IPC 6 English version B41L 19/00-B41L 35/34

B41L01900-B41L03534

SECTION B– PERFORMING OPERATIONS; TRANSPORTING

B 41

PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS (reproduction or duplication of pictures or patterns by scanning and converting into electrical signals H 04 N) [4]

B 41 L

APPARATUS OR DEVICES FOR MANIFOLDING, DUPLICATING, OR PRINTING FOR OFFICE OR OTHER COMMERCIAL PURPOSES; ADDRESSING MACHINES OR LIKE SERIES-PRINTING MACHINES (printing presses or machines for industrial purposes B 41 F; stamps, stamping or numbering devices B 41 K)

19/

Duplicating or printing apparatus or machines for office or other commercial purposes, of special types or for particular purposes and not otherwise provided for (addressing machines B 41 L 45/00)

19/

having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress and lithographic processes selectively or in combination (in general B 41 F 11/00)

19/

for printing from selected parts of one or more printing surfaces in one cycle, e.g. line printing (by inking selected areas B 41 L 27/20)

19/

with co-operating forme and impression cylinders

19/

by effecting relative movement of forme and impression cylinders during printing cycle

19/

by projecting and retracting parts of the surfaces of the forme cylinders

19/

by masking parts of the printing surfaces on the forme cylinders

19/

by selective damping of the copy material

19/

by selective tripping of impression cylinders

Common details of, or accessories for, apparatus or machines for manifolding, duplicating, or printing for office or other commercial purposes

21/

Devices for conveying sheets or webs of copy material through apparatus or machines for manifolding, duplicating, or printing (mechanisms for conveying copy material through addressing machines or like series-printing machines B 41 L 47/24)

21/

for conveying sheets

21/

Pins

21/

Grippers

21/

Suction-operated grippers

21/

Combinations of endless conveyers and grippers

21/

for conveying webs

23/

Devices for treating the surface of sheets, webs, or other articles in connection with printing (cleaning in general B 08 B, of metals C 23 G; as a final step in the manufacture of such articles, see the relevant places, e.g. B 29 C 71/00, D 21 H 23/00 or D 21 H 25/00; after-treatment of prints B 41 M 7/00)

23/

by damping, e.g. by moistening copy-sheets in connection with hectographic printing

23/

using friction rollers

23/

using brushes

23/

using spray elements

23/

using endless bands

23/

using absorbent pads

23/

Ducts, containers, or like supply devices for liquids

23/

Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor

23/

Construction of damping rollers

23/

by heat drying, by cooling, by applying powders

23/

Powdering devices, e.g. for preventing set-off

23/

Print-finishing devices, e.g. for glossing prints

25/

Devices for damping printing surfaces, e.g. moistening printing surfaces in connection with lithographic printing (applying liquids or other fluent materials to surfaces, in general B 05)

25/

using friction rollers

25/

using brushes

25/

using spraying elements

25/

using endless bands

25/

using absorbent pads

25/

Ducts, containers, or like supply devices for liquids

25/

Inking rollers serving also to apply ink repellent

25/

Devices for tripping or lifting damping rollers; Supporting, adjusting, or removing arrangements therefor

25/

Construction of damping rollers

27/

Inking arrangements or devices (inking units for stencilling apparatus B 41 L 13/18; applying liquids or other fluent materials to surfaces, in general B 05) [3]

27/

adapted for inking by hand

27/

Ducts, containers, supply devices or ink-level control devices (level control in general G 05 D 9/00) [3]

27/

Duct-blades or like supply devices

27/

Troughs or like reservoirs with immersed, or partly immersed, rollers

27/

with ink-ejection means, e.g. pumps, nozzles

27/

Feed or duct rollers (messenger or moving transfer rollers B 41 L 27/16)

27/

adjustable for regulating supply

27/

Messenger or other moving transfer rollers

27/

Continuous, e.g. endless-band, apparatus

27/

for inking selected parts of printing formes

27/

Ink-removing or collecting devices

27/

for inking from interior of cylinder

27/

Absorbent pads

27/

Construction of inking rollers

27/

Spray apparatus, e.g. containing brushes

27/

Arrangements for tripping, lifting, adjusting, or removing inking rollers; Supports, bearings, or forks therefor

27/

Lifting or adjusting devices

27/

Cams, eccentrics, wedges, or the like devices

27/

fluid-pressure operated

27/

magnetically operated

29/

Devices for attaching printing elements or formes to supports

29/

magnetic

29/

for attaching printing elements to flat type-beds

29/

for attaching printing elements to forme cylinders

29/

for attaching printing formes to flat type-beds

29/

for attaching non-deformable curved printing formes to forme cylinders

29/

for attaching flexible printing formes

29/

Clamping devices

29/

operating automatically during operation of rotary machines to attach the printing formes to the forme cylinders

29/

electromagnetic, pneumatic, or hydraulic

29/

for adjusting position of leading edges of flexible printing formes circumferentially of forme cylinders

29/

for attaching printing formes to intermediate supports, e.g. adapter members

31/

Devices for removing flexible printing formes from forme cylinders

33/

Pressing flexible printing formes or sheets or webs of copy material against cylinders, e.g. for smoothing purposes

35/

Cylinders for apparatus or machines for manifolding, duplicating, or printing for office or other commercial purposes

35/

Forme cylinders

35/

Registering devices

35/

with means for displacing the cylinders

35/

with means for displacing the printing formes on the cylinders

35/

Impression cylinders

35/

Bearings or supports for forme, offset or transfer, or impression cylinders

35/

Means for heating or cooling forme or impression cylinders

35/

Cylinder-tripping devices; Cylinder-impression adjustments

35/

Arrangements or dispositions of cylinder bearings, forks, or supports

35/

Eccentric bearings

35/

Sliding bearings

35/

Swinging bearings

35/

Cylinder-lifting or adjusting devices

35/

Cams, eccentrics, wedges, or the like

35/

electrically or magnetically operated

35/

fluid-pressure operated

35/

Guards or covers, e.g. for safety purposes, for preventing egress or ingress of foreign matter

B41L - B41L 17/24

B41L 38/00 - B41L 49/04