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]
 B41D
APPARATUS FOR THE MECHANICAL REPRODUCTION OF PRINTING SURFACES FOR STEREOTYPE PRINTING; SHAPING ELASTIC OR DEFORMABLE MATERIAL TO FORM PRINTING SURFACES (marking or engraving metal by the action of a high concentration of electric current B23H 9/06; type, machines, or accessories for making, setting, or distributing type B41B; processes for the manufacture or reproduction of printing surfaces B41C; machines or apparatus for engraving in general, or for embossing B44B 3/00, B44B 5/00; chemical etching of metal C23F 1/00; electrolytic etching C25F 3/00; photomechanical reproduction G03F)
P:0 B41D 1/00
Preparing or treating stereotype matrices
 B41D 1/02
·  using brushes
 B41D 1/04
·  using cylinders or rollers
 B41D 1/06
·  using presses, e.g. toggle or like lever-and-link type presses
 B41D 1/08
·  ·  using hydraulic presses
 B41D 1/10
·  Performing secondary operations on matrices
 B41D 1/12
·  ·  Humidifying or moistening
 B41D 1/14
·  ·  Drying
 B41D 3/00 - 
B41D 7/00
Producing printing surfaces
P:10 B41D 3/00
Casting stereotype plates; Machines, moulds, or devices therefor
 B41D 3/02
·  Horizontal moulds for casting flat plates
 B41D 3/04
·  Moulds, e.g. horizontal, for casting curved, e.g. semi-cylindrical, plates
 B41D 3/06
·  ·  Vertical moulds
 B41D 3/08
·  Moulds, e.g. horizontal, for casting tubular, i.e. cylindrical, plates
 B41D 3/10
·  ·  Vertical moulds
 B41D 3/12
·  Multiple-mould stereotype casting machines
 B41D 3/14
·  Details
 B41D 3/16
·  ·  Matrix clamps
 B41D 3/18
·  ·  Devices for closing or opening moulds
 B41D 3/20
·  ·  Melting pots
 B41D 3/22
·  ·  ·  with pumps for conveying the molten metal into the casting chambers or boxes
 B41D 3/24
·  ·  ·  with control valves
 B41D 3/26
·  ·  ·  with devices for stirring the molten metal
 B41D 3/28
·  ·  Devices for cooling the moulds
P:20 B41D 5/00
Working, treating, or handling stereotype plates
 B41D 5/02
·  by bending
 B41D 5/04
·  of flat plates
 B41D 5/06
·  of curved plates
P:30 B41D 7/00
Shaping elastic or deformable material, e.g. rubber, plastics material, to form printing surfaces (making rubber printing blocks B41C 3/04)
 B41D 7/02
·  by impression
 B41D 7/04
·  Forming printing surfaces by covering printing forms with a thin elastic skin, e.g. rubber foil, and retaining the latter thereon; Obtaining reduced or enlarged printing surfaces by using thin elastic transfer foils (pantographic instruments for copying, reducing, or enlarging B43L 13/10)
   
P:40 B41D 99/00
Subject matter not provided for in other groups of this subclass  [8]