US2734229A - Crimping apparatus - Google Patents

Crimping apparatus Download PDF

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US2734229A
US2734229A US2734229DA US2734229A US 2734229 A US2734229 A US 2734229A US 2734229D A US2734229D A US 2734229DA US 2734229 A US2734229 A US 2734229A
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Prior art keywords
yarn
chamber
crimping
feed
rolls
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    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/12—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics using stuffer boxes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J5/00—Normal steroids containing carbon, hydrogen, halogen or oxygen, substituted in position 17 beta by a chain of two carbon atoms, e.g. pregnane and substituted in position 21 by only one singly bound oxygen atom, i.e. only one oxygen bound to position 21 by a single bond
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07J—STEROIDS
    • C07J75/00—Processes for the preparation of steroids in general

Definitions

  • Another object is to provide in a stuffer crimper novel and improved means for regulating the feed of material into the crimping chamber.
  • Fig. 1 is a side elevation of a stutter crimper embodying the invention
  • Fig. 2 is a front elevation thereof with parts in section to show the details of construction
  • P Fig. 3 is a horizontal section taken on the line 3-3 of Referring to the drawing more in detail a crimping chamber block is attached to a supporting plate 11 by screws 12.
  • the block 10 is formed with a vertical bore in which a sleeve 13 is fixed as by a press fit.
  • a tube 14 forming a crimping chamber fits loosely in the sleeve 13 and is secured by a clamping nut 15 threaded onto the tapered split end 16 of the sleeve 13.
  • a fixed bracket 20 is attached to the plate 11 by screws 21.
  • the plate 11 carries a bearing block 22 in which is journaled a shaft 23 carrying a feed roll 24.
  • An arm 25 is pivoted to the bracket 20 by a pin 26.
  • the arm 25 carries a bearing block 27 in which is journaled a shaft 28 carrying a feed roll 29.
  • the shaft 23 is driven by a motor, not shown.
  • the shaft 28 is driven in unison therewith by meshing gears 30 and 31 carried by the respective shafts.
  • the lower end of the tube 14 is slotted to receive the rolls 24 and 29 and extends below the bite of the rolls to form therewith a substantially closed chamber to receive the yarn 35 for crimping.
  • the feed rolls are held in adjustable pressure engagement with the yarn 35 by a leaf spring 36 which is pivoted around a post 37 on the plate 11 with its lower end attached by a link 38 to a pin 39 on the arm 25 and with its upper end abutting against an adjustable screw 40 threaded in a plate 41 attached to the plate 11 by screws 42.
  • the tube 14 projects above the block 10.
  • a tubular plunger 45 rests on the crimped yarn 46 in the tube 14 and carries a collar 47 which is engaged by the forked end 48 of a lever 49 which is pivoted at 50 to the plate 11.
  • the collar 47 also serves as a weight to determine the back pressure on the material 46 in the crimping chamber.
  • a link 54 extends between the lever 49 and an arm 55 attached to the screw 40 and is so arranged that an upward pull on the link 54 turns the screw 40 in a direction to reduce the pressure exerted by the spring 36 on the 2,734,229 Patented Feb. 14, 1956 feed rolls 24 and 29.
  • the screw 40 is returned by a spring 56 attached to the arm 55.
  • the crimped yarn 46 is withdrawn from the crimping chamber through the plunger 45 by take-up rolls 58 or is fed directly to a winder which may be of the constant speed type, as set forth in the copending application of Ewart H. Shattuck Serial No. 413,205 filed March 1, 1954 for Filament Crimping Apparatus.
  • the yarn 35 is guided to the feed rolls by a guide 59 secured by an arm 60 to the plate 11.
  • the feed rolls 24 and 29 are driven at constant speed by a driving means (not shown) and feed the yarn 35 into the crimping chamber against the pressure exerted by the mass of crimped yarn in said chamber.
  • the mass of crimped yarn is advanced along the chamber by the pressure of the incoming yarn and is withdrawn from the top of the chamber by take-up rolls 58.
  • the plunger 45 rests upon the mass of yarn in the chamber and rises or falls according to the quantity of crimped yarn therein.
