Measuring Out Oils and other Liquids.
Year: 1888

page_text: Date of Application, 17th Jan., 1888
Complete Specification Left, 17th Oct., 1888.
Complete Specification Accepted, 23rd Nov., 1888
Measuring Out Oils and other Liquids.
.I, GUSTAVUS ADOLPHUS JOHN SCHOTT of Westend Mills, Richmond road Bradford
in the County of York manufacturer do hereby declare the nature of this invention to
be as follows:-
:-
This invention relates more particularly to further improvements in the construction
of a tank, reservoir or apparatus for the storage and distribution of petroleum, oil and
other liquids commercially known as "Richters" Economiser for which Letters
Patent No. 344980 and various subsequent Improvement Patents have been granted;
a portion of such improvements however are also applicable to other vessels used for
similar purposes and the effect of my present improvements is to render them more
useful and applicable to a greater variety of purposes. My first improvement consists
in providing the Economiser with means to prevent oil or other liquid contained
therein congealing or getting thick at low temperatures.
To this end hot water, air or steampipes may be fitted therein, or where it is not
convenient to do so, the requisite heat may be obtained from lighted Gasjets or Oil
lamps placed in recesses or tubular channels, suitably formed in the tank of the
Economiser.
The second of iny present improvements relates to the substitution in the said
Economiser for the pump, hitherto used, of an arrangement for raising the liquid by means
of Cans or Measures attached to an endless chain which is passed over two chainwheels,
one mounted near the bottom of the tank and the other above the surface of the liquid,
and revolves thereon when the shaft of the upper chainwheel is turned. Combined
therewith when desired may be a locking arrangement, which necessitates the use of a
check or token for the purpose of withdrawing the liquid. Such arrangements are
useful for measuring the liquid withdrawn and for affording a control over its with-
drawal.
The locking arrangement consists of a Combination of catches the main one of which,
called the locking catch, prevents the forward movement of the chainwheels & chain
by acting upon a cam fixed upon the driving shaft, until the said locking catch is lifted
out of the way by the weight of the token pressing upou a prolongation of it.
But as it is not in all cases convenient to have to use a token on the withdrawal

page_text: of every can or measure of liquid, the locking mechanism may in such cases be
either entirely dispensed with, or the locking catch may be temporarily thrown
out of action by means of a chain or wire attached to the prolongation of such
catch, which on being pulled down and placed upon a peg arranged in a suitable
position, lifts up the catch out of the way of the cam When the tokens are to be
used for the purpose of checking the number of measures of liquid withdrawn, it
will generally be desirable to have all the measuring cans of the same capacity,
but they may if desired be of different capacity. I give to these measuring cans
a special oblique or slooping form in order to ensure their contents being entirely
discharged into a trough suitably placed for their reception, from which a conduit
tube takes them forward and discharges them over the dished top of the Economiser
into any vessel placed thereon, any overflow returning to the reservoir in the
ordinary manner.
My third improvement consists in fitting an Economiser provided with a pump
with an alternative form of Measuring apparatus as follows:-
In a suitable position above the dished top of the Economiser I mount the.
Measuring vessel or vessels, of which there may be any convenient number, and each
of which may be made of any desired capacity. The liquid pumped up from the tank
discharges therein and when filled the Overflow passes, back into the tank through
a channel provided for the purpose. Each Measuring vessel discharges by means
of a tap into any can, bottle or receptacle placed under it, the dripping being collected
by the dished top of the Economiser and finding its way back into the tank in the
ordinary manner.
Yet another form of Measuring apparatus forms the subject of my fourth
improvement.
This is constructed as follows:
Over the dished top of the ordinary storage tank of an Economiser provided with
a pump, I mount an additional Reservoir, into which the liquid is pumped as
required from the lower tank and which serves to supply the Measures arranged
under it, of which there may be one or more of equal or different capacities; each
of these Measuring vessels communicates with the Supply Reservoir just mentioned
by a tube and is provided with a separate outlet and a tap, which latter can be
operated to simultaneously close the communication between the Measuring vessel
and the supply reservoir and open the communication between the measuring vessel
and its outlet and vice versa. Two such taps may be connected together by a toothed
wheel or other suitable gearing and discharge into one common outlet and be
worked by one handle, in such manner that the respective two Measuring vessels
thus connected discharge their contents and are filled from the supply reservoir
alternately with each turn given to the handle, that is say as one of them empties the
other fills and vice versa. A small Airtube is fitted in each Measuring vessel to allow
of the necessary air communication whilst filling or emptying. The Measuring vessels
are arranged between their Supply Reservoir above them and the ordinary storage
tank of the Economiser below them in such manner that their Outlet or Outlets
discharge over the dished top of the latter, which collects the overflow and guides it
back into the lower tank.
