|  | D |
SECTION D — TEXTILES; PAPER

PAPER

|  | D21 |
PAPER-MAKING; PRODUCTION OF CELLULOSE

|  | D21F |
PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON

|  | D21F |
Subclass index
MAKING CONTINUOUS WEBS |
Complete machines | 9/00
Details |
wet end, transfer to press section, press section, dryer section | 1/00, 2/00, 3/00, 5/00
other details | 7/00
Processes | 11/00
MAKING DISCONTINUOUS SHEETS | 13/00

|  | D21F 1/00 |
Wet end of machines for making continuous webs of paper

|  | D21F 1/02 |
· | Head boxes of Fourdrinier machines

|  | D21F 1/04 |
· | Head boxes of cylinder machines

|  | D21F 1/06 |
· | Regulating pulp flow

|  | D21F 1/08 |
· | Regulating consistency

|  | D21F 1/10 |
· | Wire-cloths (production of wire-cloths Fulltext... Hierarchy... Expanded...B21F)

|  | D21F 1/12 |
· · | Seams thereof

|  | D21F 1/14 |
· · · | welded

|  | D21F 1/16 |
· · · | sewn

|  | D21F 1/18 |
· | Shaking-apparatus for wire-cloths and associated parts

|  | D21F 1/20 |
· · | in Fourdrinier machines

|  | D21F 1/22 |
· · | in cylinder machines

|  | D21F 1/24 |
· | Tilting, raising, or lowering mechanisms for wire-cloths

|  | D21F 1/26 |
· · | in Fourdrinier machines

|  | D21F 1/28 |
· · | in cylinder machines

|  | D21F 1/30 |
· | Protecting wire-cloths from mechanical damage

|  | D21F 1/32 |
· | Washing wire-cloths or felts

|  | D21F 1/34 |
· | Construction or arrangement of spraying pipes

|  | D21F 1/36 |
· | Guiding mechanisms (suction rolls Fulltext... Hierarchy... Expanded...D21F 3/10)

|  | D21F 1/38 |
· · | Pads

|  | D21F 1/40 |
· · | Rolls

|  | D21F 1/42 |
· · | Jets

|  | D21F 1/44 |
· | Watermarking devices

|  | D21F 1/46 |
· · | Dandy rolls

|  | D21F 1/48 |
· | Suction apparatus (suction rolls Fulltext... Hierarchy... Expanded...D21F 3/10)

|  | D21F 1/50 |
· · | Suction boxes with rolls

|  | D21F 1/52 |
· · | Suction boxes without rolls

|  | D21F 1/54 |
· | Skimming devices, e.g. froth ledges

|  | D21F 1/56 |
· | Deckle frame arrangements

|  | D21F 1/58 |
· | Deckle straps

|  | D21F 1/60 |
· | Cylinder moulds

|  | D21F 1/62 |
· | Sand traps

|  | D21F 1/64 |
· | Magnetic separators

|  | D21F 1/66 |
· | Pulp catching, de-watering, or recovering; Re-use of pulp-water

|  | D21F 1/68 |
· · | using hydrocyclones (hydrocyclones Fulltext... Hierarchy... Expanded...B04C)

|  | D21F 1/70 |
· · | by flotation

|  | D21F 1/72 |
· · | using funnels

|  | D21F 1/74 |
· · | using cylinders

|  | D21F 1/76 |
· · · | with suction

|  | D21F 1/78 |
· · · | with pressure

|  | D21F 1/80 |
· · | using endless screening belts

|  | D21F 1/82 |
· · | adding fibre agglomeration compositions

|  | D21F 2/00 |
Transferring webs from wet ends to press sections

|  | D21F 3/00 |
Press section of machines for making continuous webs of paper

|  | D21F 3/02 |
· | Wet presses

|  | D21F 3/04 |
· · | Arrangements thereof

|  | D21F 3/06 |
· · | Means for regulating the pressure

|  | D21F 3/08 |
· · | Pressure rolls

|  | D21F 3/10 |
· · | Suction rolls, e.g. couch rolls

|  | D21F 5/00 |
Dryer section of machines for making continuous webs of paper

|  | D21F 5/02 |
· | Drying on cylinders

|  | D21F 5/04 |
· · | on two or more drying cylinders

|  | D21F 5/06 |
· · | Regulating temperature

|  | D21F 5/08 |
· · | Arrangement of steam points in the cylinders

|  | D21F 5/10 |
· · | Removing condensate from the interior of the cylinders

|  | D21F 5/12 |
· | Festoon drying

|  | D21F 5/14 |
· | Drying webs by applying vacuum

|  | D21F 5/16 |
· | Drying webs by electrical heating

|  | D21F 5/18 |
· | Drying webs by hot air

|  | D21F 5/20 |
· | Waste heat recovery

|  | D21F 7/00 |
Other details of machines for making continuous webs of paper

|  | D21F 7/02 |
· | Mechanical driving arrangements

|  | D21F 7/04 |
· | Paper-break control devices

|  | D21F 7/06 |
· | Indicating or regulating the thickness of the layer; Signal devices

|  | D21F 7/08 |
· | Felts

|  | D21F 7/10 |
· · | Seams thereof

|  | D21F 7/12 |
· · | Drying

|  | D21F 9/00 |
Complete machines for making continuous webs of paper

|  | D21F 9/02 |
· | of the Fourdrinier type

|  | D21F 9/04 |
· | of the cylinder type

|  | D21F 11/00 |
Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibreboard production, on paper-making machines

|  | D21F 11/02 |
· | of the Fourdrinier type

|  | D21F 11/04 |
· · | paper or board consisting of two or more layers

|  | D21F 11/06 |
· | of the cylinder type

|  | D21F 11/08 |
· · | paper or board consisting of two or more layers

|  | D21F 11/10 |
· | Making imitation mould-made paper

|  | D21F 11/12 |
· | Making corrugated paper or board

|  | D21F 11/14 |
· | Making cellulose wadding, filter- or blotting paper

|  | D21F 11/16 |
· | Making paper strips for spinning or twisting

|  | D21F 13/00 |
Making discontinuous sheets of paper, pulpboard, or cardboard, or of wet web, for fibreboard production (making discontinuous sheets of board in moulds Fulltext... Hierarchy... Expanded...D21J; drying paper, pulpboard, or cardboard, in discontinuous-sheet form Fulltext... Hierarchy... Expanded...F26B)

|  | D21F 13/02 |
· | Making hand-made paper

|  | D21F 13/04 |
· | on cylinder board machines

|  | D21F 13/06 |
· · | Format rolls

|  | D21F 13/08 |
· · · | Automatic cut-off rolls

|  | D21F 13/10 |
· | using board presses

|  | D21F 13/12 |
· · | Platen presses