Year: 1886

page_text: We JOHN MOBBERLEY and HENRY PERRY both of the Firm of Mobberly and
Perry of the Fire Brick Works Stourbridge in the County of Worcester Fire
Brick Manufacturers do hereby declare the nature of our said Invention and
in what manner the same is to be performed to be particularly described and
ascertained in and by the following statement:-
Our invention has for its object improvements in the manufacture of bricks
which are specially applicable to those known as "Honey Comb Fire Bricks
which are used for the well known Cowpers Patent Stoves by which they may be
manufactured with much greater rapidity than by the old method and with the
greatest accuracy both in general configuration and thickness which is most
important in these bricks.
In order that our invention may be clearly understood and more easily carried
into practice we have appended hereunto a sheet of drawings illustrating our
invention and from which, with the following explanation the invention may be
easily worked.
Figure 1 is a part side elevation and a part sectional elevation of the machine
which forms the brick in its rough state and which may be called the first process
apart from the mixing of the clay.
Figure 2 is an elevation of the right hand end of the machine which would be
properly called the front of the machine.
•
Figure 3 is a cross section of the front part on line A, B, showing the mould for
roughly forming the brick.
Figure 4 is a front elevation of the machine for finishing the brick.
. Figure 5 is an end elevation of Figure 4.
Figure 6 is a sectional plan at C. D looking down upon the finishing mould.
Figure 7 is a single finished brick in plan.
Figure 8 shows a group of the finished bricks brought together which shows the
chambers.
The manufacture is as follows:-The plastic clay is is put into the hopper E and
forced along the tube or circular chamber F by the revolving blades G which are
fixed to the shaft H until it enters the chamber J where it becomes a practically
unbroken mass previous to its formation into the desired shape by passing through
the front part or die K. The shape of the brick is formed by the die K which
Dover &11

page_text: is composed of the outer wood blocks X fixed to the inside of the end of the
chamber and the wood or other core L which is supported in the centre by the
cross bar and the rod the whole of the wood being covered with fustian
canvass and having the groove m¹ for the perfect distribution of the water supplies
from the tundish or other vessel M. As the clay passes througth the die it is
roughly moulded into the required shape which is shewn in Figure 7 and when
sufficient length has been pressed out of the die on to the rest P the wires Q and R
which are set to the proper distances apart for cutting the thickness or depth of
one brick are drawn up by the handle q¹ on the frame q* which hinges at q³ and
the brick is then taken away while another length is being forced out which are
afterwards cut off by the wires Q and R being pressed down again into their
former position ready for cutting off the next brick as before described and so on.
The clay is being constantly forced out but the quickness with which the wire is
drawn up or forced down when cutting off the length forins a sufficiently square end
to the brick for this part of the process as any inequalities are corrected by the
subsequent part of the process. These roughly formed pieces are next taken to
the press as shewn by Figures 4, 5 and 6 which may be operated by the screw S
or other equivalent action and turned either by a horizontal fly wheel or weighted
arms thereby depressing the plate T which is fixed at the bottom of the said
screw. This plate is connected by means of the vertical rods t t 13 and t with the
rods www³ and w' which support another plate U this plate slides inside the
finishing mould V and upon which the brick rests until the plate T descends and
forces it into the mould the under plate U travelling with it and forcing it out
again when the motion of the screw S is reversed the brick then appearing in a
perfectly true and smooth state. The finishing mould V is formed by the iron
pieces v¹, v, &c being screwed inside the outer case and small filling in pieces Y
are provided so that the outer case of the die V would allow of a smaller or larger
size or a variety of shapes in the brick to be pressed.
In the case of the machine for the first process we may cut off sufficient lengths
of clay to make 3 or more bricks and afterwards divide each length into the
respective number of bricks in a similar way to that before described but by
several wires set paralell to each other, or in place of the cross bar for supporting
the wooden core simply fitting into notches each side we may fix it across an iron
ring which would just fit in a groove in the chamber J and thereby hold the core
quite rigid and means for adjusting the central core may be provided in conjunction
therewith.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is,
. The improvements in the manufacture of bricks whereby the clay after proper
preparation is forced through the die K which is provided with the core L and
afterwards completed in the finishing mould V in the manner and for the purpose
substantially as herein set forth.