US3404434A - Fiber drafting system - Google Patents

Fiber drafting system Download PDF

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Publication number
US3404434A
US3404434A US612234A US61223467A US3404434A US 3404434 A US3404434 A US 3404434A US 612234 A US612234 A US 612234A US 61223467 A US61223467 A US 61223467A US 3404434 A US3404434 A US 3404434A
Authority
US
United States
Prior art keywords
apron
nose bar
roller
clips
over
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
US612234A
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English (en)
Inventor
Kenneth C Smith
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.)
Day International Corp
Original Assignee
Dayco 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 Dayco Corp filed Critical Dayco Corp
Priority to US612234A priority Critical patent/US3404434A/en
Priority to ES347340A priority patent/ES347340A1/es
Priority to NL6716104A priority patent/NL6716104A/xx
Priority to GB55402/67A priority patent/GB1203808A/en
Priority to FR1551300D priority patent/FR1551300A/fr
Priority to BE708503D priority patent/BE708503A/xx
Priority to DE1685653A priority patent/DE1685653C3/de
Priority to CH105268A priority patent/CH464023A/de
Application granted granted Critical
Publication of US3404434A publication Critical patent/US3404434A/en
Assigned to DAYCO CORPORATION reassignment DAYCO CORPORATION CERTIFICATE BY THE SECRETARY OF STATE OF MICHIGAN SHOWING MERGER OF COMPANIES, AND CHANGE OF NAME OF THE SURVIVING CORPORATION. Assignors: DAYCO CORPORATION (MERGED INTO), DAYCO CORPORATION OF MICHIGAN (CHANGED TO)
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
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons

Definitions

  • the present invention relates to a textile drafting system which is utilized in the drafting of textile fibers between a pair of adjacent aprons. More specifieally, the present invention describes an improvement for maintaining proper positioning of these aprons during operation.
  • apron type clrafting systems The essential characteristics of apron type clrafting systems is the passage of loosely intertwined fibers between these aprons to force them into usable strands. These aprons 'are passed over a series of rollers and nose bars in order to provide simple continuous rotation therefor for the purpose indicated.
  • the majority of these systems Outside the United States utilize what is referred to as the long bottom apron system or Variation thereof, in which the upper apron is a short one and passes over a roller and a nose bar.
  • the lower apron also passes about a roller and a nose bar, but in addition, passes over a large diameter tensioning roller or arm which maintains a certain desired tension on the lower apron for required traction.
  • This system has proved somewhat cumbersome, particularly since the tensioning roller or arm and associated mechanism is complicated, tends to wear, goes out of adjustment, collects dust and lint, and permits the apron to wander laterally
  • the long bottom apron system has been replaced by the short bottom apron system which is somewhat similar in that it utilizes two aprons working in conjunction with each other.
  • the upper apron is quite similar to that in the long bottom apron system, but the lower apron is also a short one rather than a long one and the tensioning roller or arm and associated mechanism has been eliminated.
  • Certain of these designs may also eliminate the problem of wandering of the bottom apron. It has been found highly advantageous to utilize the short bottom apron system because of the large saving in cost by eliminating the tensioning roller and utilizing a shorter apron.
  • FIGURE 1 is a sectional view of a prior art (long bottom apron) system is to be converted.
  • FIGURE 2 is a sectional view of the short bottom apron system after conversion.
  • FIGURE 3 is a perspective view of the novel system.
  • FIGURE 4 is a perspective view of one of the spring c ps.
  • the conventional long bottom apron system illustrated in FIGURE 1 consists of a pair of drive rollers 11 and 12 over which the two aprons are passed, and a pair of rollers 13 and 14 which are utilized in conjunction therewith.
  • a pair of nose bars 18 and 19 are also utilized in the operation of this system.
  • the upper apron 16 passes over roller 11 and nose bar 18, while the lower apron 17 passes over the roller 12, nose bar 19 and the tensioning roller 15 which is required to maintain the proper tension in the system as explained above.
  • FIGURE 2 illustrates the novel arrangement in which the rollers 11, 12, 13 and 14 and the nose bars 18 and 19 are retained as before.
  • the upper apron 16 is still passed over the roller 11 and nose bar 18, but the lower apron 17 has been replaced with ⁇ a shorter apron 20 that passes over the roller 12 and the nose bar 19 as before, but it is noted that the tension roller has been eliminated.
  • This arrangement is also illustrated in FIGURE 3 in which it can be seen that the apron 20 is prevented from lateral movement on the nose bar by the use of spring clips 21 and 22 which are made out of spring steel or other metal; or it is possible to make the clips from certain plastic materials that have springy properties, such as polyethylene, polystyrene, polycarbonate, acetal, and the like.
  • These clips are identically shaped eXcept for being reversed to provide a right-hand and left-hand clip, and are mounted by hooking them over the front surface of the nose bar 19 at the outside edge of the apron.
  • the upper curved portion 23 of the clip is hooked over the upper portion of the nose bar, while the lower curved portion 24 of the clip is hooked over the lower portion of the nose bar.
  • Extending downwardly beyond the lower surface of the nose bar are portions 25 and 26.
  • the ends of the apron will bear against portions 25 Which thus prevent lateral movement of the apron between clips.
  • a textile fiber drafting system comprising a roller (12), a nose bar (19) and an apron (20) passing over said roller and nose bar; the improvement consisting of spring clips (21, 22) mounted adjacent the outer edges of said apron, each of said clips comprising a strip of resilient material having upper (23) and lower (24) curved portions at the ends thereof hooked over the front surface of said nose bar, said lower curved portion being na-rrower than said upper curved portion, the lower end of said stri-p also including a segment (26) extending downwardly below said nose bar and having a lateral member (25) contacting the outer edges of said apron to prevent lateral movement thereof.
  • a resilient clip (21) for use in connection with a fiber drafting system comprising a roller (12), a nose bar (19) and an apron (20) passing over said roller and nose bar, comprising a strip of resilient material having an upper curved portion (23) at one end thereof and a lower curved portion (24) at the other end thereof, said portons eXtending at approximately right angles to said strip, said lower curved portion being narrower than said upper curved portion, the lower end of said strip also including a downwardly extending segment (26) having a lateral member (25) extending in a plane approximately at right angles to the planes of said strip and said curved portions.
US612234A 1967-01-27 1967-01-27 Fiber drafting system Expired - Lifetime US3404434A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US612234A US3404434A (en) 1967-01-27 1967-01-27 Fiber drafting system
ES347340A ES347340A1 (es) 1967-01-27 1967-11-18 Un dispositivo de estirado de fibras textiles.
NL6716104A NL6716104A (de) 1967-01-27 1967-11-27
GB55402/67A GB1203808A (en) 1967-01-27 1967-12-06 Fiber drafting system
FR1551300D FR1551300A (de) 1967-01-27 1967-12-20
BE708503D BE708503A (de) 1967-01-27 1967-12-22
DE1685653A DE1685653C3 (de) 1967-01-27 1968-01-03 Unternemchenkafig fur Spinn maschinenstreckwerke
CH105268A CH464023A (de) 1967-01-27 1968-01-24 Streckwerk für Textilfasern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US612234A US3404434A (en) 1967-01-27 1967-01-27 Fiber drafting system

