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
P:0 B27B 1/00
Methods for subdividing trunks or logs essentially involving sawing (features of machines used, see the relevant groups for the machines)
P:10 B27B 3/00
Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks
 B27B 3/02
·  with vertically-reciprocating saw frame
 B27B 3/04
·  ·  with multiple-blade saw frame
 B27B 3/06
·  ·  with side blade saw frame
 B27B 3/08
·  ·  ·  combined with a multiple-blade saw frame
 B27B 3/10
·  ·  Saw frames or guides therefor
 B27B 3/12
·  ·  Mechanisms for producing the reciprocating movement of the saw frame; Arrangements for damping vibration; Arrangements for counter-balancing (B27B 3/26 takes precedence)
 B27B 3/14
·  ·  Arrangements for raising or lowering the feed rollers
 B27B 3/16
·  ·  Driving mechanisms for the feed rollers
 B27B 3/18
·  ·  Controlling equipment, e.g. for controlling the drive
 B27B 3/20
·  ·  Equipment for guiding the sawn part of timber during machining, e.g. preventing faults due to torsional stress
 B27B 3/22
·  with horizontally-reciprocating saw frame
 B27B 3/24
·  ·  Arrangements for raising and lowering the saw frame
 B27B 3/26
·  ·  Mechanisms for producing the reciprocating movement of the saw frame; Arrangements for damping vibrations; Arrangements for counter-balancing
 B27B 3/28
·  Components
 B27B 3/30
·  ·  Blade attachments, e.g. saw buckles; Stretching devices
 B27B 3/32
·  ·  ·  the stretching devices being equipped with screw-threaded or wedging means
 B27B 3/34
·  ·  ·  the stretching devices being actuated by fluid pressure
 B27B 3/36
·  ·  Devices for adjusting the mutual distance of the saw blades
 B27B 3/38
·  ·  ·  Spacing bars; Spacing plates
 B27B 3/40
·  ·  Devices for adjusting the overhang of the saw
 B27B 5/00 - 
B27B 9/00
Circular saws
P:80 B27B 5/00
Sawing machines working with circular saw blades (for length sawing of trunks B27B 7/00); Components or equipment therefor
 B27B 5/02
·  characterised by a special purpose only
 B27B 5/04
·  ·  for edge trimming
 B27B 5/06
·  ·  for dividing plates in parts of determined size, e.g. panels
 B27B 5/065
·  ·  ·  with feedable saw blades, e.g. arranged on a carriage  [6]
 B27B 5/07
·  ·  ·  ·  the plate being positioned in a substantially vertical plane (B27B 5/075 takes precedence)  [6]
 B27B 5/075
·  ·  ·  ·  characterised by having a plurality of saw blades, e.g. turning about perpendicular axes  [6]
 B27B 5/08
·  ·  for sawing with the saw blade abutting parallel against a surface of the workpiece
 B27B 5/10
·  Wheeled circular saws; Circular saws designed to be attached to tractors or other vehicles and driven by same
 B27B 5/12
·  Cylinder saws
 B27B 5/14
·  Rim-driven circular saws
 B27B 5/16
·  Saw benches (B27B 15/06 takes precedence)
 B27B 5/18
·  ·  with feedable circular saw blade, e.g. arranged on a carriage
 B27B 5/20
·  ·  ·  the saw blade being adjustable according to depth or angle of cut; Radial saws, i.e. sawing machines with a pivoted radial arm for guiding the movable carriage
 B27B 5/22
·  ·  with non-feedable circular saw blade
 B27B 5/24
·  ·  ·  the saw blade being adjustable according to depth or angle of cut
 B27B 5/26
·  ·  ·  the table being adjustable according to depth or angle of cut
 B27B 5/29
·  Details; Component parts; Accessories  [2]
 B27B 5/30
·  ·  for mounting or securing saw blades or saw spindles
 B27B 5/32
·  ·  ·  Devices for securing circular saw blades to the saw spindle
 B27B 5/34
·  ·  ·  Devices for securing a plurality of circular saw blades on a single saw spindle; Equipment for adjusting the mutual distance
