IPC 6 English version B27B-B27B 33/20

B27-B27B03320

SECTION B– PERFORMING OPERATIONS; TRANSPORTING

B 27

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

B 27 B

SAWS; COMPONENTS OR ACCESSORIES THEREFOR (saws specially adapted for pruning or debranching A 01 G 3/08; sawing apparatus specially adapted for felling trees A 01 G 23/091; features not restricted to a particular type of wood saw B 23 D, e.g. attaching saw blades B 23 D 51/00; machine tool frames, beds, pillars or like members, in general B 23 Q 1/01) [5]

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

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

with vertically-reciprocating saw frame

with multiple-blade saw frame

with side blade saw frame

combined with a multiple-blade saw frame

Saw frames or guides therefor

Mechanisms for producing the reciprocating movement of the saw frame; Arrangements for damping vibration; Arrangements for counter-balancing (B 27 B 3/26 takes precedence)

Arrangements for raising or lowering the feed rollers

Driving mechanisms for the feed rollers

Controlling equipment, e.g. for controlling the drive

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

with horizontally-reciprocating saw frame

Arrangements for raising and lowering the saw frame

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

Components

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

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

the stretching devices being actuated by fluid pressure

Devices for adjusting the mutual distance of the saw blades

Spacing bars; Spacing plates

Devices for adjusting the overhang of the saw

Circular saws

Sawing machines working with circular saw blades (for length sawing of trunks B 27 B 7/00); Components or equipment therefor

characterised by a special purpose only

for edge trimming

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

065

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

the plate being positioned in a substantially vertical plane (B 27 B 5/075 takes precedence) [6]

075

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

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

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

Cylinder saws

Rim-driven circular saws

Saw benches (B 27 B 15/06 takes precedence)

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

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

with non-feedable circular saw blade

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

the table being adjustable according to depth or angle of cut

Details; Component parts; Accessories [2]

for mounting or securing saw blades or saw spindles

Devices for securing circular saw blades to the saw spindle

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

Mounting for swivelling or tilting the circular saw blade

Devices for braking the circular saw blade or the saw spindle; Devices for damping vibrations of the circular saw blade, e.g. silencing

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

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

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

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 B 25 F 5/00) [4]

Arrangements for adjusting the cutting depth or the amount of tilting

Guiding equipment, e.g. for cutting panels

11/

Cross-cut reciprocating saws with power drive; Appurtenances therefor

11/

Arrangements for guiding the saw blade

11/

Supports able to be attached to the work

11/

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

11/

Frames, pillars, or beds

11/

Devices for clamping the work or holding same in position

11/

Saw assemblies designed to be mounted on or driven by tractors

Band or strap sawing machines

13/

Band or strap sawing machines (for length cutting of trunks B 27 B 15/00); Components or equipment therefor

13/

Frames, Pillars

13/

Work-tables; Arrangements for tilting the band saw blade

13/

Saw pulleys; Bearings therefor

13/

Arrangements for stretching the band saw blade

13/

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

13/

Lubricating devices specially designed for band saw blades

13/

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

13/

Accessories, e.g. for cooling the saw blade

15/

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

15/

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

15/

with vertically-guided saw blade

15/

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

15/

with a plurality of band saw blades

17/

Chain saws; Equipment therefor

17/

Chain saws equipped with guide bar (B 27 B 17/06 takes precedence)

17/

Roller bearing guides

17/

Chain saws mounted on a bow

17/

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

17/

Transmission clutches specially designed for chain saws

17/

Lubricating devices specially designed for chain saws

17/

Arrangements for stretching the chain saw

19/

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 B 25 F 5/00) [4]

19/

Saws with a power-driven blade chucked at both ends or at one end only, e.g. jig saws, scroll saws (B 27 B 19/10 takes precedence)

19/

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

19/

Stationary machines

19/

portable [2]

19/

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

19/

with power drive

19/

with hand drive

21/

Hand saws without power drive (B 27 B 19/14 takes precedence); Equipment for hand sawing, e.g. saw horses

21/

Buck or hack saws

21/

Cross-cut saws; Pad saws

21/

Arrangements for stretching the saw blade

21/

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

23/

Other cutting of wood by non-rotary toothed tools; Tools therefor (cutting with hot wire B 27 M 1/06)

Components or accessories for saws

25/

Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees (B 27 B 31/00 takes precedence) [5]

25/

with feed and pressure rollers

25/

with feed chains or belts

25/

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

25/

Feeding devices able to be attached to any sawing machine

25/

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

27/

Guide fences or stops for timber in saw mills or sawing machines; Measuring equipment thereon (safety guards or devices specially designed for wood saws B 27 G 19/00; constructional features of measuring devices G 01 B)

27/

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

27/

arranged perpendicularly to the plane of the saw blade

27/

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

27/

arranged adjustably, not limited to only one of the groups B 27 B 27/02 to B 27 B 27/06

27/

Devices for moving or adjusting the guide fences or stops

29/

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 B 27 G 19/00; for other timber, see the relevant groups for the machines); Travelling trunk or log carriages

29/

Clamping angles; Gripping equipment thereon

29/

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/

Auxiliary trunk or log carriages for carrying initially the log to the feed rollers or for carrying the sawn part of the log

29/

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/

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

31/

Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines (B 27 B 29/00 takes precedence)

31/

Loading equipment for travelling carriages

31/

Turning equipment

31/

Adjusting equipment, e.g. using optical projection

31/

Discharging equipment

33/

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

33/

Structural design of saw blades or saw teeth

33/

Gang saw blades

33/

Band saw blades

33/

Circular saw blades

33/

Hand saw blades

33/

Saw blades having inserted or exchangeably arranged bits or toothed segments

33/

Saw chains

33/

Saw wires; Twisted saw strips

33/

Saw cylinders having a toothed front rim

33/

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