My fifth improvement refers to a change in the position of the Rotary Pump in
connection with the Economiser from that shown and described in a former Patent of
mine No. 1935, of 17 April 1883 in connection with Fig. thereof. Instead of the
said pump being mounted above the top of the tank I place it within the tank near
the bottom thereof, by doing which I gain the advantage, that the pump is generally
immersed in the liquid, has little or no suction to perform and keeps its prime, thus
considerably facilitating its use. I prefer to work the pump by means of two chain-
wheels, one fixed on the driving axle of the pump and the other on an axle suitably
placed above the top of the tank, an endless chain connecting the two chainwheels, but
it may be worked in any other suitable manner.
My sixth improvement refers to that form of the Economiser described and shewn in
"the specification of my Patent No. 4715 of April 5th 1886 and consists in providing

page_text: the well or funnel F shown at Figs. 1, 2 & 4 of the said specification with a trap by
means of which the lower aperture of the funnel, is sealed by the liquid remaining in
the trap, and the passage of air and vapours between the interior of the tank and
the Outside when the funnel F would otherwise be open, is cut off, thereby reducing
the loss by evaporation, and the danger of ignition in the case of easily inflammable
liquids. To this end the position of the valve H requires to be altered so as to close the
outflow aperture of the trap, instead of closing the lower aperture of the funnel F.
My seventh improvement relates to the same form of the Economiser and its
purpose is to obtain the same results by simpler means and thus reduce the cost
of construction. To attain this end I close the funnel F by a valve from above
instead of from below; this valve is arranged within the funnel, the shape and
position of which have to be altered and adapted to the purpose, and is pressed
upon the lower aperture of the funnel so as to close it, by the Outflow end of
the Movable Discharge pipe B, which in being laid down by the closing of the
lid A comes to lie within the cavity of the funnel in contact with such valve. A
spring or springs are arranged within or around the valve or both, which serve to
recover and lift it sufficiently, when the lid A and Discharge pipe B are lifted, to
open the funnel for the passage of liquid.
A vapour trap may be arranged under the funnel or not as desired, and the
upper opening of the funnel may be protected by a sieve or strainer moving in
connection with the valve, to prevent impurities entering the tank.
My eighth improvement consists in covering when desirable those metal surfaces of
the Economiser which come continually in contact with the liquid with a hard, acid
resisting enamel as a protection, on the one side for the apparatus, on the other
side for those acidiferous or other liquids, which deteriorate by direct contact with
metals. This process also results in the advantages of cleanliness, and non-liability
to corrosion when in contact with the atmosphere.
My ninth improvement consists in connecting with an Economiser or any other
suitable vessel for holding liquids an airpump, bellows, blower, fan or other suitable
apparatus for forcing air into the vessel for the purpose of withdrawing the liquid
therefrom.
Hitherto a pump for directly lifting the liquid has often been used for this
purpose. The advantage of my improved arrangement is, that the air is interposed
between the liquid and the apparatus for lifting it and direct contact is thus avoided,
which is a desirable consummation in many circumstances. A further advantage is
that compressed air may be accumulated and stored in the tank along with the liquid
and be available for drawing the liquid without the necessity of working the air-
forcing apparatus every time liquid is to be withdrawn. To attain these ends the
interior of the tank or vessel is arranged to be cut off from communication with the
outer atmosphere so as to prevent the escape of the air pressed therein; such air accumu-
lates above the surface of the liquid contained in the vessel and by its pressure causes
the liquid to rise up and flow out from a Delivery tube inserted in the vessel for the
purpose; such Delivery tube may be fitted with a tap or valve and may be fixed to
descend to near the bottom of the vessel or it may be arranged to be adjustable so that
it can be immersed in the liquid to any desired depth, as in some cases it is not desirable
to draw the liquid from the bottom but from a position nearer the surface. The air-
forcing apparatus may be arranged so as to be reversible, that is to say to force air
into the vessel or exhaust it therefrom as desired. In the latter case the vessel may
be filled by this means, by bringing the outer end of the Delivery tube above
mentioned in connection by tubing or otherwise with the liquid to be transferred to
such vessel.

