Improvements in Machinery and Apparatus for Manufacturing Perforated Blocks or Briquettes of Fuel or Materials for Smelting or Analogous Purposes.
Year: 1887

page_text: Date of Application, 9th Nov., 1887
Complete Specification Left, 8th Aug., 1888
Complete Specification Accepted, 14th Sept., 1888
Improvements in Machinery and Apparatus for Manufacturing
Perforated Blocks or Briquettes of Fuel or Materials for Smelting
or Analogous Purposes.
We, JOHN ARTHUR YEADON, of 4 Albion Place, Leeds, in the County of York,
and ROBERT MIDDLETON, of Sheepscar Foundry, Leeds, aforesaid, both engineers,
do hereby declare the nature of this invention to be as follows:-—
The object of our invention is to provide machinery and appliances for manufacturing
our patented perforated blocks and briquettes-which have all their otherwise sharp
external corners removed whilst under pressure-as described in our Patent
No. 1134, 1887. The same machinery and appliances are nevertheless to be available
for our perforating of ordinary blocks.
We carry out our object, first, by means of a machine fitted with a revolving-
cylinder, around the periphery of which the mouths of the moulds are arranged.
Secondly-by means of a revolving vertical mould-plate as shown in our patent
No. 13064, 1885, whether arranged to receive pressure from one or both sides.
Thirdly by means of a revolving mould-plate whose moulds are charged, pressed, and
discharged, on one and the same side only..
(1) The revolving mould-cylinder machine may be arranged as follows; After the
manner of our patent No. 3581, 1886, our vertical heater is supported on the top of
the two side frames and it delivers its material into our pugmill and charging box
below. The charging-ram pushes the materials out of the lowest part of this box into
the open mould then facing it, say, horizontally. This mould may be one of a series
of, say, four, arranged in opposite pairs, at quarter-centres, round the periphery of
the revolving mould-cylinder. When the cylinder takes its next quarter turn the
material in the mould last charged is found facing upwards towards the pressing-ram
which may be worked by a toggle lever arrangement in connection with the main
lever of the machine. This main-lever has a central fulcrum and its shorter arm
extends upwards and connects to the toggle last mentioned; its lower arm ends in a
slotted link in which a die, mounted on the crank of the main shaft, rides. This

page_text: crank shaft is geared up by suitable wheels to the belt drums, and is arranged to so
revolve that the die and the slotted link give a slow-forward and a quick-return
motion both to the pressing and charging rams. The latter is connected with the
lower arm of the main-lever. The charging-ram and the pressing-ram are both
provided with yielding springs, for safety, and also for the regulation of the quantity
and density of the materials fed and of the compression given to them. These latter
arrangements are after the manner of our patents No. 5473, 1884 and 13067, 1885.
The fly-wheel may also be fitted with our safety apparatus described in our patent
No. 1013, 1887. The mould-cylinder, which is moved by any suitable gear, has
sliding plates fitted into its moulds, and these plates are so connected in the opposite
pairs of moulds that the incoming material on the charging side expels the pressed
briquette on the other. In our patent No. 1134, 1887, we have fully described how
we fix perforating studs in the base of a mould and how a sliding-plate both expels
the briquette and cleans the mould and pins. By attaching such an arrangement
to this mould-cylinder and connecting the opposite pairs of sliding-plates our
arrangement is completed. One advantage of this plan of machine is that it need
not be an expensive one. The mould-cylinder may be of any diameter and its width
may be made to suit moulds arranged side by side. Supports may be used to assist
the cylinder to take the thrust of the pressing-ram.
(2) In our revolving vertical mould-plate arrangement, in which we press from
both sides simultaneously, a base-plate may be arranged in each mould with the
perforating studs fixed in and upon it, fitted with a sliding-plate as before-mentioned.
The base-plate is arranged to yield, the amount required, before the pressing ram on
its side, whilst the ram on the opposite side has holes in its die to enable it to clear
the perforating studs. After receiving the double pressure the briquette is carried
round to the expelling ram which has certain projecting pins on its face for which
holes are prepared in the base-plate. In this way the ram is enabled to reach the
sliding-plate and so expel the briquette. The incoming material may be used to push
the sliding-plate back again.
In some cases punches may be attached to each of the cupping dies as described
and shown in patent No. 1134, 1887 in connection with a vertical revolving
mould-plate.
(3) When it is not required to press on both sides a modification of the base-plate
and its perforating studs and sliding-plate are arranged in each mould, as last
described. The expelling ram can be more simply arranged in this latter case, and a
modification of our revolving vertical mould-plate arrangement could be applied to
complete the machine. In these latter arrangements the expelling ram has to work
from the opposite side of the mould-plate to that on which the charging is done.
Dated this Eighth day of November 1887

