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
  
PRINTING
 B41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS (reproduction or duplication of pictures or patterns by scanning and converting into electrical signals H04N)  [4]
 B41F
PRINTING MACHINES OR PRESSES (machines for manufacturing footwear incorporating printing or embossing apparatus A43D, e.g. A43D 8/00, A43D 95/00; presses in general B30B; making of printing surfaces B41C, B41D; manifolding devices, office printing machines B41L; stencilling B41L; printing processes not dependent on the use of special machines B41M; duplicating or marking by sublimation or volatilisation of design B41M 5/035; thermography B41M 5/26; embossing decorations or marks B44B 5/00; handling thin or filamentary material B65H; electrography, electrophotography, magnetography G03G)  [4]
 B41F

Note(s)

Attention is drawn to Notes (1) and (2) following the title of subclass B41L.  [6]

 B41F
Subclass index
PLATEN PRESSES 1/00
CYLINDER PRESSES 3/00
ROTARY MACHINES
Letterpress, lithographic, intaglio machines 5/00, 7/00, 9/00
Other machines; combined machines 11/00, 17/00; 19/00
Details 13/00
Screen printers 15/00
Transfer printing machines 16/00
DETAILS
Handling sheets or other surfaces to be printed; treating such surfaces 21/00, 25/00; 22/00, 23/00
Attaching printing elements; make-ready arrangements, impression or offset surfaces; inking 27/00; 30/00; 31/00
Auxiliary devices; cleaning 33/00; 35/00
P:30 B41F 1/00
Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed
P:40 B41F 3/00
Cylinder presses, i.e. presses essentially comprising at least one cylinder co-operating with at least one flat type-bed
 B41F 5/00 - 
B41F 19/00
Rotary machines
P:60 B41F 5/00
Rotary letterpress machines
P:70 B41F 7/00
Rotary lithographic machines
P:80 B41F 9/00
Rotary intaglio printing presses
P:50 B41F 11/00
Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination
P:90 B41F 13/00
Common details of rotary presses or machines
 B41F 13/004
·  Electric or hydraulic features of drives  [6]
 B41F 13/008
·  Mechanical features of drives, e.g. gears, clutches  [6]
 B41F 13/02
·  Conveying or guiding webs through presses or machines (web handling in general B65H, e.g. step-by-step advancement B65H 20/00, turning or reversing B65H 23/04)
 B41F 13/08
·  Cylinders
 B41F 13/24
·  ·  Cylinder-tripping devices; Cylinder-impression adjustments
 B41F 13/54
·  Auxiliary folding, cutting, collecting, or depositing of sheets or webs (in general B26D, B65H; gathering sheets or signatures in bookbinding B42C 1/00)
P:100 B41F 15/00
Screen printers (for selective printing B41J 2/005)
 B41F 15/02
·  Manually-operable devices
 B41F 15/08
·  Machines
 B41F 15/10
·  ·  for multicolour printing
 B41F 15/12
·  ·  with auxiliary equipment, e.g. for drying printed articles
 B41F 15/14
·  Details
 B41F 15/34
·  ·  Screens; Frames; Holders therefor
 B41F 15/40
·  ·  Inking units
P:110 B41F 16/00
Transfer printing apparatus (apparatus or machines for applying decalcomanias B65C)  [4]
P:10 B41F 17/00
Printing apparatus or machines of special types or for particular purposes, not otherwise provided for (hand stamps, plier-like tools for printing or punching tickets or the like B41K; addressing machines or other office printing equipment B41L; coding or marking of packaging material or of completed packages in packaging machines B65B 61/00; ticket-printing and issuing apparatus G07B)
 B41F 17/08
·  for printing on filamentary or elongated articles, or on articles with cylindrical surfaces
P:20 B41F 19/00
Apparatus or machines for carrying out printing operations combined with other operations (auxiliary perforating apparatus associated with printing devices B41G 7/00; printing with a printer's forme combined with embossing B41M 1/00; coding or marking in association with packaging B65B 61/00; label dispensers having printing equipment B65C)  [2]
 B41F 21/00 - 
B41F 35/00
Common details of printing machinery
P:120 B41F 21/00
Devices for conveying sheets through printing apparatus or machines (through platen presses B41F 1/00; feeding sheets to or from printing apparatus or machines B65H)
P:140 B41F 22/00
Means preventing smudging of machine parts or printed articles (B41F 23/00 takes precedence)  [6]
P:130 B41F 23/00
Devices for treating the surfaces of sheets, webs, or other articles in connection with printing (cleaning in general B08B; as a final step in the manufacture of such articles, see appropriate subclasses, e.g. B29C 71/00, D21H 23/00 or D21H 25/00; surface treatment in general, see the relevant places, e.g. applying liquids or other fluent materials B05, of metals C23G)
P:150 B41F 25/00
Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes (apparatus for taking-out curl from webs in general B65H 23/34)
P:160 B41F 27/00
Devices for attaching printing elements or formes to supports (attaching by chemical means B41N 6/00)  [5]
 B41F 27/12
·  for attaching flexible printing formes
P:170 B41F 30/00
Devices for attaching coverings or make-ready devices; Guiding devices for coverings (make-ready devices B41N 6/00; blankets or like coverings B41N 10/00)  [5]
P:180 B41F 31/00
Inking arrangements or devices (inking units for platen presses B41F 1/00; inking units for cylinder presses B41F 3/00; inking-rollers serving also to apply ink repellent in rotary lithographic machines B41F 7/00; applying liquids or other fluent materials to surfaces, in general B05; for typewriters or selective printing mechanisms B41J)
 B41F 31/02
·  Ducts, containers, supply or metering devices (level control in general G05D 9/00)  [3]
 B41F 31/04
·  ·  with duct-blades or like metering devices
 B41F 31/06
·  ·  Troughs or like reservoirs with immersed, or partly immersed, rollers or cylinders
 B41F 31/08
·  ·  with ink-ejecting means, e.g. pumps, nozzles
 B41F 31/14
·  ·  Applications of messenger or other moving transfer rollers
 B41F 31/20
·  Ink-removing or collecting devices
P:0 B41F 33/00
Indicating, counting, warning, control, or safety devices (arrangements of counting devices in platen presses B41F 1/00, in cylinder presses B41F 3/00, in typewriters or selective printing mechanisms B41J 29/20; ink supply or metering devices B41J 31/02; such devices in general, see the relevant subclasses, e.g. counting in general G06M)  [3]
 B41F 33/04
·  Tripping devices or stop-motions (cylinder-tripping devices of rotary presses or machines B41F 13/24; arrangements for tripping inking rollers B41F 31/00)  [2]
 B41F 33/14
·  ·  Automatic control of tripping devices by feelers, photoelectric devices, pneumatic devices, or other detectors
P:190 B41F 35/00
Cleaning arrangements or devices
 B41F 35/06
·  for offset cylinders