Description
AS Assignment

Owner name: DRAPER CORPORATION,

Free format text: CHANGE OF NAME;ASSIGNOR:DELTA ACQUISITION CORPORATION,;REEL/FRAME:004097/0735

Effective date: 19820920

Owner name: DELTA ACQUISTION CORPORATION; HORNADAY RD., GREENS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ROCKWELL INTERNATIONAL CORPORATION;REEL/FRAME:004113/0020

Effective date: 19820321

AS Assignment

Owner name: CITICORP INDUSTRIAL CREDIT INC., A CORP. OF DE

Free format text: SECURITY INTEREST;ASSIGNOR:DRAPER CORPORATION A CORP. OF GA F/K/A DELTA ACQUISITION CORPORATION;REEL/FRAME:004070/0533

Effective date: 19821021

AS Assignment

Owner name: STANCHART BUSINESS CREDIT, 200 GALLERIA PARKWAY, N

Free format text: SECURITY INTEREST;ASSIGNOR:DRAPER CORPORATION;REEL/FRAME:004539/0198

Effective date: 19860328

AS Assignment

Owner name: DRAPER CORPORATION, GREENSBORO, NORTH CAROLINA A C

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:CITICORP INDUSTRIAL CREDIT, INC.;REEL/FRAME:004664/0583

Effective date: 19860331