Improvements in Flushing and Discharging Syphons and Apparatus connected therewith.
Year: 1899

page_text: Date of Application, 25th July, 1899
Complete Specification Left, 25th Apr., 1900-Accepted, 21st July, 1900
DEPORTIVATION.
Improvements in Flushing and Discharging Syphons and Apparatus
connected therewith.
SAMUEL HENRY ADAMS, Hydraulic Engineer, Cumbrae, Park Avenue, Harro-
gate, do hereby declare the nature of this invention to be as follows:-
My improvements relate to the methods I employ to regulate the operation
of automatic or non automatic syphons. In one form for the purpose of my
invention it is desirable that such syphon shall have what is known as a deep
trap, in order that the escape of confined air at a suitable time shall bring about
the starting of syphon. I prefer to use with it a vent or air pipe which shall
dip into a pocket, bend, or suitably formed part of a syphon, liquid will remain
in this pocket after syphon discharge has taken place and the pipe will dip
so far in the liquid, then in operation as a tank fills in which such syphon is
placed, the air within the syphon, which cannot escape owing to the deep
trap at outgo, will be gradually put under pressure due to such rising liquid
and this pressure will cause liquid to mount up the vent or air pipe until in
the end the pressure within will overcome the resistance of the liquid in this
vent; the. liquid will be blown out, the escape of air from within syphon will
take place and syphonic action will follow; after the discharge this syphonic
action will be broken by the entry of air through this vent. This is one of the
chief objects of my vent pipe as by this means I can do away with the ordinary
sniff hole or substitutes and whether I use the pipe to start syphon or not I
may do so to break syphonic action. In some instances it is desirable not only
to withdraw the liquid from the receptacle in which a syphon is placed but also
from an adjoining receptacle or receptacles, to achieve this I construct a syphon
of any desired type such syphon having a feed branch or arm which shall reach
into or be connected with the receptacle or receptacles it is desired to draw
from. I prefer to form an opening governed preferably by a valve, between the
receptacles that the liquid in one may also supply another and that this open-
ing may be regulated to pass the liquid through from a main receptacle to the
auxiliary at any fixed rate. My syphon may be brought into operation by
liquid rising in the receptacle in which it is placed, and it will when in operation
draw off liquid from that receptacle in which it is placed and from any other
into which the feed branch or arm already referred to may dip or be connected,
whether the receptacles are in communication with each other or not, I how-
ever prefer that they communicate. In this way I can hold up liquid in one
receptacle until such time as the syphon shall start in another when it will be
drawn off. It is convenient at times rather than to form distinctly separate
receptacles to so partition or weir off a portion of one that the same purpose is
brought about and I may instead of a valve construct this weir or division of
material which will allow the liquid to pass through it sluggishly to bring about
the result I desire. I sometimes wish to discharge a fixed quantity irrespective
of the size of the receptacle, for this purpose I attach an additional nine to

page_text: my syphon, or to any syphon, allowing this to dip into an auxiliary receptacle;
this last has an inlet for liquid, the syphon will draw its supply from the
chamber in which it is placed, the additional pipe will also deliver liquid
through auxiliary receptacle to syphon, when this is withdrawn at a rate in
excess of the supply from inlet for liquid, air will be drawn into syphon and
syphonic action will be broken regardless of level of liquid in main chamber,
thus I ensure the discharge of a fixed quantity regardless of size of chamber
or rate of supply to it. These syphons may work automatically or I may
arrange them to work by hand.
041
T1
1000
Improvements in Flushing and Discharging Syphons and Apparatus
connected therewith.
