小 therefor, and the Application of such Exhaust to Certain Purposes.
Year: 1885

page_text: 小
therefor, and the Application of such Exhaust to Certain
Purposes.
I STRETHILL HARRY WRIGHT of 49* Talbot Street, Southport, in the County of
Lancaster Doctor of Medicine do hereby declare the nature of the said Invention
for AN IMPROVED METHOD OF EXHAUSTING AND APPARATUS EMPLOYED THEREFOR
AND THE APPLICATION OF SUCH EXHAUST TO CERTAIN PURPOSES to be as follows:-
.J
The improved method according to my Invention relates to the practical utili-
zation of the property of fluids when passing through pipes of conveying with
their flow proportional quantities of air or other gases. This method is advanced
with special reference to the use of water conveyed in pipes to act as the motor of
exhaust pumps of rapid and powerful action.
The improved method of exhausting according to this Invention consists in
exhausting air, or other gases by means of a volume of fluid flowing part bore
through a pipe, or pipes which may be in connection with' any receptacle, or
receptacles or chamber, or chambers, or other object of exhaust for any desired
purpose.
The discovery and utilization of the fact that the maximum exhaust power
possessed by water flowing through tubes is in the direct ratio of the height of the
water column in such tubes and the perpendicularity of its fall; but that exhaust
power also depends for its efficiency in the proportion of water in the tube to the:
full bore capacity of such tube at the same measurement of perpendicular, or part
perpendicular height. The exhaust power of water flowing through tubes increases
directly with the length and perpendicular height of the tube and is inversely as
the size of the tube through which flows any given quantity of water i.e. small
tubes will give for equal height with a given quantity of water better results than:
tubes of larger size. It follows that when speed and increased power are required
it is best gained not by increasing the size of tubing, but increasing the number of
small tubes used in an exhaust apparatus. The exhaust capacity of tubes through:
which water flows depends much on the quantity of water flowing through them.
A full bore discharge possesses but small exhaust power, while a part bore dis-
charge possesses an exhaust capacity varying with the quantity of its discharge.

page_text: For practical purposes, I have found that tubes of inch diameter running & bore
give the best results for exhaust purposes as above described when water is the
exhaust agent in use. I advance as part of my Invention an apparatus which well
utilizes the exhaust power of water-flowing through tubes under the conditions
described i.e. of water flowing through pipes and filling them at less than their full
bore capacity. As simplifying a principal feature of my invention I have called.
it the part-bore-pipe Hydraulic exhaust pump. This apparatus consists of the
following parts (a) a cylinder or other shaped chamber closed except at the points
described (b) a water supply to this cylinder. The water supply may either pass
freely into the cylinder in regulated quantity, or its supply may be trapped in the
cylinder only to enter under certain conditions of its supply. (c) an exit pipe so
fitted in the cylinder that the water supply after running to the level of its upper
opening overflows and leaves the cylinder by such pipe (d) an air pipe entered
into the cylinder either flush, or trapped to a certain extent by the water in
the cylinder so that air can only enter from it under certain conditions of the
operation of the apparatus.
The cause of the exhaust power of this apparatus is due to the action of the
water passing by the exit pipe which carries into it a portion of the air from the
cylinder above its orifice in that cylinder. It is however probable that air com-
pression in the cylinder in some measure may promote the action of the apparatus.
The power of exhaust of this apparatus is dependent upon the length of the exit
pipes and consequent length of the water column contained in it; and upon the
proportion of water in that column to the full bore capacity of the exit pipe as
before described.
This apparatus acts as follows:-Water is supplied to the cylinder through the
supply pipe in such quantity as to cause the exit pipe to discharge part bore.
Water flows down the exit pipe carrying with it air from the upper part of the
cylinder. The place of this air is supplied through the air pipe either by air from
the atmosphere, or by air from a closed chamber which it is desired to exhaust.
One utilization of this method of exhaust according to my Invention consists in
its application to the exhaust of syphons whereby their proper action is ensured.
