US3529755A - Method and a device for threading - Google Patents

Method and a device for threading Download PDF

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Publication number
US3529755A
US3529755A US733105A US3529755DA US3529755A US 3529755 A US3529755 A US 3529755A US 733105 A US733105 A US 733105A US 3529755D A US3529755D A US 3529755DA US 3529755 A US3529755 A US 3529755A
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US
United States
Prior art keywords
leading strip
strip
conveyor
leading
ropes
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
US733105A
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English (en)
Inventor
Sven Spangenberg
Ingemar Karlsson
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.)
Svenska Flaktfabriken AB
Original Assignee
Svenska Flaktfabriken AB
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 Svenska Flaktfabriken AB filed Critical Svenska Flaktfabriken AB
Application granted granted Critical
Publication of US3529755A publication Critical patent/US3529755A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/04—Paper-break control devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/10—Methods
    • Y10T225/16—Transversely of continuously fed work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0448—With subsequent handling [i.e., of product]
    • Y10T83/0467—By separating products from each other

Definitions

  • ABSTRACT OF THE DISCLOSURE For transferring a leading strip of web material from a leading strip conveyor of a cylinder dryer to the leading strip conveyor of a fan dryer, comprising a suction device underlying the discharge from the first leading strip conveyor to slightly tension the leading strip which falls from the discharge, a deflector guide to displace the leading strip into registry with the inlet of the second conveyor, said guide including blowing means to blow a portion of the strip into the inlet of the second conveyor, and a severing device to cut off the leading end of the strip which is beyond the portion caught by the second conveyor.
  • the invention solves this problem.
  • the leading strip When the front end of the leading strip has passed the first leading strip conveyor, the leading strip is allowed to fall freely down onto the floor of the machine room.
  • the leading strip thereby leaves its engagement with the ropes and stabilizes in a path through the cylinder dryer which is located slightly inside of the first leading strip conveyor and from the last cylinder in the cylinder dryer runs in a free fall to the machine room floor.
  • the strip When a solid object is being moved from the side against the falling leading strip, the strip immediately clings to the object, because the strip still is somewhat wet and tends to adhere to solid surfaces.
  • the leading strip For being able by guide surfaces to displace the running leading strip laterally outwards against the second leading strip conveyor and into engagement therewith, the leading strip must be pulled forward by a force exceeding the force of its own weight.
  • a guide means By effecting such a force by means of a separate drawing means it is gained, that a guide means can be placed in abutment to the running leading strip above the drawing means, and the leading strip by the guide means can be guided to the desired path.
  • the leading strip adheres to the guiding surfaces and clings thereto.
  • a drawing means 7 is provided to catch the falling part of the leading strip 6 and apply thereto a slight tensile stress, which is sufliciently great for allowing the path of the leading strip to be guided by a guide means 8 provided with guide surfaces.
  • the guide means 8 the leading strip can be moved in a path suitable for engagement with the second leading strip conveyor, which in the embodiment shown comprises two belts 9 and 10 so deflected via a pulley 11 that they abut to each other for pressing between themselves and advance the front end of the leading strip.
  • blow means comprise discharge openings in said guide means 5 6 and means connecting said discharge openings to a pres- FOREIGN PATENTS sure medlum sou c 234,713 11/1909 Germany.

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  • Paper (AREA)
US733105A 1967-05-30 1968-05-29 Method and a device for threading Expired - Lifetime US3529755A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7532/67A SE305123B (enrdf_load_stackoverflow) 1967-05-30 1967-05-30

Publications (1)

Publication Number Publication Date
US3529755A true US3529755A (en) 1970-09-22

Family

ID=20271620

Family Applications (1)

Application Number Title Priority Date Filing Date
US733105A Expired - Lifetime US3529755A (en) 1967-05-30 1968-05-29 Method and a device for threading

Country Status (3)

