US736596A - Paper-making machine. - Google Patents

Paper-making machine. Download PDF

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Publication number
US736596A
US736596A US12188102A US1902121881A US736596A US 736596 A US736596 A US 736596A US 12188102 A US12188102 A US 12188102A US 1902121881 A US1902121881 A US 1902121881A US 736596 A US736596 A US 736596A
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United States
Prior art keywords
felt
paper
water
making machine
cylinder
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Expired - Lifetime
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US12188102A
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Johannes Groendahl
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D33/00—Filters with filtering elements which move during the filtering operation
    • B01D33/44—Regenerating the filter material in the filter

Definitions

  • My invention relates to apparatus used in paper, cellulose, and wood-pulp factories for gathering up the fibers in the water which runs off from the machinery that forms paper or cardboard out of the pulp.
  • my invention I direct this water to an apparatus comprising a movable endless felt, on which the fibers deposit, while the water passes through the pores of the felt.
  • the fibers thus gathered on the felt are by suitable means removed therefrom and utilized, and the water is in this manner quite clear and free from pulp when it leaves the factory.
  • My invention consists in suitable means for carrying out such process, and in the annexed drawing I have shown a diagram of one form of apparatus, showing a vertical section of the same.
  • a represents an endless felt, Z) a tank, and c a cylinder constructed about as the cylinders in the usual cylindermachines.
  • the felt is carried over this cylinder and over suitable guide-rolls, as shown.
  • the felt also passes between a pair of rollers e e, where the pulp gatheredon the felt is removed in the well-known way.
  • Above the cylinder which is perforated, as usual, on its cylindrical surface, is mounted a hollow bridge-piece d. The latter is perforated on the faces in contact with the felt.
  • the cylinder is jonrnaled on a hollow shaft h, which has a downwardly-projecting branch o, formshall not be sucked into the cylinder.
  • the cylinder turns freely on the said hollow shaft.
  • the bridge-piece 61 serves to cover the upper part of the cylinder which is not covered by the felt, so that air
  • pulp will be deposited on the felt and removed by the roll a or other suitable means.
  • Some pulp may still adhere to the felt, and in order that this pulp shall not fill up the pores of the felt and make it less permeable for water
  • I claim- In an apparatus for separating fibers from water running off from paper-making and similar machinery the combination with an endless felt of means for supporting part of such felt in such way as to form a sifter for the water to be treated; and means for removing the fibers deposited on the felt, said felt being twisted so that the two sides of the felt are alternately exposed to the water to be treated.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Paper (AREA)