page_text: COMPLEIN DIMULL
Improvements in Apparatus for Holding and Distributing or.
Measuring Out Oils and other Liquids.
I, GUSTAVUS ADOLPHUS JOHN SCHOTT of Westend Mills Richmond Road
Bradford in the County of York Manufacturer 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 more particularly to further improvements in the construction
of a tank, reservoir or apparatus for the storage and distribution of petroleum, oil
and other liquids commercially known as "Richters" Economiser for which Letters
Patent No. 344980 and various subsequent Improvement Patents have been granted ;
a portion of such improvements however are also applicable to other vessels used for
similar purposes and the effect of my present improvements is to render them more
useful and applicable to a greater variety of purposes.
I now proceed to describe my improvements with reference to the accompanying
drawings
--
1). My first improvement consists in providing the Economiser with means to
prevent oil or other liquid contained therein congealing or getting thick at low
temperatures. To this end hot water, air or steampipes may be fitted therein in any
suitable position, or where it is not convenient to do so, the requisite heat may be
obtained from lighted Gas jets or oil lamps placed in recesses or tubular channels
suitably formed in the tank of the Economiser. These gas jets or lamps I place by
preference at or near the Suction inlet of the pump of the Economiser, as it is most
important to keep the oil there in a liquid condition. The arrangement is indicated
in Fig. 3 at (N) which represents a recess, which can be closed by a door and wherein
a lighted oil lamp is placed in close proximity to the inlet (M) of the pump (L). Of
course perforations to admit air to the recess must be provided in the door or
otherwise.
2). The second of my present improvements is illustrated in Fig. 1 and relates to the
substitution in the said Economiser for the pump hitherto used, of an arrangement
for raising the liquid by means of Cans or Measures (Fig. 1. E) attached to an
endless chain, which is passed over two chainwheels, one mounted near the bottom of
the tank and the other above the surface of the liquid, and revolves thereon when the
shaft of. the upper chain wheel is turned by means of the handle (L). Combined
therewith when desired may be a locking arrangement, which necessitates the use of
a check or token for the purpose of withdrawing the liquid. Such arrangements are
useful for measuring the liquid withdrawn and for affording a control over its
withdrawal.
The locking arrangement consists of a combination of catches the main one of
which (Fig. 1. N), called the locking catch, prevents the forward movement of the
chain wheels and chain by acting upon a cani (M) fixed upon the driving shaft, until
the said locking catch is lifted out of the way by the weight of the token, which is

page_text: dropped through an aperture in the top of the Economiser and proceeds down the
channel (A), coming in contact on its way with the tail part of the catch (N), which
it has to depress in order to get room to pass into the box (D). The channel (A)
is formed zigzag, so that the lock may not he picked. The catch shewn in the channel
is placed there for the same purpose. The weight (P) serves to regulate the extent of
lift of the catch (N). The catch (G) engages with the cam (M) to prevent its being
turned back.
But as it is not in all cases convenient to have to use a token on the withdrawal of
every can or measure of liquid, the locking mechanism may in such cases be either
entirely dispensed with, or the locking catch may be temporarily thrown out of action
by means of a chain or wire (B) attached to the tail or prolongation of such
catch (N), which on being pulled down and placed upon a peg (C) arranged in a
suitable position in the box (D), lifts up the nose of the catch (N) out of the way
the cam (M).
of
When the tokens are to be used for the purpose of checking the number of
measures of liquid withdrawn, it will generally be desirable to have all the measuring
cans of the same capacity, but they may if desired be of different capacity. I give
to these measuring cans a special oblique or sloping form as shewn in Fig. 1, in order
to ensure their contents being entirely discharged into a trough (R) suitably placed
for their reception, from which a conduit tube (S) takes them forward and discharges
them over the dished top (F) of the Economiser into any vessel placed thereon, any
overflow returning to the reservoir in the ordinary manner.
3). My third improvement consists in fitting an economiser provided with a pump
with an alternative form of Measuring Apparatus as indicated in Fig. 2.