page_text: Improvements in Machinery and Apparatus for Manufacturing
Perforated Blocks or Briquettes of Fuel or Materials for Smelting
or Analogous Purposes.
We, JOHN ARTHUR YEADON, of 4 Albion Place, Leeds, in the County of York,
and ROBERT MIDDLETON, of Sheepscar Foundry, Leeds, aforesaid, 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 machinery and appliances for manufacturing
our patented perforated blocks and briquettes-which have all their otherwise sharp
external corners removed whilst under pressure-as described in our Patent
No. 1134, 1887. The same machinery and appliances are nevertheless to be available
for our perforating ordinary blocks.
We carry out our object, first, by means of a machine fitted with a revolving
cylinder, around the periphery of which the mouths of the moulds are arranged.
Secondly, by means of a revolving vertical mould-plate as shown in our patent
No. 13064, 1885, whether arranged to receive pressure from one or both sides.
Thirdly, by means of a revolving mould-plate whose moulds are charged, pressed, and
discharged on one and the same side only.
In order to fully explain ourselves we have annexed two sheets of drawings. On
Sheet 1, fig. 1 is a Side Sectional Elevation of the general arrangement of the
Revolving inould-cylinder machine; and fig. 2 is an enlarged section thro' the mould-
cylinder.
(1) The machine may be arranged as follows; After the manner of our
Patent 3581-86, our vertical heater A is supported on the top of the two side-
frames B (the section shows the far frame) and it delivers its material into our pug-
mill and charging box C, by any suitable spout (not shown). The charging ram D
pushes the materials out of the lower part C¹ into the open mould E¹ then facing it,
say, horizontally. This mould may be one of a series, (four are shown) arranged in
opposite pairs, at quarter centres, round the periphery of the cylinder E.. When the
cylinder takes its next quarter turn, (which it may be made to do by any convenient
gear, say by a pull-over ratchet arrangement), the material last charged will face
upwards to the pressing ram, G, which may be worked by a toggle-lever arrange-
ment H, H and H2, in connection with the main lever J. The lever J has a fulcrum
at J2 and its shorter arm J¹ extends upwards and connects with the toggle-rod H: and
its lower arm J³ ends in a slotted link in which a die K¹, mounted on the main
cranked-shaft K, rides. This main shaft is geared by suitable wheels, to the driving
drums and is revolved so that the die & slotted link give a slow forward and quick
return motion both to the pressing and the charging rams-See the arrow. The
latter, D is connected with the lower arm J³ of the main lever. These rams are both
provided with yielding springs-see drawing-for safety, and also for the regulation
of the quantity and density of the materials fed, and of the compression given to