In the case of large syphons at present this correct action is seldom obtained with-
out some device or mechanism for aiding it. By this Invention the syphon discharge
of any tank, or other water receptacle can be ensured without respect to the size
of the syphon that discharge will be a full bore one and will be effected by the
use of an apparatus without working parts. The discharge can be made automatic.
Of course the syphon pipe must be provided at each end with water seals; but
this is easily effected by placing one end, the short leg in the receptacle to be
emptied by it and the other in a water well a foot, or so deep.
A slightly varied exhaust apparatus consists in having two, or more water supply
pipes combined with the air pipe. The combined water and air then pass, when
the apparatus acts into the cylinder through one pipe. The exhaust action of this
apparatus commences at the junction of the water supply and air pipes, but it is
principally effected in the cylinder as already described. This form of exhaust
apparatus is of use when it is desired to regulate the intermittent automatic dis-
charge of a tank, or other receptacle. The combined air and water supply pipe is
trapped in the cylinder by entering it to below the level of the orifice of the exit
pipe; and the water supply to the exhaust is obtained from the tank to be emptied.
Such an apparatus begins to work so soon as the water in such tank reaches a level
above the point at which the supply is delivered to the exhaust apparatus which
level is just over the height of the trap in the cylinder of the exhaust as described.
Whenever the water level in the tank exceeds the height of this trap, the trap is
forced and the action of the exhaust commences.
When the apparatus is used to exhaust syphons, the length of the exit tube of
the exhaust apparatus must exceed in its measurement, the measurement from the
level of the water in the tank to be emptied to the top of the bend of the syphon
to be exhausted. The position, or level of the exhaust apparatus itself in relation
"'
A

page_text: to the syphon it exhausts are not material, nor is its distance from the syphon of
any moment for ordinary work.
The application of my Invention to ensure the automatic and correct, or full
bore discharge of the syphon pipe of a flush tank is effected in the following
manner. A syphon discharge pipe of large capacity say 6 inches to 12 inches
transverse measurement is fitted to such a tank and its short leg bent down to,
within a proper distance from the flow of the tank. The syphon is fitted with a
second pipe entered at its crown and is bent down so that its end is levelled an
inch and a half above the syphon mouth. At its other extremity the long leg.
of the syphon is bent so as to form a water trap. When water rises in the tank
and this trap is filled the cavity of the syphon is an air chamber between two.
water seals. To this syphon so fitted an exhaust apparatus with a trapped-cylinder
is attached, its water supply pipes being entered below the bend of the tank syphon
and its air supply pipes which are two in number are attached to the crown of the
syphon and to its long leg about half a foot above the top bend of its trap. The
trap in the cylinder of the exhaust apparatus must be less in height than that of
the tank syphon to be drawn. If these two traps of the tank syphon and of the
exhaust cylinder be filled the tank will discharge when the water in it rises to a
level above the attachment of the water pipes of the exhaust apparatus higher than
the depths of the water trap in the cylinder. This trap is then forced water passes
into the exit pipe, the exhaust action of the apparatus draws the air from the tank
syphon which shortly goes full bore and empties the tank to the bottom of its
short leg. Air rushes into the syphon through its air supply pipe completely
renews the air in the syphon and prepares the apparatus for an exact automatic
repetition of the preceeding action. When the discharge is over a receptacle fitted
to the trap of the discharge syphon which has filled during discharge returns its
contents to the trap and ensures the maintenance of the trap at a full level.
By adding a second exhaust apparatus to the first, the tank may be made to dis-
charge at any level above the cylinder of this second apparatus but below the level
determined by the trapping in the cylinder of the first exhaust apparatus. The
cylinder of the second apparatus is not trapped and its air pipe is connected with
the cylinder of the first exhaust apparatus. This first exhaust apparatus is
modified by having its exit pipe trapped four inches, or less as may be necessary.