  • the plunger 45 rises it elevates the lever 49 and exerts a pull on the link 54 which turns the screw 40 in a direction to reduce the pressure exertedby' the spring 36 on the feed rolls. This reduces the frictional pull of the feed rolls and increases the yarn slippage, thereby reducing the rate of feed into the chamber.
  • the link 54 falls and allows the screw 40 to turn in a direction to increase the pressure of the feed rollers and reduce the slippage of the yarn.
  • the screw 40 is turned for this purpose by the spring 56 or the link 54 may be made rigid in which case the spring 56 is not required.
  • the change in rate of feed thus produced is selected by adjustment of the parts so that the plunger 45 remains at a substantially constant level and the mass of crimped yarn in the crimping chamber is maintained constant. In this way a constant and uniform length of treatment in the crimping chamber is assured.
  • the chamber may be heated by suitable means such as by electrical heating means as shown in said copending application.
  • Apparatus for crimping yarn or the like comprising a member having a bore forming a crimping chamber, a pair of feed rolls to feed said yarn into one end of said chamber for crimping, take up means to withdraw crimped yarn from the other end of said chamber, a member bearing against the mass of crimped yarn at said other end of said chamber and movable in accordance with changes in the quantity of said yarn therein, and feed control means responsive to movement of said member to vary the pressure of said feed rolls on said yarn to control the yarn slippage in a sense to maintain a constant quantity of yarn in said chamber.
  • Apparatus for crimping yarn or the like comprising a member having a bore forming a crimping chamber, a pair of feed rolls to feed said yarn into one end of said chamber for crimping, take-up means to withdraw crimped yarn from the other end of said chamber, a plunger in said chamber bearing against the mass of crimped yarn therein and movable in accordance with changes in quantity of yarn in said chamber and feed control means responsive to movement of said plunger to vary the pressure of said feed rolls on said yarn to control the yarn slippage in a sense to maintain a constant quantity of yarn in said chamber.
  • Apparatus for crimping yarn or the like comprising a crimping chamber, a pair of feed rolls disposed to feed said yarn into one end of said chamber for crimping,
  • Apparatus for crimping yarn or the like comprising a crimping chamber, a pair of feed rolls disposed to feed said yarn into one end of said chamber for crimping, a fixed support carrying one of said rolls, a movable support pivoted to said fixed support and carrying the other of said rolls, spring means holding said rolls in pressure engagementwith the yarn to be fed thereby, a plunger in the other .end of said chamber bearing against the mass of crimped yarn therein and movable in accordance with changes in quantity of said yarn therein, means withdrawing crimped yarn from said other end of said chamber, and means responsive to movement of said plunger to vary the pressure of said spring means so as to control the yarn slippage in a sense to maintain a constant quantity of yarn in said chamber.
  • Apparatus for crimping yarn or the like comprising a crimping chamber, a pair of feed rolls disposed to feed said yarn into one end of said chamber for crimping, a fixed support carrying one of said rolls, a movable support pivoted to said fixed support and carrying the other of said rolls, spring-means holding said rolls in pressure engagement with the yarn to be fed thereby, a plunger in the other end of said chamber bearing against the mass of crimped yarn therein and movable in accordance with changes in quantity of said yarn therein, means withdrawing crimped yarn from said other end of said chamber, a screw carried by said fixed support and adapted to control the pressure of said spring means, a lever actuated by movement of said plunger, and a link connecting said lever to turn said screw to vary the yarn slippage in a sense to maintain a constant quantity of yarn in said chamber.
  • Apparatus for crimping yarn or the like comprising a member having a bore forming a crimping chamber, a pair of feed rolls to feed said yarn into one end of said chamber for crimping, take up means to withdraw crimped yarn from the other end of said chamber, and means responsive to variations in quantity of material in said chamber to vary the pressure exerted by said feed rolls on said yarn to control the yarn slippage in a sense to maintain said quantity constant.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Description

