US1720151A - Circular-weaving loom - Google Patents

Circular-weaving loom Download PDF

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Publication number
US1720151A
US1720151A US183853A US18385327A US1720151A US 1720151 A US1720151 A US 1720151A US 183853 A US183853 A US 183853A US 18385327 A US18385327 A US 18385327A US 1720151 A US1720151 A US 1720151A
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Prior art keywords
circular
shuttles
loom
warp threads
way
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Expired - Lifetime
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US183853A
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English (en)
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Sery Claude
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Individual
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Individual
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D37/00—Circular looms

Definitions

  • This invention refers to a circular weaving loom in -which the warp threads are arranged radially. --The shuttles slide on a circular plate provided with channels in supported by the-shuttle.” This driving pulley is itself positively rotated.
  • the circular loorn according to the inven- 1 tion is provided with means whereby the weft is made strictly perpendicular to the warp, and withanelectric stop motion. It comprises also. adevice' for forming selvedges if desired when, i on-tubular fabrics are to be manufa'ctured/ I
  • Such a 100m is diagrammatically represented in the. annexed drawings:
  • Fig. 1 is a'sideview- Fig. ⁇ 2 is -a-- plan view. the upper parts of thelooln being omitted.
  • Figs. 7 and '8. showthe results obtained by giving the weft thread a helical motion.
  • Fig. 9 shows the arrangement of the weft threads in the fabric.
  • Fig. 10 is a plan view of a shuttle.
  • Fig. 11 is a cross-section of the same on line B-B.;Fig. 10. 7
  • Fig. 12 is aside view'of the'thread-guid-. ing arm. v r
  • Fig. 13 shows the electric connections for stopping the loom when a weft thread is broken.
  • Fig. 14 represents the selvedge which may iii-obtained.
  • Fig. 15 is a partial plan view of the loom provided'with the selvedgeforming means (these means being not shown in Figs. 1 to 14 for the sake of simplicity).
  • Fig. 16 is a cross section on line EE .1. (Fig. 15).
  • the warp comprises the even numbered threads (whlch are represented in dash lines, Fig. 2) and the odd numbered threads (represented in full lines). These threads. are directed by a circular reed and they pass throughthe eyelets 8, the even numb'ered'threads passing through the outer eyelets (Fig. 1) and the odd numbered threads through -the inner eyelets.
  • the warp threads after passing through eyelets 8, are passed through an annular [way between a central guide 15, and the edge of a central aperture-provided ina circular plate 16.
  • this plate 16 is represented in cross section.
  • the cam 10's 14 has not been represented.
  • the shuttles 18 and 19 are placed on plate 16. between the upper and the lower sheds.
  • the circular plate 16 (Figs. 3, 4 and 5), is made up of a circular plate proper 20 11 provided with radial projections 21 with rounded edges, and, around its periphery, with higher projections 22.
  • the warp threads 23 of the lower shed are located in the channels formed between the projections; and the peripherieal projections 22 are used as gear teeth for retaining and rotating the circular base 21 of the shuttle.
  • the aforesaid circular base 21- is provided with a vertical spindle 25 on which the cop 26 rotates freely.
  • a semi-spherical idler 27 rotates also freely on the upper end of shaft 25. This idler 27 is tangent with the upper warp shed (Fig. 3).
  • Each shuttle is driven by a pulley 28 having a rounded edge and acting on the semi-spherical idler 27 of the shuttle through the upper warp shed 29.
  • An endless belt 30, whichis passed around the fixed central member 31 of the loom, drives these pulleys 28 when they are rotated around the axis of the. loom at a. speed which is such that the. rounded edge ofpull'ey 28 rolls on the warp threads without. any slipping.
  • the warp threads are not displaced by pulley 28 but are only pressed between said pulley and the. idler 27.
  • the pulley 28 is supported by an arm 33 keyed on a central shaft- 32.
  • ⁇ Vhen shaft 32 is rotated in the direction of the arrow 32, Fig. 4, the base 24 of the shuttle is pressed obliquely on the outer projections 22 and rotates as an hypocycloidal gear meshing with these projections, whil'e sliding on the radial projections 21 of circular plate 20.
  • the shaft 32, the two arms and the two pulleys 28 have. been omitted.
  • the fabric 17 is folded by rollers 36. Fig. 1; it is fed by a. spiked roller 37 and is wound around roller 38.
  • Cam 1% and shaft 32 are driven by a shaft 39 through bevel gears 40 and gears 41 and 42.
  • Driving shaft 39 is provided with a pulley -13 which, by means of a belt 44. drives a pulley 45 keyed on a shaft 46.
  • Shaft 16 drives the spiked roller 37 by means of a worm 47 acting on a gear 48.
  • 39 is the driving shaft of the loom and it is provided with the necessarygears or pulleys not shown.
  • Fig.6 illustrates the working of the loom.
  • Cam 14 is indicated by curve 49, 50, 51, 52 which represents in radii the distance from the channel of cam 14 (see Fig. 1) to a horizontal plane.
  • a part 57 is preferably void of warp threads in order to permit of a free access to the shuttles and also for insuring the correction of the obliquity of the weft threads as explained below with reference to Figs. 7 and S.