The water supply pipe (or pipes) of the second exhaust apparatus is not attached
to the syphon of the tank but after being bent in syphon form passes down free in
the tank till its extremity is on a level with the air pipe of the tank syphon. With
this appliance the tank will discharge at any point within the level of the top of
the cylinder of the second apparatus below, or the level determined by the trapping
of the cylinder of the first exhaust apparatus.
By another arrangement a tank syphon may be made automatically to fill its
own trap and discharge when the water in its tank reaches a given height; so
that the apparatus may be placed empty, the tank supplied with water and the
syphon and exhaust apparatus left to regulate its own full bore discharge. This
tank syphon is fitted as before. It is fitted with one, or more exhaust apparatuses,
the cylinders of which are untrapped. The supply water pipes pass from just
below the bend of the tank syphon to the exhaust cylinder. The air pipes are
attached as before described to the tank syphon but are entered flush to the
cylinders The exit pipes are entered into the middle leg of the M trap of the
tank syphon and pass into it to a level, which when the trap is filled determines
the level at which the tank will discharge when the trap of its syphon is full; but
this level should not be much more than half way down the trap.
In action when water is first passed into the tank, all its fittings being empty,
it rises outside and inside the short leg of the syphon until it reaches the point at
which the water pipes of the exhaust apparatus are attached: the water then
passes through the exhaust apparatus enters the trap of the syphon which it fills
until the cavity of the syphon is sealed. Exhaustion then commences and in due

page_text: time the tank syphon discharges full bore. On its next discharge the tank will
empty from a level above the connections of the exhaust apparatus pipes with the
syphon determined by the depth of the immersion of the exit pipes of the exhaust
in the trap of the syphon. This forth of apparatus will only discharge auto-
matically at the two levels described. The openings of all the pipes of such
exhaust apparatus are preferably provided with a protecting material to prevent
their becoming choked and so having their efficiency impaired. Wire gauze is a
Buitable material for this end. The pipes should also be attached with screw joints.
and washers that if necessary they may be cleaned at these points.
Amongst others the following are some advantages attending the use of this
application.
A certain and automatic discharge when a fixed water level is reached in the
tank.
Certainty of action and constancy of action as there is no mechanism nor are
there working parts
A full bore flush of a discharge syphon of any size.
A constantly filled trap of great depth between the tank and the drain or any
receptacle into which the tank may discharge.

page_text: therefor, and the Application of such Exhaust to Certain
Purposes.
"
I STRETHILL HARRY WRIGHT, of 49 Talbot Street, Southport, in the County
of Lancaster, Doctor of Medicine, do hereby declare the nature of my said invention
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The improved method according to my Invention relates to the practical
utilization of the property of fluids when passing through pipes of conveying
with their flow proportional quantities of air, or other gases. This method is
advanced with special reference to the use of water conveyed in pipes to act as
the motor of exhaust pumps of rapid and powerful action.
The improved method of exhausting according to this Invention, consists in
exhausting air, or other gases by means of a volume of fluid flowing. part bore
through a pipe, or pipes which are in connection with a receptacle, or receptacles,
or chamber, or chambers or other object of exhaust for any desired purpose such as
are herein defined.
I advance the discovery and utilization of the fact that the maximum exhaust
power possessed by water flowing through tubes is in the direct ratio of the height
of the water column in such tubes and the perpendicularity of its fall; but that
exhaust power also depends for its efficiency in the proportion of water in the tube
to the full bore capacity of such tube at the same measurement of perpendicular,
or part perpendicular height. The exhaust power of water flowing through tubes
increases directly with, the length and perpendicular height of the tube and is
inversely as the size of the tube through which flows any given quantity of water,
i.e small tubes will give for equal height with a given quantity of water better
results than tubes of larger size. It follows that when speed and increased power
are required they are best gained by not increasing the size of tubing but by
increasing the number of small tubes used in an exhaust apparatus. The exhaust
capacity of tubes through which water flows depends much on the quantity of
water flowing through them. A full bore discharge not artificially diminished
possesses but small exhaust power while a part bore discharge possesses an exhaust
capacity varying with the quantity of that discharge. For practical purposes
I have found that tubes of inch diameter, running bore give very good results
for exhaust purposes as above described when water is the exhaust agent in use.