SAMUEL HENRY ADAMS, Hydraulic Engineer, Cumbrae, Park Avenue, Harro-
gate, 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 -—–—
My improvements relate to the methods I employ to regulate the operation
of automatic or non automatic syphons. In one form for the purpose of my
invention it is desirable that such syphon shall have what is known as a deep
trap in order that the escape of confined air at a suitable time shall bring about
the starting of the syphon. I prefer to use with it a vent or air pipe which shall
dip into a pocket, bend, or suitably formed part of a syphon, liquid will remain
in this pocket after syphon discharge has taken place and the pipe will dip
so far in the liquid, then in operation as a tank fills in which such syphon is
placed the air within the syphon which cannot escape owing to the
trap at outgo, will be gradually put under pressure due to such rising liquid
and this pressure will cause liquid to mount up the vent or air pipe until in
the end the pressure within will overcome the resistance of the liquid in this
vent the liquid will be blown out: the escape of air from within syphon will
take place and syphonic action will follow; after the discharge this syphonic
action will be broken by the entry of air through the vent. This is one of the
chief objects of my vent pipe as by this means I can do away with the ordinary
sniff hole or substitutes and whether I use the pipe to start syphon or not I
may do so to break syphonic action. In some instances it is desirable not only
to withdraw the liquid from the receptacle in which a syphon is placed but also
from an adjoining receptacle or receptacles to achieve this I construct a syphon
of any desired type such syphon having a feed branch or arm which shall reach
into or be connected with the receptacle or receptacles it is desired to draw
from. I prefer to form an opening governed by a valve between the recep-
tacles that the liquid used in one may also supply another and that this opening
may be regulated to pass the liquid through from the main receptacle to the
auxiliary at any fixed rate. My syphon may be brought into operation by
liquid rising in the receptacle in which it is placed and it will when in operation
draw off liquid from that receptacle in which it is placed and from any other
into which the feed branch or arm already referred to may dip or be connected,
whether the receptacles are in communication with each other or not; I prefer
however that they communicate. In this way I can hold up liquid in one
receptacle until such time as the syphon shall start in another when it will be

page_text: rawn OII. It is convenient at times rather than to form distinctly separate
receptacles to partition or weir off a portion of one that the same purpose is
brought about and I may instead of a valve construct this weir or division of
material which will allow the liquid to pass through it sluggishly to bring about
the result I desire. I sometimes wish to discharge a fixed quantity irrespective
of the size of the receptacle, for this purpose I attach an additional pipe to
my syphon or to any syphon, allowing this to dip into an auxiliary receptacle;
this last has an inlet for liquid, the syphon will draw its supply from the
chamber in which it is placed, the additional pipe will also deliver liquid
through the auxiliary receptacle to syphon, when this is withdrawn at a rate in
excess of the supply through inlet for liquid, air will be drawn into syphon and
syphonic action will be broken regardless of level of liquid in main chamber,
thus I ensure the discharge of a fixed quantity regardless of the size of chamber
or rate of supply to it. These syphons may work automatically or I may
arrange them to work by hand.
Reference to my drawings will make the operation and construction of
apparatus and the general arrangement of the various parts clearly understood.
At Fig. 1 I shew a syphon a with deep trap b with side pipe c dome e and an
extension or overdraw arm d, the syphon is placed in receptacle A whilst
the overdraw. arm dips into receptacle B, liquid from B may pass through the
tap f, to receptacle A, and in operation B being full, liquid will pass through
tap to receptacle A, gradually filling it, as liquid rises it will close the mouth.
of pipe C, shutting in the required amount of air to cause syphonic action
when the proper level above syphon is reached. At this point the discharge.
will commence and the contents of B will be drawn over through and dis-
charged through syphon a with the contents of A.
from B to A by means of the tap f and in this way, hold back liquid in B for
I can regulate the supply
any desired time discharging it upon the expiry of this time automatically.