Description

No. 736,596. PATENTED AUG. 18, 1903.
J. GRUNDAHL.
PAPER MAKING MACHINE. APPLICATION FILED. SEPT. z. 1902.
:10 MODEL.
.Zvzvenior:
771i; ZGJUZUL Patented August 18, 1903.
JOIIANNES eRoNDAHL, OF BmeNA, NEAR HoNEFos, NORWAY.
PAPER-MAKING MACHINE.
SPECIFICATION forming part of Letters Patent N0. 7 36,596, dated August 18, 1903. Application filed September 2, 1902. Serial No. 121,881. (No model.)
T0 to whom it may concern:
Be it known that I, J OHANNES GR O NDAHL, a subject of the King of Sweden and Norway, residing at Baagna, near Honefos, Norway, have invented certain new and useful Improvements in Paper-Making Machines, of which the following is a specification.
My invention relates to apparatus used in paper, cellulose, and wood-pulp factories for gathering up the fibers in the water which runs off from the machinery that forms paper or cardboard out of the pulp. According to my invention I direct this water to an apparatus comprising a movable endless felt, on which the fibers deposit, while the water passes through the pores of the felt. The fibers thus gathered on the felt are by suitable means removed therefrom and utilized, and the water is in this manner quite clear and free from pulp when it leaves the factory.
My invention consists in suitable means for carrying out such process, and in the annexed drawing I have shown a diagram of one form of apparatus, showing a vertical section of the same.
In the drawing, a represents an endless felt, Z) a tank, and c a cylinder constructed about as the cylinders in the usual cylindermachines. The felt is carried over this cylinder and over suitable guide-rolls, as shown. The felt also passes between a pair of rollers e e, where the pulp gatheredon the felt is removed in the well-known way. Above the cylinder, which is perforated, as usual, on its cylindrical surface, is mounted a hollow bridge-piece d. The latter is perforated on the faces in contact with the felt. The cylinder is jonrnaled on a hollow shaft h, which has a downwardly-projecting branch o, formshall not be sucked into the cylinder.
ing a connection through which the water gathering in the bottom of the cylinder may be removed. The cylinder turns freely on the said hollow shaft. The bridge-piece 61 serves to cover the upper part of the cylinder which is not covered by the felt, so that air As the cylinder rotates and the felt is moved with it in the direction of the arrow, pulp will be deposited on the felt and removed by the roll a or other suitable means. Some pulp may still adhere to the felt, and in order that this pulp shall not fill up the pores of the felt and make it less permeable for water I prefer to make use of a felt which is twisted, as indicated at f, in such manner that the two sides of the felt are alternately utilized as a pulpgathering surface. The other side will then be cleansed from adhering pulp by the water passing through the felt. This arrangement is of great importance for the uniform and economical working of the apparatus.
I claim- In an apparatus for separating fibers from water running off from paper-making and similar machinery the combination with an endless felt of means for supporting part of such felt in such way as to form a sifter for the water to be treated; and means for removing the fibers deposited on the felt, said felt being twisted so that the two sides of the felt are alternately exposed to the water to be treated.
In witness whereof I have hereunto set my hand in presence of two witnesses.
JOI-IANNES GRONDAHL.
Witnesses:
ALFRED J. BRYN, O. MULLER.
US12188102A 1902-09-02 1902-09-02 Paper-making machine. Expired - Lifetime US736596A (en)

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US12188102A US736596A (en) 1902-09-02 1902-09-02 Paper-making machine.

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US12188102A US736596A (en) 1902-09-02 1902-09-02 Paper-making machine.

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881127A (en) * 1955-12-30 1959-04-07 Sun Oil Co Separation process
US3168471A (en) * 1961-10-16 1965-02-02 Hirs Gene Filter apparatus
US3302795A (en) * 1963-08-30 1967-02-07 Gen Motors Corp Self-cleaning filter
US3369663A (en) * 1967-04-06 1968-02-20 John J. Serrell Process and apparatus for the application of centrifugal force
US3372811A (en) * 1964-04-16 1968-03-12 Ajem Lab Inc Rotating drum filter apparatus
US3373877A (en) * 1964-09-22 1968-03-19 Ajem Lab Inc Filter device
US4057105A (en) * 1976-06-30 1977-11-08 Caterpillar Tractor Co. Self-cleaning screen assembly for radiators and method
US20050178734A1 (en) * 2004-02-12 2005-08-18 Kilmer Michael C. Filter for use in closed vessels allowing the use of filter media which can be renewed without opening the vessel, and method of using same

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2881127A (en) * 1955-12-30 1959-04-07 Sun Oil Co Separation process
US3168471A (en) * 1961-10-16 1965-02-02 Hirs Gene Filter apparatus
US3302795A (en) * 1963-08-30 1967-02-07 Gen Motors Corp Self-cleaning filter
US3372811A (en) * 1964-04-16 1968-03-12 Ajem Lab Inc Rotating drum filter apparatus
US3373877A (en) * 1964-09-22 1968-03-19 Ajem Lab Inc Filter device
US3369663A (en) * 1967-04-06 1968-02-20 John J. Serrell Process and apparatus for the application of centrifugal force
US4057105A (en) * 1976-06-30 1977-11-08 Caterpillar Tractor Co. Self-cleaning screen assembly for radiators and method
US4125147A (en) * 1976-06-30 1978-11-14 Caterpillar Tractor Co. Method for continuously maintaining a radiator free of debris
US20050178734A1 (en) * 2004-02-12 2005-08-18 Kilmer Michael C. Filter for use in closed vessels allowing the use of filter media which can be renewed without opening the vessel, and method of using same

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