US3777787A - Weft carrier tape guide - Google Patents

Weft carrier tape guide Download PDF

Info

Publication number
US3777787A
US3777787A US00262797A US3777787DA US3777787A US 3777787 A US3777787 A US 3777787A US 00262797 A US00262797 A US 00262797A US 3777787D A US3777787D A US 3777787DA US 3777787 A US3777787 A US 3777787A
Authority
US
United States
Prior art keywords
tape
flexible
tapes
travel
shed
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
US00262797A
Other languages
English (en)
Inventor
D Anderson
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
Application granted granted Critical
Publication of US3777787A publication Critical patent/US3777787A/en
Assigned to DELTA ACQUISTION CORPORATION reassignment DELTA ACQUISTION CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ROCKWELL INTERNATIONAL CORPORATION
Assigned to DRAPER CORPORATION, reassignment DRAPER CORPORATION, CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE APRIL 1,1982 Assignors: DELTA ACQUISITION 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

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
    • 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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms

Definitions

  • the invention relates to shuttleless looms of the type in which weft yarn is supplied from a stationary source and is not carried back and forth through the warp shed by a shuttle or carrier member.
  • the invention pertains to an improved apparatus for guiding and urging the flexible tapes and their respective carrier members toward their intended horizontal path of travel as the carrier members are withdrawn from the warp shed to complete the insertion of a length of weft yarn.
  • each pick of weft is inserted by two reciprocating carrier members disposed in opposed relation and which are fixed on the free ends of flexible tapes which are caused to be wrapped about and extended from oscillating wheel members at each side of the loom.
  • One of these carriers is commonly referred to as the inserting carrier and the other as the weft receiving or extending carrier.
  • Each of the oscillating wheel members has a tape guide element operatively associated therewith which serves to project its flexible tape and the respective carrier member carried thereby in a generally horizontal path as they are caused to enter the warp shed and to be withdrawn therefrom.
  • the carrier members are caused to enter the warp shed and to meet at a position near the center thereof where the inserted loop of weft yarn introduced by the inserting carrier is transferred to the extending carrier. After transfer of the weft, the carriers reverse their direction of travel and as they are withdrawn from the shed the extending carrier draws the loop of weft through the remainder of said shed to complete a single pick.
  • the tape guides are located in close proximity with the edges of the fabric and shed openings as the latter are formed and are adapted to receive and guide their respective tapes and carriers as they are withdrawn from said shed, to a position in readiness to enter the subsequent shed opening.
  • the improved tape guide according to the present invention has corrected the problem of excessive flexing of the carrier tapes and in addition provides a means for visual indication when such a condition exists so that the necessary adjustments can be made to correct it.
  • the improved tape guide for shuttleless looms of the present invention is of conventional configuration having a main guide body with three cooperating surfaces which together form an elongated recess into and from which a tape and its respective carrier are slidably guided.
  • a pair of spaced flexible strip members are attached to the upper surfaces of the main guide body in such a manner as to permit the ends thereof adjacent the warp shed to bend upwardly during flexing of the tapes as the latter are withdrawn with their respective carriers from said warp shed. Additionally these flexible strip members form part of an electrical indicating circuit which when caused to bend upwardly beyond a predetermined amount will complete a circuit to a telltale lamp indicating the tapes are flexing a distance greater than the acceptable amount.
  • a further object of the invention is to provide an improved tape guide which will decrease and relieve the amount of stress to which the flexible tapes are subjected when caused to flex upwardly while being withdrawn from a warp shed.
  • a further and more specific object of the invention is to provide an improved flexible tape guide having a warning device operatively associated therewith for indicating when a flexible tape is being flexed upwardly beyond a predetermined and acceptable amount.
  • FIG. 1 is a view in front elevation and partically in section of a portion of a shuttleless loom showing a tape guide of the prior art and the manner in which a flexible tape and its respective carrier are flexed upwardly during withdrawal from a warp shed,
  • FIG. 2 is a view similar to FIG. 1, but showing a tape guide according to the invention applied thereto,
  • FIG. 3 is a view similar to FIG. 2 but showing a modification thereof which includes a warning device operatively associated with the tape guide
  • FIG. 4 is a sectional view of the tape guide looking in the direction of the indicating arrows of line 4-4 in FIG. 2.
