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IPC 7
B27-B27B03320

SECTION B – PERFORMING OPERATIONS; TRANSPORTING


B 27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL


B 27 BSAWS; 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]


Subclass Index

SAWS CHARACTERISED BY THE ACTIVE ELEMENT 

Reciprocating 

B27B 3/00, B27B 11/00, B27B 19/00 

Circular 

B27B 5/00, B27B 7/00, B27B 9/00 

Band or strap 

B27B 13/00, B27B 15/00 

Chain 

B27B 17/00 

Other kinds 

B27B 23/00 

PORTABLE OR HAND SAWS 

B27B 9/00, B27B 21/00 

ACTIVE ELEMENTS 

B27B 23/00, B27B 33/00 

ACCESSORIES 

B27B 25/00 to B27B 31/00 

SAWING TRUNKS OR LOGS, SAWS SPECIALLY ADAPTED THEREFOR 

B27B 1/00, B27B 3/00, B27B 7/00, B27B 15/00 



1/

00Methods for subdividing trunks or logs essentially involving sawing (features of machines used, see the relevant groups for the machines)


3/

00Gang saw mills; Other sawing machines with reciprocating saw blades, specially designed for length sawing of trunks

3/

02.with vertically-reciprocating saw frame

3/

04..with multiple-blade saw frame

3/

06..with side blade saw frame

3/

08...combined with a multiple-blade saw frame

3/

10..Saw frames or guides therefor

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)

3/

14..Arrangements for raising or lowering the feed rollers

3/

16..Driving mechanisms for the feed rollers

3/

18..Controlling equipment, e.g. for controlling the drive

3/

20..Equipment for guiding the sawn part of timber during machining, e.g. preventing faults due to torsional stress

3/

22.with horizontally-reciprocating saw frame

3/

24..Arrangements for raising and lowering the saw frame

3/

26..Mechanisms for producing the reciprocating movement of the saw frame; Arrangements for damping vibrations; Arrangements for counter-balancing

3/

28.Components

3/

30..Blade attachments, e.g. saw buckles; Stretching devices

3/

32...the stretching devices being equipped with screw-threaded or wedging means

3/

34...the stretching devices being actuated by fluid pressure

3/

36..Devices for adjusting the mutual distance of the saw blades

3/

38...Spacing bars; Spacing plates

3/

40..Devices for adjusting the overhang of the saw


Circular saws


5/

00Sawing machines working with circular saw blades (for length sawing of trunks B27B 7/00); Components or equipment therefor

5/

02.characterised by a special purpose only

5/

04..for edge trimming

5/

06..for dividing plates in parts of determined size, e.g. panels

5/

065...with feedable saw blades, e.g. arranged on a carriage  [6]

5/

07....the plate being positioned in a substantially vertical plane (B27B 5/075 takes precedence)  [6]

5/

075....characterised by having a plurality of saw blades, e.g. turning about perpendicular axes  [6]

5/

08..for sawing with the saw blade abutting parallel against a surface of the workpiece

5/

10.Wheeled circular saws; Circular saws designed to be attached to tractors or other vehicles and driven by same

5/

12.Cylinder saws

5/

14.Rim-driven circular saws

5/

16.Saw benches (B27B 15/06 takes precedence)

5/

18..with feedable circular saw blade, e.g. arranged on a carriage

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

5/

22..with non-feedable circular saw blade

5/

24...the saw blade being adjustable according to depth or angle of cut

5/

26...the table being adjustable according to depth or angle of cut

5/

29.Details; Component parts; Accessories  [2]

5/

30..for mounting or securing saw blades or saw spindles

5/

32...Devices for securing circular saw blades to the saw spindle

5/

34...Devices for securing a plurality of circular saw blades on a single saw spindle; Equipment for adjusting the mutual distance

5/

36...Mounting for swivelling or tilting the circular saw blade

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


7/

00Sawing machines working with circular saw blades, specially designed for length sawing of trunks

7/

02.by making use of circular saws mounted substantially at right angles, e.g. vertically and horizontally

7/

04.by making use of a plurality of circular saws mounted on a single spindle; Arrangements for adjusting the mutual distances


9/

00Portable 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]

9/

02.Arrangements for adjusting the cutting depth or the amount of tilting

9/

04.Guiding equipment, e.g. for cutting panels


11/

00Cross-cut reciprocating saws with power drive; Appurtenances therefor

11/

02.Arrangements for guiding the saw blade

11/

04..Supports able to be attached to the work

11/

06.Arrangements for chucking the saw blade, with or without releasable transmission mechanisms for uncoupling the drive

