|  | 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

|  | B27 |
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL

|  | B27L |
REMOVING BARK OR VESTIGES OF BRANCHES (forestry Fulltext... Hierarchy... Expanded...A01G); SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER

P:10 |  | B27L 1/00 |
Debarking or removing vestiges of branches from trees or logs (debarking by chemical treatment Fulltext... Hierarchy... Expanded...B27L 3/00); Machines therefor [2]

|  | B27L 1/00 |
Note(s) Tree-feeding devices are covered by group Fulltext... Hierarchy... Expanded...B27B 25/00. [5]

|  | B27L 1/02 |
· | by rubbing the trunks against each other (Fulltext... Hierarchy... Expanded...B27L 1/04 takes precedence); Equipment for wet practice [5]

|  | B27L 1/04 |
· | by rubbing the trunks in rotating drums [5]

|  | B27L 1/05 |
· · | Drums therefor [5]

|  | B27L 1/06 |
· | Manually-operated or portable devices for debarking or for removing vestiges of branches

|  | B27L 1/08 |
· | using rotating rings [5]

|  | B27L 1/10 |
· | using rotatable tools (Fulltext... Hierarchy... Expanded...B27L 1/04, Fulltext... Hierarchy... Expanded...B27L 1/08, Fulltext... Hierarchy... Expanded...B27L 1/12 take precedence) [5]

|  | B27L 1/12 |
· | using pliable tools [5]

|  | B27L 1/14 |
· | using jets of fluid [5]

P:0 |  | B27L 3/00 |
Debarking by chemical treatment

P:30 |  | B27L 5/00 |
Manufacture of veneer (working veneer or plywood Fulltext... Hierarchy... Expanded...B27D)

|  | B27L 5/02 |
· | Cutting strips from a rotating trunk or piece; Veneer lathes

|  | B27L 5/04 |
· · | the trunk being rotated about an axis lying outside it

|  | B27L 5/06 |
· | Cutting strips from a stationarily-held trunk or piece by a rocking knife carrier, or from rocking trunk or piece by a stationarily-held knife carrier; Veneer-cutting machines

|  | B27L 5/08 |
· | Severing sheets or segments from veneer strips; Shearing devices therefor; Making veneer blanks, e.g. trimming to size

P:20 |  | B27L 7/00 |
Arrangements for splitting wood [6]

|  | B27L 7/02 |
· | using rotating members [6]

|  | B27L 7/04 |
· · | Conical screws [6]

|  | B27L 7/06 |
· | using wedges, knives or spreaders (Fulltext... Hierarchy... Expanded...B27L 7/02 takes precedence) [6]

|  | B27L 7/08 |
· | using chopping blocks [6]

P:40 |  | B27L 9/00 |
Manufacture of wooden sticks, e.g. toothpicks (of walking sticks, of sticks for umbrellas Fulltext... Hierarchy... Expanded...B27M 3/38; combined with other operations in the manufacture of matches Fulltext... Hierarchy... Expanded...C06F)

P:50 |  | B27L 11/00 |
Manufacture of wood shavings, chips, powder, or the like (disintegrating in general Fulltext... Hierarchy... Expanded...B02C; edge trimming sawing blades or sawing tools combined with means to disintegrate waste Fulltext... Hierarchy... Expanded...B27B 33/20; obtaining fibres for spinning Fulltext... Hierarchy... Expanded...D01B 1/00; wet methods Fulltext... Hierarchy... Expanded...D21B 1/12); Tools therefor [2]

|  | B27L 11/02 |
· | of wood shavings or the like

|  | B27L 11/04 |
· · | of wood wool

|  | B27L 11/06 |
· | of wood powder or sawdust (grinding-stones Fulltext... Hierarchy... Expanded...B24D)

|  | B27L 11/08 |
· | of wood fibres, e.g. produced by tearing