US2280478A - Loom with stationary weft supplies - Google Patents
Loom with stationary weft supplies Download PDFInfo
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- US2280478A US2280478A US397985A US39798541A US2280478A US 2280478 A US2280478 A US 2280478A US 397985 A US397985 A US 397985A US 39798541 A US39798541 A US 39798541A US 2280478 A US2280478 A US 2280478A
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- weft
- thread
- laying member
- shed
- loom
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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
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- This invention relates to looms with stationary weft supplies, i. e. shuttleless looms, and has reference particularly to such looms of the kind wherein the weft thread is laid in a shed of warp threads by means of a movable member or members with which a thread engaging element or elements, such, for example, as a reciprocatory knitting needle or needles, co-operates or co-operate to interconnect the wefts, as, for example, by
- Fi ure 4 is a detail side view of cam means and: as covering either a single weft thread or a pluconnections for operating the weft engaging latch rality of such threads where the context so adneedle w ich Wor s in conjunction with the laymits, l5 ing member in the manner hereinafter to be
- the present invention has for its object to described, provide, in a loom of the kind concerned, an Fi re 5 is a p rt sectional end view taken on improved construction and arrangement of the e e o i ure 1A; weft laying mechanism applicable more particu- Figure ,6 is a detail plan view of the deflectlarly to the production of relatively wide webs, able thread guiding portion of the Weft lay e, g.
- FIG. 7 is a front elevational view of the same manufacture subsequently into elastic garments, as se n in the direction of the arrow B in Figure 6, and pieces of inelastic or so-called rigid fabric
- Figure 3 s a p t Sectional iew taken on the for other purposes, line VIII-VIII Of Figure 1A showing a guiding 3
- bracket for the Weft laying member, a slidable reciprocatory weft laying member fur- Figure 9 s a pla View o t e e t engaging nished with a thread guiding portion adapted to mechanism d s s m e par i a y, the be deflected in relation to the main portion, and manner in which Weft thread s p e d to t e means adapted to effect deflection of the said latch'need
- the eft, laying member is engaged In the loom illustrated in Figure 1, the warps 'L'U with guiding means so constructed and arranged nermelly extend horizontally at the shed that in addition to being moved transversely to cation S and a e gaging nitt needle I the path of the warps, to lay the weft in the 40 of the latch type is arranged forlengthwise reshed, the weft laying member, during each forciprocation alongside the path of the warps on ward stroke, is also constrained to approach the the opposite side to that from which the weftlayco-operating weft engaging element in the warping member 2 operates.
- the member 2 consists of a long comparatively the weft engaging element in a favourable posithin bar provided at its leading end with a yieldtion for engagement positively by the said eleable thread guiding portion 3 capable of being ment. deflected in relation to said bar.
- This thread In order that the invention may be more clearly guiding portion is mainly straight but curved or understood and readily carried into practical bent at its operative, i. e. forward, end where it effect, a specific constructional form thereof as is furnished with porcelain eyes 4 through which applied to a horizontal loom for producing a plain the single weft thread wt is passed.
- Figure-1A is aplan view ofthe loom, the main body of which is shown in Figure 1,
- FIG. 2 is a front elevational view of a por tion of the loomshowing the means for operating and guiding the weft laying member
- FIG 3 is a face view of the cam which is sented in Figure 6.
- the manner of deflection of the thread guiding portion is indicated in dotand-dash lines.
- the spring strip 5 is secured in position to the respective parts by means of rivets 6.
- the strip 5 serves to hold the straight part of the lel to the path of the warps-n the side from which the weft laying member is to operate.
- the parallel slides 8, 9 are set somewhat obliquely with respect 'to the warps w andto the selvedge forming knitting
- the pivot for the bar 2 is constituted needle I. by a vertical pin I2 the lower end of which is screwed into the top of the slider block I.
- the tail end of the bar 2 is rigidly secured to a small bracket I3 carried by a collar I4 which latter is mounted to turn freely uponthe' pivot pin' I2.
- a split pin I5 inserted through the top of the pivot pin I2 serves to prevent the collar Mfrom coming adrift. In this way, therefore, the weft laying member is permitted slight turning movement about the pivot as and for a purposehereinafter to be explained.
- the block I is formed with grooved sides for slidable engagement with the opposed inner edges of the slides 8, 9.
- the bar 2 is arranged to slide through a fixed guiding bracket I5 mounted on the top of the slide 3 at the inner end thereof.
- This bracket is set at right angles to the obliquely disposed path of reciprocation of the weft laying member and is slotted or gapped at I5a to permit of the passage of the bar 2 through it.
- the width of the slot or gap Iifia is somewhat in excess of the thickness of the bar 2.
- a ball bearing I? mounted in the bracket l6 near the bottom of the slot or gap therein serves to support the bar 2 and thereby facilitate its smooth movement during reciprocation thereof through the shed.
- a screw I8 capable of being set in an adjusted position by means of a lock-nut I9 extends through one of the side walls of the guiding bracket I6. The purpose of this screw is to vary the effective width of the slot of gap ISa, according to requirements.
- any tendency The said frame members are disposed adjacent and paral- 2Ia of the deflector pin is bent downwardly into the path of the thread guiding portion 3 (see Figure 10) As shown in Figure l, the opposite end of said pin is screw-threaded and adjustably secured within an appropriately tapped small carrier block 22 which is in turn mounted suchwise as to be capable of adjustment angularly upon asupporting bar or bracket 23. In this way provision is made for setting the deflector pin accurately with respect to the weft laying member.
- a thread tensioning device or devices may be 7 provided in conjunction with the weft laying member to keep the weft thread taut.