Country Link
US (1) US3529755A (enrdf_load_stackoverflow)
FI (1) FI53010C (enrdf_load_stackoverflow)
SE (1) SE305123B (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505897A1 (fr) * 1981-05-15 1982-11-19 Valmet Oy Moyens pour couper et guider la bande marginale d'une feuille continue de papier, dans une machine a papier
WO1985000841A1 (en) * 1983-08-04 1985-02-28 J. M. Voith Gmbh Paper machine
US5832626A (en) * 1996-04-19 1998-11-10 Voith Sulzer Papiermaschinen Gmbh Single felt dryer group
US6038973A (en) * 1997-06-27 2000-03-21 Heidelberger Druckmaschinen Ag Web infeeding or threading device for rotary printing presses
US6131784A (en) * 1997-12-22 2000-10-17 Valmet-Karlstad Ab Threading device
DE19941426A1 (de) * 1999-08-30 2001-03-01 Voith Paper Patent Gmbh Vorrichtung und Verfahren zum Überführen eines Materialbahnstreifens
US6241138B1 (en) * 1999-11-02 2001-06-05 C. A. Lawton Paper web threading apparatus and method for threading a paper web through a papermaking machine
US6474205B1 (en) * 1997-04-01 2002-11-05 Voith Sulzer Papiertechnik Patent Gmbh Device for cutting off and conveying streaks and method for cutting off and transferring a threading streak

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE234713C (enrdf_load_stackoverflow) *
US1283889A (en) * 1917-07-05 1918-11-05 Great Northern Paper Co Automatic feeding means for paper-machines.
US1676305A (en) * 1927-06-10 1928-07-10 Great Northern Paper Co Paper making
US2529184A (en) * 1949-09-15 1950-11-07 Bagley & Sewall Company Web threader for winder machines

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE234713C (enrdf_load_stackoverflow) *
US1283889A (en) * 1917-07-05 1918-11-05 Great Northern Paper Co Automatic feeding means for paper-machines.
US1676305A (en) * 1927-06-10 1928-07-10 Great Northern Paper Co Paper making
US2529184A (en) * 1949-09-15 1950-11-07 Bagley & Sewall Company Web threader for winder machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2505897A1 (fr) * 1981-05-15 1982-11-19 Valmet Oy Moyens pour couper et guider la bande marginale d'une feuille continue de papier, dans une machine a papier
WO1985000841A1 (en) * 1983-08-04 1985-02-28 J. M. Voith Gmbh Paper machine
US4648942A (en) * 1983-08-04 1987-03-10 J.M. Voith Gmbh Paper machine
AT384050B (de) * 1983-08-04 1987-09-25 Voith Gmbh J M Einrichtung zum einfaedeln eines randstreifens im bereich der trockenpartie einer papiermaschine
US5832626A (en) * 1996-04-19 1998-11-10 Voith Sulzer Papiermaschinen Gmbh Single felt dryer group
US6474205B1 (en) * 1997-04-01 2002-11-05 Voith Sulzer Papiertechnik Patent Gmbh Device for cutting off and conveying streaks and method for cutting off and transferring a threading streak
US6038973A (en) * 1997-06-27 2000-03-21 Heidelberger Druckmaschinen Ag Web infeeding or threading device for rotary printing presses
US6131784A (en) * 1997-12-22 2000-10-17 Valmet-Karlstad Ab Threading device
DE19941426A1 (de) * 1999-08-30 2001-03-01 Voith Paper Patent Gmbh Vorrichtung und Verfahren zum Überführen eines Materialbahnstreifens
US6241138B1 (en) * 1999-11-02 2001-06-05 C. A. Lawton Paper web threading apparatus and method for threading a paper web through a papermaking machine

Also Published As

Publication number Publication date
FI53010C (enrdf_load_stackoverflow) 1978-01-10
FI53010B (enrdf_load_stackoverflow) 1977-09-30
SE305123B (enrdf_load_stackoverflow) 1968-10-14

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