|  | 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

|  | B27M |
WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B27B-B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES

P:10 |  | B27M 1/00 |
Working of wood not provided for in subclasses Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...B27B-B27L, e.g. by stretching [2]

|  | B27M 1/02 |
· | by compressing

|  | B27M 1/04 |
· | by punching out

|  | B27M 1/06 |
· | by burning or charring, e.g. cutting with hot wire (as surface treatment Fulltext... Hierarchy... Expanded...B44B)

|  | B27M 1/08 |
· | by multi-step processes [2]

P:0 |  | B27M 3/00 |
Manufacture or reconditioning of specific semi-finished or finished articles (features of copying devices Fulltext... Hierarchy... Expanded...B23Q; manufacture of plywood or veneer, shaping plywood or veneer into articles Fulltext... Hierarchy... Expanded...B27D; of central layers for plywood Fulltext... Hierarchy... Expanded...B27D 1/06; nailing or stapling machines in general Fulltext... Hierarchy... Expanded...B27F 7/00; of elements for cooperage or wheel-making Fulltext... Hierarchy... Expanded...B27H)

|  | B27M 3/02 |
· | of roofing elements, e.g. shingles

|  | B27M 3/04 |
· | of flooring elements, e.g. parqueting blocks (assembling wooden elements on backings of other substances Fulltext... Hierarchy... Expanded...B32B, e.g. Fulltext... Hierarchy... Expanded...B32B 37/00)

|  | B27M 3/06 |
· · | of composite floor plates by assembling or jointing the parqueting blocks

|  | B27M 3/08 |
· | of specially-shaped wood laths or strips

|  | B27M 3/10 |
· | of airscrew blades

|  | B27M 3/12 |
· | of railings, stairs, stair stringers, ladders, or parts thereof

|  | B27M 3/14 |
· | of railroad sleepers

|  | B27M 3/16 |
· | of tool handles or tools, e.g. mallets

|  | B27M 3/18 |
· | of furniture

|  | B27M 3/20 |
· | of lasts; of shoes, e.g. sabots; of parts of shoes, e.g. heels

|  | B27M 3/22 |
· | of sport articles, e.g. bowling pins, frames of tennis rackets, skis, paddles

|  | B27M 3/24 |
· | of household utensils, e.g. spoons, clothes hangers, clothes pegs

|  | B27M 3/26 |
· | of smokers utensils, e.g. pipes

|  | B27M 3/28 |
· | of dowels or bolts

|  | B27M 3/30 |
· | of bobbins

|  | B27M 3/32 |
· | of tapered poles, e.g. mine props

|  | B27M 3/34 |
· | of cases, trunks, or boxes, of wood or equivalent material which cannot satisfactorily be bent without softening (nailing or stapling in general Fulltext... Hierarchy... Expanded...B25C, Fulltext... Hierarchy... Expanded...B27F; of cardboard, paper, or similarly workable material Fulltext... Hierarchy... Expanded...B31B)

|  | B27M 3/36 |
· · | Machines or devices for attaching blanks together, e.g. for making wire-bound boxes

|  | B27M 3/38 |
· | of walking sticks or of sticks for umbrellas