- a tensioning device comprising a pair of discs 24 and a spring 25 for holding or pressing the discs together with the thread wt between them is mounted together with thread guiding eyes 26 on a support 27. This support is carried at the upper end of a vertical rod 28 which is fixed in the slider block I by means of a screw 29.
- the slider block 1 is operated by a lever 30 pivoted in the loom on a bracket 3! which is attached to a cross bar 32 forming part of the main frame of the loom (see Figures 2 and 5).
- this lever is provided with a transversely extending pin 33 which is adjustable heightwise as occasion demands within a slot 30a formed in the said lever.
- the pin 33 is set in the desired position by a nut 34, and has slidably mounted upon it a double eye piece 35 which is towards excessive lateral movement of the bar 2 within the bracket I6 could be effectively checked by screwing the screw l8 further inwards to an appropriate extent.
- a plate 20 with an angular extension 20a disposed to bridge the slot or gap IBa above the bar2 is secured to the front of the bracket I6. The purpose: of such a plate is to ensure that the bar 2 shall never, by accident, become displaced upwardly to such an extent as to come entirely adrift from the bracket. ought to be explained, however, that the provision of means of this character is neither likely to prove essential nor even necessary in some cases.
- the lever 30 When it is oscillated the lever 30 turns about the axis of the pivot pin 38.
- the lever 33 is connected by means of a pin 39 and an associated anti-friction device 40 with an arcuately slotted extension Ma at one end of a
- the axis of the cross bar 41 which is slidably mounted in bearings 44 on the frame of the loom.
- the device 40 comprises a pair'of spaced links 42 carrying between them rollers 43 mounted in a slotted guideway 300 in the lever 39.
- the links 42 are arranged to pivot upon the pin 39.
- remote from its slotted extension 41a is fitted with a truck or roller 45 (see more particularly Figure 3) adapted to engage in an appropriately shaped groove 46 formed in one face of a rotary plate cam 41. This cam.
- the needle I is attached to a carrier bar 52 slidably mounted for reciprocation on a bracket 53 between two plates 54 and 55 which latter together constitute a guide for the bar.
- the said bar is provided with a laterally extending peg 56 whereby it can be reciprocated.
- the portion of the bracket 53 upon which the carrier bar 52 is mounted is comparatively narrow, the plate 5 1 being secured by screws 51 to the inner face of this portion, while the plate 55 is similarly secured by screws 58 to the other side of said portion.
- the needle I is inclined so that its hook Ia lies in a plane which is obliquely disposed with respect to the plane of the plate 54.
- a cam 59 formed on a part disposed beneath the carrier bar 52 and attached to the top of the bracket 53,.
- the underside of the carrier bar is appropriately shaped to co-operate with the cam. 59 in such a way that on each forward stroke of the bar the latter is lifted at its forward end, as shown in Figure 10, to effect defiection of the needle.
- a blade spring to arranged as shown is provided to depress the bar 52 and hence return the needle to its normal level when the bar is retracted.
- the forward edge of the plate 5 5 constitutes a knocking-over edge; the elongation of loops drawn by the needle and the casting-off of old loops is facilitated by this edge.
- the needle 4 is operated from a profile cam 6
- the cam 6! is mounted on the conventional crank shaft 63 of the loom from which the customary batten S4 is operated.
- the approximate shape of the said cam is represented in Figure 4.
- the connecting rod 52 is provided with a forked or slotted big end 65 embracing the crank shaft 63 and fitted with a roller 66 held up to the cam SI by a tension spring 67.
- One end of this spring is anchored to ahooked collar BI adjustable on the connecting rod 62, the other end being attached to any suitable fixed part of" the loom.
- the rear end of the connecting rod is adjustably secured within. a boss formed on the big end 65, while at its forward end the said.
- the connecting rod is pivotally connected to a lever 69 secured ona rockshaft III. Another lever II fast on this rockshaft is engaged. with the aforesaid peg 56. Consequently, as the cam 6
- the connecting rod may be adjust-ably connected with the lever 69. In any event, the arrangement is preferably such as to enable the stroke of the needle I to be varied or to suit needles of different lengths.
- spaced bars I2 and'l3 between which the fabric f passes as produced are provided.
- the bars I2 and I3 are a tached at one end to a bracket I4 fixed to the front of the loom.
- a slotted bar or rod may be provided.
- a pin 15 which is arranged and operable for action upon the inserted weft at the fell of the fabric in such a manner that the said weft is held back at such times as the needle is moved to engage weft thread presented by the deflected thread engaging portion 3. That is to say, the pin i5 functions to hold back on the needle previously formed loops such as that indicated at c in Figures 9 and 10.
- the pin 15 is arranged for movement substantially at right angles to the inserted weft towards and from the fell of the fabric at one side thereof in close proximity to'the outermost warp.
- the said pin is carried by a lever 76 which is pivoted at one end of a spindle I1 adjustably secured in a small block I8 attached to the top of the bar 13.
- the lever It is spring influenced normally to maintain the pin I5 in its operative position (depicted in Figures 9 and 10) by means of a torsion spring '59.
- the upper end of the lever I6 is adapted to be acted upon at appropriate times by a part such as 80 ( Figure 1) of or on the batten. When so acted upon, the lever is swung about its pivot against the spring action to lift the pin 15 to an inoperative position. The pin is therefore rendered inoperative forward to beat up the weft.
- a spiked roller BI is provided toengage the fabeach time the batten, with its reed or sley, moves ric as produced in such a manner as to' ensure that the edge portion of the fabric is held up to the selvedge-forming mechanism.
- Crank or eccentric means instead of cam means may, if desired, be provided for operating the weft laying member.