Feb. 14, 1956 E. H. SHATTUCK 2,734,229
CRIMPING APPARATUS Filed NOV. 22, 1954 lNVENT OR Ewart JZ Sflait' BYG) ATTORNEY United States Patent CRHVIPIN G APPARATUS Ewart H. Shattuck, Wilmington, Del., assignor to Joseph Bancroft & Sons Company, Wilmington, Del., a corporatlon of Delaware Application November 22, 1954, Serial No. 470,297 6 Claims. (31. 19+) This invention relates to apparatus for crimping contmuous filament yarn and tow and has for an object to provide an apparatus of the above type having novel and improved characteristics.
Another object is to provide in a stuffer crimper novel and improved means for regulating the feed of material into the crimping chamber.
Other objects and advantages will be apparent as the nature of the invention is more fully disclosed.
The nature of the invention will be better understood from the following description, taken in connection with the accompanying drawing in which a specific embodiment has been set forth for purposes of illustration.
In the drawing:
Fig. 1 is a side elevation of a stutter crimper embodying the invention;
Fig. 2 is a front elevation thereof with parts in section to show the details of construction; and
P Fig. 3 is a horizontal section taken on the line 3-3 of Referring to the drawing more in detail a crimping chamber block is attached to a supporting plate 11 by screws 12. The block 10 is formed with a vertical bore in which a sleeve 13 is fixed as by a press fit. A tube 14 forming a crimping chamber fits loosely in the sleeve 13 and is secured by a clamping nut 15 threaded onto the tapered split end 16 of the sleeve 13.
A fixed bracket 20 is attached to the plate 11 by screws 21. The plate 11 carries a bearing block 22 in which is journaled a shaft 23 carrying a feed roll 24.
An arm 25 is pivoted to the bracket 20 by a pin 26. The arm 25 carries a bearing block 27 in which is journaled a shaft 28 carrying a feed roll 29. The shaft 23 is driven by a motor, not shown. The shaft 28 is driven in unison therewith by meshing gears 30 and 31 carried by the respective shafts.
The lower end of the tube 14 is slotted to receive the rolls 24 and 29 and extends below the bite of the rolls to form therewith a substantially closed chamber to receive the yarn 35 for crimping.
The feed rolls are held in adjustable pressure engagement with the yarn 35 by a leaf spring 36 which is pivoted around a post 37 on the plate 11 with its lower end attached by a link 38 to a pin 39 on the arm 25 and with its upper end abutting against an adjustable screw 40 threaded in a plate 41 attached to the plate 11 by screws 42.
The tube 14 projects above the block 10. A tubular plunger 45 rests on the crimped yarn 46 in the tube 14 and carries a collar 47 which is engaged by the forked end 48 of a lever 49 which is pivoted at 50 to the plate 11. The collar 47 also serves as a weight to determine the back pressure on the material 46 in the crimping chamber.
A link 54 extends between the lever 49 and an arm 55 attached to the screw 40 and is so arranged that an upward pull on the link 54 turns the screw 40 in a direction to reduce the pressure exerted by the spring 36 on the 2,734,229 Patented Feb. 14, 1956 feed rolls 24 and 29. The screw 40 is returned by a spring 56 attached to the arm 55. The crimped yarn 46 is withdrawn from the crimping chamber through the plunger 45 by take-up rolls 58 or is fed directly to a winder which may be of the constant speed type, as set forth in the copending application of Ewart H. Shattuck Serial No. 413,205 filed March 1, 1954 for Filament Crimping Apparatus. The yarn 35 is guided to the feed rolls by a guide 59 secured by an arm 60 to the plate 11.
In operation the feed rolls 24 and 29 are driven at constant speed by a driving means (not shown) and feed the yarn 35 into the crimping chamber against the pressure exerted by the mass of crimped yarn in said chamber. The mass of crimped yarn is advanced along the chamber by the pressure of the incoming yarn and is withdrawn from the top of the chamber by take-up rolls 58.
The plunger 45 rests upon the mass of yarn in the chamber and rises or falls according to the quantity of crimped yarn therein. When the plunger 45 rises it elevates the lever 49 and exerts a pull on the link 54 which turns the screw 40 in a direction to reduce the pressure exertedby' the spring 36 on the feed rolls. This reduces the frictional pull of the feed rolls and increases the yarn slippage, thereby reducing the rate of feed into the chamber. Conversely, when the plunger 45 falls, the link 54 falls and allows the screw 40 to turn in a direction to increase the pressure of the feed rollers and reduce the slippage of the yarn. The screw 40 is turned for this purpose by the spring 56 or the link 54 may be made rigid in which case the spring 56 is not required.