Publications (1)

Publication Number Publication Date
US3404434A true US3404434A (en) 1968-10-08

Family

ID=24452312

Family Applications (1)

Application Number Title Priority Date Filing Date
US612234A Expired - Lifetime US3404434A (en) 1967-01-27 1967-01-27 Fiber drafting system

Country Status (8)

Country Link
US (1) US3404434A (de)
BE (1) BE708503A (de)
CH (1) CH464023A (de)
DE (1) DE1685653C3 (de)
ES (1) ES347340A1 (de)
FR (1) FR1551300A (de)
GB (1) GB1203808A (de)
NL (1) NL6716104A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513481A (en) * 1982-09-02 1985-04-30 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Easily displaceable bottom tenser

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1010080B (de) * 1955-03-15 1957-06-13 Teves Kg Alfred Waermepumpenanlage
DE1027216B (de) * 1955-04-04 1958-04-03 Borsig Ag Verfahren und Vorrichtung zum Betrieb einer Waermepumpe
DE3417516A1 (de) * 1984-05-11 1985-11-14 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Streckwerk einer spinnmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677858A (en) * 1953-04-08 1954-05-11 Whitin Machine Works Cradle for top aprons as used in high-draft systems
US2708290A (en) * 1951-11-30 1955-05-17 Skf Kugellagerfabriken Gmbh Double belt drawing mechanism
US2789320A (en) * 1954-12-08 1957-04-23 Skf Kugellagerfabriken Gmbh Textile drawing mechanisms
US2853743A (en) * 1955-01-24 1958-09-30 Russell Mfg Company Inc Top roll unit for fiber attenuating apparatus
US2943362A (en) * 1958-06-24 1960-07-05 Machinecraft Inc Spinning frame apron guides
US3037724A (en) * 1959-12-01 1962-06-05 Honeywell Regulator Co Control apparatus
US3120681A (en) * 1959-03-14 1964-02-11 Two-belt drawing mechanism for spinning machines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2708290A (en) * 1951-11-30 1955-05-17 Skf Kugellagerfabriken Gmbh Double belt drawing mechanism
US2677858A (en) * 1953-04-08 1954-05-11 Whitin Machine Works Cradle for top aprons as used in high-draft systems
US2789320A (en) * 1954-12-08 1957-04-23 Skf Kugellagerfabriken Gmbh Textile drawing mechanisms
US2853743A (en) * 1955-01-24 1958-09-30 Russell Mfg Company Inc Top roll unit for fiber attenuating apparatus
US2943362A (en) * 1958-06-24 1960-07-05 Machinecraft Inc Spinning frame apron guides
US3120681A (en) * 1959-03-14 1964-02-11 Two-belt drawing mechanism for spinning machines
US3037724A (en) * 1959-12-01 1962-06-05 Honeywell Regulator Co Control apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4513481A (en) * 1982-09-02 1985-04-30 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Easily displaceable bottom tenser

Also Published As

Publication number Publication date
CH464023A (de) 1968-10-15
ES347340A1 (es) 1969-05-16
DE1685653A1 (de) 1971-09-23
DE1685653C3 (de) 1973-09-20
FR1551300A (de) 1968-12-27
NL6716104A (de) 1968-07-29
GB1203808A (en) 1970-09-03
BE708503A (de) 1968-05-02
DE1685653B2 (de) 1973-02-15

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Legal Events

Date Code Title Description
AS Assignment

Owner name: DAYCO CORPORATION

Free format text: CERTIFICATE BY THE SECRETARY OF STATE OF MICHIGAN SHOWING MERGER OF COMPANIES, AND CHANGE OF NAME OF THE SURVIVING CORPORATION.;ASSIGNORS:DAYCO CORPORATION A DE CORP. (MERGED INTO);DAYCO CORPORATION OF MICHIGAN, A MI CORP. (CHANGED TO);REEL/FRAME:004122/0274

Effective date: 19820909