IMPROVEMENTS IN THE MANUFACTURE OF ORNAMENTAL AND OTHER ARTICLES FROM WOOD PULP, STRAW PULP OR RAG PULP, BY PRESSURE
Year: 1883

page_text: LETTERS PATENT to Peter Jensen of 33 Chancery Lane in the County of
Middlesex for an Invention of "IMPROVEMENTS IN THE MANUFACTURE OF
ORNAMENTAL AND OTHER ARTICLES FROM WOOD PULP, STRAW PULP OR RAG
PULP, BY PRESSURE
of Stockholm, Sweden
communicated to him from abroad by Anton Andersson
PROVISIONAL SPECIFICATION left by the said Peter Jensen at the Office
of the Commissioners of Patents on the 3rd December 1883.
"IMPROVE-
PETER JENSEN of 33 Chancery Lane in the County of Middlesex
MENTS IN THE MANUFACTURE OF ORNAMENTAL AND OTHER ARTICLES FROM WOOD
PULP, STRAW PULP OR RAG PULP, BY PRESSURE (A. communication to me from
abroad by Anton Andersson of Stockholm Sweden)
"
This method of manufacturing ornamental and other objects from any kind of
paper pulp is executed in the following manner; 50 Kilogrammes for instance of
paper pulp are dissolved in water, so that the whole forms a kind of porridge,
containing about 80 per cent of water (the greater percentage of water used
within certain limits, the stronger the product will prove).
The dissolved mass is poured into a bottom-mould and a woollen wad or soft
felt is placed upon it. The top mould is then put on and the whole is brought
under a press and subjected to a great pressure. The felt or the wad serves to
suck up the water, which during the pressure runs off along the sides of the
mould. The mould is then taken out of the press and is brought upon a heated
iron table or into any kind of drying apparatus, whereupon the manufactured
ornament within a short lapse of time can be taken out of the mould and be
perfectly dried. It may then be made harder or decorated by coating it with any
suitable colour or varnish. The moulds are provided with ribs for the sake of

page_text: strength, and have two or more steady pins for ensuring accurate register, also
with handles for conveniently manipulating them.
This method presents many advantages over the methods used hitherto in the
manufacture of ornaments and other articles. Such made of gypsum, paste of
lime, (pastelage) papier maché and other materials have been heavy, difficult and
fragile in regard of transport and impossible to apply everywhere (for instance
on strained paper).
The goods which heretofore have been offered in the market made by hand in
moulds, will by means of the above process be far stronger and nicer, and
ornaments may at the same time be manufactured in a much shorter time than
before and thus be sold at a much lower price.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Peter Jensen in the Patent Office on the 3rd June 1884.
.
PETER JENSEN of 33 Chancery Lane in the County of Middlesex "IMPROVE-
MENTS, IN THE MANUFACTURE OF ORNAMENTAL AND OTHER ARTICLES FROM WOOD
PULP, STRAW PULP OR RAG PULP, BY PRESSURE A communication to me from .
abroad by Anton Andersson of Stockholm, Sweden,
"
This method of manufacturing ornamental and other objects from any kind
of paper pulp is executed in the following manner; say 50 kilogrammes of paper
pulp for instance are dissolved in water, so that the whole forms a kind of
porridge, containing about 80 per cent of water (the greater percentage of water
used within certain limits, the stronger the product will prove.
The dissolved mass is poured into a bottom-mould and a woollen wad or soft
felt is placed upon it. The top mould is then put on and the whole is brought
under a press and subjected to a great pressure. The felt or the wad serves to
suck up the water, which during the pressure, runs off along the sides of the
mould. The mould is then taken out of the press and is brought upon a heated
iron table, or into any kind of drying apparatus, whereupon the manufactured
ornament within a short lapse of time can be taken out of the mould and be
perfectly dried. It may then be made harder or decorated by coating it with any
suitable colour or varnish. The moulds are provided with ribs for the sake of
strength and with two or more steady pins for ensuring accurate register, also with
handles for conveniently manipulating them.
This method presents many advantages over the methods used hitherto in the
manufacture of ornaments and other articles. Such made of gypsum, paste of
lime (pastelage) papier maché and other materials have been heavy difficult and
fragile in regard of transport and impossible to apply everywhere (for instance on
stretched or strained wall paper or canvas.
As compared with the goods which heretofore have been offered in the market,
made by hand in moulds, those made by the above improved process will be far
stronger and nicer and ornaments may at the same time be manufactured in a
much shorter time than before and thus be sold at a much lower price.
On the annexed drawing is represented a mould for manufacturing ornaments
according to this method.
Figure 1 is the mould viewed from the top and Figure 2 is a section on the
broken line A, B, C, D represents the top-mould and E the bottom-mould. The
top-mould is provided with two steady pins or guides F which, on putting the
top-mould properly on the bottom-mould drop into corresponding holes in the
bottom-mould. Each mould has, besides, three pegs G and H respectively
projecting out from the sides, by which the moulds can, by means of chains and
blocks be lifted. The moulds are, of course, different, for different kinds of
ornaments to be manufactured. When the pulp has been poured into the bottom-
mould and the woollen wad or piece of felt placed placed upon it, the mould is
subjected to pressure.
The moulds having been pressed together, with the wad and the ornament
produced between, there is a distance of about 3 to millimetres between them
for the ornament. In order to get the moulds both strong and light they are
provided at the top and at the bottom with ribs.
It is evident that the moulds, used for this method, may vary in many ways.
Likewise, the proportions of the ingredients of the pulp, indicated above, may also
vary a little without thereby altering the method itself.

page_text: Having now described the nature of the said invention and in what manner the
same is to be performed I declare that I claim as the Invention communicated
to me-
The manufacture of ornamental and other articles from paper pulp by heavy
pressure while employing strong metallic top and bottom-mould and a felt or
other suitable porous wad substantially as described.
In witness whereof I the said Peter Jensen have hereunto set my hand and
seal this Third day of June in the year of our Lord One thousand eight hundred
and eighty four.
PETER JENSEN (L.S.)