US2763033A - Textile cot - Google Patents

Textile cot Download PDF

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Publication number
US2763033A
US2763033A US325796A US32579652A US2763033A US 2763033 A US2763033 A US 2763033A US 325796 A US325796 A US 325796A US 32579652 A US32579652 A US 32579652A US 2763033 A US2763033 A US 2763033A
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US
United States
Prior art keywords
cot
cots
polyvinyl alcohol
textile
parts
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
Application number
US325796A
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English (en)
Inventor
Rockoff Joseph
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.)
Dayton Rubber Co
Original Assignee
Dayton Rubber Co
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 Dayton Rubber Co filed Critical Dayton Rubber Co
Priority to US299841A priority Critical patent/US2837775A/en
Priority to US325796A priority patent/US2763033A/en
Priority to GB18102/53A priority patent/GB730520A/en
Priority to NL179646A priority patent/NL82182C/xx
Priority to FR1086411D priority patent/FR1086411A/fr
Priority to DED15448A priority patent/DE963313C/de
Priority to CH329324D priority patent/CH329324A/de
Priority to BE521542D priority patent/BE521542A/xx
Application granted granted Critical
Publication of US2763033A publication Critical patent/US2763033A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/74—Rollers or roller bearings
    • D01H5/80—Rollers or roller bearings with covers; Cots or covers
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H2700/00—Spinning or twisting machines; Drafting devices
    • D01H2700/245—Conception or fabrication of drafting cylinders

Definitions

  • This invention relates to textile machine units, and more particularly to cots or roll covers for spinning rolls.
  • a textile roller as used in present day drawing, roving and spinning machines comprises a metal arbor having a sleeve-like roll cover known as a cot, surrounding the arbor.
  • This cover is made of leather, cork composition, or certain types of rubber compounds.
  • the resulting compounded mixture is then extruded in tubular form,- placed on a core, rag wrapped, and vulcanized. Aft'er vulcanization the rag wrap is removed and the resulting product ground to the desired size. Thetube is then cut to the desired length to form colts or roll covers and these are then mounted on the arbor. A finish grind may be used before the 001: is placed in operation
  • a preferred type of synthetic rubber in which thismateri-al is incorporated is an oil-resistant copolymer of the butadiene-acrylic nitrile type also known as Buna-N, Perbunan, GR-A, or by other wellknown terms used in the trade.
  • polyvinyl alcohol which is referred to herein, is a product obtained by the hydrolysis of polyvinyl acetate. The resulting compound is in the form of a solid gel! which will vary in physical properties depending on the degree of hydrolysis to which the acetate has been subjected.
  • the various conventional types of polyvinyl alcohol ranging from partially hydrolyzed to substantially completely hydrolyzed types have been found to function satisfactorily in applicants composition.
  • the nut shells used must be of a soft, porous and fibrous structure, the most common examples of which are the shells of peanuts and almonds.
  • the proportions of the respective materials which may be used has been found to be quite variable and in fact improved results are obtained even by the use or small amounts of both or the materials referred to. Therefore, the lower limit is that proportion at which a noticeable improvement will result which may be as low as one per cent of each.
  • the upper limit of proportions is also not critical, although as a practical matter it is undesirable to utilize a combined proportion of these materials which would be greater than double the weight of rubber in the compound.
  • a preferred range of proportions is from 10 to 100 parts of the polyvinyl alcohol by weight 'for each 100 parts of the synthetic rubber and from 10 to 100 parts by weight of the ground shell material per 100 parts of synthetic rubber.
  • the particle size is not critical but large size particles should be avoided 3 in order to insure uniform mixing, preferably a particle size is chosen which will pass through a 60 mesh sieve.
  • the particle size is generally preferred to be in the range of about 20 to 60 mesh, but here too the limiting factor as to size is that which will insure uniform mixing on the mill.
  • Figure 1 shows a view in elevation partly in cross section of a conventional type of double cot mounted on an arbor.
  • Figure 2 illustrates in cross section an enlarged view of a portion of a cross section of the cover shown in Figure 1.
  • the double arbor is represented by 10, each side of the arbor having roll covers 11 and 11a mounted thereon.
  • the particles 13 of ground shell material and 14 of polyvinyl alcohol which are embedded in the composition, are exposed at the surface of the roll as shown more clearly in Figure 2.
  • Perbunan (74% butadiene 26% acrylonitrile emulnol)
  • the ingredients corresponding to the foregoing recipe were mixed, extruded, vulcanized, and made into cots in the manner described above.
  • the resulting cots were then placed on spinning frames drafting cotton and rayon fibers in comparison with other cots of similar Perbunan compounds, but without both the polyvinyl alcohol and the peanut shell.
  • Cot A was made as above, but elminated the polyvinyl alcohol and contained 50 parts of ground peanut shell per 100 parts by weight of the rubber.
  • Cot B eliminated the peanut shell, but contained 40 parts of polyvinyl alcohol per 100 parts by weight of the rubber.
  • Cot C was made according to the above compound and contained 50 parts of peanut shell and 20 parts of polyvinyl alcohol per 100 parts by weight of the rubber.
  • Cot A after 24 weeks of operation in spinning, continued to perform satisfactorily. In drawing, the cots began eyebrowing after 156 hours.
  • Cot B after 24 weeks of operation in spinning, continued to operate satisfactorily with cotton, but began to eyebrow with rayon. In drawing, the cots began to eyebrow after 29 hours.
  • Cot C after 24 weeks of operation in spinning, continued to operate satisfactorily on both cotton and rayon. In drawing, after 286 hours of continuous operation, no signs of eyebrowing were observed.
  • cots similar to cot C were run on a high speed experimental drawing frame run at speeds double those used in the mills, and tested for eyebrowing in drawing cotton and rayon fibers.
  • Plain Perbunan cots without the ground shell and polyvinyl alcohol were also run, along with Perbunan cots containing 50 parts by weight of ground cork per 100 parts of rubber.
  • the plain Perbunan cot began to eyebrow after 15 minutes of operation, the cork-containing cots began to eyebrow after hours, while the ground shellpolyvinyl alcohol cots were continuing to run without eyebrowing after 120 hours.
  • a textile fiber drafting cot having a working surface composed of a vulcanized oil-resistant synthetic rubberlike material having intimately incorporated therewith discrete particles of polyvinyl alcohol and particles of the soft, porous and fibrous shells of a nut-like material, to effect modification of the drafting properties thereof.
  • a cot according to claim 2 wherein the synthetic rubber-like material is a butadiene-acrylonitrile copolymer.
  • a textile fiber drafting cot having a working surface composed of a vulcanized oil-resistant synthetic rubber-like material having intimately incorporated therewith from about 10 to about parts by weight of discrete particles of polyvinyl alcohol per 100 parts of a synthetic rubber-like material and from about 10 to about 100 parts by weight of particles of the soft, porous and fibrous shells of a nut-like material per 100 parts of the synthetic rubber-like material by weight.
  • a textile cot according to claim 5 wherein the synthetic rubber-like material is a butadiene-acrylonitrile copolymeri References Cited in the fileof this patent UNITED STATES PATENTS 2,304,656 Rockofi Dec. 8, 1942 2,373,698 McGeary Apr. 17, 1945 2,414,803 DAlelio Jan. 28, 1947 2,450,410 Baymiller Oct. 5, 1948 2,482,237 Berglund Sept. 20 1949 2,570,935 Frcedlander Oct. 9, 1951 2,645,587 Williamson July 14, 1953 FOREIGN PATENTS 15,988 Great Britain of 1915 511,489 Great Britain Aug. 18, 1939 579,083 Great Britain July 23, 1946 643,764 Great Britain Sept. 27, 1950 1,000,963 France Oct. 17, 1951

