Smelting and Analogous Purposes and Machinery therefor.
Year: 1887

page_text: Date of Application, 16th Nov., 1887
Complete Specification Left. 15th Aug., 1888
Complete Specification Accepted, 21st Sept.. 1888
H
Smelting and Analogous Purposes and Machinery therefor.
We, JOHN ARTHUR YEADON, of 4 Albion Place, and ROBERT MIDDLETON, of
Sheepscar Foundry, both of Leeds, in the County of York, and both engineers, do
hereby declare the nature of this invention to be as follows:-
The object of our invention is to provide suitable machinery for our improved
mode of rapidly and cheaply moulding lumps-by preference globular-for the
above purposes; having in view specially the production of balls, of coal dust & other
such fuel, of a suitable size and density for domestic or other use.
or more
We carry out our object somewhat as follows:-We take four discs (three
may be used) preferably of the same diameter, and arrange them at right-angles to
one another so that their four noses (so to speak) meet together under a hopper or
feeding box through which each disc cuts its way, as it were, before their noses
meet. The discs here revolving downwards-are thus capable of being fed with
a stream of materials from the overhead hopper. The noses of these discs are
bevelled off, say into right-angled points, (where four are used) so that they meet
and touch one another; and when doing so they prevent any material from passing
through from the hopper.
We make however in the periphery of each disc, at the same "pitch" or distance
apart, a series of recesses representing say quarter-globe moulds.
The four discs are so placed, connected, and revolved, by suitable gearing, that each
presents a recess to the others as they meet on their common horizontal centre line
below the hopper or box. Hence, if by gravity, or by the additional use of blades,
paddles, or other assisting gear, the material in the hopper is well and sufficiently
pressed down it follows that the recesses will be filled, and the discs will thus mould,
press, and deliver the "lumps "-say balls-into a trough below. If the globular
shape be chosen the balls will roll away along such inclined ways as may be
arranged.

page_text: The recesses or moulds may take any suitable shape. They need not necessarily be
the same in each disc.
In the hopper feeding arrangements it may prove of importance to push the
material down with a transverse flow across the line of the descending moulds, say
in quick running, so as to ensure their being well filled; or feeding wheels or
rollers may be fitted within the hopper for this purpose.
It may be found desirable to build or fit up the periphery of the discs with a
series of renewable dies.
Suitable water "lubricating" arrangements may be laid on to each disc just as
they enter the hopper; or each may run through a water trough at its foot;
this in order that the balls may the more readily fall from the recesses as they
open below.
If ovoids or other irregular shapes demand different angles on the moulding
edges of the discs (what we have termed their noses) we make such angles to suit
the particular form that may be in question.
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page_text: Smelting and Analogous Purposes and Machinery therefor.
We, JOHN ARTHUR YEADON, of 4 Albion Place, and ROBERT MIDDLETON, of
Sheepscar Foundry, both of Leeds, in the County of York and both engineers, 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:-
The object of our invention is to provide suitable machinery for our improved
mode of rapidly & cheaply moulding lumps-by preference globular-for the above
purposes; having in view specially the production of balls, of coal dust and other
such fuel, of a suitable size and density for domestic or other use.
Our mode of manufacture may be carried out as follows:-We take a number of
discs of suitable diameter and breadth-three, four, or more, may be used-and
arrange them, at suitable angles one with the other, so that their noses or edges
meet and run together under a central hopper or feeding spout. The discs are
preferably of the same diameter and are arranged vertically; and at the central
feeding point are all running downwards so that they are ready to deal with a stream
of suitable material fed from above.
"
On the edges of the discs are a series of recesses suitably scooped according to
the shape of the "lump" which it is desired to collectively produce. The recesses
are laid out, or pitched," at equal distances from one another on the periphery of
each disc. The group of discs are then so relatively connected, arranged, and
revolved that each disc presents its recess to the others when they meet on their
common horizontal centre line under the feeding hopper or spout. Thus the
materials, passing thro' from above, are moulded and delivered below.
In order more fully to explain ourselves we have annexed a drawing on which
fig. 1 is an elevation of a four-disc machine constructed to carry our mode of con-
glomerating into effect; fig. 2 is a plan corresponding with fig. 1. The same letters
refer to the same parts in all the figs.
The four discs A1, A2, A3, A4, are arranged at right angles to one another and
their edges are mitred or bevelled off where they meet under the Hopper or
spout, B.
No attempt is made to show the series of recesses on the edges of the discs in
figs. 1 & 2 but in fig. 3, which is a sectional elevation, and in fig. 4, the corre-
sponding plan, they are shown on a larger scale. In fig. 3 the near dise A is
removed so as to show the other three more clearly.
The recessess here depicted are for making globular lumps, and the mode in which
the discs enter the funnel of the hopper is shown-two different funnel shapes being
shown, one on the right, and one on the left-we do not bind ourselves to any
particular shape.
Fig. 5 is a side elevation-corresponding with fig. 3-of a disc for making
globular lumps.
In fig. 4, which is a sectional plan on the horizontal centre line, the way in which
the four discs collectively mould the globe is clearly shown.
Fig. 7 shows the mode of moulding a globe with three discs A', A² and A³. This
figure is also a plan (sectional) on the horizontal centre line, and also shows the
lower portion of the hopper funnel B.