The change in rate of feed thus produced is selected by adjustment of the parts so that the plunger 45 remains at a substantially constant level and the mass of crimped yarn in the crimping chamber is maintained constant. In this way a constant and uniform length of treatment in the crimping chamber is assured.
The chamber may be heated by suitable means such as by electrical heating means as shown in said copending application.
It is to be understood that the invention is capable of various uses and that changes and adaptations may be made therein as will be apparent to a person skilled in the art.
What is claimed is:
1. Apparatus for crimping yarn or the like comprising a member having a bore forming a crimping chamber, a pair of feed rolls to feed said yarn into one end of said chamber for crimping, take up means to withdraw crimped yarn from the other end of said chamber, a member bearing against the mass of crimped yarn at said other end of said chamber and movable in accordance with changes in the quantity of said yarn therein, and feed control means responsive to movement of said member to vary the pressure of said feed rolls on said yarn to control the yarn slippage in a sense to maintain a constant quantity of yarn in said chamber.
2. Apparatus for crimping yarn or the like comprising a member having a bore forming a crimping chamber, a pair of feed rolls to feed said yarn into one end of said chamber for crimping, take-up means to withdraw crimped yarn from the other end of said chamber, a plunger in said chamber bearing against the mass of crimped yarn therein and movable in accordance with changes in quantity of yarn in said chamber and feed control means responsive to movement of said plunger to vary the pressure of said feed rolls on said yarn to control the yarn slippage in a sense to maintain a constant quantity of yarn in said chamber.
3. Apparatus for crimping yarn or the like, comprising a crimping chamber, a pair of feed rolls disposed to feed said yarn into one end of said chamber for crimping,
means mounting said rolls for relative lateral movement, means holding said rolls in pressure engagement with the yarn to be fed thereby, a plunger in said chamber bearing against the mass of crimped yarn therein and movable in accordance with the quantity of .yarn in said chamber, means withdrawing crimped yarn from the other end of said chamber, and means responsive to movement of said plungers to vary the pressure of said rolls on said yarn to control the yarn slippage in a sense to maintain a constant quantity of yarn insaid chamber.
4. Apparatus for crimping yarn or the like, comprising a crimping chamber, a pair of feed rolls disposed to feed said yarn into one end of said chamber for crimping, a fixed support carrying one of said rolls, a movable support pivoted to said fixed support and carrying the other of said rolls, spring means holding said rolls in pressure engagementwith the yarn to be fed thereby, a plunger in the other .end of said chamber bearing against the mass of crimped yarn therein and movable in accordance with changes in quantity of said yarn therein, means withdrawing crimped yarn from said other end of said chamber, and means responsive to movement of said plunger to vary the pressure of said spring means so as to control the yarn slippage in a sense to maintain a constant quantity of yarn in said chamber.
5. Apparatus for crimping yarn or the like, comprising a crimping chamber, a pair of feed rolls disposed to feed said yarn into one end of said chamber for crimping, a fixed support carrying one of said rolls, a movable support pivoted to said fixed support and carrying the other of said rolls, spring-means holding said rolls in pressure engagement with the yarn to be fed thereby, a plunger in the other end of said chamber bearing against the mass of crimped yarn therein and movable in accordance with changes in quantity of said yarn therein, means withdrawing crimped yarn from said other end of said chamber, a screw carried by said fixed support and adapted to control the pressure of said spring means, a lever actuated by movement of said plunger, and a link connecting said lever to turn said screw to vary the yarn slippage in a sense to maintain a constant quantity of yarn in said chamber.
6. Apparatus for crimping yarn or the like comprising a member having a bore forming a crimping chamber, a pair of feed rolls to feed said yarn into one end of said chamber for crimping, take up means to withdraw crimped yarn from the other end of said chamber, and means responsive to variations in quantity of material in said chamber to vary the pressure exerted by said feed rolls on said yarn to control the yarn slippage in a sense to maintain said quantity constant.
No references cited.
US2734229D 1954-10-08 Crimping apparatus Expired - Lifetime US2734229A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US337301XA 1954-10-08 1954-10-08
US221154XA 1954-11-22 1954-11-22
US110255XA 1955-02-11 1955-02-11
US10355XA 1955-03-01 1955-03-01

