US3308855A - Catch thread loom attachment - Google Patents

Catch thread loom attachment Download PDF

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Publication number
US3308855A
US3308855A US482749A US48274965A US3308855A US 3308855 A US3308855 A US 3308855A US 482749 A US482749 A US 482749A US 48274965 A US48274965 A US 48274965A US 3308855 A US3308855 A US 3308855A
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US
United States
Prior art keywords
thread
weft
shuttle
catch
loom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US482749A
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English (en)
Inventor
Angus L Power
Weidhaas Fred
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
United Elastic Corp
Original Assignee
United Elastic Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by United Elastic Corp filed Critical United Elastic Corp
Priority to US482749A priority Critical patent/US3308855A/en
Priority to GB36794/66A priority patent/GB1093297A/en
Priority to CH1250066A priority patent/CH444781A/de
Priority to NL6612073A priority patent/NL6612073A/xx
Priority to BE686010D priority patent/BE686010A/xx
Application granted granted Critical
Publication of US3308855A publication Critical patent/US3308855A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D35/00—Smallware looms, i.e. looms for weaving ribbons or other narrow fabrics

Definitions

  • weft thread In ordinary shuttle looms the weft thread, or weft threads in the case of multiple weft weaves, are passed through the shed formed by the warp threads suitably separated by heddles in accordance with the weave pattern desired. After each pick the weft beaten in by conventional reeds which move down the warp threads.
  • This ordinary weaving which has been used for centuries, depends on the weft thread being carried through the shed by the shuttle, which is often a circular shuttle, particularly on gang looms weaving multiple webs.
  • the weft thread is carried on a quill in the shuttle, and because of the circular shuttle size and shape there is a very definite limit on the amount of thread or yarn carried by the quill.
  • a precisely and exactly predetermined length of weft thread is fed to the loom at each double pick. There is, therefore, no tension on the weft thread other than the very small amount of friction as it is drawn through the shed, and so the catch thread always pulls the weft completely across and forms small, uniform, and neat binding loops. It is an advantage of the present invention that it can be used with single weft fabrics or multiple weft fabrics and that all of the advantages of the catch thread loom principle are retained while producing uniform, perfect fabrics.
  • FIG. 1 is a side elevation of a catch thread loom
  • FIG. 2 is a detailed view on an enlarged scale of one desirable method of weft thread feeding
  • FIG. 3 is a semi-diagrammatic illustration of the catch thread weaving
  • FIG. 4 is a side elevation of a modified form of weft thread feeding mechanism.
  • FIG. 3 a webbing is shown with warp threads 1, for example covered elastic threads.
  • warp threads for example covered elastic threads.
  • these elements have been omitted to show the weave more clearly.
  • the illustration is of a circular shuttle, which is common in looms for weaving multiple webbing.
  • the weft thread 2 is unwound from a very large cone 12 (FIG. 1), which can accommodate many miles of weft thread.
  • the weft thread is unwound through a customary tension means comprising plates 28 and a spring 30.
  • the tensioning means is conventional and its exact construction forms no part of the present invention, it is illustrated purely diagrammatically in FIG. 1.
  • the weft thread passes under a guide bar 3 and is caught by thread 6 from a shuttle 5, the thread being unwound from the conventional bobbin or quill 4 and being provided with side springs 7.
  • the thread emerges from the center of the circular shuttle 5 through an opening 8.
  • the conventional arced groove tracks of a rotary shuttle are not shown as they are not changed by the present invention.
  • FIG. 3 shows the shuttle at about twothirds of its travel.
  • the drawing is intended to be a diagrammatic illustration and so a relatively coarse weave is illustrated to avoid confusion of the drawing with an excessive number of warp threads.
  • FIG. 1 the main loom drive shaft 9 'is shown at the back of the loom with a gear 29 partly broken away to show its teeth.
  • This gear meshes with a larger gear 10 which rotates freely on its shaft, (not shown).
  • the gear 10 carries a framework 19 in which an eccentric pin can be moved by a fine adjusting screw 17 turned by a head 18. The particular position of the pin can then be locked by the lock nut 16.
