US3342219A - Device for promoting constant tension in all warp threads of a circular weaving loom - Google Patents

Device for promoting constant tension in all warp threads of a circular weaving loom Download PDF

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Publication number
US3342219A
US3342219A US427660A US42766065A US3342219A US 3342219 A US3342219 A US 3342219A US 427660 A US427660 A US 427660A US 42766065 A US42766065 A US 42766065A US 3342219 A US3342219 A US 3342219A
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US
United States
Prior art keywords
compensators
ring
thread
warp threads
length
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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
Application number
US427660A
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English (en)
Inventor
Malchair Armand
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.)
Iwan Simonis SA
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Iwan Simonis S A Sa
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Filing date
Publication date
Application filed by Iwan Simonis S A Sa filed Critical Iwan Simonis S A Sa
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Publication of US3342219A publication Critical patent/US3342219A/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D37/00—Circular looms

Definitions

  • the object of the present invention is to provide a device by means of which it is possible to feed the warp threads, starting from an ordinary cylindrical beam, onto a circular arc the actual length of which is greater than that of the beam, thus avoiding the disadvantages mentioned above.
  • One device mainly consists of a static curved part for guiding the warp threads, substantially inscribed in the imaginary cylindrical surface, tangent to the compensator ring, whose shape is established in such way that all the warp threads of one and the same beam have the same length which is at least equal to the tangent leading from one extremity of the circular are fed by aforesaid beam to the corresponding upper extremity of the cylindrical surface of aforesaid beam.
  • a static curved guiding part is provided with means for avoiding any crossing of the warp threads.
  • FIGURE 1 is a diagrammatic top view, with partial cut, of a weaving loom with three beams equipped with the device conforming to the present invention
  • FIGURE 2 is a diagrammatic radial section by a plane whose trace follows the straight line IIII of FIG URE 1;
  • FIGURE 3 is a diagrammatic perspective view, illustrating the function of the device according to the present invention.
  • FIGURE 4 is a section by a plane whose trace follows the straight line 1VIV of FIGURE 3;
  • FIGURE 5 is a perspective view of part of the device according to the present invention, illustrating more particularly the means provided for preventing a crossing of the warp threads;
  • FIGURE 6 is a view in the direction of arrow F5 of FIGURE 4.
  • FIGURE 7 is a section by a plane whose trace follows the straight line VII-VII of FIGURE 4.
  • the circular weaving loom to which the device according to the present invention is being applied is one of large diameter, fed by three beams. It namely comprises the following major parts: the beams 1 and their wire tension probing thread-holders 2, the compensators 3, the mechanisms for the guiding element 4, the shuttle holders 5, the shuttles 6, the weaving ring 7, the armature mechanism 8, the selector 9, the drum 10, the tension roller 11 and the winding drum for the fabric 12.
  • the sum of the lengths of the three beams 1 is less than the developed width of an imaginary vertical cylindrical surface which is externally tangent to the ring of compensators 3. This term is used to define the circumferential length of the ring of compensators at its point of contact with the threads.
  • R radius of aforesaid imaginary cylindrical surface
  • a be equal to 70 cm., the difference in level between the axis of the tension probing thread-holder 2 and the plane containing the contact circumference between aforesaid imaginary cylindrical surface and the ring of compensators 3
  • .b equal to 50 cm., be the shortest distance between the axis of aforesaid probing thread-holder 2 and aforesaid imaginary surface
  • 2c equal to 200 cm., the length of the beam 1.
  • the device according to the present invention does away with this drawback. It substantially consists of a beam 1, a curved rod 14 the horizontal projection of which coincides with the horizontal projection of aforesaid imaginary cylindrical surface, whereby the curvature of aforesaid rod 14 is such that, for each warp thread, the sum of the distance measured on the one hand between the tension probing thread-holder 2 and aforesaid rod 14 and on the other hand from aforesaid rod 14 to the circle of compensators is constant, i.e., equal to the length of the external threads called respectively 15 and 16 in FIGURE 3.
  • the length of aforesaid rod 14 is such that the generatrices of aforesaid imaginary cylindrical surface, passing through its extremities, determine on the contact circumference of aforesaid surface with the ring of compensators an arc equal to whereby n is the number of beams provided on the loom in question.
  • Rod 14 is fastened at its ends to any appropriate rigid part of the loom, such as, for instance, the supports 17 of the circular platform 18.
  • rod 14 In order to prevent the warp threads 13 from crossing, rod 14 will preferably be provided with a longitudinal comb.
  • this comb consists of sections of trapezoidal springs 19 disposed in each others extension along aforesaid rod 14.
  • the latter is provided with radial axes 20 onto which are slid square tube lengths 21 fastened to aforesaid axes 20 by axes 22.
  • the corresponding extremities of two adjacent spring sections 19 are fastened respectively to opposite faces 23 and 24 of a tube length 21. In this way, the warp threads 13 are maintained at the proper distance from each other with a minimum of stress.
  • a circular weaving loom having a central ring of compensators, a plurality of thread-carrying beams located around and extending tangentially to said ring of compensators, the circumferential length of said ring of compensators being greater than the sum of the lengths of said beams, and a plurality of elongated thread holders, each thread holder being located adjacent a separate beam and receiving threads unwound from that beam, the improvement which comprises a curved static element aligned with said ring of compensators and having a curvature every point of which is so spaced from said thread holders and said ring of compensators that every thread extending from a thread holder to the static element and from the static element to the ring of compensators has the same length.
  • Device according to claim 2 characterized by the fact that aforesaid comb-shaped part consists of a plurality of trapezoidal spring sections.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
US427660A 1964-01-28 1965-01-25 Device for promoting constant tension in all warp threads of a circular weaving loom Expired - Lifetime US3342219A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6400633A NL6400633A (de) 1964-01-28 1964-01-28