I advance as part of my Invention an apparatus which well utilizes the exhaust
power of water flowing through tubes under the conditions described i.e. water
flowing through pipes and filling them at less than their full bore capacity.
As signifying a principal feature of my Invention I have called it "The part bore
pipe Hydraulic Exhaust Pump. This apparatus consists of the following parts.
A centre portion in which the exhaust process takes place; a draw pipe in falling
through which a column of fluid of regulated bulk effects exhaustion; a supply,
pipe the discharge of which is regulated by being fitted with a tap or by other
:

page_text: equivalent means of regulation by which fluid is supplied to the draw pipe in a
regulated quantity; an air pipe through which air passes to supply the vacuum
created in the centre portion. Such a combination of supply pipe, air pipe, draw
pipe and exhaust chamber I call an element.
A simple form of apparatus for utilizing the exhaust power of a pipe running!
part bore is shown in Figures 14 and 13 of the Drawings annexed to this Specifi-
cation. I shall for convenience of description as regards its operation, describe it
as consisting of four parts: a. a centre portion in which the exhaust process takes
place; a draw pipe c in falling through which a column of fluid of regulated bulk
effects an exhaustion in a; b a supply pipe fitted with a tap 6' by which fluid is
supplied to c in a regulated quantity; d an air pipe through which air passes to
supply the vacuum in a. The combination of these parts I call an element, the
section of which must be of such a size as to ensure the trap remaining nearly full
when their discharge is completed.
The action of the exhaust power of both forms of apparatus is due to the action
of the water passing by the draw pipe which carries with it a portion of the air
from the chamber, or centre portion above its orifice in that chamber, or centre
portion.
The power of exhaust of this apparatus is dependent upon the length of the
draw pipe and consequent length of the water column contained in it, and upon
the proportion of water in that column to the full bore capacity of the draw pipe
as before described.
The most convenient plan of fitting the supply is shown in Figures 1A and 1B.
The supply b is preferably bent in syphon form and its discharge is given from a
water supply the level of which is maintained at a fixed, or nearly constant point
above the draw pipe. This arrangement provides for a steady action in the draw
pipe (c c).
This apparatus acts as follows: Water is supplied to the chamber or centre
portion (a a a a) through the supply pipe in such quantity as to cause the draw
pipe to discharge part bore. Water flows down the draw pipe carrying with it air,
or gas from the upper part of the chamber or centre, portion. The place of this
air or gas is supplied through the pipe d either by air from the atmosphere or by
air, or gas from a closed chamber, which it is desired to exhaust.
In Figure 2 is given a Drawing of a combination of exhaust elements so arranged
that the whole is put in action by the initiatory action of one element. Such a
combination, I call an exhaust battery. is a tank which is filled to the level
W. L. with water from the supply pipe S as shown. The elements are numbered
1. 2 and 3. The supply pipe b of each is of syphonic form and is bent and extends
downwards to near the bottom of the tank and is at its lower end fitted with a
tap b¹ to control the supply to the chamber of the elements a to which it belongs.
The bends of the supply syphons b are placed clearly above the water level of the
tank. Those of syphons, or elements 2 and 3 being say 1 inch, or 2 inches above
the bend of the supply pipe bend of element 1. ccc are the draw pipes of the
elements and extend through the bottom of the tank x. Element 1 initiates the
action of the battery. The supply syphon of element 1 is say one inch above
the water level W. L and is untrapped in the chamber a.
The draw pipe c passes
down through the bottom of the tank The air pipe & passes upwards and enters
the bottom of a chamber e.
d
Elements 2 and 3 differ from 1 in showing their supply pipe trapped in their
respective chamber, say four inches. From the descending leg 6 of the supply
syphons of each an air tube e' is led and is entered flush to the upper surface of e.