- a bearded needle may be used to knit the selvedge.
- a substantially straight weft laying member is pivotally mounted on a carrier arranged for to and fro movement in relation to the path of the warps, and is slidably connected with a pivoted guide, the pivot for the said member and the pivoted guide being so disposed relatively to the carrier that the weft laying member is constrained to deviate from a path normal to the path of the warps so as to approach the weft engaging element, in the manner described, on the forward strokes.
- the weft laying member may be bent suchwise that when the bent portion comes into contact with the guide, during the forward strokes of the said member, deviation of the weft laying member from a path normal to the path of the warps to bring the said member up to the weft engaging element, as aforesaid, is achieved.
- weft laying arrangement for producing one and the same piece of fabric.
- the arrangement may be duplicated
- weft laying members consisting of rods or bars and associated guides arranged in parallel relation and both associated with the same carrier or slider, or independent carriers or sliders, for
- a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member having a thread guiding portion capable of deflection in relation to the remainder thereof, a thread'engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, means for effecting deflection of the said thread guiding portion from the path of reciprocation of the Weft laying member after passage through the shed on a forward stroke, and guiding means with which the weft laying member is associated, the construction and arrangement of said last mentioned means being such that in addition to being moved transversely to the path of the warps to lay the weft in the shed the weft laying member, during each forward stroke, is also constrained to approach the co-operating weft engaging element in the warpwise direction to facilitate deflection of the thread guiding portion and
- a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member having a yieldable thread guiding portion capable of deflection in relation to the remainder thereof, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, a fixed deflector which is arranged in the path of reciprocation of the weft laying member and adapted to make contact with and deflect the yieldable thread guiding portion after passage of the weft laying member through the shed on a forward stroke, and guiding means with which the weft laying member is associated, the construction and arrangement of said last mentioned means being such that in addition to being moved transversely to the path of the warps to lay the weft in the shed the weft laying member, during each forward stroke, is also constrained to approach the fixed deflector in
- a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member comprising a main portion in the form of a bar and a thread guiding portion which is yieldable by reason of being connected to said bar by means of a spring strip, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, means for effecting deflection of the said thread guiding portion from the path of reciprocation of the weft laying member after passage through the shed on a forward stroke, and guiding means with which the weft laying member is associated, the construction and arrangement of said last mentioned means being such that in addition to being moved transversely to the path of the warps to lay the weft in the shed the Weft laying member, during each forward stroke, is also constrained to approach the co-operating weft engaging
- a weft laying member having a thread guiding portion capable of deflection in relation to the remainder thereof, a movable carrier upon which said memher is mounted, guiding means for said carrier arranged obliquely in relation to the path of the warps, means for reciprocating the carrier along the guiding means whereby the weft laying member operates and moves in an oblique manner to carry weft thread to and fro through a shed of the warps, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, and means for effecting deflection of the aforesaid thread guiding portion from the oblique path of reciprocation of the weft laying member after passage through the shed on a forward stroke suchwise as to present the weft carried thereby to the thread engaging element.
- a weft laying member having a thread guiding portion capable of deflection in relation to the remainder thereof, a slidable carrier with which the weft and moves in an oblique manner to carry weft thread to and fro through a shed of the warps,
- a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, and means for effecting deflection of the aforesaid thread guiding portion from the oblique path of reciprocation of the weft laying member after passage through the shed on a forward stroke suchwise as to present the weft carried thereby to the thread engaging element.
- a weft laying member having a yieldable thread guiding portion capable of deflection in relation to the remainder thereof, a movable carrier upon which said member is mounted, guides for said carrier arranged obliquely in relation to the path of the warps, means for reciprocating the carrier along the guides whereby the weft laying member operates and moves in an oblique manner to carry the weft thread to and fro through a shed of the warps, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, and a fixed deflector which is arranged in the oblique path of reciprocation of the weft laying member and adapted to make contact with and deflect the yieldable thread guiding portion after passage of the weft laying member through the shed on a forward stroke suchwise as to present the weft carried by said member to the thread engaging element.
- a weft laying member having a yieldable thread guiding portion capable of deflection in relation to the remainder thereof, a movable carrier upon which said member is mounted, guides for said carrier arranged obliquely in relation to the path of the warps, a pivoted lever, means for connecting said lever with the carrier, cam means for effecting oscillation of the lever whereby the carrier is reoiprocated along the guides so that the weft laying member is moved in an oblique manner to carry the weft thread to and fro through a shed of the warps, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, and a fixed deflector which is arranged in the oblique path of reciprocation of the weft laying member and adapted to make contact with and deflect the yieldable thread guiding portion after passage of the weft laying member
- a weft laying member having a thread guiding portion capable of deflection in relation to the remainder thereof, a movable carrier upon which said member is mounted, guides for said carrier arranged obliquely with respect to the path of the warps, a slotted lever pivoted in the loom, means for connecting said lever with the carrier, a slidable reciprocatory bar with a slotted end, an anti-friction device carried by said slotted end and arranged to work in the slot in the pivoted lever, a cam for effecting reciprocation of the bar, whereby through oscillation of the lever the aforesaid carrier is reciprocated along the guides so that the weft laying member is moved in an oblique manner to carry the weft thread to and fro through a shed of the warps, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts,
- a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member having a thread guiding portion capable of deflection in relation to the remainder thereof, a guide, a knitting needle attached to a carrier bar slidably mounted for reciprocation in said guide, said needle being adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and'to form a knitted selvedge, a cam for effecting deflection of the needle on the forward strokes whereby positive engagement of the weft with the needle is facilitated, a part providing a knocking over edge adjacent to the needle to facilitate formation of the selvedge, a guide for supporting fabric adjacent to the fell while being woven, means for effecting deflection of the said thread guiding portion from the path of reciprocation of the weft laying member after passage through the shed on a forward stroke, and guiding
- a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member having a thread guiding portion capable of deflection in relation to the remainder thereof, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the Wefts, means for effecting deflection of the said thread guiding portion from the path of reciprocation of the weft laying memher after passage through the shed on a forward stroke, guiding means with which the waft laying member is associated, the construction and arrangement of said last mentioned means being such that in addition to being moved transversely to the path of the warps to lay the weft in the shed the weft laying member, during each for- CPI ward stroke, is also constrained to approach the co-operating weft engaging element in the warpwise direction to facilitate deflection of the thread
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Description
April 1942- c. CLUTSOM 1400M WITH STATIONARY WEFT SUPPLY Filed Jun 13, 1941 s Sheets-Sheet :s
I l :v
Afton/veg April 21-, 1942.