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Laminated Bodies (AREA)
  • Adhesives Or Adhesive Processes (AREA)
US325796A 1952-07-19 1952-07-19 Textile cot Expired - Lifetime US2763033A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US299841A US2837775A (en) 1952-07-19 1952-07-19 Textile cot
US325796A US2763033A (en) 1952-07-19 1952-07-19 Textile cot
GB18102/53A GB730520A (en) 1952-07-19 1953-06-30 Improvements in or relating to textile cot
NL179646A NL82182C (enrdf_load_stackoverflow) 1952-07-19 1953-07-06
FR1086411D FR1086411A (enrdf_load_stackoverflow) 1952-07-19 1953-07-09
DED15448A DE963313C (de) 1952-07-19 1953-07-09 Faserabweisende Walzenbezuege und Laufriemchen fuer Spinnereimaschinen
CH329324D CH329324A (de) 1952-07-19 1953-07-15 Uberzug für Walzen für Textilmaschinen
BE521542D BE521542A (enrdf_load_stackoverflow) 1952-07-19 1953-07-18

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US299841A US2837775A (en) 1952-07-19 1952-07-19 Textile cot
US325796A US2763033A (en) 1952-07-19 1952-07-19 Textile cot

Publications (1)

Publication Number Publication Date
US2763033A true US2763033A (en) 1956-09-18

Family

ID=26971430

Family Applications (2)

Application Number Title Priority Date Filing Date
US325796A Expired - Lifetime US2763033A (en) 1952-07-19 1952-07-19 Textile cot
US299841A Expired - Lifetime US2837775A (en) 1952-07-19 1952-07-19 Textile cot

Family Applications After (1)

Application Number Title Priority Date Filing Date
US299841A Expired - Lifetime US2837775A (en) 1952-07-19 1952-07-19 Textile cot

Country Status (7)

