Improvements in Bunkers and other Receptacles for Coal and other matters in Bulk.
Year: 1892

page_text: Date of Application, 25th Oct., 1892
Complete Specification Left, 3rd Nov., 1892-Accepted, 17th Dec., 1892
PROVISIONAL SPECIFICATION.
Improvements in Bunkers and other Receptacles for Coal and other
matters in Bulk.
I, BOYE CHRISTOPHER THOMAS EDWARD BOYESEN of 12, Montague Place,
Russell Square, London, and of 2, Bridge Street, New York, United States
of America, Merchant, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in bunkers and other receptacles for coal
and other matters in bulk, and has for its object to provide means whereby the
delivery of the contents of the bunker may be effected automatically and in easily
regulated quantities as may be required.
The invention is more particularly applicable to coal bunkers and will be
described with reference thereto, although I would have it understood that I do not
limit myself in this respect.
The bunker is constructed in any suitable manner and is provided with an
inclined floor sloping down from back towards the front, at such an angle that the
coals will flow gently down the same, the slope of the floor being considerably
increased at a short distance from the front, in order that the coals, especially at
the commencement of the delivery from a full bunker, may receive a sufficient
impulse to be discharged, through the doorway next referred to, into a shoot leading
to the point where the coals are required for use, or to a receptacle to be filled
therewith. Or the floor may, in some cases, extend from front to back at the same
gradient. At the lower part of the front wall of the bunker is an outlet extending
from side to side of the bunker but only for a part of its height from the floor
upwards, the said outlet being closed by a sliding door movable up and down in
grooves and so suspended by serew, chain, or rope gear worked by handing gear
located overhead, or at one side, that it may be raised at either end only or at both
ends simultaneously so as to enable it to be opened more or less gradually or
completely as may be required to regulate the flow of the coal through the outlet.
Furthermore the inside space of the bunker is divided transversely. by one or more
gratings extending from side to side and formed of separately removable bars set
in a forwardly inclined position, their upper forwardly inclined ends resting in
notched bars or racks fixed on top of the bunker and their lower ends being stepped
on the floor of the bunker. These bars, which are preferably made of iron pipe
for the sake of lightness, may be conveniently fixed at their lower ends by fitting
on to knobs screwed to the bunker floor. The bars are set more or less apart,
according to the kind and condition of the coals to be handled, i.e. whether steam
coal or fine coal bituminous or anthracite coal and whether wet or dry stuff as the
ease with which the coals may be obstructed depends on these conditions. The
space between the front row of bars and the outlet is sufficient to contain as much
or more coal as is likely to be required at any one time. The whole of the bars
are placed in position when the bunker is empty, and the filling may be done either
by shooting the coals into the rearmost compartment and letting them find their
way through the gratings towards the front, in which case the bars of the rearmost
row or rows should be set wider apart than those of the front row, or the coal may
be filled into the several compartments separately, except that the front compart-
ment can only be filled through the foremost grating.
In order to discharge the coal from the bunker, the sliding door is raised first
at one end and then at the other so as to discharge the coal from the front com-
partment gradually. In performing this operation, the door is relieved of the
pressure of the bulk of the coals behind the first compartment, owing to the
ru 027

