IMPROVEMENTS IN APPARATUS FOR PRESSING OR MOULDING D E A A DIMINT S DAY DASIC MimantiROMERIA
Year: 1880

page_text: LETTERS PATENT to Henry Johnson and Benjamin Suart, both of Keymer
Junction, in the County of Sussex, Brick and Tile Manufacturers, for an
Invention of "IMPROVEMENTS IN APPARATUS FOR PRESSING OR MOULDING
D
E
A
A DIMINT S
DAY DASIC Mimanti"
PROVISIONAL SPECIFICATION left by the said Henry Johnson and
Benjamin Suart at the Office of the Commissioners of Patents on the 24th
December 1880.
HENRY JOHNSON and BENJAMIN Suart, both of Keymer Junction, in the
County of Sussex, Brick and Tile Manufacturers. "IMPROVEMENTS IN APPARATUS
FOR PRESSING OR MOULDING BRICKS, TILES, OR OTHER ARTICLES, FROM PLASTIC
MATERIALS."
Our Invention has reference to box moulds for forming bricks, tiles, or other
like articles, by the process of pressing by steam or hand power, and its object is
to mould or press sand faced bricks or other plain or ornamental bricks, or articles
having a pattern or ornament on one or more of their faces, sides, ends, or edges,
or to form a roofing or other tiles of plain or ornamental shapes or patterns, with
nibs thereon or boles therein for pegs or nails; or to form a number of ornamental
or embossed articles at one operation from plastic clay or other semi liquid material
or composition, and to allow of the said moulded or pressed bricks, tiles, or other
articles to be readily removed from the box without friction or rubbing of the sand
or ornamental sides, ends, or faces.
For this purpose we make the box mould in such manner that when it is
removed from the outer die or box, or when there is no pressure on its sides or
ends, the said sides or ends spring open or can be readily moved outwards from
the bottom of the box, so that being no longer in contact with the brick, tile, or
other article which has been moulded or pressed, they do not interfere with the
removal of the said article.
In carrying out the Invention we prefer to make the box mould of any suitable
thin pliable metal, such as zinc, tin, or brass, and to either hinge the sides and ends

page_text: to the bottom so that they can be turned up at right angles thereto, or to form the
sides and ends out of the same piece of metal as the bottom, and turn them up at
an angle thereto approaching a right angle. The sides and ends are mitred or
otherwise formed so as to allow them to close together at the angles when under
pressure or when forced down into the outer box or die of a press. The top plate
of the press fits the box mould accurately and prevents the sides or ends being
pressed inwards beyond the perpendicular position. When the pressing or moulding
has been completed and the box mould has been lifted up out of the press, the
sides and ends spring slightly open or are turned down on their hinges, or are
otherwise moved away from the bottom (according to the particular construction
adopted), and thereby the brick or article which has been pressed can be removed
without its sides, ends, or ornamental face being rubbed or destroyed.
In some cases, instead of making the sides and ends of the box to move away
from the bottom as above described, we make the box in two parts hinged together
at the middle or other part of the bottom, so that they can be opened out on
their hinge when it is required to remove the pressed article or articles.
The Invention also includes the employment in the box moulds of separating
plates (say, 4, more or less) by the use of which a number of tiles or other articles
can be moulded at the same operation. These plates fit accurately into the mould
in the horizontal sense, and are interposed between alternate layers of clay or
plastic material, they are plain or embossed or otherwise shaped to correspond
with the pattern required in the moulded articles.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Henry Johnson and Benjamin Suart in the Great Seal Patent
Office on the 22nd June 1881.
HENRY JOHNSON and BENJAMIN SUART, both of Keymer Junction, in the
County of Sussex, Brick and Tile Manufacturers. "IMPROVEMENTS IN APPARATUS
FOR PRESSING OR MOULDING BRICKS, TILES, OR OTHER ARTICLES, FROM PLASTIC
MATERIALS."
Our Invention has reference to box moulds for forming bricks, tiles, or other like
articles, by the process of pressing by steam or hand power, and its object is to
mould or press sand faced bricks or other plain or ornamental or moulded bricks or
articles having a pattern or ornament on one or more of their faces, sides, ends, or
edges, or to form roofing or other tiles of plain or ornamental shapes or patterns
with nibs thereon, or holes to register therein for pegs or nails, or to form a number
of ornamental or embossed articles at one operation from plastic clay or other
semi-liquid material or composition, and to allow the said moulded or pressed
bricks, tiles, or other articles, to be readily removed from the box without friction
or rubbing of the sand or ornamental sides, ends, or faces.
For this purpose we make the box mould in such manner, that when it is lifted
up or removed from the outer die or box, or when there is no pressure on its sides
or ends, the said sides or ends spring open, or can be readily moved outwards from
the bottom of the box, so that being no longer in contact with the brick, tile, or
other articles, which has been moulded or pressed, they do not interfere with the
removal of the said article.
In carrying out the Invention we prefer to make the box mould of any suitable
metal, such as zinc, tin, or brass, and to either hinge the sides and ends to the
bottom, so that they can be turned up at right angles thereto, or to form the sides
and ends out of the same piece of a thin pliable metal as the bottom, and turn them
up at an angle thereto approaching a right angle. The sides and ends are mitred,
or otherwise formed, so as to allow them to close together at the angles when
under pressure, or when forced down into the outer box or die of a press.
The top
plate of the press fits the box mould accurately, and prevents the sides or ends
being pressed inwards beyond the perpendicular position. When the pressing or
moulding has been completed, and the box mould has been lifted up out of the
press, the sides and ends spring slightly open, or are turned down on their hinges,
or are otherwise moved away from the bottom (according to the particular con-
struction adopted), and thereby the brick or article which has been pressed can be
removed without its sides, ends, or ornamental face being distorted, rubbed, or
destroyed.
In some cases, instead of making the sides and ends of the box to move away
from the bottom, as. above described, we make the box in two parts hinged together
at the middle or other part of the bottom, so that they can be opened out on their
hinges when it is required to remove the pressed article or articles.
The Invention also includes the employment in the box moulds of separating
plates (say, 4, more or less) by the use of which a number of tiles or other articles
can be moulded at the same operation. These plates fit accurately into the mould
in the horizontal sense, and are interposed between alternate layers of clay or
plastic material; they are plain or embossed, or otherwise shaped to correspond
with the pattern required in the moulded articles.
The accompanying Drawings illustrate our Invention. Figure 1 is a longitudinal
section of a press in which the box mould is made with its sides and ends hinged
to its bottom; Figure 2 is a transverse section of the same press, and it also shows