  • reed 114 is carried on a reciprocating lay beam 15 and serves to beat each inserted length of weft into the fell 16 to form fabric indicated at 17.
  • warp yarns 18 extend in a rearwardly direction from the fell 16 through dents 19 of the reed 14 to a conventional 'harness arrangement (not shown) that is effective in shedding sheets of said warp threads to form shed openings into which the carrier 10 is projected and withdrawn during the performance of its intended function.
  • the improved tape guide 13 includes a main guide body 20 having three surfaces 21, 22 and 23 which together form an elongated recess which serves to guide the tape 11 and its respective carrier 10 in a generally horizontal path as they are projected into and withdrawn from the warp shed.
  • the uppermost surfaces 24 and 25 of the tape guides main guide body 20 have flexible longitudinally extending strip members 26 and 27, respectively attached thereto. Any suitable means such as machine screws 28 (FIG. 3) are used to attach the flexible strip members 26 and 27 along a portion of their length to surfaces 24 and 25. As shown in FIG. 3, a portion of the length of the flexible strip members 26 and 27 adjacent the shed or warp yarns 18 are unattached to the main guide body 20 and by means of their attachment screws 28 spaced from this area said strips are biased toward surfaces 24 and 25.
  • Any suitable means such as machine screws 28 (FIG. 3) are used to attach the flexible strip members 26 and 27 along a portion of their length to surfaces 24 and 25.
  • FIG. 3 a portion of the length of the flexible strip members 26 and 27 adjacent the shed or warp yarns 18 are unattached to the main guide body 20 and by means of their attachment screws 28 spaced from this area said strips are biased toward surfaces 24 and 25.
  • the flexibility of the strip members in the area where they are unattached to surfaces 24 and 25 allows the ends thereof to flex upwardly with the tape member 11 as the latter is withdrawn from a warp shed.
  • the warning device for indicating excessive flexing of the tape ll is identified generally by numeral 29 and includes. a generally L shaped support bracket 30 which attaches to and adjacent to the inner end of the main guide body 20.
  • a screw 31 is adjustably assembled in bracket 30 by means of a lock nut 32 and is electrically insulated from said bracket by a grommet member 33 fabricated from any suitable nonconductive material.
  • a flexible metallic strip 34 assembles on the upper surface of the strip member 26 by means of one of the screws 28 and extends to the inner or unattached end of said strip member so as to underlie the lower end of screw 31.
  • Screw 31 forms part of the circuitry to a tell-tale lamp 35'and is fixed in a preselected location so that in the event of excessive flexing of the tape 11 or in other words its moving upwardly beyond an exceptable amount, the metallic strip 34 will make contact with the lower end of the screw 31 to close or complete the circuit to the tell-tale lamp 35 thus indicating that the lower sheet of warp thread is being raised above the acceptable distance for the preferred loom operating conditions.
  • the extending carrier enters a warp shed and is caused to meet the inserting carrier at a point near the center thereof where the loop of weft yarn introduced by said inserting carrier is transferred, in a known manner, to said extending carrier and is drawn through the remainder of the shed to complete a given pick.
  • the upper and lower sheets of warp threads are cuased to move in a direction to close said shed and are in contact with said carriers as they make their exit therefrom.
  • the lower sheet of warp threads has been raised slightly which also slightly raises the tapes and their respective carrier from a true horizontal alignment with the tape guides.
  • an improved tape guide means for directing the tape in a horizontal path of travel, said improved tape guide means comprising means defining a main guide body having three surfaces which together form an elongated recess into which the tape can slide and flexible means secured to said tape guide means at a location spaced from that end adjacent the warp shed for operative cooperation with said main guide body to urge the tape into said elongated recess.
  • said indicating means comprises a lamp member, a lamp member circuit with a switch means therein operatively associated with said flexible means for closing said switch and completing the circuit to said lamp through movement of said strip members by deflection of said tapes from their horizontal path of travel.
  • said switch means includes means to prevent the actuation thereof until said tapes exceed a predetermined amount of deflection from their horizontal path of travel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US00262797A 1972-06-14 1972-06-14 Weft carrier tape guide Expired - Lifetime US3777787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26279772A 1972-06-14 1972-06-14

Publications (1)

Publication Number Publication Date
US3777787A true US3777787A (en) 1973-12-11

Family

ID=22999096

Family Applications (1)

Application Number Title Priority Date Filing Date
US00262797A Expired - Lifetime US3777787A (en) 1972-06-14 1972-06-14 Weft carrier tape guide

Country Status (10)

