B
SECTION B — PERFORMING OPERATIONS; TRANSPORTING
 B01 - 
B07
Subsection index
LIQUID/LIQUID, LIQUID/GAS OR GAS/GAS SEPARATION
Method
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal force, using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/LIQUID OR SOLID/GAS SEPARATION
Method
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB01D
using magnetic or electrostatic effectB03C
Apparatus
General operationsB01D
by centrifugal forceB01D
using centrifuges or free-vortex apparatusB04B, B04C
using magnetic or electrostatic effectB03C
SOLID/SOLID SEPARATION
Method
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB07B
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
Apparatus
Dry methods
material in bulkB07B
Individual sortingB07C
Screening, sifting, pneumatic sortingB07B
using pneumatic tables or jigsB03B
by magnetic or electrostatic effectB03C
by centrifugal forceB07B
using centrifuges or free-vortex apparatusB04B, B04C
Wet methods
General operationsB03B
flotation, differential sedimentationB03D
screeningB07B
Combinations Dry methods - wet methodsB03B
  
SHAPING
 B27
WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
 B27B
SAWS; COMPONENTS OR ACCESSORIES THEREFOR (saws specially adapted for pruning or debranching A01G 3/08; sawing apparatus specially adapted for felling trees A01G 23/091; features not restricted to a particular type of wood saw B23D, e.g. attaching saw blades B23D 51/00; machine tool frames, beds, pillars or like members, in general B23Q 1/01)  [5]
 B27B
Subclass index
SAWS CHARACTERISED BY THE ACTIVE ELEMENT
Reciprocating 3/00, 11/00, 19/00
Circular 5/00, 7/00, 9/00
Band or strap 13/00, 15/00
Chain 17/00
Other kinds 23/00
PORTABLE OR HAND SAWS 9/00, 21/00
ACTIVE ELEMENTS 23/00, 33/00
ACCESSORIES 25/00 - 31/00
SAWING TRUNKS OR LOGS, SAWS SPECIALLY ADAPTED THEREFOR 1/00, 3/00, 7/00, 15/00

 B27C
PLANING, DRILLING, MILLING, TURNING, OR UNIVERSAL MACHINES (machine tools in general B23; working wood using abrasive, e.g. sanding, devices B24; tools for these purposes B27G)

 B27D
WORKING VENEER OR PLYWOOD (applying liquids or other fluent materials to surfaces in general B05; grinding, sanding, or polishing of wood B24; applying adhesives or glue to surfaces of wood B27G 11/00; manufacture of veneer B27L 5/00)
 B27D

Note(s)

The layered products classified in this subclass are also classified in B32B.  [3]


 B27F
DOVETAILED WORK; TENONS; SLOTTING MACHINES; NAILING OR STAPLING MACHINES (hand-held nailing or stapling tools B25C; manufacture of cases, trunks or boxes from wood B27M 3/34; connections for building structures in general, e.g. dowels for use in building constructions E04B 1/38; jointing elements in general, e.g. dowels in general, F16B)
 B27F

Note(s)

  1. This subclass covers also the assembling of the elements to be jointed, e.g. using adhesives.
  2. This subclass does not cover the application of adhesives or glue to surfaces of wood to be jointed, which is covered by group B27G 11/00.

 B27G
ACCESSORY MACHINES OR APPARATUS; TOOLS; SAFETY DEVICES, e.g. FOR SAWS (clamping devices for mitre joints, presses for producing frames, press frames, or cages equipped with clamping devices B25B; woodworkers' benches B25H)
 B27G
Subclass index
DEVICES OR MACHINES FOR REMOVING KNOTS OR OTHER UNUSABLE PARTS 1/00, 3/00
DEVICES OR MACHINES FOR WORKING MITRE JOINTS OR FOR GLUING 5/00, 11/00
TOOLS 13/00, 15/00, 17/00
DEVICES FOR SAFETY OR PROPER OPERATION 19/00, 21/00, 23/00

 B27H
BENDING; COOPERAGE; WHEEL-MAKING

 B27J
MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
 B27J

Note(s)

In this subclass, the following expression is used with the meaning indicated:

  • "working of cane" embraces the working of other materials, e.g. of strips of wood or plastics, in the same manner.


 B27K
PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR (applying liquids or other fluent materials to surfaces in general B05; coating wood or similar material B44D); CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS  [2]

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

 B27M
WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B-B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES

 B27N
MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL (containing cementitious material B28B; shaping of substances in a plastic state B29C; fibreboards made from fibrous suspensions D21J; drying F26B 17/00)  [4]
 B27N

Note(s)

This subclass does not cover treatment of compositions which are in a plastic state, or worked by the same type of process or apparatus as plastics, which is covered by subclass B29B or B29C.  [4]