US3171443A - Selvage forming mechanism - Google Patents

Selvage forming mechanism Download PDF

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Publication number
US3171443A
US3171443A US343671A US34367164A US3171443A US 3171443 A US3171443 A US 3171443A US 343671 A US343671 A US 343671A US 34367164 A US34367164 A US 34367164A US 3171443 A US3171443 A US 3171443A
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United States
Prior art keywords
selvage
warps
warp
weft
shed
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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
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US343671A
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English (en)
Inventor
Kenneth J Hall
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Leesona Corp
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Crompton and Knowles Corp
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Filing date
Publication date
Application filed by Crompton and Knowles Corp filed Critical Crompton and Knowles Corp
Priority to US343671A priority Critical patent/US3171443A/en
Priority to GB14292/64A priority patent/GB1055082A/en
Priority to FR44748A priority patent/FR1397593A/fr
Priority to DE19641535329 priority patent/DE1535329A1/de
Priority to NL6405262A priority patent/NL6405262A/xx
Priority to BE648061D priority patent/BE648061A/xx
Priority to CH659164A priority patent/CH423655A/fr
Application granted granted Critical
Publication of US3171443A publication Critical patent/US3171443A/en
Anticipated expiration legal-status Critical
Assigned to LEESONA CORPORATION, A CORP. OF reassignment LEESONA CORPORATION, A CORP. OF ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CROMPTON & KNOWLES CORPORATION
Expired - Lifetime legal-status Critical Current

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    • 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
    • D03D47/40—Forming selvedges
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00—Leno or similar shedding mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00—Leno or similar shedding mechanisms
    • D03C7/06—Mechanisms having eyed needles for moving warp threads from side to side of other warp threads

