IPC 7 English version B41L !A-B41L 17/24

B41L-B41L01724

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 H04N) [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 B41F; stamps, stamping or numbering devices B41K)

Notes

(1)

This subclass does not cover constituent parts common to manifolding by means of pressure-sensitive layers or intermediaries, to apparatus or machines for duplicating or printing for office or other commercial purposes, or to addressing machines or like series-printing machines, which are covered by subclass B41F.

(2)

In this subclass, as indicated by the references, groups B41L 15/00 and B41L 17/00 are intended to cover letterpress and lithographic printing apparatus only in so far as it is specially adapted for office or other commercial purposes; the general constructions or features of apparatus of these types are classified in subclass B41F. Constructions or features determining classification in these groups are, for example: ease of operation by clerical staff, cleanliness of operation in non-industrial environments, the use of printing surfaces constructed for the production of a limited number of copies.

(3)

In this subclass, the following terms are used with the meanings indicated:

–

"manifolding" means the obtaining of several copies simultaneously by means of pressure-sensitive layers when making an original;

–

"duplicating" means the obtaining of successive copies from a master, e.g. a hectographic image;

–

"stencilling" involves the use of a printing surface which is perforated to form the image, the ink flowing through the perforations on the copy material.

Subclass Index

MANIFOLDING

B41L 1/00, B41L 3/00, B41L 5/00

DUPLICATING

From hectographic masters

B41L 7/00, B41L 9/00, B41L 11/00

By stencil

B41L 13/00

Otherwise

B41L 19/00

PRINTING

Letterpress apparatus

B41L 15/00

Lithographic apparatus

B41L 17/00

Other apparatus

B41L 19/00

COMMON DETAILS OR ACCESSORIES

Treatment of surfaces before printing; handling thereof

B41L 23/00; B41L 21/00, B41L 33/00

Impression or offset surfaces; moistening thereof

B41L 38/00; B41L 25/00

Inking

B41L 27/00

Handling printing elements or formes

B41L 29/00 to B41L 33/00

Cylinders; Attaching coverings or make-ready devices

B41L 35/00; B41L 38/00

Auxiliary operations

B41L 39/00, B41L 41/00, B41L 43/00

SPECIAL MACHINES FOR SERIES-PRINTING

B41L 45/00, B41L 47/00, B41L 49/00

Manifolding by means of pressure-sensitive layers or intermediaries

Devices for performing operations in connection with manifolding by means of pressure-sensitive layers or intermediaries, e.g. carbons; Accessories for manifolding purposes

Devices for preparatory operations, e.g. for bringing together sheets or webs and interposed carbons; Devices combined with devices for printing, for coating with carbon, for folding

Devices for performing operations subsequent to manifolding, e.g. for separating single sheets or webs from single form sets, continuous manifold assemblies from carbons

on single form sets

on continuous manifold assemblies

Separate folding or disposition of single webs

Severing webs to obtain single sheets or forms, e.g. by cutting, by bursting

Severing edge perforations from webs

Carriers or supply devices for pressure-sensitive material, e.g. for carbon sheets; Carbon gloves

for carbon webs; Continuous carbon-supply mechanisms

Manifolding assemblies, e.g. book-like assemblies

made up of single sheets or forms

Pads or books

Continuous assemblies made up of webs

in rolled or wound form

folded longitudinally

folded transversely

for making masters for hectographic duplicators

with pressure-sensitive layers or coating other than carbon (sheet materials B41M 5/00)

Platens or like sheet supports for manifolding using pressure-sensitive layers or intermediaries, e.g. for book-keeping purposes

with stationary clamping means for holding the manifolding assembly in registered position, e.g. resilient clamps for holding non-perforated sheets

Bars provided with pins engaging perforations in the elements

with movable clamping or guiding means for the elements of the manifolding assembly

with non-mechanical means for holding the elements in registered position, e.g. magnetic means

with means for moving assembled elements step by step relative to platen or support, e.g. for column or line selection; Means for locating assembled elements when stationary