In a suitable position above the dished top of the Economiser I mount the
Measuring vessel or vessels (A 1 to 4 fig. 2), of which there may be any convenient
number, and each of which may be made of any desired capacity. The liquid
pumped up from the tank discharges in (A 1) through the tube (B) and when filled,
the overflow passes to (A 2) and so on until all the measuring vessels are filled and
finally back into the tank through a tube (C) provided for the purpose. Each Measuring
vessel discharges by means of a tap (D1 to 4) into any can, bottle or receptacle
placed under it, the dripping being collected by the dished top of the Economiser
The Measuring
and finding its way back into the tank in the ordinary manner.
vessels may be mounted on the top of the Economiser in the manner shewn in Fig. 3
other suitable and convenient manner.
or in any
4.) Yet another form of Measuring Apparatus forms the subject of my fourth
improvement and is illustrated in Fig. 3.
Over the top of the ordinary storage tank of an Economiser provided with a pump,
I mount an additional Reservoir (A), into which the liquid is pumped as required
from the lower tank in the present instance through a prolongation (B) of the
ordinary discharge pipe (C). The reservoir (A) serves to supply the measures (D)
arranged under it, of which there may be one or more, placed side by side, of equal
or different capacities. In Fig. 3 only one measuring vessel is shown.
Each measuring vessel (D)) communicates with the supply reservoir (A) by a
tube (E) and is provided with a separate outlet (F) and a tap (G), which latter can
be operated to simultaneously close the communication between the measuring vessel
and the supply reservoir and open the communication between the measuring vessel
and its outlet (F) and vice versa. Two such taps may be connected together by a
toothed wheel or other suitable gearing and discharge into one common outlet and be
worked by one handle, in such manner that the respective two measuring vessels thus
connected discharge their contents and are filled from the supply reservoir alternately
with each turn given to the handle, that is to say as one of them empties the other
fills and vice versa.
A small airtube (H) is fitted in each measuring vessel to allow of the necessary air
communication whilst filling or emptying. The measuring vessels are arranged
between their supply reservoir above them and the ordinary storage tank of the
Economiser below them in such manner that their outlet or outlets (F) discharge

page_text: over the dished top of the latter, which collects the overflow and guides it back
into the lower tank. (I) is an overflow pipe for preventing the reservoir (A) being
overfilled, by guiding back the overflow into the tank of the Economiser. An
indicator may be fitted to the reservoir (A) to show the height at which the liquid
stands therein. (K) is a tap inserted in the discharge pipe (-B), through which,
when open, liquid may be drawn from the Economiser without passing through the
reservoir (A) and measuring measuring vessel (D).
5). My fifth improvement refers to a change in the position of the Rotary Pump
in connection with the Economiser from that shewn and described in a former Patent
of mine No. 1935 of 17th April 1883 in connection with Fig. 6 thereof. Instead of
the said pump being mounted above the top of the tank I place it within the tank
near the bottom thereof as indicated in Fig. 3, (L) being the said Rotary Pump, by
doing which I gain the advantage, that the pump is generally immersed in the liquid,
has little or no suction to perform and keeps its prime, thus considerably facilitating
its use.
I may work the pump by means of two chain wheels, one fixed on the
driving axle of the pump and the other on an axle suitably placed above the top
of the tank, an endless chain connecting the two chain wheels, but it may be worked
in any other suitable manner. In the case illustrated in Fig. 3 the pump (L) is
placed on its side and its driving axle (0) prolonged upwards so as to reach above
the top of the Economiser where it can be turned by the handle (P) fixed on the
upper end of the axle (O).
6). My sixth improvement is indicated in Fig. 4 and refers to that form of the
Economiser described and shewn in the specification of my Patent No. 4715 of
5th April 1886 and consists in providing the well or funnel (F) shewn at
Figs. 1. 2 & 4 of the said specification and also in Fig. 4 of the present specifi-
cation, with a trap (A) by means of which the lower aperture of the funnel is.
sealed by the liquid remaining in the trap and the passage of air and vapours
between the interior of the tank and the outside when the funnel (F) would other-
wise be open, is cut off, thereby reducing the loss by evaporation, and the danger
of ignition in the case of easily inflammable liquids. To this end the position of
the valve (H) requires to be altered so as to close the outflow aperture (D) of
the trap (A), instead of closing the lower aperture of the funnel (F). The
principle of construction of the trap (A) is of the simplest; the liquid remains
therein to the level of the partition (B) thus sealing the funnel (F) and passes
down the channel (C) the lower mouth of which is closed by the valve (H).
