US3685551A - Selvage forming device for looms - Google Patents

Selvage forming device for looms Download PDF

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Publication number
US3685551A
US3685551A US55724A US3685551DA US3685551A US 3685551 A US3685551 A US 3685551A US 55724 A US55724 A US 55724A US 3685551D A US3685551D A US 3685551DA US 3685551 A US3685551 A US 3685551A
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United States
Prior art keywords
slay
suction tube
bracket
pin
bar
Prior art date
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Expired - Lifetime
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US55724A
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English (en)
Inventor
Alexei Nikolaevich Parshin
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Individual
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Individual
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Publication date
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Publication of US3685551A publication Critical patent/US3685551A/en
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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
    • D03D47/48—Forming selvedges by inserting cut end of weft in next shed, e.g. by tucking, by blowing

Definitions

  • the present invention relates to looms, and more particularly to selvage forming devices employed in such looms.
  • selvage forming devices comprising an element located at one edge of the width of the fabric to be woven and holding the end of the weft thread beaten up by the reed, and a hook fixed on a swivel pin at the other edge of the fabric, with the hook entering the shed formed by the warp threads and retracting therefrom.
  • the pin derives its swivelling movement into the shed and back therefrom from a complex eccentric-motion gear, and which catches the end of the beaten up wefi thread during its entry into the shed and lays such end in the shed during its retraction from the latter, in order to form the selvage.
  • the complex eccentric gear causes inconveniences in servicing the loom, and does not permit locating the selvage forming device sufficiently closely to the fabric.
  • the device requires comparatively long weft ends, which correspondingly entail a very wide selvage. Such selvage is often cut away when cutting piece goods, since it cannot be let into the seam.
  • the basic object of the invention is to provide a selvage forming device with such a disposition of the suction tube that the device has a simple design, is convenient in servicing, and enable a selvage of fine quality to be formed.
  • a selvage forming device comprising an element located at one edge of the width of the fabric to be woven, and'holding the end of a weft thread beaten up by a reed, and a hook-like suction tube fixed on a pin at the other edge of the fabric, with the hook entering a shed formed by warp threads and retracting therefrom catching the end of the beaten up weft thread during its entry into the shed, and laying such end in the shed during the retraction of suction tube from the shed, so as to form the selvage
  • the suction tube being, according to the invention, connected with a slay through a mechanism imparting the oscillating movement of the slay into a oscillating movement of the suction tube in a plane perpendicular to the movement of the slay into the shed and back therefrom.
  • the mechanism comprise a bracket affixed on the slay, and a drawbar, one end of the drawbar being through a universal joint, connected to the bracket, and the other end also being through a universal joint, attached to a single-arm lever rigidly fixed on the suction tube pin, with the pin being housed in a sleeve connected through a bar with a bracket mounted on the loom frame.
  • Such a construction of the selvage forming device simplifies its design and makes it possible to obtain a fabric selvage of fine quality.
  • the suction tube is and connected to the piping of an air system for developing a vacuum inside the suction tube for catching the end of the weft thread beaten up by the reed.
  • FIG. l is a view in perspective of the selvage forming device according to the invention.
  • Fig. 2 is a fragmentary diagrammatic view illustrating the suction tube position at the moment of catching the end of the weft thread.
  • the selvage forming device comprises a hook-like suction tube 1 (Fig. I) located at the edge of the width of the fabric to be woven, and entering the shed formed by warp threads 2 and retracting therefrom.
  • the hook is rigidly fixed on a pin 3, and is connected with a slay or batten 4 of the loom through a mechanism for imparting the oscillating movement of the slay (conventionally shown in the drawing by arrow A) into an oscillating movement of the section tube 1 in a plane perpendicular to the movement of the slay into the shed and back (the suction tube movement being conventionally shown by arrow B).
  • the mechanism comprises a bracket 5 fixed on the slay 4 and to which one end of a drawbar 7 is attached via a universal joint 6.
  • the other end of the drawbar is, through a universal joint 8, connected to a single-arm lever 9, and the lever 9 is rigidly fixed on the pin 3 of the hook I.
  • the pin 3 is housed in a sleeve 10 which, by means of a bar 1 l, is connected with a bracket 12 fixed on frame 13 of the loom.
  • the length of the bar 11, and hence, the angle of turn of the pin 3 are adjusted by displacing the bar inside the bracket 12 and fixing the bar in position by a set bolt 14.
  • the hook I is flattened towards its middle portion, and has a scarf at its free end, to provide for favorable entry into, and movement in, the shed.
  • the sleeve 10 is set atan angleato the bar 11.
  • the free end of the pin 3 which is hollow, is connected to a piping 15 of an air system capable of developing a vacuum inside the hook I for catching the end of a weft thread 16 already beaten up by a reed 17 a carried by the slay.
  • the end of the weft thread 16 is caught during movement of the tube 1 into the shed, with such end being laid in the shed during the retraction of the hook I from the shed, and as a result of thereof, the selvage of fabric 18 is formed, as shown in FIG. 2.
  • the end of the laid weft thread 16 is held in position, before being laid in the shed by the suction tube 1, with the aid of an element in the form of a spongy material 19 secured on a fixed base 20 and located at the edge of the width of the fabric to be woven.
  • the end of the weft thread 16 lies on the top surface of the spongy material 19.
  • the material 16 may have the shape of a fork, and in this case, the end of the thread 16 is disposed free end of the between the ends of the fork, while the scarfed free end of the hook I also moves between the ends.
  • the selvage is formed as follows:
  • This end of the weft thread lies on the spongy material 19, since as the reed 17 beats up the weft thread, it presses such end to the material 19, thereby compressing the material to some extent.
  • the scarfed free end of the suction tube 1 approaches and nearly touches the material, while the vacuum supplied through the piping 15, the hollow pin 3, and the suction tube 1 creates an intense suction at the scarfed free end of the suction tube due to which the end of the weft thread 16 is caught and drawn inside the suction tube 1. As the suction tube retracts from the shed, the drawn in end of the weft thread is laid therein.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US55724A 1969-07-22 1970-07-17 Selvage forming device for looms Expired - Lifetime US3685551A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1350941A SU284904A1 (ru) 1969-07-22 1969-07-22 Механизм дл образовани кромки ткани на ткацком станке