  • Pin 15 can move in a slot in an arm 11 which is pivoted at 13 on a bracket 37 on the 100111 framework.
  • the other end of the arms carries a fork 14 in which a pin 31 of a shaft engages.
  • the shaft moves through a suitable sleeve 32.
  • the result of the rotation of the gear 10 is to move the shaft 20 up and down a predetermined distance determined by the adjustment of the screw 17.
  • This movement of the arm 11' and fork 14 is shown diagrammatically in dashed lines in a second position in which the pin and the shaft 20 has been moved up to its uppermost position.
  • FIGS. 1 and 2 A preferred form of weft feed is illustrated in FIGS. 1 and 2.
  • This feed is driven by a rack 21 on the rod 29 and a pinion 22 on a shaft 25, best seen in FIG. 2.
  • the shaft drives through an overrunning or one-way clutch 24 a feed wheel 23 around which a turn or two of the weft thread 2 is wound.
  • the shaft 25 is held in a journal 26 which is bolted to the loom frame by bolts 27.
  • the rod 20 is in its lowest position, which is shown in the solid lines in FIG. 1, this corresponds to the extreme left hand travel of the shuttle 5.
  • the heddles change the shed and the shuttle starts on its return travel to the right, having caught the weft thread 2. Now, as the shuttle moves the arm 11 moves the rod up.
  • the thread is fed to the shed without tension and in exactly the right length so that when the shuttle has moved to its right hand position the loop of the weft thread will be drawn all the way over and a binding loop of the catch thread results which is of uniform, minimum length, as illustrated at the bottom of FIG. 3.
  • the rod 26 again rises and the feed wheel 23 feeds another predetermined length of weft thread as has been described above.
  • FIG. 1 illustrates the situation where the feed is from the left side of the webbing, which is also shown in FIG. 3. If it is to feed from the right hand side, then the clutch must be turned around or adjusted so that the feed wheel turns clockwise when the clutch takes hold and not counter-clockwise as illustrated in FIG. 1. If there are two weft threads, one from the right and one from the left, the catch thread will pull them across each time and, of course, the feed mechanisms will be actuated in both travels of the rod. The right hand feed with clockwise rotation of the wheel 23 which, of course, feeds the same predetermined length of weft thread because the travel of the rod 26 is the same whether it is moving up or down.
  • a projection 33 on the rod 20 carries a roller 34 which, on movement of the rod in one direction, pulls thread from the cone 12 and on the travel of the rod unwinds a predetermined length, whereas on the reverse movement the length pulled out is slack and feeds over the guide bar 3 is exactly the same manner as in FIGS. 1 and 2.
  • the roller 34 cooperates with another roller 37 when the feed from the left hand side of the fabric is desired. This is shown in FIG.
  • catch thread loom in which at least one weft thread from external supply sources is pulled through the shed of the warp by a catch thread carried by the loom shuttle, which catch thread also binds each weft thread on at least one edge of the fabric, the shuttle having a controlled travel without overshoot, the improvement which comprises,
  • (c) means for varying the radial position of the eccentric drive and for looking it into adjusted position
  • An improved catch thread loom in which the reciprocating member is provided with a rack driving a pinion and the latter drives through an overrunning clutch a weft thread withdrawing wheel, the drive and clutch direction being synchronized so that the weft thread is fed under no tension to the catch thread in proportion and as it is drawn through the shed by the catch thread.
  • An improved catch thread loom in which the reciprocating member carries a projection around which weft thread can be passed and which in one direction of motion pulls out a predetermined length of weft thread and on the return motion feeds it slack to the catch thread as the shuttle carries the latter through the shed.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US482749A 1965-08-26 1965-08-26 Catch thread loom attachment Expired - Lifetime US3308855A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US482749A US3308855A (en) 1965-08-26 1965-08-26 Catch thread loom attachment
GB36794/66A GB1093297A (en) 1965-08-26 1966-08-17 Improvements in or relating to shuttleless looms
CH1250066A CH444781A (de) 1965-08-26 1966-08-24 Webstuhl
NL6612073A NL6612073A (enrdf_load_stackoverflow) 1965-08-26 1966-08-26
BE686010D BE686010A (enrdf_load_stackoverflow) 1965-08-26 1966-08-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US482749A US3308855A (en) 1965-08-26 1965-08-26 Catch thread loom attachment