The pipe e' may enter the leg b about a point fixed by measuring round the bend
of the leg b above the water level W. L. and then taking that measurement from
the upper surface of a. i.e. suppose the bend of b above the water level equals
three inches, I measure three inches above a on the leg b and between that point
and the water level I enter the air pipe e¹. From the respective chambers a of
the elements 2 and 3 are produced the air exhaust tubes d which are entered flush

page_text: to the bottom of a chamber F. From the top of F is produced a pipe ƒ through
which the battery exerts its exhaust power.
In action the tank is filled until a head is given to the syphon supply pipe of
element 1. Water descends part bore the draw pipe c of this, element, exhausts
the chamber a of element 1 and consequently the vacuum chamber : thus air is
drawn from the bends of the supply of elements 2 and 3 and water rises and sets
their supply in action. The draw pipes c of elements 2 and 3 are now brought
into action and cause exhaustion of their chambers a and consequently of the
vacuum chamber F. through the pipes d and f and cause an indraw of air through
the pipe and consequently exhaustion of any closed chamber with which ƒ may
be connected.
"
The number of elements of which such a battery is composed may be multiplied
indefinitely, the relation of the parts and their connections continuing the same.
In all cases one element is preferably used to start the other elements.
One utilization of the Invention described in this Specification consists in its
application to the exhaust of syphons whereby their proper action is ensured.
In the case of large syphons at present this correct action is seldom obtained
without some device, or mechanism for aiding it. By this Invention the syphon
discharge of any tank, or other water receptacle can be ensured without respect to
the size of the syphon; that discharge will be full bore and will be effected by the
use of an apparatus without working parts. The discharge can be made automatic.
Of course the syphon pipe must be provided at each end with water seals, but this
is easily effected by placing one end, the short leg, in the receptacle to be emptied
by it and the other in a water well of suitable depth.
In Figures 3 and 3B are. shown diagramically the method by which the
part bore hydraulic exhaust pump can be used to exhaust syphons of large size A
and B. Figures 3 and 3B are syphons placed to draw from a water level W L.
The descending legs of each are trapped as shown at A Bш to a suitable depth.
a are exhaust elements connected to the syphons A and B by air pipes & attached
to the crown and descending legs of syphons A and B at points in the latter about.
half way between the crown and upper surface of the trap of the syphon. If the
traps 1111 of A and B be filled and the exhaust elements a be set in action by
supplying them with water through their supply pipes b that water descending
their draw pipes c will cause exhaustion of the air spaces in the syphons A and B
between the water seals of their short and long legs and will cause these syphons
to discharge full bore.
The trap, or water seal of the syphon A with reference to Figure 3ª is of a novel
formation and consists as will be seen of a closed chamber in which the pipe
forming the long leg of the syphon is disconnected; the ends of the upper and
lower portions of the leg overlapping one another to a considerable extent vertically.
When the syphon is in action the chamber becomes filled with liquid and at the
termination of the action the nature or arrangement of the trap prevents it being
broken so long as it is made of sufficient size. Hence after a discharge of a tank
by the syphon the seal, or trap remains whole, thus constituting a non emptying
trap. This certainty of non emptying is a feature which is not possessed by
ordinary liquid seals, or traps. In the Drawing a seal chamber is shown having
a sectional area of about ten times that of the syphon pipe. This proportion is
ample and will ensure the non emptying of it. In all cases I prefer to position
the syphon trap in its long leg at a distance as little below the mouth of the short
leg as possible, so as to make the air chamber formed in it to be exhausted as
small as possible. In the syphonic air pipe for the syphon trap hereinafter
described with reference to Figure 4 a trap of similar construction is set forth and
shown in connection with it as that just described. I would have it understood
that the non emptying trap above described is applicable to most kinds of syphons
where a certain non emptying is necessary, or desirable.
The exhaust elements a, or a battery of these elements as before described may
D

page_text: more than one such syphon A and B when such an exhaust will cause such syphons
to discharge and a chamber may be interposed between the element, or battery
and the object of exhaust this chamber is preferably positioned near the battery.