c. CLUTSOM 2,280,478
LOOM WITH STATIONARY WEFT SUPPLY Filed June 15, 1941 s Sheets-Sheet 4 mt/W 4Ztorney. Y
April 21, 1942. c. CLUTSOM LOOM WITH STATIONARY WEFT SUPPLY Filed June 13, 1941 5 Sheets-Sheet 5 Muenor 4ftorney,
Patented Apr. 21, 1942 2,280,478 I LOOM wrrn STATIONARY WEF'r SUPPLIES oFFICE" Charles Clutsom,'St. Michaels, Ashby-de-la- Zouch, England Application June 13, 1941', Serial No.
In Great Britain June 15, 1940 12 Claims. (01.139-124) This invention relates to looms with stationary weft supplies, i. e. shuttleless looms, and has reference particularly to such looms of the kind wherein the weft thread is laid in a shed of warp threads by means of a movable member or members with which a thread engaging element or elements, such, for example, as a reciprocatory knitting needle or needles, co-operates or co-operate to interconnect the wefts, as, for example, by
forming a knitted selvedge or selvedges, in order 1 employed for controlling the movements of-the to lock the wefts in the woven fabric. said member, v
The expression weft thread is to be regarded Fi ure 4 is a detail side view of cam means and: as covering either a single weft thread or a pluconnections for operating the weft engaging latch rality of such threads where the context so adneedle w ich Wor s in conjunction with the laymits, l5 ing member in the manner hereinafter to be The present invention has for its object to described, provide, in a loom of the kind concerned, an Fi re 5 is a p rt sectional end view taken on improved construction and arrangement of the e e o i ure 1A; weft laying mechanism applicable more particu- Figure ,6 is a detail plan view of the deflectlarly to the production of relatively wide webs, able thread guiding portion of the Weft lay e, g. from-3 or more up to, say, about 12 inches e e in width, such a pieces of la ti fab ic for Figure 7 is a front elevational view of the same manufacture subsequently into elastic garments, as se n in the direction of the arrow B in Figure 6, and pieces of inelastic or so-called rigid fabric Figure 3 s a p t Sectional iew taken on the for other purposes, line VIII-VIII Of Figure 1A showing a guiding 3 To this end there are provided, in combination, bracket for the Weft laying member, a slidable reciprocatory weft laying member fur- Figure 9 s a pla View o t e e t engaging nished with a thread guiding portion adapted to mechanism d s s m e par i a y, the be deflected in relation to the main portion, and manner in which Weft thread s p e d to t e means adapted to effect deflection of the said latch'needle by t e a e e e a d thr ad guiding ti from th path of recipro I Figure 10 is'a side view of the same as seen in cation of the main portion after passage through e direction 0 t e OW in i re 9- the shed on a forward stroke of the weft laying i e parts are designated by S a e ere ce member in such a manner as to present the weft characters throughout the d a s carried thereby to the adjacent thread engag- F ures 6-10 are r wn t a lar er scale than jng l t, the remaining figures.