Definitions

  • This invention relates to a selvage and mechanism for producing it in a loom operating preferably with a stationary weft supply and having means, such as a shuttle, to draw the weft into a warp shed.
  • the weft in such looms is frequently laid in as separate, disconnected picks of weft.
  • the invention is not limited to looms operating with shuttles, or looms which necessarily lay separate picks of weft.
  • the invention is illustrated herein in connection with a selvaging unit or mechanism for operation with crossing and non-crossing pairs of selvage warps. This mechanism is not claimed herein, but is the subject matter of copending application Serial No. 335,130.
  • a further advantage growing out of the use of multiple wefts in a shed will be apparent from a comparison of the degree to which several wefts in one shed can be accommodated relative to the degree possible with the same number of wefts each in a single shed.
  • the warps cross for each weft and are therefore between adjacent wefts and prevent the latter from being pressed close to each other.
  • any two wefts are separated by two spaces, one above and one below, their points of closest approach.
  • the wefts have assigned to them less total space than that which the same number of wefts would require if they were each in a single shed. A result of this deformation of the wefts is that the selvage is thinner than it could be if made according to the patent mentioned.
  • FIGURE 1 is a plan view of a loom having the selvage forming mechanism applied to it.
  • FIGURE 2 is a plan view of the right-hand end of FIGURE 1,
  • FIGURE 3 is a detail side elevation of the selvage forming unit and connected parts as seen looking in the direction of arrow 3, FIGURE 1, on an enlarged scale,
  • FIGURE 5 is a front elevation looking in the direction of arrow 5, FIGURE 3, parts being broken away,
  • FIGURE 11 is a perspective view showing the needles and the positively moved crossing warp member and warp moved deflector
  • FIGURE 13 is an enlarged plan view of the lower right-hand part of FIGURE 2,
  • FIGURES 1621 are diagrammatic views showing the operation of the deflector blocks and the control they exercise over the crossing selvage threads.
  • FIGURE 22 is an enlarged section on line 2222, FIGURE 5,
  • FIGURE 23 is a plan view of the right-hand temple with one form of selvage guide plate attached thereto,
  • FIGURE 26 is an enlarged vertical section on line 2626, FIGURE 25,
  • FIGURE 27 is a fragmentary perspective view of the bottom jaw of the guide means shown in FIGURE 25,
  • FIGURE 28 is a side elevation of a second form of guide means
  • FIGURE 29 is a plan view of the guide means shown in FIGURE 28,
  • FIGURE 30 is an enlarged diagrammatic plan view of the invention in which the selvage warps are crossed once for every two picks of weft,
  • FIGURE 31 is a view similar to FIGURE 30 in which the selvage warps are crossed once for every three picks,
  • FIGURE 32 is a View similar to FIGURE 30 in which the selvage warps are crossed once for every 4 picks,
  • FIGURE 33 is a diagrammatic end view of the selvage showing one weft thread for every crossing of warp threads
  • FIGURE 34 is a diagrammatic view showing the wefts in the position they occupy in FIGURE 33 but with the warp removed, and
  • FIGURE 35 is a diagrammatic end view of the selvage showing the shape assumed by the wefts when three of them are in the same selvage warp shed.
  • FIGURES 1, 2 and 4 show a loom of general construction such as can be used to form the selvage-and having the usual frame including loomsides and 11 and arch structure 12.
  • a dobby 13 is shown as an example of Warp controlling mechanism and will have jack levers14 connected by lifter cords 15 to harnessframes 16 for controlling the nonselvage warp threads of. the loom..
  • One of the jack levers,.designated I herein, is not connected to a harness frame-but is reserved for operation of the mechanism as will be described hereinafter and may be considered to be an actuator, or part of an actuator system.
  • FIGURE 4 A supply of selvage warpthreads is shown in FIGURE 4 for the right-hand part of the loom shown in FIGURE 1 and includes a spool S rotatable 'on-a fixed stud 20 and having four warp threads wound thereon for the form of the invention specifically illustrated herein.
  • Warps 21 and 22 are respectively top and bottom noncrossing warps and the laterally deflectable crossing warps are indicated at 23- and 24. These -war-ps unwind from the spool and are passed'arounda roll 25 which may be the loom whip 1 roll.
  • the selvage warps already mentioned move in the Stud 20 is secured in a stand 28 fastened to a stationary part 29-of the loom.
  • a rod 30 fast with the stand 28 has secured thereto a comb 31 to separate theselvage warps.
  • a cord 32 having one and secured to rod 30 extends around a pulley 33 fast with spool S and; has its other end connected to a spring 34 anchored on rod 30. The cord and spring prevent overrunning of the spool but permit the latter to turn.
  • the loom has a lay 35 provided with a reed 36 which guides the shuttle 37 as it-crosses the lay to leave weft threads inthe warp shed.
  • the matter thus far described may be of conventional form and any similar means which will supply the selvage warps-and have the equivalent of jack lever I may be used.
  • cord 40 passes over a pulley 43 and then on to the right to pulley 44' to which it is fastened.
  • cord 41 passes around a pulley 45 and then to a pulley 46 to which it. is fastened.
  • the pulleys 43 and'45 are supported by the arch structure 12 in usual manner. 7
