US1615029A - Method of automatically manufacturing knotted or tufted carpets - Google Patents

Method of automatically manufacturing knotted or tufted carpets Download PDF

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Publication number
US1615029A
US1615029A US668118A US66811823A US1615029A US 1615029 A US1615029 A US 1615029A US 668118 A US668118 A US 668118A US 66811823 A US66811823 A US 66811823A US 1615029 A US1615029 A US 1615029A
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Prior art keywords
thread
carpet
tuft
binding
warp threads
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Expired - Lifetime
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US668118A
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English (en)
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Muhle Joseph
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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
    • D03D39/00—Pile-fabric looms
    • D03D39/02—Axminster looms, i.e. wherein pile tufts are inserted during weaving

Definitions

  • This invention relates to a method of man- 'lutacturing colored knotted patterned or fancy carpet-s in a mechanical and automatic wav.
  • he present invention enables the mechanical production of a colored patterned carpet by bringing about the automatic distribution of the different colored threads to be knotted.
  • My present invention primarily consists in that a plurality of binding means having gripping jaws are provided in front of a vertically arranged carpet ground or sur- ,face consisting solely of vertical warp threads and that said binding means are mechanically caused topass between two adjacent warp' threads of the carpet ground.
  • a plurality of binding means having gripping jaws are provided in front of a vertically arranged carpet ground or sur- ,face consisting solely of vertical warp threads and that said binding means are mechanically caused topass between two adjacent warp' threads of the carpet ground.
  • Provided at the back of the warp threads of the carpet ground are as many colored thread presenters as there are binding means, and these presenters, under the control of a jacquard card, are moved in such a way that the thread suspended from the presenter is brought exactly into the range of the opened gripping jaws of the binding means, when the latter have passed behind the warp threads.
  • the piece of colored thread gripped by the jaws is then, on the return of said binding means to initial p0- sition, pullednthrough the carpet ground to the front of said warp threads.
  • a relative displacement is brought about between the warp thread ground and said binding means to such an extent that the jaws of the latter on a new forward movement thereof are laterally displaced a distance equal to two warp thread divisions. If the binding means then perform a forward movement once more the colored tuft threads are respectively placed around two warp threads in the form of a U and are furthermore bound to a knot, as is usual in the manufacture of carpets.
  • the new and characteristic feature of the present invention consists in that for each binding mechanism an individual colored thread presenter is used, and the bars carrying the colored threads are controlled from a common jacquard card, which is so large as to suffice for all binding mechanisms. Therefore, the succession of the colors of the pattern, which are to appear on the carpetsurface after the completion of the binding operation, is determined by the jacquard card corresponding in breadth to that of the carpet. Thus, for instance, if six hundred bindings are to be performed across the breadth of the carpet, the jacquard card along its breadth would have to have six hundred controlling parts to act upon the thread presenters corresponding to the bind ing means.
  • Figs. 1-7 illustrate in top plan views the different steps in the formation of a Smyrna-knot and Figs. 814 illustrate in similar views the different steps in the formation of-a Persian-knot.
  • the verticallyextending warp threads of the ground fabric on which the knotsare to be bound are marked a.
  • the colored threads or tuft threads e serving for the bindin are carried by vertically movable threa presenters b adapted to brin the tuft threads into the range of a thread gripper c.
  • the presenter b is provided with a series of tubes (1 arranged above each other and serving as guides for the tuft threads.
  • the gripper 0 consists of a pointed finger f recessed at g and in form and operation resembles the well-known needles or gripper needles provided in the hand actuated embroidering machine formerly in use.
