Improvements in Pictures for Colouring by Children, and Process for Making the same.
Year: 1894

page_text: Date of Application, 28th Mar., 1894-Accepted, 12th May, 1894
COMPLETE SPECIFICATION.
Improvements in Pictures for Colouring by Children, and Process
for Making the same.
We, CARL RADLER, Captain, and FIDELIUS TSCHOFEN, First Lieutenant in
the Austro-Hungarian Army, both of 8 Rotherhof, Vienna 8, in the Empire of
Austria, do hereby declare the nature of this invention and in what manner the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
This invention provides a novel and simple method of making coloured pictures,
by means of which, with the aid of an ordinary paint-brush and clean water,
children are enabled to colour pictures, without employing paints and without any
previous knowledge of painting.
These pictures consist of two sheets of paper, stuck or pasted together, one of
them being pervious to colours; the colours used are placed between these two
sheets, so that their presence can scarcely be detected.
The front (pervious) sheet bears only the contour or outline of the picture,
text, etc., within which contour the colours, when brushed over with water, dissolve
and are visible through the paper; the second sheet serves to conceal and hold the
covering matter and to make the paper more rigid or strong in case the pictures
are to be eventually cut out.
The pictures are produced as follows:-
A piece of pervious paper, (for instance, silk-paper) slightly coated with an
agglutinant, bears on one side the outline of a picture, (such as soldiers, animals,
flowers, landscapes etc.); on the reverse side the colours are so applied, that, when
the front side is brushed over with water, they dissolve and immediately appear in
their proper places.
To prevent the colours being visible at the back of the paper, and also to
strengthen the sheet bearing the picture, a second sheet is attached, as afore-
mentioned, or the coloured side may be coated with an opaque colouring.
The arrangement of the outlines or contours on the front or pervious sheet
of paper, and the colours on the back sheet, has not proved so advantageous.
To
prevent the colours running or extending beyond the required limits, in case
the paint brush is too wet, it is preferable to cover the front sheet, on the coloured
side, with a suitable coating containing only a little agglutinant.
The outlines or contours, and colours are preferably produced or applied to the
paper by means of lithography; by employing a deep black colouring, the colours
are, to a very large extent, prevented from running.
In preparing the colour-stones, a counter imprint is made from the stones bearing
the outlines by means of reprint paper, and the individual colours are then filled in.
Any non-poisonous colours, which readily dissolve in water may be used. Such
colours are well ground with boiled linseed-oil-varnish, (for instance in the
proportion of to 3) and are applied to the stones, which must not be too wet for
taking the prints off, to prevent the colours striking through the paper.
If the contours and colours are made on the front and back side respectively of.
the same sheet, the colours are preferably concealed by means of a sheet, whose
colour on the inner side is dark, (for instance ultramarine, or indigo); the colours
are then not so visible through the paper.
For sticking or pasting the paper together, it is preferable to employ a viscid
solution of glue or a glutinous varnish, to which a siccative or eventually a colouring
matter may be added during boiling; large sheets are preferably stuck together
by means of any suitable machine.

page_text: It will be evident that the contours or outlines may also be made with colours on
the reverse side of the paper, so that when the sheet is brushed over with water,
both the colours and contours appear.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
1. A magic coloured picture, which, by merely brushing with water, produces
colours within the contour or outline of a picture, or even such outlines themselves,
consisting essentially of a pervious sheet of paper on whose reverse side colours
readily soluble in water are applied, the contour of the picture being either at the
front or reverse side of the sheet, and the colours concealed by pasting over same
a second sheet, preferably of dark colour, substantially as described.
2. The process for making the sheets described in Claim 1, characterized by
applying the contour of the picture on the front side of the paper, with viscid
colouring, and the corresponding colours on the reverse side by means of lithography,
the latter colours being then concealed by a dark-coloured sheet, substantially as
described.
ALLISON BROS.,
Agents for the Applicants.