Improved Mechanism-for Ejecting or Removing. Furnace. Ashes or other Substances, mainly applicable for Use on Board Ship.
Year: 1896

page_text: Date of Application, 27th Mar., 1896
Complete Specification Left, 13th Oct., 1896-Accepted, 28th Nov., 1895
PROVISIONAL SPECIFICATION.
Improved Mechanism-for Ejecting or Removing. Furnace. Ashes or
other Substances, mainly applicable for Use on Board Ship.
I, JAMES PATTERSON, of 2 Mona Terrace, Gourock, in.the.County of Renfrew,
Scotland, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to improved mechanism for ejecting or removing furnace
ashes or other substances and it is principally applicable for use on board ship.
It consists broadly in the use of a centrifugal pump the inlet to which is connected
to a suitable hopper, which in its turn is connected at or near its bottom with a
suitable water supply, while the discharge of the pump is carried to the point at
which the ashes or other substances are to be ejected.
Both the water supply passage and the discharge passage are fitted with suitable
valves for closing or opening same to any desired extent, for the purposes of
regulation.
The inlet passage of the pump is also connected to a pipe by means of which the
pump can be employed when necessary for discharging water (such as bilge water)
from the interior of the ship, such pipe being also fitted with a valve for closing
same when not required to be used.
As applied to a ship or vessel a pipe or passage is arranged communicating with
the water outside the vessel and also with the hopper above referred to, and the
discharge passage from the pump passes to the outside of the vessel either above
or below the water line, an automatic valve being arranged. in such passage to
prevent the ingress of water through, same.
When the apparatus is intended to be used for the purpose of ejecting ashes or
other solid materials the operation is as follows:-
The valve in the pipe intended for use when the apparatus is to be employed for
ejecting water from the interior of the vessel is first closed, and the valves of the
pipe leading to the hopper for the purpose of supplying water thereto and also the
valve in the discharge passage from the pump are opened to the desired extent.
The ashes to be ejected are then placed in the hopper and the pump driven by any
suitable motor, whereby water is drawn into the hopper and mingling with the
ashes holds same in suspension so that they can pass with the water into the pump
casing, whence they are driven out through the discharge orifice and so ejected at
the point desired.
The pump spindle may be extended so as to project into the space below the
hopper, where it may be fitted with a screw or other means for agitating the ashes
or other substances to be ejected so as to assist in causing same. to mix intimately
with the water, and to prevent the agglomeration of such substances, and also serve
to assist in feeding or advancing such substances towards the pump inlet. Or a
pair of crushing. rollers may be mounted to revolve in the space beneath the
hopper, same being preferably driven by worm gearing from the continuation of
pump spindle.
the
When the apparatus is to be used for ejecting water from inside the vessel the
hopper is closed air-tight by a cover which can be secured to the top thereof and
the valve of the water inlet passage to such hopper is closed while the valve in the

page_text: suction pipe for drawing off water from inside the vessel is opened, and the pump
can then be used for ejecting water through the discharge passage.
Dated this 27th day of March 1896.
ALLISON BROS.,
Agents for the Applicant.
Improved Mechanism for Ejecting or Removing, Furnace Ashes or
other Substances, mainly applicable for Use on Board Ship.
I, JAMES PATTERSON, of 2 Moua Terrace, Gourock, in the County of Renfrew,
Scotland, Engineer, 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 :-
This invention relates to improved mechanism for ejecting or removing furnace
ashes or other substances and it is principally applicable for use on board ship.
It consists in the use of a centrifugal pump the inlet to which is connected to a
suitable hopper, which in its turn is connected at or near its bottom with a suitable
water supply, while the discharge of the pump is carried to the point at which the
ashes or other substances are to be ejected.
Both the water supply passage and the discharge passage are fitted with suitable
valves for closing or opening same to any desired extent, for the purposes of
regulation.