page_text: them. These latter yielding arrangements are after the manner of our Patents 5473
-1884 and 13067-1885. The fly-wheel may also be fitted with our safety apparatus
Patent No. 1013-1887.
Reverting to the mould-cylinder :-Sliding plates are fitted into each mould and
these plates are so connected in the opposite pairs of moulds that the incoming
material on the charging side expels the finished briquette on the other-say, on to a
receiving table at L. In our Patent 1134, 1887-we have fully described how we fix
perforating studs in the base of a mould and how a sliding plate both expels the
briquette and cleans the mould and pins. By attaching such an arrangement to this
mould-cylinder and connecting the opposite pairs of sliding plates our arrangement is
completed. This is clearly shown in fig. 2, where bbb &c. are studs for forming
perforations fitted in an independent fixed base-plate at the bottoms of the moulds.
The sliding plates e, e, have cupped faces and are connected in pairs; those in E¹
and E3 by the rods and f2, and those in E2 and E4, by rods f³ and ft. The face of
the pressing ram G must also be cupped and have holes to receive the ends of the
perforating studs. One advantage of this plan of machine is that it need not be an
expensive one. The mould-cylinder E may be of any diameter and its width may be
made to suit one, two, or more moulds sunk side by side. Supports may be used, if
desirable, to enable the cylinder to resist the downward pressure of the pressing rams.
(2) On sheet 2-fig. 3 shows a section (transverse) thro' a mould in our Vertical
Revolving Mould-plate; P and P2 being the rams advancing to give the double
pressure. Fig. 4 is a similar section showing how a briquette is expelled from the
same plate by a ram Q fitted with studs Q for that purpose. In fig. 3 X X is the
axis. Referring to fig. 3. In our Revolving Vertical Mould-plate a base plate, d, is
arranged in each mould with the studs, b, fitted thereon-and further fitted in each
mould is the cupped sliding plate, e. Instead of the base plate being fixed it is
allowed a space in which it can yield before the flat-faced pressing ram P¹, whilst the
ram P2 on the opposite side is cupped and has holes to clear the ends of the
perforating pins.
After receiving the double pressure, given simultaneously, the briquette is carried
round in the mould-table and stopped opposite the expelling ram. This ram, see fig. 4,
has certain projecting studs Q on its face for which holes are prepared in each of the
base-plates By this means it is enabled to reach the backs of the sliding-plates and
so expel the briquettes in turn. In fig. 4 the base-plate is pushed forward to the full
extent of its yielding-space, and the briquette is being pushed out as shown. When
the empty mould travels round to the front of the charging ram the incoming
materials will push both the sliding-plate and the base-plate back to their original
places as in fig. 3.
The expelling ram must necessarily discharge the briquettes on the filling-side, and
here they would require to be dealt with-Preferably by being discharged into a spout
or onto a travelling belt.
In some cases punches may be attached to the cupping-dies which will thus pierce
holes in the materials in an ordinary mould as described and shown in patent
No. 1134, '87 in connection with a vertical revolving mould-plate.
(3) When it is not required to press the briquettes on both sides a fixed base-plate,
carrying the perforating studs and a sliding plate, is arranged in each mould of any
revolving mould plate, say, as shown in fig. 5 which is a transverse section thro' such
The
a mould. The special expelling ram with pins may also be used in this case.
expelling must necessarily be towards the charging side of the plate. A modification
of our machine for double pressing could be arranged where it was proposed to use
a vertical mouldplate and a re-arrangement of the same might be made to suit an
horizontal table.
Referring again to fig. 1. A roller or other equivalent may be fixed at M in order to
compel any projecting cupping-plate to return within the radius of the cylinder and
so avoid the possibility of fouling at the mouth piece at C².
The base plate, d, in figs. 3 & 4 when the mould is being filled, is resting against a
stop-plate-which prevents its being pushed back out of the plate.

page_text: 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 Machine with Revolving-Mould-cylinder, arranged, constructed, and
operated, substantially as described and shown, when used for making perforated
briquettes with the external corners rounded off.
2. The Machine with Revolving-Mould-Cylinder arranged, constructed, and
operated, substantially as described and shown, when used for making perforated
briquettes with the corners square or some square and some rounded off.
3. The appliances partly set out in figs. 3 and 4, when used for making perforated
briquettes with their external corners rounded off whilst under pressure in our
Revolving-Vertical-Mould-plate machine-substantially as described and shown.
4. The appliances partly set out in fig. 5 for making perforated briquettes with
their external corners rounded off-substantially as described and shown.
Dated this Seventh day of August 1888
JNO. A. YEADON.
ROBT. MIDDLETON.