Country Link
US (1) US3777787A (sk)
JP (1) JPS5212310B2 (sk)
BE (1) BE800861A (sk)
CA (1) CA978060A (sk)
CH (1) CH555909A (sk)
DE (1) DE2330052A1 (sk)
ES (1) ES415291A1 (sk)
FR (1) FR2187969B1 (sk)
GB (1) GB1380512A (sk)
IT (1) IT985283B (sk)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003412A (en) * 1975-09-23 1977-01-18 Rockwell International Corporation Weft carrier positioning device
US5179979A (en) * 1990-07-16 1993-01-19 Sulzer Brothers Limited Rapier loom with inclined tape guide
USRE49987E1 (en) 2013-11-22 2024-05-28 Invensas Llc Multiple plated via arrays of different wire heights on a same substrate

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106500A (en) * 1980-01-29 1981-08-24 Matsushita Electric Ind Co Ltd Reproducer of acoustic signal
JPS60127099U (ja) * 1984-02-02 1985-08-27 パイオニア株式会社 音響付加装置
JPH062400Y2 (ja) * 1984-02-02 1994-01-19 パイオニア株式会社 音響付加装置
JPS6193100U (sk) * 1984-11-22 1986-06-16
JPS61265999A (ja) * 1985-05-20 1986-11-25 Sony Corp 擬似ステレオ方式
JPS61266000A (ja) * 1985-05-20 1986-11-25 Sony Corp 複似ステレオ方式
JPH0740760B2 (ja) * 1985-10-19 1995-05-01 ソニー株式会社 車内ステレオ音響装置
JPS6298900A (ja) * 1985-10-24 1987-05-08 Sony Corp 車内ステレオ音響装置
JPH02241296A (ja) * 1989-03-15 1990-09-25 Matsushita Electric Ind Co Ltd カーオーディオ装置
JP6996196B2 (ja) 2017-09-28 2022-01-17 富士フイルムビジネスイノベーション株式会社 情報処理装置及び情報処理プログラム

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500875A (en) * 1967-10-17 1970-03-17 Burlington Industries Inc Shuttleless loom tension pad stop motion

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3500875A (en) * 1967-10-17 1970-03-17 Burlington Industries Inc Shuttleless loom tension pad stop motion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4003412A (en) * 1975-09-23 1977-01-18 Rockwell International Corporation Weft carrier positioning device
US5179979A (en) * 1990-07-16 1993-01-19 Sulzer Brothers Limited Rapier loom with inclined tape guide
USRE49987E1 (en) 2013-11-22 2024-05-28 Invensas Llc Multiple plated via arrays of different wire heights on a same substrate

Also Published As

Publication number Publication date
CA978060A (en) 1975-11-18
FR2187969B1 (sk) 1976-09-17
FR2187969A1 (sk) 1974-01-18
BE800861A (fr) 1973-10-01
GB1380512A (en) 1975-01-15
JPS4948962A (sk) 1974-05-11
ES415291A1 (es) 1976-02-01
JPS5212310B2 (sk) 1977-04-06
DE2330052A1 (de) 1974-01-03
CH555909A (de) 1974-11-15
IT985283B (it) 1974-11-30

Similar Documents

Publication Publication Date Title
US3777787A (en) Weft carrier tape guide
US3880198A (en) Weaving machine
GB1603572A (en) Belting with tubular edge portions
GB2036816A (en) Narrow fabric and a method and apparatus for producing thesame
US3952778A (en) Selvage forming device
US3124166A (en) Shuttle receiving mechanism for gripper shuttle looms
US3815643A (en) Shed forming device in weave looms
US4398568A (en) Apparatus for stopping and resetting a loom
US3779288A (en) Weft carrier guide
US3494384A (en) Looms
US3927699A (en) Weft carrier control apparatus
US2928427A (en) Filling carrier for shuttleless looms
US2674277A (en) Weft detector for looms
US2705508A (en) Filling carrier for shuttleless looms
US2699185A (en) Reed and shuttle guide for gripper looms
US3298400A (en) Filling carrier for shuttleless looms
US3960186A (en) Weft yarn control device
US2744545A (en) Filling detection for weaving machine
US2354615A (en) Detector for axminster selvage shuttles
US3369572A (en) Selvage stabilizer for looms
US3299910A (en) Filling inserting carrier
US3482608A (en) Weft stop motion for weaving machines
US3119416A (en) Filling carriers for shuttleless looms
US3442301A (en) Loom stop motion
US3513882A (en) Arrangement for producing thread windings on a loom

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