DE255798C - - Google Patents

Info

Publication number
DE255798C
DE255798C DENDAT255798D DE255798DA DE255798C DE 255798 C DE255798 C DE 255798C DE NDAT255798 D DENDAT255798 D DE NDAT255798D DE 255798D A DE255798D A DE 255798DA DE 255798 C DE255798 C DE 255798C
Authority
DE
Germany
Prior art keywords
white
plates
asbestos
parts
writing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DENDAT255798D
Other languages
German (de)
Publication of DE255798C publication Critical patent/DE255798C/de
Active legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L1/00—Repeatedly-usable boards or tablets for writing or drawing

Landscapes

  • Paints Or Removers (AREA)

Description

BERLIN. GEDRUCKT IN DER REICHSDRUCKEREI.BERLIN. PRINTED IN THE REICHSDRUCKEREI.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung von Schreibtafeln mit weißer Schreibfläche, dadurch gekennzeichnet, daß man etwa 21Z2 Teile weißes mehlfeines Porzellan unter Zusatz von Wasser mit etwa 11Z2 Teilen Asbest und etwa dem 25. Teil weißer Farbe mischt, nachdem zuvor der Asbest gemahlen oder gekollert ist, wobei die Mischung durch einen Holländer und die Formung der Platten durch eine Pappenmaschine geschieht, wonach die Platten zu Schreibtafeln zerlegt,
gehärtet werden.Process for the production of writing boards with a white writing surface, characterized in that about 2 1 Z 2 parts of white flour-fine porcelain with the addition of water with about 1 1 Z 2 parts asbestos and about the 25th part of white paint are mixed after the asbestos has been ground beforehand or rolled, the mixing being done by a dutchman and the shaping of the plates by a cardboard machine, after which the plates are dismantled into writing boards,
hardened. getrocknet unddried and
DENDAT255798D Active DE255798C (en)

Publications (1)

Publication Number Publication Date
DE255798C true DE255798C (en)

Family

ID=513870

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT255798D Active DE255798C (en)

Country Status (1)

Country Link
DE (1) DE255798C (en)

Similar Documents

Publication Publication Date Title
DE255798C (en)
DE2218183A1 (en) Surface treatment method
DE2234068A1 (en) A PROCESS FOR THE PRODUCTION OF OBJECTS PROVIDED WITH PROFILED PATTERNS ON THE SURFACE, FOR EXAMPLE PANELS OR PLATES, FROM DEFORMABLE MATERIAL IN THE WAY OF ROCKING AND DEVICE TO PERFORM THE PROCESS
EP0486467A1 (en) Process for making panels or the like
CH230950A (en) Process for producing a top layer on surfaces.
DE2102455A1 (en) Process for the manufacture of panels, tiles and the like, as well as products manufactured in accordance with the same
DE368269C (en) Process for the production of artificial marble
DE599298C (en) Method of making a linoleum cement substitute
DE153292C (en)
AT22375B (en) Process for the production of phonograph cards or the like.
DE128728C (en)
DE181192C (en)
DE847120C (en) Process for the production of multicolored relief patterns on a substrate by means of a liquid base paint containing a grainy material
DE329107C (en) Process for the production of symbols and characters in glass plates
US902886A (en) Process of printing on wood.
DE841712C (en) Method and device for producing an oak wood grain on plywood panels or the like.
AT139447B (en) Process for the production of printing forms that can be printed directly.
DE237727C (en)
AT61265B (en) Process for the manufacture of artificial marble from cement.
DE229566C (en)
US1164037A (en) Printing-surface for color-printing.
DE456124C (en) Process for the production of colored masses from dried blood
DE223095C (en)
DE298785C (en)
DE543318C (en) Process for the production of artificially grained veneers