Preferably, the eft, laying member is engaged In the loom illustrated in Figure 1, the warps 'L'U with guiding means so constructed and arranged nermelly extend horizontally at the shed that in addition to being moved transversely to cation S and a e gaging nitt needle I the path of the warps, to lay the weft in the 40 of the latch type is arranged forlengthwise reshed, the weft laying member, during each forciprocation alongside the path of the warps on ward stroke, is also constrained to approach the the opposite side to that from which the weftlayco-operating weft engaging element in the warping member 2 operates. 7 Wise direction whereby the weft is presented to The member 2 consists of a long comparatively the weft engaging element in a favourable posithin bar provided at its leading end with a yieldtion for engagement positively by the said eleable thread guiding portion 3 capable of being ment. deflected in relation to said bar. This thread In order that the invention may be more clearly guiding portion is mainly straight but curved or understood and readily carried into practical bent at its operative, i. e. forward, end where it effect, a specific constructional form thereof as is furnished with porcelain eyes 4 through which applied to a horizontal loom for producing a plain the single weft thread wt is passed. The bar 2' weave with a single weft thread and one knitted and the guiding portion'tare' connected together" selvedge will now be described by way of example by a strip 5 of spring steel suchwise as to; e'nable' with reference to the accompanying diagramthe portion 3 to be deflected forwardly against the matic drawings, wherein: Spring action from the full line position repre- Figure 1 is a plan view of so muchof said loom present improvements thereto,
Figure-1A is aplan view ofthe loom, the main body of which is shown in Figure 1,
b Figure 2 is a front elevational view of a por tion of the loomshowing the means for operating and guiding the weft laying member,
Figure 3 is a face view of the cam which is sented in Figure 6. The manner of deflection of the thread guiding portion is indicated in dotand-dash lines. As shown more clearly in Figure '7, the spring strip 5 is secured in position to the respective parts by means of rivets 6. Normally the strip 5 serves to hold the straight part of the lel to the path of the warps-n the side from which the weft laying member is to operate. As will be seen from Figure 1, the parallel slides 8, 9 are set somewhat obliquely with respect 'to the warps w andto the selvedge forming knitting The pivot for the bar 2 is constituted needle I. by a vertical pin I2 the lower end of which is screwed into the top of the slider block I. I The tail end of the bar 2 is rigidly secured to a small bracket I3 carried by a collar I4 which latter is mounted to turn freely uponthe' pivot pin' I2. A split pin I5 inserted through the top of the pivot pin I2 serves to prevent the collar Mfrom coming adrift. In this way, therefore, the weft laying member is permitted slight turning movement about the pivot as and for a purposehereinafter to be explained. Referring to Figure 5 it will be seen that the block I is formed with grooved sides for slidable engagement with the opposed inner edges of the slides 8, 9. The bar 2 is arranged to slide through a fixed guiding bracket I5 mounted on the top of the slide 3 at the inner end thereof. This bracket is set at right angles to the obliquely disposed path of reciprocation of the weft laying member and is slotted or gapped at I5a to permit of the passage of the bar 2 through it. As shown in Figure 8 the width of the slot or gap Iifia is somewhat in excess of the thickness of the bar 2. A ball bearing I? mounted in the bracket l6 near the bottom of the slot or gap therein serves to support the bar 2 and thereby facilitate its smooth movement during reciprocation thereof through the shed. A screw I8 capable of being set in an adjusted position by means of a lock-nut I9 extends through one of the side walls of the guiding bracket I6. The purpose of this screw is to vary the effective width of the slot of gap ISa, according to requirements. For instance, any tendency The said frame members are disposed adjacent and paral- 2Ia of the deflector pin is bent downwardly into the path of the thread guiding portion 3 (see Figure 10) As shown in Figure l, the opposite end of said pin is screw-threaded and adjustably secured within an appropriately tapped small carrier block 22 which is in turn mounted suchwise as to be capable of adjustment angularly upon asupporting bar or bracket 23. In this way provision is made for setting the deflector pin accurately with respect to the weft laying member.
The construction so far described is therefore such that during each forward stroke the weft laying member 2, in addition to being moved transversely to the path of the warps w to lay the weft thread wt in the shed, is also constrained to approach the deflector pin 2| and hence also the weft engaging knitting needle I in the warpwise direction. By reason, then, of such oblique movement of the weft laying member in conjunction with deflection of the thread guiding portion 3 in the manner aforesaid, the weft thread is presented to the needle I in a favourable position for engagement positively by the said needle. During reciprocation the weft laying member slides back and forth through the guiding bracket.
I6 substantially along the rectilinear path but is, however, permitted slight turning or swinging movement about the pivot I2 to guard against jamming. It is convenient to mention here that if the weft laying member was definitely held from such movement there might be a tendency, owing to its speed, for it to bind in the bracket I6 and effect breakages.
A thread tensioning device or devices may be 7 provided in conjunction with the weft laying member to keep the weft thread taut. Conveniently, and as shown in Figures 1, 2 and 5, a tensioning device comprising a pair of discs 24 and a spring 25 for holding or pressing the discs together with the thread wt between them is mounted together with thread guiding eyes 26 on a support 27. This support is carried at the upper end of a vertical rod 28 which is fixed in the slider block I by means of a screw 29.
The slider block 1 is operated by a lever 30 pivoted in the loom on a bracket 3! which is attached to a cross bar 32 forming part of the main frame of the loom (see Figures 2 and 5). The
upper end of this lever is provided with a transversely extending pin 33 which is adjustable heightwise as occasion demands within a slot 30a formed in the said lever. The pin 33 is set in the desired position by a nut 34, and has slidably mounted upon it a double eye piece 35 which is towards excessive lateral movement of the bar 2 within the bracket I6 could be effectively checked by screwing the screw l8 further inwards to an appropriate extent. A plate 20 with an angular extension 20a disposed to bridge the slot or gap IBa above the bar2 is secured to the front of the bracket I6. The purpose: of such a plate is to ensure that the bar 2 shall never, by accident, become displaced upwardly to such an extent as to come entirely adrift from the bracket. ought to be explained, however, that the provision of means of this character is neither likely to prove essential nor even necessary in some cases.
Near the completion of each forward stroke of the weft laying member, the curved or bent end of the yieldab-le thread guiding portion 3 comes into contact with a deflector pin 21 whereupon it is deflected in relation to the bar 2 against the spring action to present the weft thread wt to the adjacent knitting needle I'in the 'manner' depicted in Figures Qand 10. The operative end 1 38 secured in the bracket 3|.