page_text: In fig. 2, the position of the Hopper B is shown by the dotted circular formation-
The materials in the hopper may, in addition to the force of gravity, be forced down
in any convenient manner to ensure the recesses being thoroughly filled; for
instance pugging knives may work in the hopper, or other such assisting blades,
paddles, rollers, &c., and these may be arranged to give a flow across the line of the
recesses to ensure these being filled.
Either by itself, or in addition to the external hopper, an internal feeding tube B¹
may be used, as shown in fig. 6. The diameter of this tube, internally, may be as
much larger than the globular form required as practice may point out as suitable for
the compression afterwards to be given-If the recesses are arranged close to one
another, as in fig. 6, and a column of well pressed materials be led down to the lowest
possible points, and the downward feed be arranged to suit the speed of the discs,
then the discs & the edges of their recesses should have little else to do than to cut
up & separate the descending column into balls, squeeze them, and deliver them
below.
Globular "lumps" when delivered below may be made to fall into spouts and thus
they will roll themselves away along any suitable inclines.
The recesses or moulds may be of any suitable shape, and they need not necessarily
be similar in each disc-so long as the resulting "lump" is what is required.
It is desirable to affix the recesses or moulds on to the discs in such a manner
as to permit an easy renewal ;-as wear & tear must make these parts soon
give out.
Figs. 1 & 2 show an arrangement of bevelled wheels, shafts, spur wheel and
pinion, by which the discs may be driven-Any suitable means of driving however
may be arranged, for the proper adjustment of the recesses or moulds, and for the
relief of the axles from torsion, it is advisable to make projections on the bevelled
wheels interlock with similar projections on the sides of the discs, and to arrange
that these shall be easily fitted so that all the recesses shall meet as desired.
Suitable water "lubricating" arrangements must be laid on to each disc and into
the recesses, say just as they enter the hopper; or each disc may run through a
water trough at its foot: This in order that the "lumps" may more readily fall
from out of the recesses as they open and recede from one another below.
If ovoids or other irregular shapes make it advisable to vary the angles of the
working edges of the discs this may easily be done, but in all cases it is desirable to
make the abutting angles roll & not grind one against the other.
The arrows denote the directions of revolutions.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is:
1. The mode of moulding "lumps" of fuel or materials for sinelting and analogous
purposes by passing such materials through a group of three, four, or more, discs
whose edges are furnished with the necessary moulding recesses which, collectively,
meeting at the centre, produce the shape required; which mode of moulding is
shown carried into effect in and by the machinery and apparatus described herein
and shown on the drawing.
2. The machinery and apparatus for moulding "lumps" substantially as described
herein and shown on the drawing, with the object and for the purpose set forth.
Dated this Fourteenth day of August 1888.