  • the pulleys 44 and 46 are each operatively connected to selvage forming mechanism, one at the right and the other at the left-hand side of the loom, and. since these mechanisms are similar only one of them will be described in detail, namely, the one at the right as viewed in FIG- URE 1 and connected topulley 44.
  • V P The arch structure 12 has secured to it similar from and rear supports 50 and 51 eachformed with a horizontal slot 52.. A, shaft 53. is mounted on the supports and has the pulley 44 secured .to it, see FIGURE 15. When pulley 44 is turned due to operation of the dobby jack I, shaft 53 will turn with it.
  • Shaft 53 is rotatable in bearings 54 and 55 held in adjustable position along the slots 52 of supports 50 and 51. Since the fittings on supports 50 and 51 are the same except for their hand, support 50 only will be described in detail.
  • the left-hand end'of the loom as viewed in FIG- URE 1 will be provided with supports similar to supports 50 and 51, and the description of, support 50 will suffice for both ends of the loom as well as the rear supports 51, it being understood that the pulley 44 and 46 are adjacent'to the front supports 50.
  • the bearing 54 has a screw treaded shank which extends rearwardly through slot 52 from a head 61, see FIGURE 15.
  • a nut 62 is threaded up tightly against support 50 on shank 60, thus holding the bearing firmly in place. By loosening nut 62 the bearing can he slid along slot 52 to the desired location and the nut tightened to hold the new adjustment when this v adjustment is necessary to accommodate fabricsof different widths.
  • Sprockets 63 and 64 and pulley 44 are secured to shaft 53 by set screws 65 as shownin FIGURE 15 T he bearing 54 hasa bushing 66 inwhichshaft 53zturns.
  • a secondvbearing 70 having a screw threaded shank 71 for a nut 72 which draws a shoulder 73 against the support 50, see FIGURE 15.
  • the bearing 70 can be adjusted alongslot S2 in a'manner similar to the adjustment already described for hearing 54.
  • a bushing 74' in bearing '70 has astub shaft 75 rotatable in it. Sprockets 76 and 77- as shown in that figure are secured to the stub shaft by set screws 7 8.
  • FIGURES l2 and 13 show that sprockets 64 and 77, which are the same size, mesh with a chain 79 which causes stub shaft75 to turn with shaft 53 to drive an operating system, to be described below.
  • a chain 80 has one of its ends atta'ched'at 81 to sprocket 63 and has its other end fastened to a connector 82 the lower end of which is connected asat 83 to the upper part of a selvaging unit U, see FIGURE 3.
  • T he lower end of unit U is connected at 84'to the upper end of a connector 85 the lower end of which is attached to-a spring 86 the lower end of whichis held in a clip 87 adjustably held along fixed rod 88' by set screw 89, see FIGURE: 1.
  • Spring 86 exerts a downward force and tends to lower unit U but yields to permit upward movement of the unit when jack J moves to the left, FIGUREl, and may be considered as forming an actuator system jointly with the jack lever J and with the cords 40 41, pulleys 4345, pulleys 44-46, sprocket 63 and chain 80 with connectors 82 and 85.
  • the operating system includes achain'95 which extends over and meshes with sprocket 76 and the vertical run of it which is close to chain 80 extends down and is attached to a connector 96 the lower end-of which is connected at 97 to a selvage warp thread deflector member. 98, see FIGURE 3, which is driven by the operating system;
  • the previously mentioned stud 104 is mounted on a fixed stand 110, see FIGURES l and 3, having a horizonmovement of the unit U so that it can be close to the selvage of cloths of diiferent widthsin the loom.
  • the unit U is formed essentially of three relatively V movableparts including an elongated upright carrier composed of several parts'fixed relative to each other,
  • Upright member 120 has right and left-hand (FIGURE 5) vertical elongated elements 122 and 123 respectively, FIGURE 5, made preferably of pressed sheet metal and of U-shaped cross section, their concave parts facing each other.
  • the wider element 122 is separated from element 123 by a vertical slot 124.
  • Element 122, FIGURE 8 has parallel flat slides or flanges 125 and 126 which align respectively with sides or flanges 127 and 128 of element 123.
  • the flanges are substantially parallel to each other.
  • Each extreme end of member 120 has a head 13%) fitting between elements 122 and 123 and held in place by screws 131.
  • a needle support 14 Adjacent to each head is a needle support 14, see FIGURES 3, 5 and 22, fitting between the elements 122 and 123 and held to the unit by screws 141.
  • Each support 141) is made of two parts, one of them 142 being held by the screws 141 and the other, shown at 143 in FIGURE 22, having an eye 144 and a thread shank 145 extending through a hole 146 in part 142 and having a nut 147 threaded on it.
  • Upstanding from part 142 is a grooved needle guide 148 in which fits a needle.
  • Each needle passes through its eye 144 and is held in fixed position relative to members 122 and 123 when its nut 147 is tightened.
  • the positively moved warp deflector member 98 is shown in FIGURE 11 in which part of element 122 is broken away.
  • Member 98 has a body 160 formed with upper and lower ears 161 and 162 respectively attached to connectors 96 and 99.
  • the body 160 has a vertical slot 163, see FIGURE 8, through which the crossing warps 23 and 24 can pass.
  • a warp deflector plate 165 is slidable on the carrier 120 and is secured by screws 166 to member 98. Lengthwise notches or slots 167 in the vertical edges of plate 165 receive the adjacent edges of the flanges 125 and 127.
