US1660640A - Paper-making machine - Google Patents

Paper-making machine Download PDF

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Publication number
US1660640A
US1660640A US174971A US17497127A US1660640A US 1660640 A US1660640 A US 1660640A US 174971 A US174971 A US 174971A US 17497127 A US17497127 A US 17497127A US 1660640 A US1660640 A US 1660640A
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United States
Prior art keywords
tube
hot air
tubes
paper
machine
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Expired - Lifetime
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US174971A
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English (en)
Inventor
Eduard V Asten
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Individual
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Individual
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Publication of US1660640A publication Critical patent/US1660640A/en
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F5/00—Dryer section of machines for making continuous webs of paper
    • D21F5/02—Drying on cylinders

Definitions

  • Iii paper makin machines the drying of the paper web is e ected by evaporating the moisture on the so-called drier part in which w -the paper web is conveyed by the aid f drier felts over heated drying cylinders.
  • a good drying can only be obtained ithere eX- ists a sufficiently large surface area at which the evaporation can take place. This surface is formed by the paper web itself and by the drier felts which come into contact with the paper web and abso'rb moisture from the same. The moisture absorbed has to be evaporated again at the surface' of the felts, which means that the felts have to be dried in their turn.
  • rotating Atubes are mounted in the machine transversely thereof, these tubes being supplied with hot air and having iii their walls slots through which the hot air ows out in a current which constantly changes its direction owing tothe rotation of the tubes.
  • the said slots are' referably arranged in the tube walls 'on 'elical lines so that the air leaving'the tubes -will act like a feed screw and convey the vapors laterally out of the machine.
  • the subject-mattei ⁇ of the invention is 1745,971, and in Germany November 11, 1926.
  • Fig. lL is a diagrammatic side elevation of the dryer part of a paper making' inachine comprising special Ihot air tubes and felt guide rollers constructed as hot air tubes, ,f i
  • FIG. 2 is a plan view of a hot air tube
  • Fig. 3 is a similar view of a slightly modified tube, and A Fig. 4 is a longitudinal section through the tube shown in Fio. 2.
  • a are the drying cylinders, b
  • the arrows show how the air currents leaving the hot air tubes iiow against the surfaces of the -paper web and drier felts.
  • slots e are arrangedon a line extending helically around'the tube.
  • the hot air leavin the tube through the slots acts like a fee screw and carries the vapors away towards one side of the machine.
  • This type of tube is to be used if it isintended to carry the vapors laterally away for pro- .tecting the attendants, who are assumedto be standing at the opposite side of the machine, against the heat and the vapors.
  • the ⁇ said type of tube may also be used with advantage if it is intended'to arrange at the. particular side of the machine towards which the vapors are carried, a special drawing-oil device for the vapors.
  • the slots e are arranged on' two helical lines which extend from a common point in the transverse middle plane of the tube in opposite'directions to ,the ends of the tube.
  • the supply of the hot air to the tubes tl, f takes r'place at one end, as indicated at w in Fig. 2-4, while the other end of Ithetubes is closed.
  • the tube is provided in its interior with a cone-shaped body g.
  • the air will ow along the outer surface of the cone g.
  • the cone causes a gradual reduction of the air space or sectional area of the tube towards the closed end of the tube.
  • crease of the sectional area of the tube is made to correspond with the increase of the area of the air slots e in the direction towards the closed end. It is thereby rendered possible to maintain the hot air at a substantially uniform pressure throughout the entire length of the tube and to produce a uniformly strong air motion throughout the width of the machine.
  • the described tubes or rollers may also be used for drying other fibrous webs.
  • the tubes f may be driven from pulleys h on the shafts of the cylinders a through the medium of belts 'i cooperating with said pulleys h and with pulleys k on the tubes f.
  • rotary tubes mounted in the mac ine transversely thereof, one endof the tubes being open for the introduction of hot air into the tubes, air outlet slots arranged on helical lines in the c linder walls of the tubes, and means in the tubes for gradually reducing the section of passage from the air nlb end towards the opposite end lof the 2.
  • a drier means cooperating with the drier part of paper-making machines comprising hollow cylindrical bodies having a closed end and an open end, and arranged in the free spaces between the pairs of the paper web and felts in said drier part of the paper-making machine, the walls of the bodies being formed with openings spirally Idisposedairially of the bodies, the open ends of the bodies being adapted to be connected to a supply of hot air, and means for rotating the bodies to cause the hot air to pass through the openings in a stream following a convolute path and acting at all times in the same direction to dispel the vapors accumulating in the machine.
  • a drying means for the drier part of paper-making machines comprising a tube end to a source of hot air supply, the wall of the tube being formed with openings, and means arrange-d interiorly of the tube to gradually reduce the cross-sectional area thereof open to the hot air current from the inletend to the closed end of the tube.
  • a ⁇ drying means for the drier part of paper-making machines comprising a tube closed at one end and open at the opposite end to a source of hot air supply, the wall of the tube being formed with openings and means arranged interiorly of the tube to gradually reduce the cross-sectional area hot ai-r current from the inlet en d to the closed end of the tube, the cross-sectional area reduction of the tube being in such proportion to the area of the openings as to maintaina substantially constant pressure of the hot air throughout the ⁇ length Vof the tube.
  • tubes I.arrange in the free spaces be- EDUARD v. As'rnn.