7). My seventh improvement relates to the same form of the Economiser and
is illustrated in Figs. 5 & 6. Its purpose is to obtain the same results by simpler
means and thus reduce the cost of construction. To obtain this end I close the
funnel (F) by a valve (B) from above instead of from below; this valve (B) is
arranged within the funnel (F), the shape and position of which have to be altered
and adapted to the purpose, and is pressed upon the lower aperture (G) of the
funnel so as to close it, by the outflow end of the ordinary movable discharge pipe,
which in being laid down by the closing of the lid (A) comes to lie within the
cavity of the funnel (F) in contact with such valve. A spring or springs are
arranged within or around the valve or both, which serve to recover and lift it
sufficiently, when the lid (A) and discharge pipe are lifted, to open the funnel for the
passage of liquid.
A vapour trap (A) of ordinary construction may be arranged under the funnel or
not as desired, and the upper opening of the funnel may be protected by a sieve or
strainer moving in connection with the valve, to prevent impurities entering the tank.
The details of the arrangement will be understood from the diagrams Figs. 5 & 6,
the former of which represents the funnel (F) open for the passage of liquid, whilst
in Fig. 6 it is closed by the valve (B) pressing upon the aperture (G). The valve (B)
adjusts itself to the aperture (G) by its stem or socket being constructed of two
sections (B & B2), which enclose the spiral spring (E). (B²) telescopes in (B¹)
and the spiral spring (E) can therefore be compressed and presses the valve (B)
firmly upon the aperture (G).

page_text: On the top of (B¹) is fixed the strainer (C) mounted in a ring ((") for straight
guidance in the funnel (F). Under the strainer is placed the spiral spring (D)
which surrounds the valve and sockets (B, B' & B²) and serves to lift them, and also
the strainer (C) into their proper positions, when the pressure of the discharge pipe
is withdrawn.
8). My eighth improvement consists in covering when desirable those metal
surfaces of the Economiser which come continually in contact with the liquid with
a hard acid resisting enamel as a protection, on the one side for the apparatus, on
the other side for those acidiferous or other liquids, which deteriorate by direct
contact with metals. This process also results in the advantages of cleanliness and
non-liability to corrosion when in contact with the atmosphere.
9.) My ninth improvement consists in connecting with an Economiser or similar
suitable vessel for holding liquids an airpump, bellows, blower, fan or other suitable
apparatus for forcing air into the vessel for the purpose of withdrawing the liquid
therefrom. Hitherto a pump for directly lifting the liquid has been used for this
purpose.
The advantage of my improved arrangement is, that the air is interposed between
the liquid and the apparatus for lifting it and direct contact is thus avoided, which
is a desirable consummation in many circumstances. A further advantage is that
compressed air may be accumulated and stored in the tank along with the liquid
and be available for drawing the liquid without the necessity of working the air
forcing apparatus every time liquid is to be withdrawn.
Fig. 7 represents an Economiser fitted with an air pump (A), which is double
acting as will be presently explained. The interior (B) of the tank or vessel is
arranged to be cut off from communication with the outer atmosphere so as to
prevent the escape of the air pressed therein; such air accumulates above the surface
of the liquid contained in the compartment (B) and by its pressure causes the
liquid to rise up and flow out from a delivery tube (C) inserted in the vessel for
the purpose; such delivery tube may be fitted with a tap (D) and may be fixed to
descend to near the bottom of the vessel or it may be arranged to slide in a tube and
stuffing box (E) or be otherwise adjustable so that it can be immersed in the liquid
to any desired depth, as in some cases it is not desirable to draw the liquid from the
bottom but from a position nearer the surface. The air-forcing apparatus may be
arranged so as to be reversible, that is to say to force air into the vessel or exhaust it
therefrom as desired. In the latter case the vessel may be filled by this means, by
bringing the outer end of the delivery tube (C) above mentioned in connection by
tubing or otherwise with the liquid to be transferred to such vessel. Above the
compartment (B) is a second compartment (F) which serves to receive the over-
flow from the discharge pipe (C), which passes, in through a funnel (G) with a
perforated bottom. Through this funnel passes also the plug (I) of a tap (H),
constructed in the manner of the tap (D) described in the specification No. 3449
of Aug. 25th 1880 in connection with Figs. 1, 2 & 3 of the said specification.