Auxiliary devices

Magazines or storage compartments, e.g. for slips

Web-feeding arrangements

Displaceable covers, e.g. with windows

for facilitating manifolding in books

Applications of ink ribbons; Holding, feeding, or guiding means therefor

Autographic registers or like manifolding apparatus using movable strips or webs (movable-strip writing or reading apparatus B42D 19/00)

with means for limiting movements of webs fed by hand

with mechanisms for feeding webs or for arranging web feed; with web-storage arrangements

by means of rollers, wheels, or chains

by reciprocating mechanisms

with mechanisms for feeding the pressure-sensitive web or webs separately from the other webs, e.g. transversely

with means for indicating exhaustion of web supply

with auxiliary means for printing, perforating, or severing the web

Accessories, e.g. drawers for storing forms, for money (cash registers G07G)

Apparatus or machines for duplicating or printing for office or other commercial purposes

Apparatus for directly duplicating from hectographic originals, i.e. for obtaining copies in mirror image

by passing original and copy-sheet or -web between rollers

with means for guiding original or copy-sheet or -web

with means for severing copy-sheet or -web

with means for moistening or drying

Apparatus for indirectly duplicating from hectographic originals by means of hectographic intermediaries or transfer surfaces, i.e. "dry duplicators"

Containers for clay or gelatin

with flat supports over which gelatin-paper is stretched

and with carriages for feeding the sheets

and with devices for rolling-in and securing hectographic gelatin-paper webs

with rotary cylinders carrying sheets of hectographic gelatin-paper

11/

Apparatus for directly duplicating from hectographic masters in mirror image, i.e. "wet duplicators" for producing positive copies

11/

with a flat support carrying the masters

11/

and with carriages for feeding the sheets

11/

for stack duplicating with pressure rollers

11/

with rotary cylinders carrying the masters

11/

with two rollers between which master is stretched

11/

Driving gear; Control thereof

11/

Constructional features of masters (chemical aspects B41M)

13/

Stencilling apparatus for office or other commercial use (screen printing B41F 15/00; stencils, stencil materials, carriers therefor B41N 1/24)

13/

with flat stencil carriers

13/

with curved or rotary stencil carriers

13/

with a single cylinder carrying the stencil

13/

with stencil carried by two or more cylinders, e.g. through the intermediary of endless bands

13/

Clips or clamps for securing stencils to stencil carriers

13/

for special purposes, e.g. for reproducing Braille characters

13/

Attachments, e.g. for punching, cutting, severing

13/

Driving gear; Control thereof

13/

Inking units [3]

15/

Letterpress printing apparatus specially adapted for office or other commercial purposes (in general B41F; printing plates or foils, materials therefor B41N 1/00)

15/

with flat printing surfaces, e.g. with flat type-beds, surfaces made of thin sheet material or moulded from plastics or rubber

15/

of composed type locked in chases

15/

with curved printing surfaces, e.g. cylinders

15/

with stereotypes

15/

for multicolour printing; for perfecting

15/

Driving gear; Control thereof

15/

Attachments, e.g. for punching, cutting, severing

17/

Lithographic printing apparatus for office or other commercial purposes (in general B41F; printing plates or foils, materials therefor B41N 1/00)

17/

for direct impression printing

17/

with flat printing surfaces

17/

with curved printing surfaces, e.g. cylinders

17/

for offset printing

17/

with flat printing surfaces, e.g. co-operating with travelling offset cylinders

17/

with curved printing surfaces, e.g. forme cylinders

17/

of two-cylinder type, e.g. co-operating forme and impression cylinders

17/

of three-cylinder type

17/

for multicolour printing, e.g. tandem machines; for perfecting

17/

without damping means, e.g. using heat-activatable inks, refrigerated printing surfaces

17/

Driving gear; Control thereof

17/

Attachments, e.g. for punching, cutting, severing

B41L 19/00 - B41L 35/34