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US2734229D Expired - Lifetime US2734229A (en) 1954-10-08 Crimping apparatus
US2734251D Expired - Lifetime US2734251A (en) 1954-10-08 Crimping apparatus
US2734252D Expired - Lifetime US2734252A (en) 1954-10-08 Crimping apparatus

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US2734252D Expired - Lifetime US2734252A (en) 1954-10-08 Crimping apparatus

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US (3) US2734252A (en)
BE (1) BE541411A (en)
CH (1) CH337301A (en)
DE (1) DE1221759B (en)
FR (1) FR1143654A (en)
GB (1) GB778346A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933771A (en) * 1955-10-10 1960-04-26 Allied Chem Crimping apparatus
US3007226A (en) * 1959-10-06 1961-11-07 American Cyanamid Co Method of processing a tow of filamentary material
US3037260A (en) * 1960-05-04 1962-06-05 Allied Chem Crimp range control device
US3121935A (en) * 1961-06-30 1964-02-25 Bancroft & Sons Co J Apparatus and method for making novelty stuffer crimped yarns
DE1174939B (en) * 1958-07-18 1964-07-30 Bancroft & Sons Co J Stauchkraeuselvorrichtung for endless artificial threads, thread bundles, yarns or the like.
US3153837A (en) * 1959-04-30 1964-10-27 Barmag Barmer Maschf Device for crimping synthetic threads
DE1208447B (en) * 1957-06-13 1966-01-05 Bancroft & Sons Co J Device for curling artificial textile threads with a compression curling chamber
US3353241A (en) * 1965-09-10 1967-11-21 Bancroft & Sons Co J Apparatus for making variably bulked yarn
US3673649A (en) * 1969-01-20 1972-07-04 Elitex Zavody Textilniho Yarn feed control means
US3978561A (en) * 1973-06-01 1976-09-07 Indian Head Inc. Apparatus for texturing continuous filament yarn
US20060177384A1 (en) * 2001-12-04 2006-08-10 Brown Dale G Sialagogue coatings for interproximal devices
US20090230583A1 (en) * 2008-03-03 2009-09-17 M.A.E. S.P.A. Apparatus for crimping chemical-fibre filaments and control methods thereof

