An Improved Method of and Apparatus for Manufacturing Wall Coverings having Designs in Relief.
Year: 1897

page_text: Date of Application, 13th Apr.,
1897
Complete Specification Left, 27th Nov., 1897-Accepted, 5th Feb.,
1898
An Improved Method of and Apparatus for Manufacturing Wall
Coverings having Designs in Relief.
I, ANDREAS GUULSEN HAERE, of Hadeland, Oestre Lunner, in the Kingdom
of Norway, Engineer, do hereby declare the nature of this invention to be as.
follows:-
Wall paper and wall coverings which have designs in relief have heretofore
been manufactured by pressing the finished material, for example paper, between
two impressed plates, while heating takes place, in order that the design may be
preserved after discontinuing the pressure.
This method presents various drawbacks. As only a comparatively small space
can be heated, small pieces or lengths can only be produced, whilst the production of
long strips does not succeed. Moreover great care has to be exercised in carrying
the method into effect, because the several pieces or lengths of the wall paper
must always be adapted precisely to the adjoining pieces or lengths.
By the present method I remedy the aforesaid drawbacks, inasmuch as it enables
wall papers of any length, so-called endless pieces, to be manufactured. This
method consists in starting from the crude wood pulp or an unworked paper pulp.
The crude wood or paper pulp ground with water passes upon sieve cylinders,
thence upon felt, and is next conducted to rollers where the pressing takes place.
From the rollers the pressed wall paper passes upon drying cylinders, drying
plates or the like, and may then be wound up. When desired the inner side of
the wall paper may, after the impression of the design, be coated with a size or
paste, whereupon, in order to obtain greater durability, a fabric is pressed upon
the side furnished with size or paste, thus forming a wall paper having a backing
of fabric.
Prior to the winding up of the wall paper the latter may be passed through a
colouring machine where the application of the colour takes place.
In carrying the method into effect it is necessary that after the impression
of the design the side of the wall paper furnished with the reliefs shall not come
in contact with the drying cylinders or other parts of the machine, in order to
obviate damage being done to the ornaments. The essential feature of the method
consists in providing the material with the design when still moist in a peculiar
manner by impression, and effecting the drying only after this has been accom-
plished.
This method is carried out in the following manner:--
The crude, moist wood or paper pulp placed in boxes, of which there may be
any desired number. This material is caused to pass upon the sieve cylinders,
is there in part freed from water and then passed on to the endless apron of felt.
By this apron the material is conducted between two rollers. The upper of these
two rollers is furnished with the design which is to be impressed, whereas the
lower roller made of rigid material is pressed against the upper roller, thereby

page_text: causing the design to be pressed into the material. The material provided with
the impression is conveyed between the upper roller and another roller, the latter
possessing an elastic surface, for instance of rubber. The rubber faced roller
is pressed by the weight against the engraved upper roller. The lower roller serves
at the same time as an abutment for the upper one and as a guide roller for the
apron.
When it is desired to provide the wall paper with a backing of fabric such
paper is, prior to its passage between the rubber faced roller and the upper roller
furnished with a paste or size by the device, whilst the fabric is unwound from a
reel or roller and pressed at the same time as the material between the rubber
faced roller and the upper roller.
The finished wall paper now passes over drying cylinders between the drying
boxes to the colouring machine. After the colouring has taken place I dry
again, and the wall paper is now wound up. The weight presses the roller rubber
faced roller against the upper roller, whilst a tension device imparts the desired
tension to the apron of felt.
The method hereinbefore set forth presents especially two advantages by which
the method of manufacturing wall papers and wall coverings is cheapened to an
extraordinary extent.
.
(1) I dispense with the precise fitting of the several pieces or lengths of the
wall paper in the printing, in fact I obtain endless pieces, so that the attendance
and consequently the wages are considerably reduced.
(2) As the heating of the printing parts is dispensed with, the design need not
be cut in metal, the material of the roller being quite optional, so that again the
cost of production will be greatly reduced.
Another great advantage in the manufacture of wall papers according to the
method herein before described consists in obviating the flattening of the orna-
ments, whilst other wall papers are liable to be flattened.
In like manner I may also manufacture wall coverings and the like. The wall
papers present the advantage of being air-tight and of being adapted to keep off
moisture.
יני
101
1
"
1000
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
An Improved Method of and Apparatus for Manufacturing Wall
Coverings having Designs in Relief.
I, ANDREAS GUULSEN HAEIRE, of Hadeland, Oestre Lunner, in the Kingdom
of Norway, Engineer, 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:-
Wall paper and wall coverings which have designs in relief have heretofore
been manufactured by pressing the finished material, for example paper, between
two impressed plates, while heating takes place, in order that the design may be
preserved after discontinuing the pressure.
This method presents various drawbacks. As only a comparatively small space
can be treated, small pieces or lengths can only be produced, whilst the production of
long strips does not succeed. Moreover great care has to be excerised in carrying