Country Link
US (2) US2763033A (enrdf_load_stackoverflow)
BE (1) BE521542A (enrdf_load_stackoverflow)
CH (1) CH329324A (enrdf_load_stackoverflow)
DE (1) DE963313C (enrdf_load_stackoverflow)
FR (1) FR1086411A (enrdf_load_stackoverflow)
GB (1) GB730520A (enrdf_load_stackoverflow)
NL (1) NL82182C (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB810016A (en) * 1956-02-28 1959-03-04 Dayton Rubber Company Textile rub apron
DE1560219C2 (de) * 1966-05-13 1979-08-23 Fa. Carl Freudenberg, 6940 Weinheim Verfahren zum Verhindern des Aufwickeins von Fasern an Walzenbezügen und Riemchen aus synthetischem Gummi bei Spinnmaschinen-Streckwerken
DE4234307A1 (de) * 1992-10-12 1994-04-14 Heidelberger Druckmasch Ag Einrichtung zur störungsfreien Produktförderung in Falzapparaten

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191515988A (en) * 1915-11-12 1916-11-13 Frank Burgess Wall and Floor Surfacing Composition and Process.
GB511489A (en) * 1938-04-09 1939-08-18 Wacker Chemie Gmbh Improvements in rollers for use in spinning
US2304656A (en) * 1941-02-20 1942-12-08 Dayton Rubber Mfg Co Spinning cot
US2373698A (en) * 1942-10-24 1945-04-17 Frank M Mcgeary Nonsparking deck tread
GB579083A (en) * 1943-04-15 1946-07-23 Int Latex Processes Ltd Improvements in or relating to the manufacture of articles of rubber-like material
US2414803A (en) * 1942-09-17 1947-01-28 Gen Electric Vulcanizable compositions
US2450410A (en) * 1946-02-27 1948-10-05 Armstrong Cork Co Roll cover for textile fiber drafting
US2482237A (en) * 1946-09-19 1949-09-20 Orr Felt & Blanket Company Impregnating paper making felts with polyvinyl alcohol containing emulsion
GB643764A (en) * 1947-02-07 1950-09-27 Armstrong Cork Co Improvements in or relating to textile rolls
US2570935A (en) * 1946-10-25 1951-10-09 Dayton Rubber Company Spinning cot
FR1000963A (fr) * 1949-12-02 1952-02-18 T E R C A P Perfectionnement aux trains de laminage pour machines à files
US2645587A (en) * 1950-07-25 1953-07-14 Us Agriculture Method of making lignocellulose pressure molded article

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2386583A (en) * 1943-03-08 1945-10-09 Dayton Rubber Mfg Co Spinning roll cover
US2467214A (en) * 1944-10-07 1949-04-12 Dayton Rubber Company Spinning cot
US2450409A (en) * 1945-12-11 1948-10-05 Armstrong Cork Co Roll cover for textile fiber drafting
FR947957A (fr) * 1947-06-17 1949-07-19 Alsacienne Constr Meca Perfectionnement apporté aux cylindres de pression des machines de filature
US2585219A (en) * 1949-08-24 1952-02-12 Goodrich Co B F Antiskid composition and method of making same

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191515988A (en) * 1915-11-12 1916-11-13 Frank Burgess Wall and Floor Surfacing Composition and Process.
GB511489A (en) * 1938-04-09 1939-08-18 Wacker Chemie Gmbh Improvements in rollers for use in spinning
US2304656A (en) * 1941-02-20 1942-12-08 Dayton Rubber Mfg Co Spinning cot
US2414803A (en) * 1942-09-17 1947-01-28 Gen Electric Vulcanizable compositions
US2373698A (en) * 1942-10-24 1945-04-17 Frank M Mcgeary Nonsparking deck tread
GB579083A (en) * 1943-04-15 1946-07-23 Int Latex Processes Ltd Improvements in or relating to the manufacture of articles of rubber-like material
US2450410A (en) * 1946-02-27 1948-10-05 Armstrong Cork Co Roll cover for textile fiber drafting
US2482237A (en) * 1946-09-19 1949-09-20 Orr Felt & Blanket Company Impregnating paper making felts with polyvinyl alcohol containing emulsion
US2570935A (en) * 1946-10-25 1951-10-09 Dayton Rubber Company Spinning cot
GB643764A (en) * 1947-02-07 1950-09-27 Armstrong Cork Co Improvements in or relating to textile rolls
FR1000963A (fr) * 1949-12-02 1952-02-18 T E R C A P Perfectionnement aux trains de laminage pour machines à files
US2645587A (en) * 1950-07-25 1953-07-14 Us Agriculture Method of making lignocellulose pressure molded article

Also Published As

Publication number Publication date
DE963313C (de) 1957-05-02
GB730520A (en) 1955-05-25
FR1086411A (enrdf_load_stackoverflow) 1955-02-11
CH329324A (de) 1958-04-30
US2837775A (en) 1958-06-10
NL82182C (enrdf_load_stackoverflow) 1956-07-16
BE521542A (enrdf_load_stackoverflow) 1955-09-16

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