page_text: obstruction offered by the gratings which divide up the bulk of the coal and retard
its advance. When the front compartment has been discharged it is only
necessary to withdraw the bars of the front grating in succession and subsequently
of the second and following gratings, to permit the remainder of the coal to slide
down gradually towards the front in readiness to supply the demand as fast as
it may arise, the flow of the coal continuing only so long as the bars continue to be
removed.
Dated this 25th day of October 1805
B. C. T. E. BOYESEN,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Bunkers and other Receptacles for Coal and other
matters in Bulk.
I, BOYE CHRISTOPHER THOMAS EDWARD BOYESEN of 12, Montague Place,
Russell Square, London, and of 2, Bridge Street, New York, United States
of America, Merchant, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement :-
This invention relates to improvements in bunkers and other receptacles for coal
and other matters in bulk, and has for its object to provide means whereby the
delivery of the contents of the bunker may be effected automatically and in easily
regulated quantities as may be required.
The invention is more particularly applicable to coal bunkers and will be
described with reference thereto, although I would have it understood that I do
not limit myself in this respect.
Reference is to be had to the accompanying drawings, forming part of this
Specification, wherein
Figure 1 is a vertical section from front to back, Figure 2 a plan, and Figure 3 a
front elevation of the bunker, the door being raised.
Figure 4 is a detail view, shewing the mode of fixing the grating bars to the floor
of the bunker.
The same letters of reference denote like parts in all the figures.
The walls A and floor B of the bunker are constructed in any suitable manner
and the floor B slopes down from back towards the front at such an angle that
the coals will flow gently down the same, the slope of the floor being considerably
increased at a short distance from the front, as shewn at B', in order that the coals
especially at the commencement of the delivery from a full bunker may receive a
sufficient impulse to be discharged through the doorway C into a shoot leading to
the point where the coals are required for use or to a receptacle to be filled
therewith. Or the gradient of the floor may in some cases extend from front to
back at the same inclination. The outlet Cis situated at the lower part of the
front wall of the bunker and extends from side to side of the bunker, but only for
a part of its height from the floor upwards, the said outlet being closed by one or
more sliding doors D movable up and down in grooves d and so suspended by screw,
chain, or rope gear worked by handing gear E located overhead or at one side
that the door, if it extend from side to side of the bunker as shewn, may be raised
at either end only or at both ends simultaneously so as to enable it to be opened
more or less gradually or completely as may be required to regulate the flow of
the coal through the outlet C. When the door is of considerable length it would
be supported against the bursting pressure of the coal by one or
more inter-
mediate fixed bars d' and if the width of the bunker be so great that a single door
would be inconvenient to handle, two or more doors of less length may be used

page_text: each capable of sliding in guides and operated by separate handing gear. Further-
more, the inside space of the bunker is divided transversely by one or more
gratings, extending from side to side and formed of bars F set in a forwardly
inclined position, as shewn, their upper ends resting in notched bars or racks
fixed on top of the bunker and their lower ends being stepped on the inclined
floor B of the bunker. These bars F are separately removable (with the exception
of, say, every third or fourth bar which may be fixed) and the removable bars,
which are preferably made of iron pipe for the sake of lightness, may be conveniently
fixed at their lower ends by fitting on to knobs f screwed to the bunker floor, as
shewn in Figure 4. In order that these knobs shall not obstruct the passage of
the coal, a filling piece is fixed to the floor in front of them, as shewn. The
bars are set more or less apart, according to the kind and condition of the coals
to be handled, i.e. whether steam-coal or fine coal, bituminous or anthracite coal,
and whether wet or dry stuff, as the ease with which the coals may be obstructed
depends on these conditions. The space between the front row of bars F and the
outlet C is sufficient to contain as much or more coal as is likely to be required at
any one time. The whole of the bars are placed in position when the bunker is
empty and the filling may be done either by shooting the coals into the rearmost
compartment and letting them find their way through the gratings F, F, towards
the front, in which case the bars of the rearmost row or rows should be set wider
apart than those of the front row, or the coal may be filled into the several
compartments separately.
In order to discharge the coal from the bunker, the sliding door D is raised first
at one end and then at the other so as to discharge the coal from the front
compartment gradually. In performing this operation, the door is relieved of the
pressure of the bulk of the coals behind the first compartiment, owing to the
obstruction offered by the gratings which divide up the bulk of the coal and retard
its advance. When the front compartment has been discharged it is only necessary
to withdraw the bars of the front grating in succession and subsequently of the
second and following gratings to permit the remainder of the coal to slide
down gradually towards the front in readiness to supply the demand as fast as it
may arise the flow of coal continuing only so long as the bars continue to be
removed.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what I
claim is-
A bunker or receptacle for coal and other matters in bulk provided with an
inclined floor and a discharge opening closed by a sliding door or doors, in
combination with inclined grating bars arranged as described so as to divide up
the internal space of the bunker and obstruct the flow of coal to the outlet, the
bars or certain of them being separately removable to permit a regulated flow of
the coal, substantially as specified.
Dated this and day of Novemba 1005
B. C. T. E. BOYESEN,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.
B. C. T. E. BOYESEN,
By A. M. & Wm. Clark,
53, Chancery Lane, London, Chartered Patent Agents.