- bracket 3 I.
also similarly mounted upon a portion of the aforesaid vertical rod 28 extending through and depending beneath the slider block 'I. Accordingly', as the lever 30 is oscillated about its pivot to effect reciprocation of the slider block I along the obliquely disposed slidesv 8, 9, the eye piece 35 slides not only up and down the rod 28 but also back and forth along the pin 33. A gimbal joint is employed to connect the lever 30 with the Thus, as will be seen, the lower end of the lever is suitably enlarged and bifurcated at 301) for reception of an element 36 formed with pintles 3'! arranged to turn in the lever. The element 36 is also adapted to turn upon a pivot pin pin 38 extends at right angles to the common axis of the pintles .31. When it is oscillated the lever 30 turns about the axis of the pivot pin 38. The lever 33 is connected by means of a pin 39 and an associated anti-friction device 40 with an arcuately slotted extension Ma at one end of a The axis of the cross bar 41 which is slidably mounted in bearings 44 on the frame of the loom. The device 40 comprises a pair'of spaced links 42 carrying between them rollers 43 mounted in a slotted guideway 300 in the lever 39. The links 42 are arranged to pivot upon the pin 39. The end of the cross bar 4| remote from its slotted extension 41a is fitted with a truck or roller 45 (see more particularly Figure 3) adapted to engage in an appropriately shaped groove 46 formed in one face of a rotary plate cam 41. This cam. is mounted upon a shaft 48 adaptedto be driven from the main shaft 49 of the loom through bevel gearing 58', The arrangement is such that as the cam 41 rotates in the direction of the arrow indicated in Figure 3, the cross bar 4| reciprocates and thereby oscillates the lever 30 which in turn imparts the required reciprocatory movements to the slider block I and hence also the weft laying member 2. A cam having a groove of a shape suitable for producing the movements concerned is shown in Figure 3; the concentric portion 46a of the groove 46 enables the weft laying member to pause between strokes.
It is principally the intention to use the weft laying arrangement just described in combination with a latch needle I arranged and adapted to operate as specifically described in the specification of my prior Letters Patent No. 2,130,636 for forming a knitted selvedge. That is to say, the needle I is attached to a carrier bar 52 slidably mounted for reciprocation on a bracket 53 between two plates 54 and 55 which latter together constitute a guide for the bar. The said bar is provided with a laterally extending peg 56 whereby it can be reciprocated. The portion of the bracket 53 upon which the carrier bar 52 is mounted is comparatively narrow, the plate 5 1 being secured by screws 51 to the inner face of this portion, while the plate 55 is similarly secured by screws 58 to the other side of said portion. As will be seen more clearly in Figure 9, the needle I is inclined so that its hook Ia lies in a plane which is obliquely disposed with respect to the plane of the plate 54. A cam 59, formed on a part disposed beneath the carrier bar 52 and attached to the top of the bracket 53,.
is provided so that when the needle I is advanced to engage weft thread presented to it by the weft laying member 2 such engagementis facilitated as the result of contact between the carrier bar and the said cam. The underside of the carrier bar is appropriately shaped to co-operate with the cam. 59 in such a way that on each forward stroke of the bar the latter is lifted at its forward end, as shown in Figure 10, to effect defiection of the needle. A blade spring to arranged as shown is provided to depress the bar 52 and hence return the needle to its normal level when the bar is retracted. The forward edge of the plate 5 5 constitutes a knocking-over edge; the elongation of loops drawn by the needle and the casting-off of old loops is facilitated by this edge. Referring to Figure 1 it will be seen that the needle 4 is operated from a profile cam 6| through intermediate connections including a connecting rod 62. The cam 6! is mounted on the conventional crank shaft 63 of the loom from which the customary batten S4 is operated. The approximate shape of the said cam is represented in Figure 4. The connecting rod 52 is provided with a forked or slotted big end 65 embracing the crank shaft 63 and fitted with a roller 66 held up to the cam SI by a tension spring 67. One end of this spring is anchored to ahooked collar BI adjustable on the connecting rod 62, the other end being attached to any suitable fixed part of" the loom. The rear end of the connecting rod is adjustably secured within. a boss formed on the big end 65, while at its forward end the said. rod. is pivotally connected to a lever 69 secured ona rockshaft III. Another lever II fast on this rockshaft is engaged. with the aforesaid peg 56. Consequently, as the cam 6| revolves the rockshaft 'III" oscillates. to effect reciprocation of the needle I in proper timed relation with the movements of the weft layer 2. If desired, the connecting rod may be adjust-ably connected with the lever 69. In any event, the arrangement is preferably such as to enable the stroke of the needle I to be varied or to suit needles of different lengths.
For constraining the fabric to follow a definite path in the region of the fell there are provided. spaced bars I2 and'l3 between which the fabric f passes as produced. The bars I2 and I3 are a tached at one end to a bracket I4 fixed to the front of the loom. In lieu of the spaced bars a slotted bar or rod may be provided.
In further explanation of Figure 9 it is convenient to mention that the last picks of weft to be laid at the fell of the fabric are shown at a and b. At the stage represented in this figure, the
needle I is fully advanced with a loop 0 of weft the shed at this forward stroke is shown extending across the needle I which latter by reason of its upward deflection is in engagement with the thread. In Figure l, the member 2 is shown during a reverse stroke at which time the thread presented to the needle is drawn into the hook Ia thereof. No further description of the selvedge' knitting operation is considered necessary; such operations are now broadly well known and, in any event, are clearl described in my prior patent aforesaid.
In association with the knitting needle I there is provided a pin 15 which is arranged and operable for action upon the inserted weft at the fell of the fabric in such a manner that the said weft is held back at such times as the needle is moved to engage weft thread presented by the deflected thread engaging portion 3. That is to say, the pin i5 functions to hold back on the needle previously formed loops such as that indicated at c in Figures 9 and 10. The pin 15 is arranged for movement substantially at right angles to the inserted weft towards and from the fell of the fabric at one side thereof in close proximity to'the outermost warp. The said pin is carried by a lever 76 which is pivoted at one end of a spindle I1 adjustably secured in a small block I8 attached to the top of the bar 13. The lever It is spring influenced normally to maintain the pin I5 in its operative position (depicted in Figures 9 and 10) by means of a torsion spring '59. The upper end of the lever I6 is adapted to be acted upon at appropriate times by a part such as 80 (Figure 1) of or on the batten. When so acted upon, the lever is swung about its pivot against the spring action to lift the pin 15 to an inoperative position. The pin is therefore rendered inoperative forward to beat up the weft.