Publications (1)

Publication Number Publication Date
US3685551A true US3685551A (en) 1972-08-22

Family

ID=20446790

Family Applications (1)

Application Number Title Priority Date Filing Date
US55724A Expired - Lifetime US3685551A (en) 1969-07-22 1970-07-17 Selvage forming device for looms

Country Status (7)

Country Link
US (1) US3685551A (de)
CH (1) CH514705A (de)
CS (1) CS155316B1 (de)
DE (1) DE2036401A1 (de)
GB (1) GB1263449A (de)
NL (1) NL150529B (de)
SU (1) SU284904A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552187A (en) * 1984-01-23 1985-11-12 Maschinenfabrik Sulzer-Ruti Ag Weaving machine
US5702549A (en) * 1993-11-30 1997-12-30 Sumitomo Rubber Industries, Ltd. Tire including tire fabric and ply including tire fabric

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1067637B (it) * 1976-07-30 1985-03-16 Sbabo Silvio Dispositivo per ottenere cimosse semplici o doppie
IT1067636B (it) * 1976-07-30 1985-03-16 Sbabo Silvio Dispositivo per tagliare trattene re e ripiegare il capo di trama per ottenere cimosse
DE3367942D1 (en) * 1983-09-01 1987-01-15 Rueti Ag Maschf Device for tucking-in the weft ends in a loom
DE58901147D1 (de) * 1988-07-14 1992-05-21 Sulzer Ag Pneumatische leistenlegevorrichtung fuer webmaschinen.
EP0360742B1 (de) * 1988-09-23 1992-02-05 GebràœDer Sulzer Aktiengesellschaft Leistenlegevorrichtung für eine Webmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2374951A (en) * 1939-12-07 1945-05-01 Botany Worsted Mills Loom
US2757692A (en) * 1951-09-25 1956-08-07 Coppa Ferdinando Weaving looms
US3443602A (en) * 1966-04-15 1969-05-13 Ruti Machinery Work Ltd Device and method for producing a selvedge

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2374951A (en) * 1939-12-07 1945-05-01 Botany Worsted Mills Loom
US2757692A (en) * 1951-09-25 1956-08-07 Coppa Ferdinando Weaving looms
US3443602A (en) * 1966-04-15 1969-05-13 Ruti Machinery Work Ltd Device and method for producing a selvedge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4552187A (en) * 1984-01-23 1985-11-12 Maschinenfabrik Sulzer-Ruti Ag Weaving machine
US5702549A (en) * 1993-11-30 1997-12-30 Sumitomo Rubber Industries, Ltd. Tire including tire fabric and ply including tire fabric

Also Published As

Publication number Publication date
SU284904A1 (ru) 1976-05-25
CH514705A (de) 1971-10-31
CS155316B1 (de) 1974-05-30
DE2036401A1 (de) 1971-04-29
NL150529B (nl) 1976-08-16
NL7010801A (de) 1971-01-26
GB1263449A (en) 1972-02-09

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