 B27B 5/36
·  ·  ·  Mounting for swivelling or tilting the circular saw blade
 B27B 5/38
·  ·  Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing
P:70 B27B 7/00
Sawing machines working with circular saw blades, specially designed for length sawing of trunks
 B27B 7/02
·  by making use of circular saws mounted substantially at right angles, e.g. vertically and horizontally
 B27B 7/04
·  by making use of a plurality of circular saws mounted on a single spindle; Arrangements for adjusting the mutual distances
P:90 B27B 9/00
Portable power-driven circular saws for manual operation (details or components, e.g. handles, casings, of portable power-driven tools not particularly related to the operation performed B25F 5/00)  [4]
 B27B 9/02
·  Arrangements for adjusting the cutting depth or the amount of tilting
 B27B 9/04
·  Guiding equipment, e.g. for cutting panels
P:20 B27B 11/00
Cross-cut reciprocating saws with power drive; Appurtenances therefor
 B27B 11/02
·  Arrangements for guiding the saw blade
 B27B 11/04
·  ·  Supports able to be attached to the work
 B27B 11/06
·  Arrangements for chucking the saw blade, with or without releasable transmission mechanisms for uncoupling the drive
 B27B 11/08
·  Frames, pillars, or beds
 B27B 11/10
·  Devices for clamping the work or holding same in position
 B27B 11/12
·  Saw assemblies designed to be mounted on or driven by tractors
 B27B 13/00 - 
B27B 15/00
Band or strap sawing machines
P:60 B27B 13/00
Band or strap sawing machines (for length cutting of trunks B27B 15/00); Components or equipment therefor
 B27B 13/02
·  Frames, Pillars
 B27B 13/04
·  Work-tables; Arrangements for tilting the band saw blade
 B27B 13/06
·  Saw pulleys; Bearings therefor
 B27B 13/08
·  Arrangements for stretching the band saw blade
 B27B 13/10
·  Guiding equipment for the band saw blade, e.g. guide rollers, back guides, side guides
 B27B 13/12
·  Lubricating devices specially designed for band saw blades
 B27B 13/14
·  Braking devices specially designed for band sawing machines, e.g. acting after damage of the band saw blade
 B27B 13/16
·  Accessories, e.g. for cooling the saw blade
P:50 B27B 15/00
Band or strap sawing machines specially designed for length cutting of trunks
 B27B 15/02
·  with horizontally-guided saw blade, i.e. horizontal log band saw
 B27B 15/04
·  with vertically-guided saw blade
 B27B 15/06
·  in combined arrangement with circular saws for performing simultaneously several sawing procedures
 B27B 15/08
·  with a plurality of band saw blades
P:40 B27B 17/00
Chain saws; Equipment therefor
 B27B 17/02
·  Chain saws equipped with guide bar (B27B 17/06 takes precedence)
 B27B 17/04
·  ·  Roller bearing guides
 B27B 17/06
·  Chain saws mounted on a bow
 B27B 17/08
·  Drives or gearings; Devices for swivelling or tilting the chain saw
 B27B 17/10
·  ·  Transmission clutches specially designed for chain saws
 B27B 17/12
·  Lubricating devices specially designed for chain saws
 B27B 17/14
·  Arrangements for stretching the chain saw
P:30 B27B 19/00
Other reciprocating saws with power drive; Fret-saws (details or components, e.g. casings, bodies, of portable power-driven tools not particularly related to the operation performed B25F 5/00)  [4]
 B27B 19/02
·  Saws with a power-driven blade chucked at both ends or at one end only, e.g. jig saws, scroll saws (B27B 19/10 takes precedence)
 B27B 19/04
·  ·  characterised by power drive, e.g. by electromagnetic drive
 B27B 19/06
·  ·  Stationary machines
 B27B 19/09
·  ·  portable  [2]
 B27B 19/10