A spiked roller BI is provided toengage the fabeach time the batten, with its reed or sley, moves ric as produced in such a manner as to' ensure that the edge portion of the fabric is held up to the selvedge-forming mechanism.
Crank or eccentric means instead of cam means may, if desired, be provided for operating the weft laying member.
Instead of a latch needle a bearded needle may be used to knit the selvedge.
According to another embodiment of the invention (not shown) a substantially straight weft laying member is pivotally mounted on a carrier arranged for to and fro movement in relation to the path of the warps, and is slidably connected with a pivoted guide, the pivot for the said member and the pivoted guide being so disposed relatively to the carrier that the weft laying member is constrained to deviate from a path normal to the path of the warps so as to approach the weft engaging element, in the manner described, on the forward strokes. Alternatively, the weft laying member may be bent suchwise that when the bent portion comes into contact with the guide, during the forward strokes of the said member, deviation of the weft laying member from a path normal to the path of the warps to bring the said member up to the weft engaging element, as aforesaid, is achieved.
There may be more than one weft laying arrangement for producing one and the same piece of fabric. For example, the arrangement may be duplicated There may for instance be a pair of weft laying members consisting of rods or bars and associated guides arranged in parallel relation and both associated with the same carrier or slider, or independent carriers or sliders, for
producing double-faced fabric, such duplicate arrangement being adapted to present two wefts to the same thread engaging element, or to separate elements respectively,
In a loom adapted to produce a number of pieces of fabric, web or the like simultaneously there will be as many units or mechanisms embodying the improved weft laying arrangement and a weft engaging element or elements as pieces to be woven, in which case the weft laying members and likewise the weft engaging elements may be operated either by independent sets of actuating mechanism or by actuating mechanism common to all.
What I claim then is:
1. In a weaving loom, in combination, a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member having a thread guiding portion capable of deflection in relation to the remainder thereof, a thread'engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, means for effecting deflection of the said thread guiding portion from the path of reciprocation of the Weft laying member after passage through the shed on a forward stroke, and guiding means with which the weft laying member is associated, the construction and arrangement of said last mentioned means being such that in addition to being moved transversely to the path of the warps to lay the weft in the shed the weft laying member, during each forward stroke, is also constrained to approach the co-operating weft engaging element in the warpwise direction to facilitate deflection of the thread guiding portion and thereby present the weft to the weft engaging element in a favourable position for engagement positively by the said element.
2. In a weaving loom, in combination, a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member having a yieldable thread guiding portion capable of deflection in relation to the remainder thereof, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, a fixed deflector which is arranged in the path of reciprocation of the weft laying member and adapted to make contact with and deflect the yieldable thread guiding portion after passage of the weft laying member through the shed on a forward stroke, and guiding means with which the weft laying member is associated, the construction and arrangement of said last mentioned means being such that in addition to being moved transversely to the path of the warps to lay the weft in the shed the weft laying member, during each forward stroke, is also constrained to approach the fixed deflector in a warpwise direction suchwise as to guide the thread guiding portion into contact with said deflector to facilitate deflection thereof and thereby present the weft to the weft engaging element in a favourable position for engagement positively by the said element.
3. In a weaving loom, a combination according to claim 2, wherein the deflector is in the form of a pin adjustably mounted on a fixed support.
4. In a weaving loom, in combination, a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member comprising a main portion in the form of a bar and a thread guiding portion which is yieldable by reason of being connected to said bar by means of a spring strip, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, means for effecting deflection of the said thread guiding portion from the path of reciprocation of the weft laying member after passage through the shed on a forward stroke, and guiding means with which the weft laying member is associated, the construction and arrangement of said last mentioned means being such that in addition to being moved transversely to the path of the warps to lay the weft in the shed the Weft laying member, during each forward stroke, is also constrained to approach the co-operating weft engaging element in the warpwise direction to facilitate deflection of the thread guiding portion and thereby present the weft to the weft engaging element in a favourable position for engagement positively by the said element.
5. In a weaving loom, in combination, a weft laying member having a thread guiding portion capable of deflection in relation to the remainder thereof, a movable carrier upon which said memher is mounted, guiding means for said carrier arranged obliquely in relation to the path of the warps, means for reciprocating the carrier along the guiding means whereby the weft laying member operates and moves in an oblique manner to carry weft thread to and fro through a shed of the warps, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, and means for effecting deflection of the aforesaid thread guiding portion from the oblique path of reciprocation of the weft laying member after passage through the shed on a forward stroke suchwise as to present the weft carried thereby to the thread engaging element.
6. In a weaving loom, in combination, a weft laying member having a thread guiding portion capable of deflection in relation to the remainder thereof, a slidable carrier with which the weft and moves in an oblique manner to carry weft thread to and fro through a shed of the warps,
a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, and means for effecting deflection of the aforesaid thread guiding portion from the oblique path of reciprocation of the weft laying member after passage through the shed on a forward stroke suchwise as to present the weft carried thereby to the thread engaging element.
7. In a weaving loom, a combination according to claim 6, wherein the weft laying member is pivotally connected to the carrier to prevent it binding in the fixed guide.