The inlet passage of the pump is also connected to a pipe by means of which
the pump can be employed when necessary for discharging water (such as bilge
water) from the interior of the ship, such pipe being also fitted with a valve for
closing same when not required to be used.
As applied to a ship or vessel a pipe or passage is arranged communicating with
the water outside the vessel or with any other suitable water supply inside the
vessel and also with the hopper above referred to, and the discharge passage from
the pump passes to the outside of the vessel either above or below the water line,
an automatic non-return valve being arranged in such passage to prevent the
ingress of water through same.
Means are provided for agitating the ashes and if necessary crushing same so
as to cause them to become intimately mixed with the water before they enter the
pump.
When the apparatus is intended to be used for the purpose of ejecting ashes or
other solid materials the operation is as follows:-
The valve in the pipe intended for use when the apparatus is employed for
ejecting water from the interior of the vessel is first closed, and the valves of the
pipe leading to the hopper for the purpose of supplying water thereto and also the
valve in the discharge passage from the pump are opened to the desired extent.
The ashes to be ejected are then placed in the hopper and the pump driven by any
suitable motor, whereby water is drawn into the hopper and mingling with the
ashes holds same in suspension so that they can pass with the water into the pump
casing, whence they are driven out through the discharge orifice and so ejected at
the point desired.
The pump spindle may be extended so as to project into the space below the
hopper, where it may be fitted with a screw or other means for agitating the ashes
or other substances to be ejected so as to assist in causing same to mix intimately
with the water, and to prevent the agglomeration of such substances, and also serve
to assist in feeding or advancing such substances towards the pump inlet. Or a
pair of crushing rollers may be mounted to revolve in the space beneath the

page_text: hopper, same being preferably driven by worm gearing from the continuation of
the pump spindle.
When the apparatus is to be used for ejecting water from inside the vessel the
hopper is closed air-tight by a cover which can be secured to the top thereof and
the valve of the water inlet passage to such hopper is closed while the valve in the
suction pipe for drawing off water from inside the vessel is opened, and the pump
can then be used for ejecting water through the discharge passage.
But in order that my invention may be fully understood I will now proceed to
describe same by the aid of the accompanying drawings, in which
Fig. 1 shows a side elevation of my improved ash ejector as applied to a ship or
vessel, and
Fig. 2 is an end elevation of same.
Figure 3 is a detail view of the pump and the hopper to receive the ashes or
other material to be ejected and shows the passage connecting such hopper to the
inlet to the pump provided with a worm or screw for agitating the ashes or material
and causing same to become intimately mixed with the water and advancing same
to the inlet orifice of the pump.
Fig. 4 is a side elevation and Fig. 5 an end elevation of a slightly modified
arrangement in which the mixing and advancing screw is mounted directly in the
bottom of the hopper.
Fig. 6 is a side elevation and Fig. 7 a plan view of a modification in which the
mixing and advancing screw is replaced by a pair of crushing rollers arranged
horizontally side by side.
Fig. 8 is a side elevation partly in section and Fig. 9 a transverse section of a
further modification in which the crushing rollers are arranged one above the
other.
Referring to the arrangement shown in Figs. 1, 2 and 3, A is a motor of any
suitable construction for driving the centrifugal pump B, the inlet orifice of which
is connected by the passage C to the bottom of the hopper or receptacle D in which
the ashes or other material to be ejected are placed, while the discharge orifice of
such pump is connected to a pipe or passage E which opens out at any point where
it is desired to deliver the material, which may be either above or below the level
of the water outside the ship or vessel.
The bottom of the hopper or receptacle D is also connected to a suitable water
supply, as by the pipe leading to the outside of the vessel below the water line
or such pipe may be connected to any suitable water supply inside the vessel.
The discharge pipe E is fitted with a valve E' for regulating the discharge, and
also with an automatic non-return valve E at its upper end for preventing the
ingress of water through such pipe.