  • Fig. 7 represents the warp threads of the tubular fabric 17 which is fed in the direction of the arrows by the spiked roller 37 (Fig. 1).
  • the weft thread is guided by the inner edge of plate 20 (Fig. If this inner edge were horizontal, the weft thread would be located in 58, 59, (it) and 61.
  • Fig. 7. its winding around-the central part 15 (Fig. 1) being hel'ical as aeonsequeuce of the downward movement of fabric 17.
  • theinner edge is itself made helical in a direction opposite to the direction of 58, 59, 60 and 61. Said inner edge is indicated at- 58, 65, 6G and (57 (Fig.
  • Fig. 8 shows the inner edge of plate 20.
  • the shuttle comprises an adjustable brake for insuring a suitable tension of the weft threads, a thread guide for guiding the same, and a stop motion for stopping the loom when the thread is broken, (Figs. 10, 11 and 12).
  • the base of the shuttle is a circular plate 24 preferably made of fiber or the like, provided with a spindle 25 on which the cop 26 rotates freely; the semispherical idler 27 is pivoted at the upper end of spindle 25. a nut 69 being provided for retaining said idler in axial position.
  • Cop 26 is provided with an axial housing in which is located abraking spring 70 which is adjustable by means of nut 71. Spring 70 presses the lower face72 of cop 26 against a piece of leather 73. Between the base 24 and theleather, sheet- .73 a member 74 interposed, on which the thread guide 75 is ar- -ticulated (Fig. 12). A spring 76 presses thread guide 75against the inner edge of plate 20, the weft-thread being guided by the extreme end 77 of the guide which is rounded.
  • the shuttle is driven, the circular base 24 rotates in the direction of the. arrow (Fig. 10).
  • the end 77 of guide 75 is .inaim tained against the war threads by the friction of member 74 on ase 24. and the weft thread 35 is tensioned by the friction of cop 26 on the leather sheet 73.
  • the articulation of the thread guide 75 permits of laying correctl the weft thread when the inner edge of p ate is made helical.
  • the stop-motion is an electromagnetic de- 'vice which is operated by the opening of an electric circuit.
  • Member 74 is provided with a nut 7 8 having a quick or coarse pitch, which cooperates with a screw that passes through it and is provided with a circular shoe 79/ This screw is rotated by a lever 80, Fig. 10, which is fixed to it and is provided with an idler8l.
  • a spring 82 acts also on lever 80.
  • the weft thread unwound from cop 26 passes around idler 81 and enters the thread guide throu h an aperture 85in order to be guided to tie extreme end 77.' .
  • the tension of the weft thread maintains lever 80 in the position in.
  • Projections 21 are metallic andthey are insulated from each other; this is, easily obtained by making plate 20 of an insulating substance in which projections 21 are embedded, as shown in Fig. 11. r v
  • Fig. 13 diagrammatically illustrates the working.
  • the shoes 79 are intended for short-circuiting two consecutive projections 21 in any position o-f'fizhe shuttles. Every odd-numbered projection is connected with the opposite one (in Fig. 13,'only three such connections have been represented) the even numbered projections are connected with two semi-circular connections, one of which is directly connected with a terminal of the source of current'87, the other one derstood from Fig. 13, is closed throughthe two shoes 79 when the loom is in regular op eration. When a weft thread is broken, the corresponding shoe 79 is lifted, as explained, and. the circuit is opened. The loom isthus 'stoplped through the release of armature 91. T
  • the central shaft 32 is additionally provided with two pairs of radial arms 100 and 101, Figs. 15 and 16, having verticalprojections 102 and 103 at their outer ends .which may cooperate with two levers 106 and 107 keyed on two vertical shafts 104 and 105, rotating in the fixed axial member 31 of the Vided at their lower enh with folding reeds 108 and 109 which are normally located in av recess 110 ofmember 31 (see Fig. 16).
  • Springs 111 located in housings in' member 31, act on shafts 104 and 105 so as to bring reeds 108 and 109 inside recess 110.
  • arm 100 acts on lever 106 and simultaneously arm 101 acts on lever 107 so as to rotate both reeds 108 and 109 in an outward direction.
  • Shafts 104 and 105 are located at the edges of the space 57 void of warp threads.
  • a knife 112 is located in front of reeds 106 and 107 (Fig. 15) and triangular teeth 113 (Figs. 15 and 17) are interposed between the warp threads adjacent to space 57.
  • Each folding reed is made of a curved member. (Fig. 17) provided with fiat teeth 114 having a U-shaped recess.
  • the heddles'of the warp threads located near the selvedge are driven by special heddle laths' 115-116 (Fig. 18) which are themselves driven b a special cam keyed on the same shaft as t e main cam 14 and intended for imparting to the laths 115 and 116 a motion twice as rapid-as the motion of the loom.
  • This special or auxiliary cam has been represented, Fig. 18, by curve 119, 120, 121,122, 123, 124, 125 and 126.
  • the loom. as described,- is arranged for weaving'calico, but it will be readily un-- nels in said wayfor thewarp threads of the lower shed; and projections between which the. warp threads of the lower shed are .cat'cd distributed around the periphery of said circular way, and arranged substantially perpendicular to said way at the ends of the channels, said projections forming teeth for rotating the shuttles and for retaining them radially on said way.
