|  | B |
SECTION B — PERFORMING OPERATIONS; TRANSPORTING

|  | B01 - B07 |
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force, using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/LIQUID OR SOLID/GAS SEPARATION |
Method |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B01D
using magnetic or electrostatic effect | B03C
Apparatus |
General operations | B01D
by centrifugal force | B01D
using centrifuges or free-vortex apparatus | B04B, B04C
using magnetic or electrostatic effect | B03C
SOLID/SOLID SEPARATION |
Method |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B07B
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B
Apparatus |
Dry methods |
material in bulk | B07B
Individual sorting | B07C
Screening, sifting, pneumatic sorting | B07B
using pneumatic tables or jigs | B03B
by magnetic or electrostatic effect | B03C
by centrifugal force | B07B
using centrifuges or free-vortex apparatus | B04B, B04C
Wet methods |
General operations | B03B
flotation, differential sedimentation | B03D
screening | B07B
Combinations Dry methods - wet methods | B03B

SHAPING

|  | B31 |
MAKING PAPER ARTICLES; WORKING PAPER (making layered products not composed wholly of paper or cardboard Fulltext... Hierarchy... Expanded...B32B; handling thin material, e.g. sheets, webs, Fulltext... Hierarchy... Expanded...B65H)

|  | B31 |
Note(s) This class covers subject matter restricted to adaptations or associations of handling sheets, webs, or blanks peculiar to paper-working, e.g. bag or box making, machinery. This class does not cover: making articles directly from paper pulp, which is covered by Fulltext... Hierarchy... Expanded...D21J; handling sheets, webs, or blanks of wider applicability, irrespective of whether described or claimed only for paper-working machinery, which is regarded as being of a more comprehensive nature and is covered by Fulltext... Hierarchy... Expanded...B65H. In this class, the following term is used with the meaning indicated: "paper" covers material worked in a manner analogous to paper, e.g. plastics sheet materials, laminated materials or metal foils.

|  | B31C |
MAKING WOUND ARTICLES, e.g. WOUND TUBES (characteristics relating to the working of plastics Fulltext... Hierarchy... Expanded...B29; shaping of plastics or substances in a plastic state Fulltext... Hierarchy... Expanded...B29C)

|  | B31C |
Note(s) In this subclass, the following term is used with the meaning indicated: "winding" means forming two or more complete convolutions.

|  | B31C |
Subclass index
MAKING WOUND ARTICLES CHARACTERISED BY THE METHOD USED |
Winding around mandrels | 1/00, 3/00
Winding without mandrels | 5/00
Winding separate webs | 9/00
MAKING WOUND ARTICLES CHARACTERISED BY THE SHAPE OF THE ARTICLES PRODUCED |
Tubes | 1/00, 3/00, 5/00
Cones | 7/00
Other shapes | 9/00, 13/00
AFTER-TREATMENTS, COMBINED MACHINERY | 11/00

P:30 |  | B31C 1/00 |
Forming paper tubes or pipes by feeding at right angles to the winding mandrel centre line

|  | B31C 1/02 |
· | Machines therefor having additional mandrels

|  | B31C 1/04 |
· | and forming a tube end into a container bottom

|  | B31C 1/06 |
· | and inserting into a tube end a bottom to form a container

|  | B31C 1/08 |
· | Accessories of machines therefor not otherwise provided for

P:40 |  | B31C 3/00 |
Forming paper tubes or pipes by feeding obliquely to the winding mandrel centre line

|  | B31C 3/02 |
· | and inserting into a tube end a bottom to form a container

|  | B31C 3/04 |
· | Seam processing

P:50 |  | B31C 5/00 |
Forming paper tubes or pipes without mandrels

P:20 |  | B31C 7/00 |
Forming conical paper articles by winding (winding blanks Fulltext... Hierarchy... Expanded...B31B)

|  | B31C 7/02 |
· | Forming truncated cones

|  | B31C 7/04 |
· · | on two or more mandrels

|  | B31C 7/06 |
· · · | and inserting into a cone end a bottom to form a container

|  | B31C 7/08 |
· | Forming pointed cones

|  | B31C 7/10 |
· · | on two or more mandrels

P:10 |  | B31C 9/00 |
Simultaneous forming of cylindrical and conical shapes by winding separate webs, e.g. forming bottles (winding blanks Fulltext... Hierarchy... Expanded...B31B)

P:0 |  | B31C 11/00 |
Paper-winding machinery combined with other machinery

|  | B31C 11/02 |
· | for additionally shaping the articles

|  | B31C 11/04 |
· | for applying impregnating by coating-substances during the winding

|  | B31C 11/06 |
· | for drying the wound and impregnated articles

P:60 |  | B31C 13/00 |
Making wound articles not otherwise provided for