·  Fret-saws, i.e. with bilaterally-chucked saw blade in a manually-guided bow
 B27B 19/12
·  ·  with power drive
 B27B 19/14
·  ·  with hand drive
P:100 B27B 21/00
Hand saws without power drive (B27B 19/14 takes precedence); Equipment for hand sawing, e.g. saw horses
 B27B 21/02
·  Buck or hack saws
 B27B 21/04
·  Cross-cut saws; Pad saws
 B27B 21/06
·  Arrangements for stretching the saw blade
 B27B 21/08
·  Arrangements of gauging or adjusting equipment on hand saws, e.g. for limiting the cutting depth
P:110 B27B 23/00
Other cutting of wood by non-rotary toothed tools; Tools therefor (cutting with hot wire B27M 1/06)
 B27B 25/00 - 
B27B 33/00
Components or accessories for saws
P:150 B27B 25/00
Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees (B27B 31/00 takes precedence)  [5]
 B27B 25/02
·  with feed and pressure rollers
 B27B 25/04
·  with feed chains or belts
 B27B 25/06
·  Resilient feeding or pressing accessories, e.g. pads, springs
 B27B 25/08
·  Feeding devices able to be attached to any sawing machine
 B27B 25/10
·  Manually-operated feeding or pressing accessories, e.g. pushers
P:160 B27B 27/00
Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon (safety guards or devices specially designed for wood saws B27G 19/00; constructional features of measuring devices G01B)
 B27B 27/02
·  arranged laterally and parallel with respect to the plane of the saw blade
 B27B 27/04
·  arranged perpendicularly to the plane of the saw blade
 B27B 27/06
·  arranged angularly with respect to the plane of the saw blade, e.g. for mitring
 B27B 27/08
·  arranged adjustably, not limited to only one of the groups B27B 27/02-B27B 27/06
 B27B 27/10
·  Devices for moving or adjusting the guide fences or stops
P:130 B27B 29/00
Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines (safety guards or devices specially designed for wood saws B27G 19/00; for other timber, see the relevant groups for the machines); Travelling trunk or log carriages
 B27B 29/02
·  Clamping angles; Gripping equipment thereon
 B27B 29/04
·  Trunk or log carriages with gripping means which do not pass the saw blade(s), especially for gang saws; Arrangement of gripping accessories thereon
 B27B 29/06
·  ·  Auxiliary trunk or log carriages for carrying initially the log to the feed rollers or for carrying the sawn part of the log
 B27B 29/08
·  Trunk or log carriages with gripping means designed to pass the saw blade(s), especially for band saws; Arrangement of gripping accessories thereon; Turning devices thereon
 B27B 29/10
·  ·  Assemblies for laterally adjusting or controlling the clamping or turning devices with respect to the thickness of the board to be sawn
P:140 B27B 31/00
Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines (B27B 29/00 takes precedence)
 B27B 31/02
·  Loading equipment for travelling carriages
 B27B 31/04
·  Turning equipment
 B27B 31/06
·  Adjusting equipment, e.g. using optical projection
 B27B 31/08
·  Discharging equipment
P:120 B27B 33/00
Sawing tools for saw mills, sawing machines, or sawing devices
 B27B 33/02
·  Structural design of saw blades or saw teeth
 B27B 33/04
·  ·  Gang saw blades
 B27B 33/06
·  ·  Band saw blades
 B27B 33/08
·  ·  Circular saw blades
 B27B 33/10
·  ·  Hand saw blades
 B27B 33/12
·  ·  Saw blades having inserted or exchangeably arranged bits or toothed segments
 B27B 33/14
·  Saw chains
 B27B 33/16
·  Saw wires; Twisted saw strips
 B27B 33/18
·  Saw cylinders having a toothed front rim
 B27B 33/20
·  Edge trimming saw blades or tools combined with means to disintegrate waste  [2]