  • a circular weaving loom comprising in combination a circular way for the shuttles; radial channels in said way; projections around the periphery of said way; and rotating shuttles sliding on said way, said shuttles having a circular base which rolls on said peripherical projections as an hypocyc'loidal gear.
  • a circular weaving loom with warp threads arranged radially around a central guide comprising in combination a circular way for t-heshuttles; radial channets in said way for the warp threads of the lower shed; projections on the periphery of said way; rotating shuttles sliding on said way.
  • said shuttles having a circular base which rolls on said projections as an hypocycloidal gear; and driving means acting on said shuttles through the upper warp she 4.
  • a circular weaving loom with warp threads arranged radially around a central guide said loom comprising in combination a circular way for the shuttles; radial channels in vsaid way; projections on the periphery .of said way; driving means for the shuttles; and rotating shuttles, each comprising a circular base, a verticahspindle fixed to said base co-axially with the same, a cop rotatable on said spindle, an adjustable spring brake for said cop, and a semispherical idler loosely pivoted on said spindle,'said idler being substantially tangentto the warp threads of the upper shed and being actuated, through said shed, by
  • driving pulleys pivoted atthe outer ends of said arms, with their axes of rotation substan tially parallel with the spindles of the shuttles, said driving pulleys having round ed edges adapted to act on the spherical idle s of the shuttles through the upper shed, said pulleys being positively rotated at such a speed that there is no sliding between their edge and the warp threads of said upper shed.
  • a circular weaving loom with warp threads arranged radially around a central guide said loom comprising in combination a circular way for the shuttles; radial channels in said way; projections on the periphery of said way; driving means for the shuttles; and rotating shuttles each comprising a circular base, a vertical co-axial spindle fixed to said base, a cop rotatable around said spindle, adjustable braking means for said cop,
  • a circular weaving loom in which the warp threads are arranged radially. around a central guide, said loom comprising in combination a circular shuttle way having a central aperture through which said guide extends with an annular space for the fabric; shuttles on said way; articulated thread guides on said shuttles, said guides being adapted to lay the weft thread on the edge of said aperture; and means whereby said thread guides are kept in permanent contact with said edge and with said central guide.
  • a circular weaving loom comprising in combination a circular shuttle way having a. central aperture; a central guide extending therethrough; radial channels in said way for the warp threads of the lower shed; proj'ections'on the periphery of said way, substantially rpendicular to the same; and
  • each 'shutt-le spindle a flat member interposed between said base and the lower face of said cop, friction members between said cop and said flat member, spring means pressing said cop against said friction members, and an articu with said central guide.
  • a circular weaving loom in which the warp threads are arranged radially around a central guide, except for a scctorwhich is void of warp threads, said loo-m comprising in combination a circular shuttle way having a central aperture for said central guide; shuttles sliding on said way; and articulated thread guides on said shuttles, said guides being adapted to lay the weft thread'on the edge of said aperture; said edge being made helical in the provided.
  • a circular weaving loom comprising in combination a circular way for the shuttles; electrically insulated radial projections on said way, said projections forming channels for the warp threads of the lower shed; shuttles sliding on said way, the base of said shuttles being made of insulating material; electrical Contact means carried by said shuttles, said means being adapted to permapart in which warp threads are 'nently connect two successive radial projections with each other during the norinal working of the shuttles; means whereby said contact means are rendered inoperative when the Weft thread is broken; an electromagnetic stopping device; and electrical connections where'by t-he loom is stopped when the contact means ofone of said shuttles are put out of operation.
  • a circular weaving loom comprising in combination a circular way for the shuttles
  • a circular weaving loom as claimed in claim let wherein the warp threads'adjacent to the selvedges are given a special motion for insuring a correct weave ofthe folded ends of the weft thread.
  • central guide, 'saidcutter being adaptedto' I cut the last laid weft thread when said.
  • a circular weaving loom in which the warp threads are arranged radially, except fora sector which is void of warp threads, comprising a cam coaxial with the loom for driving the heddles, means for cutting the weft threads in the portion void of warp threads and for making selvedges by folding the ends of the last laid weft thread after it has been cut and weaving it with the adjacent warp threads by a special drive of the latter, said drive comprising a special cam keyed on the shaft of the firstnamed canrand imparting to the heddles of the selvedge warp threads a movement twice as rapid as the movement of the other warp threads.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US183853A 1926-04-24 1927-04-14 Circular-weaving loom Expired - Lifetime US1720151A (en)

