IMPROVEMENTS IN THE MANUFACTURE OF TRAYS AND VARIOUS ARTICLES OF JAPANNERS, AND OTHER WARE MADE OF PULP
Year: 1845

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
BRINDLEY, of Liverpool Road, in the County of Middlesex, Paper Manu-
facturer, send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her.
Royal Letters Patent under the Great Seal of Great Britain, bearing date at
Westminster, the Sixth day of May, in the eighth year of Her reign, did, for
Herself, Her heirs and successors, give and grant unto me, the said William
Brindley, my exors, admors, and assigns, Her especial licence, full power,
sole privilege, and authority, that I, the said William Brindley, my exors,
admors, and assigns, or such others, as I, the said William Brindley, my exors,
admors, and assigns, should at any time agree with, and no others, from time
to time and at all times during the term of years, therein mentioned, should
and lawfully might make, use, exercise, and vend, within England, Wales,
and the Town of Berwick-upon-Tweed, my Invention of "IMPROVEMENTS IN
THE MANUFACTURE OF TRAYS AND VARIOUS ARTICLES OF JAPANNERS, AND OTHER
WARE MADE OF PULP;" in which said Letters Patent is contained a proviso,
that I, the said William Brindley, shall cause a particular description of the
nature of my said Invention, and in what manner the same is to be per-
formed, to be inrolled in Her said Majesty's High Court of Chancery, within
six calendar months next and immediately after the date of the said in part
recited Letters Patent, as in and by the same, reference being thereunto had,
will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
William Brindley, do hereby declare that the nature of my said Invention,
and the manner in which the same is to be performed, are fully described
and ascertained in and by the following statement thereof, that is to say:-
My Invention consists of a mode of making paper trays and other hollow
articles of pulp between moulds, whereby much saving of labour is obtained in
such manufacture. It is well known that in the manufacture of paper trays
and other articles made of pulp on or in moulds that for the most part the pulp
is made into sheets of paper, and then when dried the sheets are pasted in
successive layers on to a mould, the successive layers being dried in stoves;
and there is another mode for which Letters Patent were granted to me, and
which has come into extensive use, which consists of making a series of sheets
of paper in the ordinary manner, and in place of finishing the paper in separate
sheets, a succession of wet sheets, as they are made in a hand mould, are piled
one on the other, and when a sufficient thickness has been obtained the accu-
mulation of sheets are placed between felts and pressed, so as to bring the
compound sheet into a state to be handled without liability to injury, and such
compound sheet is placed between two moulds, the one concave and the other
convex, between which the compound sheet is submitted to pressure, and the
two moulds being secured together, the shape of the tray or other article made
or shaped in moulds is dried in a stove. But such process, though a great
improvement over the old system, is liable to objection, owing to the compound
sheets cracking when bending into shape in the moulds. And it should also
be stated that efforts have before been made to make trays and other articles
in moulds direct from the pulp, but without success; and I mention these in
order that the peculiar character of my Invention may be more readily under-
stood. In making sheets of paper in hand moulds by dipping the mould into
pulp and lifting it out therefrom, the sheet cannot be obtained of a thickness
for making paper trays and other hollow articles made from pulp in moulds;
but I have discovered that in following the process resorted to in making mill-
board any desired thickness of sheet of pulp may be made, and my Invention
consists in placing a sheet of pulp so made between a concave and a convex
mould or die suitable for making trays or other articles of japanners or other
ware, by which such manufacture will be greatly improved. In carrying out my
Invention I take an ordinary mould, such as is used by mill-board makers,
that is, a surface of wire cloth fixed in a frame, and having a border around it,
and by a ladle or otherwise I pour into such mould a quantity of pulp, so as to
fill it to the level of the border, or so high as the thickness of the tray or other
article to be made may require. I then as is usual cause the upper mould or

page_text: surface of wire cloth on a frame to be introduced, and placed on to the pulp,
and by means of a screw or other press I cause the upper wire surface to be
pressed down, by which the water of the pulp flows through the upper as well
as the lower surface of wire cloth, and a sheet of pulp is obtained between the
two surfaces of wire cloth, which, according to the process of mill-board
making, would then be placed between felts and pressed, it being very tender
and not capable of being handled; but according to my Invention I place such
sheet of pulp so obtained either at once between the concave and convex
moulds suitable for making trays or other hollow articles of japanners, or other
ware, such moulds being usually made of sheet iron, and each of the shape of
the tray or other hollow article to be moulded between them; or in order to
get the sheet of pulp between the mould I turn it off the wire cloth on to a
flat sheet of iron, and then place one of the moulds on to the sheet of pulp,
and then turn the flat sheet of iron and the mould, with the pulp between
them, over, by which the sheet of pulp will be received into the mould, when
I place the convex surface of the other mould to the sheet of pulp, and p
into the concave mould by hand till the pulp takes the shape of the space
between the two moulds; and having done so, I remove the first one, and then
the other mould to examine the surface, and if imperfect, I smooth the parts
over with the finger, and return the mould before removing the other, and
then I cause the pulp to be pressed in a screw or other press till the water is
pressed out; after which I secure the two moulds together, so as to retain the
pulp in form between them, and then dry the pulp so held by placing it in a
stove, such as have heretofore been used for such purposes. The forms of
pulp thus made and dried are then to be finished as heretofore.
press
it
Having thus described the nature of my Invention, and the best means I
am acquainted with for performing the same, I would have it understood that
what I claim is, the making of trays and other hollow articles from pulp in
moulds by producing sheets of pulp of the thickness desired, in the manner
herein described, and pressing and drying the same between concave and
convex moulds, as herein described.
In witness whereof, I, the said William Brindley, have hereunto set
my hand and seal, this Sixth day of November, in the year of our
Lord One thousand eight hundred and forty-five.
WILLIAM (L.s.) BRINDLEY.

page_text: AND BE IT REMEMBERED, that on the Sixth day of November, in the
year of our Lord 1845, the aforesaid William Brindley came before our
said Lady the Queen in Her Chancery, and acknowledged the Specification
aforesaid, and all and every thing therein contained and specified, in form
above written. And also the Specification aforesaid was stamped according
to the tenor of the Statute made for that purpose.
Enrolled the Sixth day of November, in the year of our Lord One
thousand eight hundred and forty-five.