Improvements in or relating to Machinery or Apparatus Employed in the Manufacture of Bricks, Tiles, or other Forms.
Year: 1886

page_text: Date of Application, 25th Oct., 1886.
Complete Left, 23rd July, 1887.
Complete Accepted, 9th Sept., 1887.
Improvements in or relating to Machinery or Apparatus Employed
in the Manufacture of Bricks, Tiles, or other Forms.
1, RICHARD SCHOLEFIELD, of Burley Vale Mills, Kirkstall Road, Leeds, in the
County of York, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to that class of machinery or apparatus employed in the
manufacture of bricks, tiles, or other forms, in which the clay, plastic, or semi-plastic
material is moulded and pressed into shape in a rotating cylinder.
Hitherto in machinery of this description only one cylinder has been employed, and
after the clay or other plastic or semi plastic material has been partially pressed into
shape the brick, tile, or other form has been removed from the mould to allow the air
to escape prior to the final pressing operation taking place thus entailing additional
labour, expense and handling of the bricks or other forms.
Now my invention consists in mounting in suitable bearings on the same framework
and in juxta position two cylinders having any required number of moulds formed
in or on their peripheries and so arranged that after the clay or other material has
been fed into and partially pressed in the mould in one cylinder it is removed by
the machinery into a mould in the second cylinder to undergo the final pressing
operation; and the moulds in the first cylinder are so arranged that whilst one is
being filled with clay or other material, a partially pressed form in another mould is
being discharged into a mould in the second cylinder, and in like manner, whilst one
of the moulds of the second cylinder is receiving a partially pressed form, another
one is discharging its contents onto the delivery table. To accomplish this I arrange
the cylinders with their peripheries almost touching each other, and capable of being
intermittently rotated in the same or opposite directions by any convenient means,
but I prefer to gear them so as to revolve in opposite directions. The clay or other
plastic or semi-plastic material is fed into the mould of one cylinder in the ordinary
manner, after which the cylinder is rotated so as to bring the mould in a line with
the presser or plunger for the preliminary or partial pressing operation, when this

page_text: has taken place the cylinder is again rotated until the mould in the first cylinder is
opposite to or in a line with one in the second cylinder when the form is ejected
from the first cylinder by a suitable plunger into the mould of the second cylinder;
this mould is in turn brought under the plunger or presser of the second cylinder for
the final pressing operation. The second cylinder is then again rotated and the
pressed form delivered onto the delivery table of the machine for removable to the
drying shed or kiln. It will be readily understood that whilst the above described
operation is taking place, as each mould in the first cylinder is brought round in turn
opposite the feeding box it is filled with clay or other material ready to undergo the
pressing operations. I by preference though not necessarily so, arrange the pressers
or plungers to act on opposite sides of their respective cylinders, that is to say, the
presser or plunger of one cylinder is placed below it, whilst that for the other cylinder
is placed above it. These plungers or pressers may be similar to those ordinarily
employed on rotating cylinder machines, and may be brought into action or operated
by levers, cranks, or any other convenient means from any moving part of the
machine.
Other parts of the machine may be of ordinary construction.
Improvements in or relating to Machinery or Apparatus Employed
in the Manufacture of Bricks, Tiles, or other Forms.
I, RICHARD SCHOLEFIELD, of the Burley Vale Mills, Kirkstall Road, Leeds, in the
County of York, 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:
This invention relates to that class of machinery or apparatus employed in the
manufacture of bricks, tiles or other forms, in which clay, plastic or semi-plastic
material is moulded and pressed into shape in a rotary cylinder.
Hitherto in machinery of this description only one cylinder has been employed,
and after the clay or other plastic or semi-plastic material has been partially pressed.
into shape the brick, tile, or other form has been removed from the mould to allow
the air to escape prior to the final pressing operation taking place, thus entailing
additional labour, expense, and handling of the bricks or other forms.