As this tap (H) is opened or closed by turning the handle at the upper end of the
plug (I), the compartment (B) is in communication with the compartment (F) or
the communication is cut off. When the tap (H) is open, liquid poured upon the
dished top (K) of the Economiser will pass through the funnel (G), compartment (F)
and tap (H) into the compartment (B) together with any overflow or liquid, which
may previously have been contained in the compartiment (F).
Fig. 8 illustrates the construction of the double acting or reversible air pump
(A Fig. 7). It consists of a cylinder (B), piston (C) piston rod (D). The lower
part of the cylinder communicates through channels in which are placed the valves
(E & F) the former of which opens from the outside, and the latter from the inside,
and cocks (G&H) with the compartment (B Fig. 7).
In Fig. 7 only one of these channels and cocks are visible, but there are two. The
cocks (G & H) have cach two ways, one transverse leaving open the channel in
which it is inserted, the other cutting off cominunication along the channel and opening
it to the outside. Both these ways are shewn in Fig: 8, one in each cock. If we

page_text: now assume the piston to be lifted, valve (F) will close, valve (E) will open and air
will be drawn from the outside through the cock (G) into. the cylinder (B). When
the piston descends, the valve (E) is closed and the air contained in cylinder (B) is
pressed through the valve (F) and cock (H). into the reservoir (B Fig. 7). But if
we now assume the cocks (G & H) to be turned into the reverse position, lifting the
piston will exhaust the air from the reservoir (B. Fig. 7) through cock (G) and
valve (E) and when the piston descends such air will be discharged into the open
through valve (F) and cock (H).
my
said
Having now particularly described and ascertained the nature of
invention, and in what manner the same is to be performed, I would have it
understood that I do not confine myself to the precise mechanical details of con-
struction as herein before specified, as such details admit of modification, but what I
claim is
1). Fitting a Richters Economiser or similar vessel with warming apparatus for
preventing the liquid contained therein from congealing, more particularly in the
neighbourhood of the suction inlet of the pump, substantially in the manner herein
before specified.
.
2). Fitting a Richters Economiser or other vessel with cans (E) for raising and
if desired also measuring the liquid, with or without a locking and checking
apparatus, the action of which can be temporarily suspended by means of a wire (B)
and peg (C), substantially in the inanner and for the purposes herein before described
in connection with Fig. 1.
3). Fitting a Richters Economiser or similar vessel with a measuring apparatus
consisting of one or more measuring vessels (A), supply tube (B), overflow .tube (C),
taps (D), substantially in the manner and for the purposes described and shewn in
connection with Fig. 2.
4). In a Richters Economiser or similar vessel the combination of a distributing and
measuring apparatus consisting of a reservoir (A), measuring vessel or vessels (D),
tube (E), outlet (F), tap (G), air tube (H) with a supply pipe (B) and overflow
pipe (I), substantially in the manner and for the purposes hereinbefore described and
illustrated in Fig. 3.
5). Fitting a Richters Economiser or similar vessel with a rotary pump (L) placed
at or near the bottom of the tank and worked by a handle (P) connected with the
driving axle of the pump, substantially in the manner and for the purposes herein-
before described and shewn in Fig. 3.
6). Fitting a Richters Economiser with a vapour trap (A) which is opened or
closed by the working of the valve (H) substantially in the manner as hereinbefore
described and illustrated in Fig. 4.
7). Fitting the funnel of an economiser with a valve (B) carried by sockets (B
and B2), spiral spring (E), strainer (C) and spiral spring (D), the valve (B) being
closed by coming in contact with the movable discharge pipe of the Economiser,
when the latter is laid down in closing the lid of the Economiser, substantially as
hereinbefore described and illustrated in Figs. 5 & 6.
8). Covering the surfaces of a Richters Economiser which come mainly in contact
with the liquid, with Enamel substantially as herein before specified.
9.) In a Richters Economiser or other vessel used for similar purposes an air
forcing and exhausting pump or apparatus (A), in combination with movable discharge
pipes (C) compartments (B & F) tap (H), substantially as hereinbefore described, and
illustrated in Fig. 7.
Dated this Fifteenth der of October 1888
GUSTAVUS ADOLPHUS JOHN SCHOTT.