The action then is: the chamber is first exhausted and then opened to the object
to be exhausted. Where the object of exhaust is a syphon this method of exhausting
effects a very rapid action of the syphon.
A slightly varied exhaust apparatus consists in having one, or more water supply
pipes combined with the air pipe. The combined water and air then pass when
the apparatus acts, into the chamber through one pipe. The exhaust, action of
this apparatus commences at the junction of the water supply and air pipes. This
form.of exhaust apparatus is of use when it is desired to regulate the intermittent
automatic discharge of a tank or other receptacle. The combined air and water
supply pipe is trapped in the chamber by entering it below the level of the orifice
of the draw pipe and the water supply to the exhaust is obtained from the tank to
be emptied. Such an apparatus begins to work as soon as the water in such tank
reaches a level above the point at which the supply is delivered to the exhaust
apparatus which level is just over the height of the trap in the chamber of the
exhaust as described. Whenever the water level in the tank exceeds the height of
this trap, the trap is forced and the action of the exhaust commences.
When the apparatus is used to exhaust syphons, the length of the exit tube of
the exhaust apparatus must necessarily considerably exceed in its measurement the
measurement from the level of the water in the tank to be emptied to the top of
the bend of the syphon to be exhausted. The position, or level of the exhaust
apparatus itself in relation to the syphon it exhausts are not material, nor is its
distance from the syphon of any moment for ordinary work.
The application of my Invention to ensure the automatic and correct, or full
bore discharge of the syphon pipe of a flush tank is effected in the following
manner. A syphon discharge pipe of large capacity, say six to twelve inches
transverse measurement is fitted to such a tank and its short leg bent down to
within a proper distance from the floor of the tank. The syphon is fitted with a
Becond pipe entered at its crown and is bent down outside the syphon so that its
end is levelled at a desirable height, say an inch and a half above the syphon
mouth. This I call the air supply pipe of the discharge syphon. At its other
extremity the long leg of the syphon is provided with a water trap and is also
provided with a trapped air pipe to prevent emptying of the syphon seal on its
discharge. When water rises in the tank and the trap of the syphon is full, the
cavity of the syphon is an air chamber between two water seals. To this syphon
so fitted an exhaust apparatus is attached its water supply being derived from the
water in the tank and its air supply pipe, or pipes are suitably attached to the
syphon. If the trap of the tank syphon be filled, the tank will discharge when
the water in it rises to such a level that a supply is given to the exhaust apparatus.
Water passes into the draw pipes of the exhaust apparatus, draws the air from the
tank syphon which shortly goes full bore and empties the tank to the bottom of
its short leg. Air rushes into the crown of the syphon through its air supply pipe
and into the crown of the trap through its air pipe completely renews the air in 4
the syphon and prevents the emptying of the trap and prepares the apparatus for
an exact automatic repetition of the preceeding action.
In Figure 4 of the Drawings is given a design of a flush tank fitted with a syphon
which is worked by an exhaust element placed in the tank and worked by the
water in the tank.
x is a flush tank fitted with a syphon A. B is the air pipe of the syphon A
made telescopic fashion so that the level of its open extremity can be raised, or
lowered in the tank.
5
G is a second syphonic air pipe attached to the trap of the syphon A and
entered to the trap of that syphon so that air is supplied to the trap of A shortly 5
prior to the conclusion of the discharge of that syphon and the force of the water
column in A being so broken this trap of A does not empty. The trap A¹ of the

page_text: pipe. G must be made of such a size that it remains nearly full when its action is:
completed and is of the same type as that of the syphon A in Fig. 34.
H is a syphonic arrangement by which the trap of the syphon A is emptied after
each 'discharge should it be thought desirable. It is fitted with a tap H¹ by which
its action can be shut off. This fitting is useful in frost when the water in the
trap of A by freezing might embarrass the action of the syphon. To this syphon A
an exhaust apparatus is attached consisting of one element a or instead of this
one element a battery may be used. Such exhaust apparatus is worked by the
water in the tank and attached to the syphon A as previously described.