Publications (1)

Publication Number Publication Date
US3308855A true US3308855A (en) 1967-03-14

Family

ID=23917294

Family Applications (1)

Application Number Title Priority Date Filing Date
US482749A Expired - Lifetime US3308855A (en) 1965-08-26 1965-08-26 Catch thread loom attachment

Country Status (5)

Country Link
US (1) US3308855A (enrdf_load_stackoverflow)
BE (1) BE686010A (enrdf_load_stackoverflow)
CH (1) CH444781A (enrdf_load_stackoverflow)
GB (1) GB1093297A (enrdf_load_stackoverflow)
NL (1) NL6612073A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529634A (en) * 1968-09-19 1970-09-22 French & Sons Thomas Curtain heading tape
US4004617A (en) * 1974-11-26 1977-01-25 J. P. Stevens & Co., Inc. Method for forming a double catch thread narrow weave
US20050166989A1 (en) * 2004-01-30 2005-08-04 Johny Debaes Device for cutting discarded pile loop weft yarns in a fabric and weaving machine provided with such device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US671820A (en) * 1900-06-30 1901-04-09 Frank Fischer Shuttle-loom.
US2165890A (en) * 1938-01-22 1939-07-11 Foster James William Pile wire motion for looms
GB567836A (en) * 1942-10-30 1945-03-06 Thomas Barry Wilkinson Improvements in the manufacture of textile smallwares, and in looms therefor
US2589429A (en) * 1945-11-24 1952-03-18 Sulzer Ag Device for tensioning the weft thread in looms
US3076483A (en) * 1959-06-26 1963-02-05 Sulzer Ag Tensioning weft material in a loom for weaving

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US671820A (en) * 1900-06-30 1901-04-09 Frank Fischer Shuttle-loom.
US2165890A (en) * 1938-01-22 1939-07-11 Foster James William Pile wire motion for looms
GB567836A (en) * 1942-10-30 1945-03-06 Thomas Barry Wilkinson Improvements in the manufacture of textile smallwares, and in looms therefor
US2589429A (en) * 1945-11-24 1952-03-18 Sulzer Ag Device for tensioning the weft thread in looms
US3076483A (en) * 1959-06-26 1963-02-05 Sulzer Ag Tensioning weft material in a loom for weaving

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3529634A (en) * 1968-09-19 1970-09-22 French & Sons Thomas Curtain heading tape
US4004617A (en) * 1974-11-26 1977-01-25 J. P. Stevens & Co., Inc. Method for forming a double catch thread narrow weave
US4077437A (en) * 1974-11-26 1978-03-07 J. P. Stevens Co., Inc. Apparatus for forming a double catch thread narrow weave
US20050166989A1 (en) * 2004-01-30 2005-08-04 Johny Debaes Device for cutting discarded pile loop weft yarns in a fabric and weaving machine provided with such device
US7128096B2 (en) * 2004-01-30 2006-10-31 N.V. Michel Van De Wiele Device for cutting discarded pile loop weft yarns in a fabric and weaving machine provided with such device

Also Published As

Publication number Publication date
GB1093297A (en) 1967-11-29
NL6612073A (enrdf_load_stackoverflow) 1967-02-27
BE686010A (enrdf_load_stackoverflow) 1967-02-01
CH444781A (de) 1967-09-30

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