11/

08.Frames, pillars, or beds

11/

10.Devices for clamping the work or holding same in position

11/

12.Saw assemblies designed to be mounted on or driven by tractors


Band or strap sawing machines


13/

00Band or strap sawing machines (for length cutting of trunks B27B 15/00); Components or equipment therefor

13/

02.Frames, Pillars

13/

04.Work-tables; Arrangements for tilting the band saw blade

13/

06.Saw pulleys; Bearings therefor

13/

08.Arrangements for stretching the band saw blade

13/

10.Guiding equipment for the band saw blade, e.g. guide rollers, back guides, side guides

13/

12.Lubricating devices specially designed for band saw blades

13/

14.Braking devices specially designed for band sawing machines, e.g. acting after damage of the band saw blade

13/

16.Accessories, e.g. for cooling the saw blade


15/

00Band or strap sawing machines specially designed for length cutting of trunks

15/

02.with horizontally-guided saw blade, i.e. horizontal log band saw

15/

04.with vertically-guided saw blade

15/

06.in combined arrangement with circular saws for performing simultaneously several sawing procedures

15/

08.with a plurality of band saw blades



17/

00Chain saws; Equipment therefor

17/

02.Chain saws equipped with guide bar (B27B 17/06 takes precedence)

17/

04..Roller bearing guides

17/

06.Chain saws mounted on a bow

17/

08.Drives or gearings; Devices for swivelling or tilting the chain saw

17/

10..Transmission clutches specially designed for chain saws

17/

12.Lubricating devices specially designed for chain saws

17/

14.Arrangements for stretching the chain saw


19/

00Other 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]

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)

19/

04..characterised by power drive, e.g. by electromagnetic drive

19/

06..Stationary machines

19/

09..portable  [2]

19/

10.Fret-saws, i.e. with bilaterally-chucked saw blade in a manually-guided bow

19/

12..with power drive

19/

14..with hand drive


21/

00Hand saws without power drive (B27B 19/14 takes precedence); Equipment for hand sawing, e.g. saw horses

21/

02.Buck or hack saws

21/

04.Cross-cut saws; Pad saws

21/

06.Arrangements for stretching the saw blade

21/

08.Arrangements of gauging or adjusting equipment on hand saws, e.g. for limiting the cutting depth


23/

00Other cutting of wood by non-rotary toothed tools; Tools therefor (cutting with hot wire B27M 1/06)


Components or accessories for saws


25/

00Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees (B27B 31/00 takes precedence) [5]

25/

02.with feed and pressure rollers

25/

04.with feed chains or belts

25/

06.Resilient feeding or pressing accessories, e.g. pads, springs

25/

08.Feeding devices able to be attached to any sawing machine

25/

10.Manually-operated feeding or pressing accessories, e.g. pushers


27/

00Guide 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)

27/

02.arranged laterally and parallel with respect to the plane of the saw blade

27/

04.arranged perpendicularly to the plane of the saw blade

27/

06.arranged angularly with respect to the plane of the saw blade, e.g. for mitring

27/

08.arranged adjustably, not limited to only one of the groups B27B 27/02 to B27B 27/06

27/

10.Devices for moving or adjusting the guide fences or stops


29/

00Gripping, 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

29/

02.Clamping angles; Gripping equipment thereon

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

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

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

29/

10..Assemblies for laterally adjusting or controlling the clamping or turning devices with respect to the thickness of the board to be sawn


31/

00Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines (B27B 29/00 takes precedence)

31/

02.Loading equipment for travelling carriages

31/

04.Turning equipment

31/

06.Adjusting equipment, e.g. using optical projection

31/

08.Discharging equipment


33/

00Sawing tools for saw mills, sawing machines, or sawing devices

33/

02.Structural design of saw blades or saw teeth

33/

04..Gang saw blades

33/

06..Band saw blades

33/

08..Circular saw blades

33/

10..Hand saw blades

33/

12..Saw blades having inserted or exchangeably arranged bits or toothed segments

33/

14.Saw chains

33/

16.Saw wires; Twisted saw strips

33/

18.Saw cylinders having a toothed front rim

33/

20.Edge trimming saw blades or tools combined with means to disintegrate waste  [2]


  
 

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