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
 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
 B27G 1/00 - 
B27G 11/00
Accessory machines or apparatus
P:20 B27G 1/00
Machines or devices for removing knots or other irregularities or for filling-up holes
P:30 B27G 3/00
Arrangements for removing bark-zones, chips, waste, or dust, specially designed for use in connection with wood-working machine or in wood-working plants
P:40 B27G 5/00
Machines or devices for working mitre joints with even abutting ends (with tenon or like connections B27F)
P:50 B27G 11/00
Applying adhesives or glue to surfaces of wood to be joined (applying liquids, e.g. liquid adhesives, to surfaces in general B05C, B05D; adhesive processes C09J 5/00; associated with particular wood-working, see the relevant subclasses)  [2]
 B27G 13/00 - 
B27G 17/00
Tools (sawing tools B27B 33/00; tools for slotting or mortising machines B27F 5/00; tools for the manufacture of wood shavings, chips, powder, or the like B27L 11/00)  [2]
P:80 B27G 13/00
Cutter blocks; Other rotary cutting tools (B27G 15/00, B27G 17/00 take precedence)
P:60 B27G 15/00
Boring or turning tools; Augers
P:70 B27G 17/00
Manually-operated tools
 B27G 19/00 - 
B27G 21/00
Safety guards or devices
P:0 B27G 19/00
Safety guards or devices specially designed for wood saws (in general F16P); Auxiliary devices facilitating proper operation of wood saws
P:10 B27G 21/00
Safety guards or devices specially designed for other wood-working machines
   
P:90 B27G 23/00
Gauging means specially designed for adjusting of tools or guides, e.g. adjusting cutting blades in cutter blocks (for guides of sawing machines B27B 27/00)