  • Slots 167 are formed by front ridges 168 (to the left in FIGURE 11) extending the full height of plate 165, and short ridges 169 formed on short platforms 170 which stand out from the main central body of plate 165 and are in direct contact with part 160, see FIGURES 8 and 11.
  • the slots 167 receive flanges 125 and 127 and prevent the plate 165 from being displaced laterally from carrier 120.
  • Plate 165 has two oblique slots 172 and 173 which are inclined toward each other and also toward the element 123, see FIGURE 11.
  • the deflectable warp threads 23 and 24 pass, respectively, through slots 172 and 173.
  • the crossing warps will be threaded as previously described, and in addition noncrossing warp 21, see FIGURES 3, 4 and 5, will pass through eyelets 154 from the rear, the right in FIGURE 4, then up over the top guide 132, fitting into groove 135, then down along needle to and through its eye 152 and then forwardly to the cloth or fabric F.
  • warp 22 will pass through eyelets 155, around bottom guide 132, up along needle 151, through its eye 152 and thence to the cloth.
  • FIGURE 16 the needles 158 and 151 are shown as approaching their lowest position and the plates and nearing the upper limit of their movements. Arrows D, E and G indicate directions of motion which, however, are about to cease preparatory to reversal.
  • Warp 23 is being raised positively by plate 165 and is in the lower left-hand end of its slot 172, and is able to assist in lifting plate 180 by being in the upper left end of slot 190.
  • warp 24 is to the right in slot 173 and helps to lift plate 180 by being in the right-hand upper part of slot 191.
  • Warp 23 is to the left, FIGURE 16, and behind needle 159, and warp 24 is to the right and in front of needle 150.
  • FIGS 8-10 taken generally on line 8'-8 of FIGURE 5 show structurally tion'will be more particularly described in the matter which follows.
  • a V V v In carrying the invention into effect the selvage warps 21-24 are manipulated in a manner different from that which has already been described hereinbefore.
  • FIG- URES 30-32 show by way of example that the noncrossing warps 21 and 22 and the crossing warps 23 and 24will be held in open shed position for two, three or 'four successive beats of the loom; As illustrated in these figures.
  • the fabric F is a plain weave with the regular warps 'W crossing every pick.
  • each weft is laid, it is cut by a cutter 246 subsequent to being inserted in the slot 243 thereby leaving a tail of weft T depending from the holding means.
  • the rearward ends of members 240 and 241 are so shaped that together they form a V-shaped opening 247 effective to receive weft threads WT.
  • Members 240 and 241 act as two opposing jaws which grip the wefts WT as they enter the slot 243 through the opening 247. To insure against the wefts slipping back towards the rear of the loom, opposing edges 24?
  • members 240 and 241 respectively are provided with serrations 251 which are so shaped as to allow the wefts to move forwardly only, the serrations 251 being shown in detail in FIGURE 27.
  • the weft tails T advance along the slot 243 until they reach the wider portion 244 which allows them to be released from the holding means.
  • a flat weft deflector member 254 can be welded to extension 240, and shaped substantially as indicated by the dotted lines in FIGURE 25.
  • FIGURE 33 Three successive picks of weft in single sheds according 10 to the aforesaid patent are shown herein in FIGURE 33, and FIGURE 34 shows the three picks of FIGURE 33 with the warp threads removed. By contrast the three picks are then shown in one shed in FIGURE 35.
  • Mechanism is also provided to hold two or more wefts in an open warp shed between successive crossings of the selvage warps.
  • This mechanism is simple in construction and has a rearwardly opening slot to receive the wefts and notches or teeth to prevent rearward movement of the wefts after they have entered the slot.
  • a selvage forming mechanism for a loom in which the cloth moves forwardly as it is woven, a reciprocating harness actuator system, a selvage forming unit operatively connected to said system, a pair of crossing and a pair of noncrossing selvage warp threads, said system and unit effective to form an open shed in said warp threads for a plurality of successive picks of the loom, the loom effective to lay a plurality of weft threads one at a time in said open shed, means to cut each weft thread after it has been placed in said open shed, holding means for holding each of said weft threads prior to cutting and for holding said plurality of weft threads sub- 7,1 sequent to cutting thereof during the time said shed is open, said system and unit effective thereafter to close 'said .shed to hold said wefts' by said warp threads ,and
  • said weft holding'means is a rigid member, the forward end of which is made up of two substantially flat members which are disposed toward each other in scissor-like fashion, said flat members being spaced from each other to form a substantially narrow slot'eifective :to receive and hold said weft threads until said shed formed by said selvage warp threads closes.
  • a selvage forming unit operatively connected to said system, a pair of crossing and a pair of ,noncrossing selvage warp. threads, said. system and unit effective to form an open :shed in said warp threads for a plurality of successive picks of the loom, the loom effective to lay a plurality of a weft thread one at a time in said; open shed,

