Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
7
/
02
•
Wheels in one piece
7
/
04
•
•
with reinforcing means
7
/
06
•
with inserted abrasive blocks, e.g. segmental (zonally-graded B 24 D 7/14)
7
/
08
•
•
with reinforcing means
7
/
10
•
with cooling provisions
7
/
12
•
with apertures for inspecting the surface to be abraded
7
/
14
•
Zonally-graded wheels; Composite wheels comprising different abrasives
7
/
16
•
Bushings; Mountings
7
/
18
•
Wheels of special form (if specially designed for a particular purpose provided for in a single other class, that class takes precedence)
9
/
00
Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper (wheels or drums as machine elements
F 16)
9
/
02
•
Expansible drums for carrying flexible material in tubular form, e.g. expanded by centrifugal force
9
/
04
•
Rigid drums for carrying flexible material
9
/
06
•
•
able to be stripped-off from a built-in delivery spool
9
/
08
•
Circular back-plates for carrying flexible material
9
/
10
•
•
with suction means for securing the material
11
/
00
Constructional features of flexible abrasive materials; Special features in the manufacture of such materials
11
/
02
•
Backings, e.g. foils, webs, mesh fabrics
11
/
04
•
Zonally-graded surfaces
11
/
06
•
Connecting the ends of materials, e.g. for making abrasive belts
11
/
08
•
Equipment for after-treatment of the coated backings, e.g. for flexing the coating
13
/
00
Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
13
/
02
•
acting by their periphery
13
/
04
•
•
comprising a plurality of flaps or strips arranged around the axis
13
/
06
•
•
the flaps or strips being individually attached
13
/
08
•
•
comprising annular or circular sheets packed side by side
13
/
10
•
•
comprising assemblies of brushes
13
/
12
•
•
comprising assemblies of felted or spongy material, e.g. felt, steel wool, foamed latex
13
/
14
•
acting by the front face
13
/
16
•
•
comprising pleated flaps or strips
13
/
18
•
with cooling provisions
13
/
20
•
Mountings for the wheels
15
/
00
Hand tools or other devices for non-rotary grinding, polishing, or stropping
15
/
02
•
rigid; with rigidly-supported operative surface
15
/
04
•
resilient; with resiliently-mounted operative surface
15
/
06
•
specially designed for sharpening cutting edges
15
/
08
•
•
of knives; of razors
15
/
10
•
•
of safety-razor blades (devices with mechanically-operated parts B 24 B 3/50)
17
/
00
Abrasive or polishing tools not covered by any preceding group in this subclass
18
/
00
Manufacture of grinding tools, e.g. wheels, not otherwise provided for [4]
