|  | 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

|  | B27B |
SAWS; COMPONENTS OR ACCESSORIES THEREFOR (saws specially adapted for pruning or debranching Fulltext... Hierarchy... Expanded...A01G 3/08; sawing apparatus specially adapted for felling trees Fulltext... Hierarchy... Expanded...A01G 23/091; features not restricted to a particular type of wood saw Fulltext... Hierarchy... Expanded...B23D, e.g. attaching saw blades Fulltext... Hierarchy... Expanded...B23D 51/00; machine tool frames, beds, pillars or like members, in general Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 11/00 |
Circular saws

P:80 |  | B27B 5/00 |
Sawing machines working with circular saw blades (for length sawing of trunks Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...B27G 19/00; constructional features of measuring devices Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...Fulltext... Hierarchy... Expanded...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 Fulltext... Hierarchy... Expanded...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 (Fulltext... Hierarchy... Expanded...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]