8. In a weaving loom, in combination, a weft laying member having a yieldable thread guiding portion capable of deflection in relation to the remainder thereof, a movable carrier upon which said member is mounted, guides for said carrier arranged obliquely in relation to the path of the warps, means for reciprocating the carrier along the guides whereby the weft laying member operates and moves in an oblique manner to carry the weft thread to and fro through a shed of the warps, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, and a fixed deflector which is arranged in the oblique path of reciprocation of the weft laying member and adapted to make contact with and deflect the yieldable thread guiding portion after passage of the weft laying member through the shed on a forward stroke suchwise as to present the weft carried by said member to the thread engaging element.
9. In a weaving loom, in combination, a weft laying member having a yieldable thread guiding portion capable of deflection in relation to the remainder thereof, a movable carrier upon which said member is mounted, guides for said carrier arranged obliquely in relation to the path of the warps, a pivoted lever, means for connecting said lever with the carrier, cam means for effecting oscillation of the lever whereby the carrier is reoiprocated along the guides so that the weft laying member is moved in an oblique manner to carry the weft thread to and fro through a shed of the warps, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, and a fixed deflector which is arranged in the oblique path of reciprocation of the weft laying member and adapted to make contact with and deflect the yieldable thread guiding portion after passage of the weft laying member through the shed on a forward stroke suchwise as to present the weft carried by said member to the thread engaging element.
10. In a weaving loom, in combination, a weft laying member having a thread guiding portion capable of deflection in relation to the remainder thereof, a movable carrier upon which said member is mounted, guides for said carrier arranged obliquely with respect to the path of the warps, a slotted lever pivoted in the loom, means for connecting said lever with the carrier, a slidable reciprocatory bar with a slotted end, an anti-friction device carried by said slotted end and arranged to work in the slot in the pivoted lever, a cam for effecting reciprocation of the bar, whereby through oscillation of the lever the aforesaid carrier is reciprocated along the guides so that the weft laying member is moved in an oblique manner to carry the weft thread to and fro through a shed of the warps, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the wefts, and means for effecting deflection of the said thread guiding portion from the oblique path of reciprocation of the weft laying member after passage through the shed on a forward stroke whereby the weft is presented to the weft engaging element in a favourable position for engagement positively by the said element.
11. In a weaving loom, in combination, a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member having a thread guiding portion capable of deflection in relation to the remainder thereof, a guide, a knitting needle attached to a carrier bar slidably mounted for reciprocation in said guide, said needle being adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and'to form a knitted selvedge, a cam for effecting deflection of the needle on the forward strokes whereby positive engagement of the weft with the needle is facilitated, a part providing a knocking over edge adjacent to the needle to facilitate formation of the selvedge, a guide for supporting fabric adjacent to the fell while being woven, means for effecting deflection of the said thread guiding portion from the path of reciprocation of the weft laying member after passage through the shed on a forward stroke, and guiding means with which the weft laying member is associated, the construction and arrangement of said last mentioned means being such that in addition to being moved transversely to the path of the warps to lay the weft in the shed the weft laying member, during each forward stroke, is also constrained to approach the co-operating knitting needle in the warpwise direction to facilitate deflection of the thread guiding portion and thereby present the weft to the knitting needle in a favourable position for engagement positively by the said needle.
12. In a weaving loom, in combination, a slidable reciprocatory weft laying member adapted to operate to carry weft thread to and fro through a shed of warps, said member having a thread guiding portion capable of deflection in relation to the remainder thereof, a thread engaging element adapted to operate in conjunction with the weft laying member to ensure laying of the weft to and fro through the shed and to interconnect the Wefts, means for effecting deflection of the said thread guiding portion from the path of reciprocation of the weft laying memher after passage through the shed on a forward stroke, guiding means with which the waft laying member is associated, the construction and arrangement of said last mentioned means being such that in addition to being moved transversely to the path of the warps to lay the weft in the shed the weft laying member, during each for- CPI ward stroke, is also constrained to approach the co-operating weft engaging element in the warpwise direction to facilitate deflection of the thread guiding portion and thereby present the weft to the weft engaging element in a favorable position for engagement positively by the said element, and means whereby when the thread engaging element is moved to take the weft the previously formed portion of the selvedge is held 10 back on said element.
CHARLES CLUTSOM.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2280478X | 1940-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2280478A true US2280478A (en) | 1942-04-21 |
Family
ID=10902936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US397985A Expired - Lifetime US2280478A (en) | 1940-06-15 | 1941-06-13 | Loom with stationary weft supplies |
Country Status (1)
Country | Link |
---|---|
US (1) | US2280478A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2532087A (en) * | 1948-04-20 | 1950-11-28 | Clutsom Charles | Loom with stationary weft supply |
US2980146A (en) * | 1958-04-03 | 1961-04-18 | Continental Elastic Corp | High speed loom |
US3156265A (en) * | 1964-11-10 | Novelty fabric loom | ||
US3434506A (en) * | 1965-11-20 | 1969-03-25 | Mueller Jakob | Weft yarn anchoring arrangement for needle looms |
US3508588A (en) * | 1969-07-09 | 1970-04-28 | Crompton & Knowles Corp | Control mechanism for loom selvage needle |
-
1941
- 1941-06-13 US US397985A patent/US2280478A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3156265A (en) * | 1964-11-10 | Novelty fabric loom | ||
US2532087A (en) * | 1948-04-20 | 1950-11-28 | Clutsom Charles | Loom with stationary weft supply |
US2980146A (en) * | 1958-04-03 | 1961-04-18 | Continental Elastic Corp | High speed loom |
US3434506A (en) * | 1965-11-20 | 1969-03-25 | Mueller Jakob | Weft yarn anchoring arrangement for needle looms |
US3508588A (en) * | 1969-07-09 | 1970-04-28 | Crompton & Knowles Corp | Control mechanism for loom selvage needle |
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