US1423969A - Multiple-roll supercalender - Google Patents

Multiple-roll supercalender Download PDF

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Publication number
US1423969A
US1423969A US496686A US49668621A US1423969A US 1423969 A US1423969 A US 1423969A US 496686 A US496686 A US 496686A US 49668621 A US49668621 A US 49668621A US 1423969 A US1423969 A US 1423969A
Authority
US
United States
Prior art keywords
roll
rolls
hard
paper
elastic
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
US496686A
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English (en)
Inventor
Schurmann Carl
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.)
Individual
Original Assignee
Individual
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
Priority to GB14117/21A priority Critical patent/GB163668A/en
Priority to FR535863D priority patent/FR535863A/fr
Application filed by Individual filed Critical Individual
Priority to US496686A priority patent/US1423969A/en
Application granted granted Critical
Publication of US1423969A publication Critical patent/US1423969A/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
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G1/00—Calenders; Smoothing apparatus

Definitions

  • the journals are cast in one piece with the roll and are not made as separate steel trunnions or a steel shaft pressed through the roll, they have to be made of a comparatively large diameter, so as to render them proof against breaking, whereby-the frictional moment in the hearing is unnecessarily increased, in particular in the lowest roll.
  • the terminal hard rolls are, by taking up the total pressure, caused to sag, and this sagging is communicated tothe neighboring, elastic (paper or cotton) roll, as the latter will, after a short time, adapt itself to the harder roll.
  • Thesagged hard roll therefore, rounds the paper roll above it,
  • FIG. 1 shows the heretofore employed arrangement of rolls in side elevation
  • Fig. 1 only the lower part of the same in front elevation
  • Figs. 2 and 2 respectively are the corresponding views of the new arrangement of the rolls, which has the following essential features:
  • the drive of the calender has, in consequence, been shifted from the lowermost or third. roll to the second or seventh roll from below.
  • the total number of hard rolls has been reduced by 1, that of the elastic rolls been increased by 1. Therefore, obviously, also the number of hard roll scrapers is reduced by 1, and the total height of the calender is, at the same diameter of the rolls, reduced by the difference between the diameter of a medium sized paper roll and a thin hard roll.
  • a tightly compressed paper or cotton roll therefore, verywell adapted asterminal roll in a cale der, already alone forthe reason that its journals are made in one piece with the inner steel shaft.
  • the second or 4th roll may. according to the total number of rolls employed, be chosen.
  • the Lth roll When the Lth roll is driven, it will be found advisable to drive from it also the second roll from below with a small lead, so that the tension pro duccd in the upper passages will not too suddenly disappear in the paper web and thereby cause the latter to tear at the driven roll.
  • an elastic terminal roll disposed below or at the top, or both below and at the top.

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  • Paper (AREA)
US496686A 1920-05-20 1921-08-29 Multiple-roll supercalender Expired - Lifetime US1423969A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB14117/21A GB163668A (en) 1920-05-20 1921-05-20 Improvements in multi-roll paper calenders
FR535863D FR535863A (fr) 1920-05-20 1921-05-20 Calandre à papier à cylindres multiples
US496686A US1423969A (en) 1920-05-20 1921-08-29 Multiple-roll supercalender

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE535863X 1920-05-20
US496686A US1423969A (en) 1920-05-20 1921-08-29 Multiple-roll supercalender

Publications (1)

Publication Number Publication Date
US1423969A true US1423969A (en) 1922-07-25

Family

ID=23973695

Family Applications (1)

Application Number Title Priority Date Filing Date
US496686A Expired - Lifetime US1423969A (en) 1920-05-20 1921-08-29 Multiple-roll supercalender

Country Status (3)

Country Link
US (1) US1423969A (fr)
FR (1) FR535863A (fr)
GB (1) GB163668A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044392A (en) * 1959-07-10 1962-07-17 Kimberly Clark Co Papermaking machine
US3111894A (en) * 1962-04-17 1963-11-26 West Virginia Pulp & Paper Co Calender vibration eliminator
US3180251A (en) * 1963-05-24 1965-04-27 John Inglis Co Ltd Calenders
US3190212A (en) * 1963-05-27 1965-06-22 Beloit Corp Gloss calender
US3331313A (en) * 1965-09-24 1967-07-18 Black Clawson Co Calender stacks having transverse pressure sensing and adjustment means
US3340796A (en) * 1964-11-25 1967-09-12 Kimberly Clark Co Paper supercalender stack
US3905288A (en) * 1972-12-22 1975-09-16 Valmet Oy Paper-finishing calenders
US5916419A (en) * 1997-12-01 1999-06-29 Westvaco Corporation Calendering system using hard and soft nips

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044392A (en) * 1959-07-10 1962-07-17 Kimberly Clark Co Papermaking machine
US3111894A (en) * 1962-04-17 1963-11-26 West Virginia Pulp & Paper Co Calender vibration eliminator
US3180251A (en) * 1963-05-24 1965-04-27 John Inglis Co Ltd Calenders
US3190212A (en) * 1963-05-27 1965-06-22 Beloit Corp Gloss calender
US3340796A (en) * 1964-11-25 1967-09-12 Kimberly Clark Co Paper supercalender stack
US3331313A (en) * 1965-09-24 1967-07-18 Black Clawson Co Calender stacks having transverse pressure sensing and adjustment means
US3905288A (en) * 1972-12-22 1975-09-16 Valmet Oy Paper-finishing calenders
US5916419A (en) * 1997-12-01 1999-06-29 Westvaco Corporation Calendering system using hard and soft nips
US6183603B1 (en) 1997-12-01 2001-02-06 Westvaco Corporation Calendering system using hard and soft nips

Also Published As

Publication number Publication date
GB163668A (en) 1921-08-25
FR535863A (fr) 1922-04-22

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