  • the gripping action is eflected by the lever c cooperating with the fin ger 7' through the medium of a strong spring h and adapted to be swung into open position by means of a cam shaft. (not shown) adapted to act on the end 0" of the lever c, as in the hand embroidering machines. Fulcrummed at 2' below the gripper, are two nipper arms is guided in a pair of movable bars Z by means of pins m, so that the jaws j of the nippers 7: will be opened or closed, when the bars are displaced relative to one another.
  • Fig.1 illustrates theinitial position of the gripper and Fig. 2 the moment the gripper is in the act of seizing the tuft thread, which is in the range of the thread presenter. At this moment the end of the lever c, by a corresponding movement of the cam shaft acting on the other end 0" of the lever 0', will close and thereby catch the thread 6. Now when the gripper moves back in the direction of the arrow 2, the tuft thread is drawn out of the thread presenter b and through the carpet ound passing between two adjacent warp reads a as is shown in Fig. 3.
  • the bar B on which a large number of thread grippers are arranged makes a lateral movement i. e. will be displaced sidewards and thereby put the tuft thread around one of the warp threads a (Fig. 4) to which the knot isto be applied.
  • the side movement of the grippers 1s of such an extent that when the gripper is moved again rearwardly in thedirection of the arrow the tuft thread is folded in the form of a hook around the adjacent second warp thread adapted to receive the knot, this ste Fig. 5.
  • the nippers also have performed a forward movement in the direction of the arrowy, and, like the grippers c, on passing through the carpet being illustrated in ground, their jaws have opened to grip the two rear ends of the tuft thread from below, as is shown in Fig. 5.
  • the thread gripper a will be caused to reopen by a corresponding action of the cam shaft, thereby releasing the previously gripped tuft thread and then return in the direction of the arrow 2, as shown in Fig. 6.
  • the jaws j also make a backward movement and draw the tuft thread ends through the carpet ground passing between the warp threads in the manner illustrated in Fig. 7
  • the warp threads are alternately-guided in two movable parallel and adjacent bars, by the displacement of which in one direction the warp threads are made to cross one another, and by the displacement of which in the opposite direction the warp threads are restored to their normal position.
  • the tuft threads are gripped in the same way by the grippers and a relative displacement of the binding elements and warp threads is brought about, instead of the typical U- shaped fold in the formation of the Smyrnaknot as shown in Fig. 7, the form shown in Fig. 14 is produced.
  • the periodical succession is no more a a. a a etc. but a a, a a, etc., as is shown in F 9, whereby the crossing of the warp threads in the course of their longitudinal direction is indicated.
  • the binding grippers f, G are moved toward the carpet ground passing between two vertically extending warp threads directly above or below a crossing point through the carpet ground to theopposite side thereof and seizing the tuft thread projecting from the tube (Z of the thread presenter. I).
  • the binding gripper on its then following backward movelueut draws the tuft thread through the carpet ground. After this the bars heretofore referred to and whereby the warp threads are crossed come again into operation and restore the original position of the warp threads, as shown in Fig. 12.
  • the tuft thread passed throughthe carpet ground is then caused to assume the form shown in Fig. 12 by the tension of the warp threads itself, when the latter attain their initial position. While the binding grippers c, f now perform a renewed forward movement in the direction of the carpet ground, the back end of the tuft thread seized by the gripper will be passed throu h the earpetground and be brought into t e position shown in Fig. 13. e

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
US668118A 1922-10-18 1923-10-12 Method of automatically manufacturing knotted or tufted carpets Expired - Lifetime US1615029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL56608D DE417916C (de) 1922-10-18 1922-10-18 Verfahren und Vorrichtung zur mechanischen Herstellung von Knuepfteppichen

Publications (1)

Publication Number Publication Date
US1615029A true US1615029A (en) 1927-01-18

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Family Applications (1)

Application Number Title Priority Date Filing Date
US668118A Expired - Lifetime US1615029A (en) 1922-10-18 1923-10-12 Method of automatically manufacturing knotted or tufted carpets

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US (1) US1615029A (fr)
DE (2) DE417916C (fr)
FR (1) FR607116A (fr)

Also Published As

Publication number Publication date
DE417916C (de) 1925-08-20
DE429541C (de) 1926-05-28
FR607116A (fr) 1926-06-26

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