Improvements in Making "Briquettes" or Blocks of Compressed Fuel.
Year: 1888

page_text: Improvements in Making "Briquettes" or Blocks of Compressed
Fuel.
I ROBERT AUTON of Birtley in the County of Durbam, Engineer, do hereby declare
the nature of this invention to be as follows :—
".
In the manufacture of compressed blocks or "briquettes" of compound, or what is
known as patent, fuel the drying of the coal after being washed, so that it
may reach
the mixing mill, and thence the press, in a sufficiently dry condition, is a process
involving much time and expensive plant.
"
briquette
This invention relates to improvements in the moulds and in the plunger "dies" by
which the blocks or "briquettes" are pressed into the moulds, in such a manner that
the water is expelled from the fuel in the pressing of the block or
"which
is delivered from the mould nearly free from moisture even if formed of coal that,
after being washed, has been only very partially dried.
This is effected by forming the moulds and the plunger "dies" (or either of them)
with a number of small holes in their sides (or some of them) and in their faces next
the fuel, through which the water in the fuel finds a free exit out of the mould as
the blocks or briquettes" are pressed and they leave the press as free from moisture
as if the coal had been dried by any of the slow and costly apparatus generally
used.
፡፡
These small holes in the face of the plunger "dies" will be preferably arranged to
open into larger holes or recesses in the sides at right angles to those in the face and
beyond the part which enters the mould when the block or "briquette" is completely
pressed to give free exit to the water.
The provision of holes in the moulds and in the plunger dies, or either of them, for
the escape of the water is applicable to all shapes of "briquettes" or blocks which
may either be perforated or solid.
1000

page_text: COMPLETE SPECIFICATION.
t
Improvements in Making "Briquettes" or Blocks of Compressed
Fuel.
I, ROBERT AUTON of Birtley in the county of Durham, Engineer do hereby
aeclare the nature of said invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
In the manufacture of compressed blocks or "briquettes" of compound, or what is
known as "patent," fuel, the drying of the coal after being washed, so that it may
reach the mixing mill, and thence the press, in a sufficiently dry condition, is a
process involving much time and expensive plant.
"
This invention relates to improvements in the moulds and in the plunger "dies," by
which the blocks or "briquettes" are pressed into the moulds in such a manner that
the water is expelled from the fuel in the pressing of the block or "briquette which
is delivered from the mould nearly free from moisture, even if formed of coal that
after being washed has been only very partially dried.
This is offected by forming the moulds, the mould plate, in which they are fixed
and the plunger "dies," or "either of them with a number of small holes in their
sides (or some of them) and in their faces next the fuel, through which the water in
the fuel finds a free exit out of the mould as the blocks or "briquettes" are pressed and
they leave the press as free from moisture as if the coal had been dried by any of the
slow and costly apparatus generally used.
These small holes in the face of the plunger "dies" will be preferably arranged to
open into larger holes or recesses in the sides at right angles to those in the face, and
beyond the part which enters the mould when the block or "briquette" is completely
pressed, to give free oxit to the water. The provision of holes in the moulds of the
mould plate and in the plunger "dies," or either of them, for the escape of the water
is applicable to all shapes of "briquettes or blocks which may either be perforated
or solid.
.
29
DESCRIPTION OF DRAWINGS.
On the accompanying 2 sheets of drawings I illustrate my invention as applied to
-making "briquettes" or blocks 9 inches x 6 ins. x 43 ins. thick the figs. on sheet 1
shewing the perforated mould and the mould plate to one half the actual size
and those on sheet 2. shewing the perforated Die plate of the full actual size.
On sheet 1. fig. 1. shews the mould and mould plate in plan: fig. 2 a section
through the mould plate on line E F of fig. 1 looking in the direction of the arrow:
fig. 3 a face view on line CD of fig. 1. and fig. 4a section of the mould plate on
line A B of fig. 1, A is the mould, preferably mado of brass, and fitting into the recess
in the mould plate B by means of lead packing indicated by the double lines on
outside. The ends and sides of the mould are perforated with tapered holes CCC

page_text: ,,
which open into the corresponding tapered holes C₁ CC in the ends and sides of the
mould plate and when the fuel is compressed by the 'die' plate (shewn on sheet 2) the
water in the fuel is expelled through these holes, as also through holes in the die plate,
and the "briquette or block leaves the mould in a practically dry state. It will be
seen that the holes are very small in the interior of the mould and increase in size to
their outlets in the mould plate. The dotted line a b on Fig. 3 shews the thickness of
the "briquette" after compression in the mould. On sheet 2 fig. 5 shows a face view
of the Die plate, which is preferably made of brass; Fig. 6. a section through line A B
on fig. 5; fig. 7 an end view of the die plate and fig. a view looking on back of the
plate. D D are holes through which the die plate is bolted to the plunger of the
moulding press and EE are end flanges which, with the bosses F F F abut upon
the face of the pressing plunger. The holes G G G in the body of the Die plate are
very small in the face and increase in size at their outlets at back to give free passage
to the expelled water. The holes G¹ G' G' in the ends of the die plate open into
large cavities outside the depth to which the Die plate enters the mould, as shown on
figs. 6. 7. 8.
Although I have shewn the ends and sides of the moulds, and of the mould plate in
which they are held, as also the Die plate, perforated with round holes which I prefer,
it is obvious that perforations of other shapes may be used also that the extent of
perforation may be varied according to the requirement of the fuel to be compressed,
depending on the quantity of water in it as it is delivered into the moulds.
Having now particularly described and ascertained the nature of said inven-
tion and in what manner the same is to be performed declare that what I
claim is :-
In the manufacture of "briquettes" or blocks of compressed fuel the use of moulds
and dies, or either of them, perforated with holes for the free discharge of the
contained water thus causing the fuel to be delivered from the moulds in a practically
dry state.
dry state.
December 11, 1888.
T. J. DANSON, F.I.P.A.,
Office for Patents,
2, St. Nicholas' Buildings, Newcastle-upon-Tyne,
Agent for Applicant.