In the exhaust apparatus, b is the supply. This supply pipe b may be brought
from the short leg of the syphon A just below its bend as shown in the Drawing,
or it may be bent down in a syphonic form as shown at 6' so that its extremity is
at a level in the tank above the level of the air pipe B of the syphon A.
d is the air connection of the syphon A with the exhaust apparatus. One pipe
of the air connection is entered flush to the crown of the syphon A, the other is
entered about midway down the descending portion of the syphon A in the tank a
and the pipe is preferably entered to about the middle of the cavity of the syphon A
and its extremity bent as shown in the Drawings whereby a prolonged exhaust is
obtained.
c is the draw pipe of the exhaust apparatus Its lower extremity is entered into
the middle limits of the trap of the syphon A so that when that trap is full the end
of the drain pipe d is trapped about two inches.
In action. the tank x is placed so that it will fill up to such a level above the
head of the syphon 6, or the level of the pipe b. When water has risen in the
tank to over the level of the pipe 6, or 6' it overflows into the chamber a and its
supply being duly controlled for instance by the tap on the pipe. b it descends part
bore the pipe c into the trap of the syphon A. The trap of the syphon A is filled
until the cavity of it is sealed. The condition formerly described is now established
the cavity of the syphon A is an enclosed air chamber between two water seals,
namely the water in the tank x 'and in its own trap and this local chamber is
connected to the exhaust by the pipes d. Water continues to fall through c but it
now exhausts the air from A and shortly by its continued extraction of air causes
the syphon A to discharge the contents of the tank x. So soon as the water in the
tank has fallen below the level of the extremities of the pipes B and G air is at
once supplied to the bend of the syphon A and to its trap as shown. The bend of
the syphon A is filled with air and its trap is caused to remain full as already
described. Should it however be desirable to empty the trap of A the tap H' of
the pipe H is opened before the discharge of the syphon A when on the conclusion'
of the discharge, the syphon H will empty the trap of the syphon A
The tank fitted with the syphon A and its exhaust apparatus as described
constitutes a flushing apparatus entirely automatic and without moving parts
which will discharge when a given level is reached. If the action of the syphoú H
be shut off and the trap of the syphon A remain full, the water level in the tank x
will rise to a level above b, or 63 which will enable its column to force the trapping
of the pipe c before the exhaust begins to work.
In Figure 5 I give a Drawing of a large syphon A placed in a flush tank which
is made to act by the exhaust of an exhaust battery situated in the same tank.
The parts of this tank and the syphon A are the same as in Figure 4 of the
Drawing. The parts of the exhaust battery are similar but its connection with
the syphon A is shown by the air.pipes f.
This battery is not put into action by the rise of water in the tank x but
the water level is fixed at W. L by an ordinary overflow if the supply is
uncontrolled, or by an ordinary ball tap, or other like means. The initiatory
action of element (1) is caused by an exhausting or suction apparatus of any
suitable description which is applied to the air exhaust pipe d such as described in
my Specification N° 6582 A.D. 1886.. Element 1 consists of double-chambers, the
upper being entered by the air pipe d flush, and the water supply pipe b also being

page_text: flush. The chambers are connected by a pipe of the same calibre, the draw pipe
being trapped to a convenient depth.
As previously described the exhaust battery may be removed altogether from
the tank and may exhaust the syphon A causing it to discharge its contents
while the water which actuates the exhaust battery is derived from an entirely
separate source.
In such a case I prefer to employ an intermediate chamber as above mentioned.
A diagramic drawing of the arrangement is shown at Figure 6 in which A is the
object of exhaust say a syphon. P is the interposed chamber placed near the
exhausting apparatus at Q The method of working in such cases as previously
described is that the chamber P is first exhausted by the apparatus at Q when
communication is made with the object of exhaust at A. At p there is provided a
suitable device such as a tap, or valve for making, or breaking communication
between the chamber and object of exhaust.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
First. The method substantially herein described of exhausting which method
consists of causing a regulated volume of water to run part bore down a "draw
pipe" the said "draw pipe" being in communication with an “exbaust pipe” or
chamber substantially as herein set forth.