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2960752A (en) * 1955-11-04 1960-11-22 American Cyanamid Co Method for producing a crimped tow
US2960729A (en) * 1957-02-04 1960-11-22 Bancroft & Sons Co J Apparatus for treating textile fibers
US3065519A (en) * 1957-03-07 1962-11-27 English Rose Ltd Method of producing crimped thermoplastic yarns
DE1156535B (en) * 1958-08-30 1963-10-31 Barmag Barmer Maschf Pull-off device for a crimping device for synthetic threads consisting of a stuffer box and pairs of conveyor rollers
US3111740A (en) * 1959-02-02 1963-11-26 Techniservice Corp Method and apparatus for strand crimping
NL250874A (en) * 1959-04-30
US3099594A (en) * 1960-05-05 1963-07-30 Eastman Kodak Co Method for blooming filter tow
US3116531A (en) * 1960-11-17 1964-01-07 Monsanto Chemicals Yarn crimping apparatus
US3120048A (en) * 1961-04-24 1964-02-04 Monsanto Chemicals Crimping apparatus
US3147533A (en) * 1962-03-26 1964-09-08 Monsanto Co Apparatus for treating yarn
US3460214A (en) * 1966-08-23 1969-08-12 Bancroft & Sons Co J High temperature stuffer crimping apparatus
DE2733455C2 (en) * 1977-07-25 1982-12-30 Barmag Barmer Maschinenfabrik Ag, 5630 Remscheid Stuffer box for texturing chemical fibers
CN106087155B (en) * 2016-08-15 2017-07-28 苏州惠锋化纤机械有限公司 A kind of short fine production line press-down type crimping machine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE520505C (en) * 1929-01-09 1931-03-13 Wilhelm Achter Clutter
DE741106C (en) * 1938-11-12 1943-11-04 Ig Farbenindustrie Ag Device for curling a synthetic fiber ribbon
US2300791A (en) * 1941-06-14 1942-11-03 American Viscose Corp Method and apparatus for crimping textile fibrous material
DE904873C (en) * 1943-07-20 1954-02-22 Herbert Stein Method and device to compensate for density fluctuations in fiber slivers, slivers or rovings during drawing
US2500690A (en) * 1945-11-21 1950-03-14 Owens Corning Fiberglass Corp Apparatus for making fibrous products
CH295975A (en) * 1951-10-18 1954-01-31 Alexander Smith Inc Device for crimping fibers.
BE530675A (en) * 1953-08-06

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933771A (en) * 1955-10-10 1960-04-26 Allied Chem Crimping apparatus
DE1208447B (en) * 1957-06-13 1966-01-05 Bancroft & Sons Co J Device for curling artificial textile threads with a compression curling chamber
DE1174939B (en) * 1958-07-18 1964-07-30 Bancroft & Sons Co J Stauchkraeuselvorrichtung for endless artificial threads, thread bundles, yarns or the like.
US3153837A (en) * 1959-04-30 1964-10-27 Barmag Barmer Maschf Device for crimping synthetic threads
US3007226A (en) * 1959-10-06 1961-11-07 American Cyanamid Co Method of processing a tow of filamentary material
US3037260A (en) * 1960-05-04 1962-06-05 Allied Chem Crimp range control device
US3121935A (en) * 1961-06-30 1964-02-25 Bancroft & Sons Co J Apparatus and method for making novelty stuffer crimped yarns
US3353241A (en) * 1965-09-10 1967-11-21 Bancroft & Sons Co J Apparatus for making variably bulked yarn
US3673649A (en) * 1969-01-20 1972-07-04 Elitex Zavody Textilniho Yarn feed control means
US3978561A (en) * 1973-06-01 1976-09-07 Indian Head Inc. Apparatus for texturing continuous filament yarn
US20060177384A1 (en) * 2001-12-04 2006-08-10 Brown Dale G Sialagogue coatings for interproximal devices
US20090230583A1 (en) * 2008-03-03 2009-09-17 M.A.E. S.P.A. Apparatus for crimping chemical-fibre filaments and control methods thereof
US7748092B2 (en) * 2008-03-03 2010-07-06 M.A.E. S.P.A. Apparatus for crimping chemical-fibre filaments and control methods thereof
CN101565868B (en) * 2008-03-03 2013-05-15 M.A.E.股份公司 Apparatus for crimping chemical-fibres filaments and control methods thereof

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BE541411A (en)
FR1143654A (en) 1957-10-03
CH337301A (en) 1959-03-31
DE1221759B (en) 1966-07-28
US2734251A (en) 1956-02-14
GB778346A (en) 1957-07-03
US2734252A (en) 1956-02-14

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