Publications (1)

Publication Number Publication Date
US3342219A true US3342219A (en) 1967-09-19

Family

ID=19789122

Family Applications (1)

Application Number Title Priority Date Filing Date
US427660A Expired - Lifetime US3342219A (en) 1964-01-28 1965-01-25 Device for promoting constant tension in all warp threads of a circular weaving loom

Country Status (8)

Country Link
US (1) US3342219A (de)
BE (1) BE658669A (de)
CH (1) CH423657A (de)
DE (1) DE1535628B1 (de)
ES (1) ES308673A1 (de)
GB (1) GB1063192A (de)
NL (1) NL6400633A (de)
SE (1) SE307114B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426805A (en) * 1966-03-30 1969-02-11 Weaving Research & Textile Com Looms
US4015637A (en) * 1974-11-11 1977-04-05 N.F. Doweave, Inc. Triaxial fabric forming machine and components thereof
US4977933A (en) * 1985-05-28 1990-12-18 Joss Company Circular loom for weaving ribbon-shaped materials
US20160122921A1 (en) * 2014-11-03 2016-05-05 Goodrich Corporation System and method for manufacturing net shape preform from textile strips

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US603407A (en) * 1898-05-03 Means for forming wide sheds of warp from narrow or short supply-beams
US1444590A (en) * 1919-09-06 1923-02-06 Crespi Silvio Benigno Circular-weaving loom
US2002091A (en) * 1932-02-20 1935-05-21 Celanese Corp Guiding or spacing of yarns in warp form
US2087322A (en) * 1934-07-23 1937-07-20 Celanese Corp Method of weaving
US2141679A (en) * 1935-12-13 1938-12-27 Balsach Juan Circular loom
DE699084C (de) * 1937-04-09 1940-11-22 Juan Balsach
US2433190A (en) * 1945-06-07 1947-12-23 Marius Fayolle Alias Marcel Fa Warp supply for circular weaving machines
US2679264A (en) * 1950-07-27 1954-05-25 Qualitex Soc Dunod & Cie Arrangement of the delivery of the warp threads to circular weaving looms
US2747618A (en) * 1952-02-22 1956-05-29 Fairwest U K Ltd Circular looms

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE909200C (de) * 1950-12-30 1954-04-15 Johannes Balfour Van Burleigh Webstuhl, z.B. Rundwebstuhl
FR1346318A (fr) * 1962-10-17 1963-12-20 Iwan Simonis S A Dispositif de frein pour arrêts instantanés de métiers circulaires

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US603407A (en) * 1898-05-03 Means for forming wide sheds of warp from narrow or short supply-beams
US1444590A (en) * 1919-09-06 1923-02-06 Crespi Silvio Benigno Circular-weaving loom
US2002091A (en) * 1932-02-20 1935-05-21 Celanese Corp Guiding or spacing of yarns in warp form
US2087322A (en) * 1934-07-23 1937-07-20 Celanese Corp Method of weaving
US2141679A (en) * 1935-12-13 1938-12-27 Balsach Juan Circular loom
DE699084C (de) * 1937-04-09 1940-11-22 Juan Balsach
US2433190A (en) * 1945-06-07 1947-12-23 Marius Fayolle Alias Marcel Fa Warp supply for circular weaving machines
US2679264A (en) * 1950-07-27 1954-05-25 Qualitex Soc Dunod & Cie Arrangement of the delivery of the warp threads to circular weaving looms
US2747618A (en) * 1952-02-22 1956-05-29 Fairwest U K Ltd Circular looms

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3426805A (en) * 1966-03-30 1969-02-11 Weaving Research & Textile Com Looms
US4015637A (en) * 1974-11-11 1977-04-05 N.F. Doweave, Inc. Triaxial fabric forming machine and components thereof
US4977933A (en) * 1985-05-28 1990-12-18 Joss Company Circular loom for weaving ribbon-shaped materials
US20160122921A1 (en) * 2014-11-03 2016-05-05 Goodrich Corporation System and method for manufacturing net shape preform from textile strips
US9644296B2 (en) * 2014-11-03 2017-05-09 Goodrich Corporation System and method for manufacturing net shape preform from textile strips
US10214839B2 (en) 2014-11-03 2019-02-26 Goodrich Corporation System and method for manufacturing net shape preform from textile strips

Also Published As

Publication number Publication date
ES308673A1 (es) 1965-05-16
CH423657A (fr) 1966-10-31
DE1535628B1 (de) 1970-05-21
SE307114B (de) 1968-12-16
GB1063192A (en) 1967-03-30
BE658669A (de) 1965-05-17
NL6400633A (de) 1965-07-29

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