At Fig. 2, I shew a syphon also of the deep trap type, this syphon is fitted with
a vent pipe a which dips into a pocket attached to syphon cat f is the tap
supplying receptacle A from receptacle B and at g is my overdraw arm by means
of which I set up syphonic communication between receptacles A and B. In
operation receptacle B being full liquid will pass through tap f to receptacle A,
liquid will rise in A around syphon dome h the air contained within syphon
will be shut in between the liquid in deep trap k and that rising around dome C,
this pressure will be exerted upon the surface of liquid in pocket b and this
liquid will be forced up vent pipe a. The liquid in b and the dimensions of a
are so proportioned to each other that the liquid column which is formed in a
shall be unable to withstand the air pressure within syphon, when the starting
height is reached, with the result that this liquid column will be forced by the
excessive pressure, the pent up air will escape and syphonic action will be set
up, the contents of A will be discharged by means of syphon c (or valve m may
serve, and the contents of B, through syphon overdraw arm g will be delivered
o receptacle A, and so through syphon e finally discharged, in some cases I
rovide, a suitable exit for the air contained
hot hinder the operation of my apparatus.
in g in order that this air shall
which unlike those already described is not brought into operation by the
At Fig. 3, I shew a syphon
scape of air under pressure but by the gradual extraction of air from within
t, this extraction being caused by the passage through the interior of the
yphon of a given amount of liquid, the syphon a dips at its foot into a light
ater seal b. At c is shewn the projecting lip by means of which liquid is
aused to descend clear of the side of apparatus, at d is the dome, at e is an
uxiliary pipe passing down the interior of syphon to a depth below the under
de of dome d, this pipe dips into receptacle f, the latter has an opening g:
n operation the syphon being placed in a tank or suitable receptacle, will
ortly after the level of C is reached begin to discharge the contents of such

page_text: tank, at the same time the contents off will be drawn through pipe e, liquid
will enter orifice g and the time taken to withdraw the contents off will depend
upon the size of this orifice, when the liquid is withdrawn from f, the syphon
in lieu of liquid will suck air through the same pipe e and syphonic action
will cease regardless of the level of liquid in the syphon tank, in this way I
can draw a given volume out of a tank without regard to its contents or the
rate at which it may be supplied. At Fig. 4, I shew a syphon of same con-
struction as the last, but that the pipe e is omitted and an overdraw arm is
attached. In operation the syphon a coming into work draws off the contents
of A and through overdraw arm b the contents of B, the feed tap f serves the
same purpose as already described. It will be evident that I might attach
an overdraw arm or pipe to any suitable part of a syphon and that this need not
of necessity be placed at the summit and also that I may operate with clean
water in one receptacle and sewage in another, this is an advantage when it is
desired to flush sewers with sewage.
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:
1st. The use of a syphon however constructed which operating in one chamber
or receptacle shall also withdraw the liquid contents of another chamber or
receptacle.
2nd. The use in combination of two receptacles for liquid so arranged that
the liquid in the one shall be held back until the discharge of the other, through
syphonic apparatus, shall also bring about the discharge of the first.
3rd. The use in combination of two receptacles the liquid contents of which
shall be discharged through one syphonic apparatus, regardless of the source
of supply to each.
4th. The use in combination of two receptacles for liquid and an overdraw
syphon all so arranged that the lowering of the level of the liquid in one recep-
tacle by syphon, valve or other means shall bring about the discharge of the
other through the aforesaid overdraw arm or syphon as at Fig. 2.
5th. The use of a deep trap syphon with vent pipe which shall as air pressure
increases within the syphon first withstand and then allow it to escape to start
syphon and which shall after syphon discharge allow entry of air to break
syphonic action, the pipe serving the double purpose of starting and of stopping
the syphon.
Gth. The use of a syphon having a suction pipe dipping into a suitable recep-
tacle or tank so arranged that when liquid is withdrawn therefrom air shall
enter this pipe and so break syphonic action.
7th. The use of the apparatus shewn and described and apparatus having
similar functions whether operating in clean water, or in one receptacle con-
taining clean water and another sewage, or both containing sewage.
Dated this 92nd day of Aril 1000
SAMUEL HENRY, ADAMS.