Second. In apparatus for exhausting, the combination of a chamber, or central
portion, a supply pipe, a draw pipe and an air, or other gas exhaust pipe, operating
substantially as set forth.
Third. An exhaust "element" consisting of a trapped, or untrapped chamber, or
of a central portion, a draw pipe, a supply pipe and an air, or other gas exhaust
pipe, substantially such as set forth with reference to the Drawings.
Fourth. In apparatus of the type herein described an exhaust device having a
bent, or syphonic supply pipe, substantially as and for the purposes set forth with
reference to Figures 14 and 13 of the Drawings.
Fifth. An exhausting element consisting of a double chambered centre portion.
the lower chamber being trapped, a draw pipe a supply pipe and an exhaust pipe
substantially such as set forth with reference to Figure 5 of the Drawings.
Sixth. The combination of one, or more initiatory elements such as 1 and one,
or more main elements such as 2 and 3 such initiatory elements and main elements
being connected and operating substantially as set forth with reference to Figure 2
of the Drawings.
Seventh. The combination of the exhaust element 1 exhaust elements 2 and 3
tank, or reservoir arranged, constructed and operating substantially as set forth
with reference to Figure 2 of the Drawings.
Eighth. Effecting the discharge of syphons by one, or more exhaust "elements"
such as herein described substantially as set forth.
Ninth. In syphonic exhaust apparatus of the type herein described, the
application, or employment of two, or more exhaust pipes arranged substantially
such as set forth for the purposes described with reference to Figure 3 of the
Drawings.
Tenth. Effecting the discharge of tanks by an exhaust element, or elements
arranged in connection with a syphon in the manner described substantially as set.
forth with reference to Figure 4 of the Drawings.
Eleventh. In combination with a discharge syphon operated in manner such as
described, an air pipe such as B arranged and operating substantially as and for the
purposes set forth with reference to the Drawings.
Twelfth. In syphonic discharge apparatus of the type herein described an air
pipe such as B constructed with a mouth capable of being elevated, or lowered
substantially as and for the purposes set forth...

page_text: Thirteenth. The combination of a syphonic air pipe such as G with a main
discharge syphon such as A, arranged and operating substantially as and for the
purposes set forth with reference to Figures 4 and 5 of the Drawings.
Fourteenth. The combination of a syphon such as H arranged and combined with
a main discharge syphon A substantially as and for the purposes set forth with
reference to Figure 4 of the Drawings.
.
Fifteenth. The discharging apparatus as set forth with reference to Figure 4
consisting of the trapped syphon A exhaust element a provided with pipes b. c
and d trapped syphonic arrangement G air pipe B and syphonic pipe H arranged,
constructed and operating substantially as described.
Sixteenth. Effecting the initiatory exhaustion of a syphon exhaust element 1 of
a battery of exhaust elements, substantially in the manner set forth with reference
to Figure 5 of the Drawings.
Seventeenth. The discharging apparatus as set forth with reference to Figure 5
consisting of the trapped syphon A, air pipe B exhaust elements 1. 2 and 3 syphonic
air device G arranged, constructed and operating substantially as described.
Eighteenth. In connection with exhausting apparatus of the type herein described
the use of an exhaust chamber positioned between the object of exhaust and the
exhausting element, or elements substantially as and for the purposes set forth.
Nineteenth. Constructing syphons operated as described for discharging tanks, or
reservoirs with seals, or traps such as described directly below the level of such
tanks or reservoirs whereby the size of the air chamber formed in the syphon is
reduced and rapidity of action of the syphon is obtained substantially as set forth.
Twentieth. A trap, or seal for syphons constructed substantially as set forth
with reference to Figures 3 and 4 of the Drawings whereby non emptying is
obtained.
Twenty first. A syphon seal consisting of the closed chamber A¹ in which the
syphon pipe A is disconnected and made to overlap substantially as set forth with
reference to Figures 3 and 4 of the Drawings.