Applications Claiming Priority (1)

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FR615015T 1926-04-24

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US (1) US1720151A (fr)
CH (1) CH128433A (fr)
DE (1) DE493928C (fr)
FR (1) FR615015A (fr)
GB (1) GB269916A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487148A (en) * 1945-06-13 1949-11-08 Comptoir Linier Electric circular loom
US2582392A (en) * 1947-01-17 1952-01-15 Saint Freres Soc Circular loom for the production of closely woven fabrics
EP0080453A3 (en) * 1981-11-25 1984-05-16 Chemiefaser Lenzing Aktiengesellschaft Circular loom
US4776371A (en) * 1986-07-14 1988-10-11 Lenzing Aktiengesellschaft Circular loom
AT388400B (de) * 1983-07-20 1989-06-12 Huemer Franz Xaver Rundwebmaschine
AT389528B (de) * 1987-08-20 1989-12-27 Chemiefaser Lenzing Ag Schaftriemensegment
CN109853128A (zh) * 2019-04-04 2019-06-07 山东绿城家居有限公司 用于筒状编织物的模具配合结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH657163A5 (de) * 1982-06-21 1986-08-15 Huemer Franz Xaver Rundwebmaschine.

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2487148A (en) * 1945-06-13 1949-11-08 Comptoir Linier Electric circular loom
US2582392A (en) * 1947-01-17 1952-01-15 Saint Freres Soc Circular loom for the production of closely woven fabrics
EP0080453A3 (en) * 1981-11-25 1984-05-16 Chemiefaser Lenzing Aktiengesellschaft Circular loom
US4479517A (en) * 1981-11-25 1984-10-30 Chemiefaser Lenzing Aktiengesellschaft Low profile circular loom
AT388400B (de) * 1983-07-20 1989-06-12 Huemer Franz Xaver Rundwebmaschine
US4776371A (en) * 1986-07-14 1988-10-11 Lenzing Aktiengesellschaft Circular loom
AT389528B (de) * 1987-08-20 1989-12-27 Chemiefaser Lenzing Ag Schaftriemensegment
CN109853128A (zh) * 2019-04-04 2019-06-07 山东绿城家居有限公司 用于筒状编织物的模具配合结构

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Publication number Publication date
DE493928C (de) 1930-03-15
FR615015A (fr) 1926-12-28
GB269916A (en) 1927-11-24
CH128433A (fr) 1928-11-01

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