The pipe C leading from the bottom of the hopper D to the inlet orifice of the
pump B is provided with a valve C¹ for regulating the inlet to the pump, and the
pipe F leading from the bottom of the hopper D to the water supply is also
provided with a valve F¹ for regulating the supply of water to the hopper.
Suitable ineans are provided for intimately mixing the material to be ejected
with the water before they enter the pump B, and for this purpose the pump
spindle B' may (as shown in Fig. 3) be extended within the pipe or passage C
connecting the inlet orifice of the pump with the bottom of hopper D, and provided
with a worm or screw G which may also serve to assist in facilitating the delivery
of the material to the pump.
In the modification shown in Figs. 4 and 5 the worm or screw G is arranged in
the bottom of the hopper D itself, which is connected directly to the inlet orifice
of the pump B.
In the modification shown in Figs. 6 and 7 the worm or screw G is replaced by
a pair of crushing rollers G, G, arranged side by side beneath the hopper D and
actuated to revolve in opposite directions by any suitable means, such as by the
right and left handed worms H, H', gearing respectively with worm wheels I, I,
mounted on the spindles of the rollers G', G.

page_text: In the modification shown in Figs. 8 and 9, the crushing rollers G', Gare
arranged one somewhat above the other instead of side by side, and the material is
directed from hopper D between them, the roller G' being mounted directly on the
spindle of pump B and the spindles of the two rollers being geared together by
wheels. 12, 13.
So as to enable the pump to be used for ejecting water from inside the vessel
the hopper D is fitted with a cover D', which may be closed air-tight, and a suction
pipe K is provided leading from the point from-which the water is to be removed
to the inlet opening of pump B, a valve K' being arranged in such pipe so as to
close same when not required to be used.
For ejecting ashes the valve K¹ in pipe K is first closed, and the valve F¹ of the
water supply F, valve C' of the pipe C leading to the inlet of the pump B, and
valve E of the discharge pipe E from the pump, are all three opened to the required
extent, so that, when the pump is actuated, the material placed in hopper D will
be carried, together with the water with which it has been mixed by the action of
the worm or screw G, or of the crushing rollers G1, G2, into the pump B through
the pipe or passage C, and discharged through the pipe E.
When required to use the pump B for discharging water from the inside of the
ship or vessel, the hopper D is closed air-tight by its cover D', the valve F in the
water supply pipe F is closed, while valve C in pipe C and valve Ein discharge
pipe E are allowed to remain open, and the valve K of pipe K is also opened, so
that by the action of the pump the water to be ejected will pass by pipes K and.C
to the pump and be discharged through pipe E.
Having now. particularly described and ascertained. the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that .what I
claim is
In apparatus for ejecting or removing ashes or other materials
1. The combination of a centrifugal pump the inlet orifice of which is connected
to a hopper or receptacle in which the material to be removed is deposited, and
which hopper is also connected to a suitable water supply, a screw or worm
arranged in the connection between the hopper and the inlet orifice of the pump,
and a discharge passage leading from the outlet orifice of the pump to the point
at which the material is to be delivered, all substantially as and for the purpose
specified.
2. The combination of a centrifugal pump the inlet orifice of which is connected
to a hopper or receptacle in which the material to be removed is deposited, and
which hopper is also connected to a suitable water supply, crushing rollers arranged
either side by side or one somewhat above the other in the connection between the
hopper and the inlet orifice of the pump, and caused to revolve in opposite directions,
and a discharge passage leading from the outlet orifice of the pump to the point at
which the material is to be delivered, all substantially as and for the purpose
specified.
3. The combination with either of the arrangements claimed in the preceding
claims of a suction pipe leading to the inlet orifice of the pump from any point
from which it is required to remove water, and of suitable valves for opening and
closing or regulating the different pipes or passages to and from the pump, all
substantially as and for the purpose specified.
Dated this 7th day of October 1896.
ALLISON BROS.,
Agents for the Applicant.