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Woven Fabrics (AREA)
  • Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
US343671A 1964-02-10 1964-02-10 Selvage forming mechanism Expired - Lifetime US3171443A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US343671A US3171443A (en) 1964-02-10 1964-02-10 Selvage forming mechanism
GB14292/64A GB1055082A (en) 1964-02-10 1964-04-07 Woven selvage and mechanism to produce same
FR44748A FR1397593A (fr) 1964-02-10 1964-04-28 Lisière pour tissu et dispositif pour sa réalisation
DE19641535329 DE1535329A1 (de) 1964-02-10 1964-05-08 Gewebekante und Vorrichtung zu deren Herstellung
NL6405262A NL6405262A (US06826419-20041130-M00005.png) 1964-02-10 1964-05-12
BE648061D BE648061A (US06826419-20041130-M00005.png) 1964-02-10 1964-05-19
CH659164A CH423655A (fr) 1964-02-10 1964-05-20 Procédé de fabrication d'une lisiére de tissu, dispositif pour sa mise en oeuvre et lisiére obtenue au moyen de ce procédé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US343671A US3171443A (en) 1964-02-10 1964-02-10 Selvage forming mechanism

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US3171443A true US3171443A (en) 1965-03-02

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US343671A Expired - Lifetime US3171443A (en) 1964-02-10 1964-02-10 Selvage forming mechanism

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US (1) US3171443A (US06826419-20041130-M00005.png)
BE (1) BE648061A (US06826419-20041130-M00005.png)
CH (1) CH423655A (US06826419-20041130-M00005.png)
DE (1) DE1535329A1 (US06826419-20041130-M00005.png)
FR (1) FR1397593A (US06826419-20041130-M00005.png)
GB (1) GB1055082A (US06826419-20041130-M00005.png)
NL (1) NL6405262A (US06826419-20041130-M00005.png)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369570A (en) * 1966-12-19 1968-02-20 West Point Pepperell Inc Leno selvedge device
US4478256A (en) * 1983-01-14 1984-10-23 Gebr. Klocker (Klocker Bros.) Apparatus for producing a selvage provided with a crossweave
WO1997029232A1 (de) * 1996-02-09 1997-08-14 Picanol N.V. Kantenbildungsvorrichtung für eine webmaschine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH595490A5 (US06826419-20041130-M00005.png) * 1976-03-25 1978-02-15 Rueti Ag Maschf
DE2916838C2 (de) * 1979-04-26 1985-01-31 Heinz 4280 Borken Klöcker Vorrichtung zum Bilden einer mit einer Bindung versehenen Gewebekante, insbesondere bei schützenlosen Webmaschinen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637351A (en) * 1949-10-31 1953-05-05 Henry J Cooper Selvedge for woven fabrics
FR1182295A (fr) * 1957-06-03 1959-06-24 Seydoux Et Michau Reunis Ets Perfectionnements aux métiers à tisser
US2918945A (en) * 1958-07-16 1959-12-29 Crompton & Knowles Corp Selvage and method and means for making same
US2918949A (en) * 1958-07-16 1959-12-29 Crompton & Knowles Corp Selvages for woven fabrics
US3047027A (en) * 1959-07-31 1962-07-31 Sdruzeni Podniku Textilniho St Device for selvedge forming
US3111966A (en) * 1960-06-01 1963-11-26 Sulzer Ag Method and apparatus for simultaneously weaving lengths of fabric

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637351A (en) * 1949-10-31 1953-05-05 Henry J Cooper Selvedge for woven fabrics
FR1182295A (fr) * 1957-06-03 1959-06-24 Seydoux Et Michau Reunis Ets Perfectionnements aux métiers à tisser
US2918945A (en) * 1958-07-16 1959-12-29 Crompton & Knowles Corp Selvage and method and means for making same
US2918949A (en) * 1958-07-16 1959-12-29 Crompton & Knowles Corp Selvages for woven fabrics
US3047027A (en) * 1959-07-31 1962-07-31 Sdruzeni Podniku Textilniho St Device for selvedge forming
US3111966A (en) * 1960-06-01 1963-11-26 Sulzer Ag Method and apparatus for simultaneously weaving lengths of fabric

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369570A (en) * 1966-12-19 1968-02-20 West Point Pepperell Inc Leno selvedge device
US4478256A (en) * 1983-01-14 1984-10-23 Gebr. Klocker (Klocker Bros.) Apparatus for producing a selvage provided with a crossweave
WO1997029232A1 (de) * 1996-02-09 1997-08-14 Picanol N.V. Kantenbildungsvorrichtung für eine webmaschine
BE1010014A3 (nl) * 1996-02-09 1997-11-04 Picanol Nv Kanteninrichting voor een weefmachine.

Also Published As

Publication number Publication date
DE1535329A1 (de) 1969-11-20
BE648061A (US06826419-20041130-M00005.png) 1964-09-16
NL6405262A (US06826419-20041130-M00005.png) 1965-08-11
CH423655A (fr) 1966-10-31
FR1397593A (fr) 1965-04-30
GB1055082A (en) 1967-01-11

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Owner name: LEESONA CORPORATION, 333 STRAWBERRY FIELD RD. WARW

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Effective date: 19820324

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