page_text: Now this invention is designed to obviate the extra labour and expense of handling
the bricks or other forms between the two pressing operations, and it consists in
mounting in suitable bearings on the same framework, in juxta position two rotating
cylinders having any required number of moulds formed in or on their peripheries,
and so arranged that after the clay or other material has been fed into and partially
pressed in the mould in one cylinder, it is removed by the machinery into a mould
in the second cylinder to undergo the final pressing operation, and the action of
forcing a partially pressed form out of the first cylinder into a mould of the second,
also has the effect at the same time of ejecting a completely pressed form from
another mould in the second cylinder onto the delivery table of the machine.
And in order that this invention may be more completely understood reference is
given to the accompanying drawings in which Fig: 1, is a side elevation, Fig. 2, a
longitudinal section, and Fig. 3 a plan looking at the top (with hopper removed) of
a machine constructed according to this Invention.
Like parts in all the views are marked with the same letters of reference.
1
"
:
A is the framework of the machine on which are mounted in suitable bearings a, à¹
two cylinders. B, B' having any required number of moulds b, b. formed in or
on their peripheries. In the drawings I have shown four of these moulds in each
cylinder, but this number may be increased or varied as circumstances may require.
Each mould is provided with a plunger 6, 66, of the same, construction and coupled
to a second plunger by a bracket in a similar manner to those described in the
Specifications of the Letters Patents already granted to me for brickmaking and
forming machinery.
C is the hopper into which the material is thrown preparatory to being fed to the
cylinder B. D the sliding feeding box which conveys the material to the mould.
E the connecting rod for imparting a reciprocating motion to the feeding. box from
the crank on the main shaft F. G is the presser to which a reciprocating motion
is also imparted from the crank through connecting rod J and lever H (fulcrumed
at to the suspension rod I. K and L are respectively the driving pulley and spur
gearing through which motion is given to the machine from any convenient source.
All of which parts may be of a similar construction, and arranged to operate in a
manner substantially as described in the several Specifications of Letters Patent that
have been previously granted to me for brickmaking machineryi,
In carrying this Invention into practice the cylinders B, B₁ are arranged with their
peripheries almost touching each other, and are capable of being rotated in the samie
or opposite directions. In the drawings I have shown these cylinders mounted
horizontally and rotated in opposite directions by means of spur gearing M mounted
on journals 626 of the cylinders; whilst on the opposite journal 6 of cylinder B¹ is
a catch plate N to which an intermittent rotary motion' is imparted from the spur
gearing L by 'ineans of a catch hook O. The cylinders may when preferred be
mounted on the framework in other positions than shown in the drawings.
་
'
The material to be operated upon is fed into mould b in the cylinder B from the
hopper by feed box D and partially pressed therein, either by the feed box, or the
cylinder may be rotated so as to bring the mould in line with a plunger for the pre-
liminary pressing operation. This plunger or presser may be arranged in a similar
position and operated in a like manner to that shown at G for the second cylinder B¹.
The moulds in the cylinders are so arranged that as a mould in the first cylinder B is
being filled with clay or other material, a partially pressed brick or other form is by
such filling operation being discharged from another mould in the same cylinder into
a mould in the second cylinder B', and in like manner, by forcing the partially pressed
brick or other form into the second cylinder causes a completely pressed form to be
discharged from another mould in the cylinder B'. It will readily be understood,
that in order to accomplish this operation the four moulds (two in each cylinder) must
be in the same line as shown at Fig. 2. When the material is not partially pressed
by the feed box the cylinders are rotated so as to bring the mould in a line with a
presser as herein before described to undergo the preliminary pressing operation,
when this has taken place the cylinders are again rotated until the mould in cylinder B

page_text: is opposite to or in a line with one in cylinder B¹ when the form is ejected from the
mould in cylinder B (during or by the filling of another mould in the same cylinder)
into a mould in cylinder B-which ejects a completely pressed brick onto the delivery
table of the machine-which mould is in turn brought under the action of the
presser G for the final pressing operation. The cylinders are then again rotated when
the pressed form is ready to be ejected onto the delivery table (at the next filling
operation of mould in cylinder B) of the machine for removal to the drying shed or
kiln. It will be readily understood that whilst the above described operations are
taking place each mould in cylinder B-as it is brought round opposite the feeding
box D is filled with clay or other materials ready to undergo the pressing operations,
also that the air has time to escape during the removal of the form from one cylinder
to the other between the two pressing operations.
I would here remark that in some cases and when preferred the pressers may be
arranged to act on opposite sides of their respective cylinders that is to say,
the pressor
of one cylinder may be placed above it, whilst that for the other cylinder is placed
below it. These pressers may be similar to those ordinarily employed on rotating
cylinder machines, and be brought into operation by levers, cranks, or any other
convenient means from any moving part of the machine.
Other parts of the machine may be of ordinary construction.
Having now particularly described and ascertained the nature of my said Invention
and in what manner the same is to be performed, I declare that what I claim is :-
1. In a machine for making and forming bricks or other forms the means or
apparatus such as herein described whereby as the mould in one cylinder is being filled
with clay or other material the contents of another mould in the same cylinder is being
discharged and forced into the mould of a second cylinder, such forcing operation
also ejecting a completely pressed form from a second or opposite mould in the said
second cylinder, substantially as and for the purposes herein set forth.
2. The arrangement and combination in a machine such as those herein described
for making and forming bricks and other forms, of two rotating cylinders-having
moulds formed therein-mounted on the same framework, and the parts connected
therewith, whereby the material to be operated upon is fed into and partially pressed
into shape in the mould of one cylinder, and afterwards automatically transferred into
a mould in a second cylinder to undergo the final pressing operation, substantially as
herein set forth and illustrated.
3. The arrangement and combination of the various parts forming the machine as a
whole, substantially as and for the purposes herein set forth.
Dated this Twenty second day of July 1887