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  • Paper (AREA)
  • Drying Of Solid Materials (AREA)
US174971A 1926-11-11 1927-03-12 Paper-making machine Expired - Lifetime US1660640A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE273610X 1926-11-11

Publications (1)

Publication Number Publication Date
US1660640A true US1660640A (en) 1928-02-28

Family

ID=6016091

Family Applications (1)

Application Number Title Priority Date Filing Date
US174971A Expired - Lifetime US1660640A (en) 1926-11-11 1927-03-12 Paper-making machine

Country Status (4)

Country Link
US (1) US1660640A (enrdf_load_stackoverflow)
BE (1) BE340578A (enrdf_load_stackoverflow)
FR (1) FR630118A (enrdf_load_stackoverflow)
GB (1) GB273610A (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2789366A (en) * 1951-08-24 1957-04-23 American Enka Corp Method and apparatus for treating textile material
US2825979A (en) * 1956-07-03 1958-03-11 John J Verwayen Adjustable air-flow dryer
US2862245A (en) * 1951-09-07 1958-12-02 American Viscose Corp Method for producing films
US3004348A (en) * 1958-03-17 1961-10-17 Svenska Flaektfabriken Ab Device for regulating the distribution and direction of a gaseous medium
US3206869A (en) * 1961-12-01 1965-09-21 Beloit Iron Works Apparatus for applying a gloss to paper in drying thereof
US3263344A (en) * 1963-07-31 1966-08-02 Stickle Steam Specialties Co I Drying system for paper-making machinery and the like
US3345757A (en) * 1967-10-10 Dryer ventilating roll
US3376653A (en) * 1966-12-06 1968-04-09 Beloit Corp Dryer ventilation
US3384973A (en) * 1966-06-09 1968-05-28 Svenska Flaektfabriken Ab Ventilating dryers
US3388477A (en) * 1964-09-19 1968-06-18 Klingelnberg Soehne Ferd Apparatus for checking tooth flanks, especially of involute straight and helical spur gears
US3388479A (en) * 1965-09-13 1968-06-18 Thomas A Gardner Pocket ventilator for web drying equipment
US3925906A (en) * 1972-08-14 1975-12-16 Beloit Corp Hot wire drying
US4922627A (en) * 1989-09-29 1990-05-08 Albany International Corp. Press drying concept
DE3907480A1 (de) * 1989-03-08 1990-09-13 Voith Gmbh J M Leitwalze fuer eine materialbahn
EP0692569A3 (de) * 1994-07-13 1998-01-07 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Verfahren und Vorrichtung an einem Papiermaschinenzylindertrockner mit Zweisiebführung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1093814A (en) * 1977-03-15 1981-01-20 Zoltan Beke Web drier section

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3345757A (en) * 1967-10-10 Dryer ventilating roll
US2789366A (en) * 1951-08-24 1957-04-23 American Enka Corp Method and apparatus for treating textile material
US2862245A (en) * 1951-09-07 1958-12-02 American Viscose Corp Method for producing films
US2825979A (en) * 1956-07-03 1958-03-11 John J Verwayen Adjustable air-flow dryer
US3004348A (en) * 1958-03-17 1961-10-17 Svenska Flaektfabriken Ab Device for regulating the distribution and direction of a gaseous medium
US3206869A (en) * 1961-12-01 1965-09-21 Beloit Iron Works Apparatus for applying a gloss to paper in drying thereof
US3263344A (en) * 1963-07-31 1966-08-02 Stickle Steam Specialties Co I Drying system for paper-making machinery and the like
US3388477A (en) * 1964-09-19 1968-06-18 Klingelnberg Soehne Ferd Apparatus for checking tooth flanks, especially of involute straight and helical spur gears
US3388479A (en) * 1965-09-13 1968-06-18 Thomas A Gardner Pocket ventilator for web drying equipment
US3384973A (en) * 1966-06-09 1968-05-28 Svenska Flaektfabriken Ab Ventilating dryers
US3376653A (en) * 1966-12-06 1968-04-09 Beloit Corp Dryer ventilation
US3925906A (en) * 1972-08-14 1975-12-16 Beloit Corp Hot wire drying
DE3907480A1 (de) * 1989-03-08 1990-09-13 Voith Gmbh J M Leitwalze fuer eine materialbahn
US4922627A (en) * 1989-09-29 1990-05-08 Albany International Corp. Press drying concept
EP0692569A3 (de) * 1994-07-13 1998-01-07 Andritz-Patentverwaltungs-Gesellschaft m.b.H. Verfahren und Vorrichtung an einem Papiermaschinenzylindertrockner mit Zweisiebführung

Also Published As

Publication number Publication date
GB273610A (en) 1927-07-07
FR630118A (fr) 1927-11-23
BE340578A (enrdf_load_stackoverflow)

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