page_text: the slabs or layers of clay in position ready for the pressing operation and the
separating plates between them; Figure 3 is a perspective view of a box mould in
which the sides and ends are formed out of the same piece of metal as the bottom,
and are turned up, as shown, at an angle thereto approaching a right angle, as
herein before described.
A, A, Figures 1 and 2, is the outer die or box which may either have tapered
sides and ends, as shown, or parallel sides and ends; B is the bottom plate of the
press, it is formed with a boss C which protrudes through the bottom of the die A,
and forms a socket for the head of a rod D, by which the plate B is raised and
lowered. E is the bottom of the box mould screwed or fixed to the plate B,
and F, F, are the sides and ends of the mould made either parallel or tapered to
correspond with the outer box A; they are connected to the bottom E by
hinges GA, GA, and are mitred or otherwise formed so as to close together at their
angles. H, H, are grooves in the die or outer box A to guide the studs G for the
purpose of keeping the box mould in position when being lowered into the die or
raised therefrom. BA, BA, are pins attached to the bottom plate B, and rising and
falling there with, they pass through holes in the bottom E and in the separating
plates, and are used in the pressing of articles which require to have holes through
them. I is the press plate having two sunk holes to receive pins BA, BA. K, K,
(Figure 2) are the slabs or layers of clay or material ready for pressing. L, L, are
the separating plates, they fit accurately into the box mould, and are either plain
or are embossed or otherwise shaped to correspond with the pattern required in the
moulded articles. When other than plain articles are required, one of these
plates L is placed as seen in Figure 2, between the press plate I and the top clay
Blub K.
The mode of working the press will be readily understood. The box mould
containing the slab or slabs of clay to be pressed, and the separating plates (when
several slabs have to be pressed at one operation) having been lowered into the
outer box A, the requisite pressure is exerted in the ordinary manner either by
forcing down the press plate I, or forcing up the bottom plate B. When the
pressing has been completed, the box mould, with the pressed slab or slabs, is
pushed up out of the outer box A by means of the plate B and its rod D; and as
soon as it is clear of the box A, the sides and ends F fall open, or can be readily
moved open on their hinges, so that being no longer in contact with the compressed
brick or other article or articles they do not interfere with the removal of the said
article or articles. The press plate I is raised clear of the compressed article or
articles either before or after the sides and ends F are opened.
Having now described the nature of our said Invention, and in what manner
the same is to be performed, we declare that we claim,-
First. Constructing the box moulds of presses for pressing or moulding articles
from plastic materials in such manner, that when they are removed from the outer
box or die, or the pressure on their sides and ends is removed, the said sides and
ends fail open, or can readily be moved outwards from the bottom of the box
mould, substantially as and for the purpose herein before described.
Second. The employment in the box moulds of presses, such as those herein
referred to, of separating plates in the manner and for the purpose herein before
described.
In witness whereof, I, the said Henry Johnson, for myself and on behalf of
the said Benjamin Suart, have hereunto set my hand and seal, this
Twenty first day of June Una thousand night lundred and eighty one