Year: 1885

page_text: I, JOSEPH GORDON 161 London Road Leicester, M. Inst. C.E. do hereby declare
the nature of this invention to be as follows:-
The object of my Invention is to effect improvements in the construction of
disconnecting syphons so as to avoid the prohibitory cost of those at present in
the Market; their complicated forms; their unsuitable length which frequently
renders it necessary to cut pipes to form connections where it is desired to insert
them in existing drains; the difficulty on account of their length and construction
of fitting and adapting them to the fall of existing drains without the expensive
alterations to the latter; also their defective construction as self cleaning syphons.
My invention therefore consists of disconnecting syphons having one or more
branches and each branch opening may be of the same size or may vary in size as
desired and may be inserted preferably at an angle of 60 degrees. Thus the
vertical or downright opening may be 6" and the influx and outflow opening 4″.
The branch or conduct pipes appertaining to the foregoing syphon may be of
any suitable size and they may possess one or more sockets or openings and may
vary in size or diameter as required and may be suitably rounded at the socket
points.
It will therefore be seen that by providing a syphon having say 2 branches a
closet or main drain and two branches can be disconnected by the same syphon at
the same level and without loss of depth, and that one branch may provide for 6"
and the other 4" pipes.
The length of my syphon is preferably two feet so that it may be readily
applied to existing drains by removing an ordinary pipe and also that it may be
more readily adapted to a variety of gradients in existing drains, but I may when
necessary vary the length of my syphons.
In constructing my said syphons I prefer to allow a fall of 1 in 10 in the drain
thereby providing for the desired drop at the ingoing end. Thus it is obvious that
a 2 ft syphon would afford a drop of over 2" at the inlet end.
The interior of the syphons may also be suitably rounded so as not to present
resisting surfaces and that the water may fall more readily into its proper course
in the syphon and that it may not directly and forcibly shoot against the
opposite side.
By this provision the water is practically uninterrupted in its flow and tends at
each flush to carry off or drive out any floating matter.

page_text: The trap itself or dip forming the trap may be rounded off to a radius of
say 1 inches forming a half circle of 3" diameter to ensure smoothness and
evenness of surface and to avoid lessening the depth of the trap.
It will therefore be seen that with a treble-branch syphon as many as six drains
may be brought to one syphon, one inspection shaft only be necessary and one
outlay for the shaft grid and other accessories.
Improvements in or Connected with Syphon Drain Traps.
I JOSEPH GORDON, London Road Leicester M. Inst. C.E. do hereby declare the
nature of my invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
The object of my invention is to effect improvements in the construction of
disconnecting syphons so as to avoid the prohibitory cost of those at present in
the market; their complicated forms; their unsuitable length which frequently
renders it necessary to cut pipes to form connections where it is desired to insert
them in existing drains; the difficulty on account of their length and construction;
of fitting and adapting them to the fall of existing drains without expensive
alterations to the latter; also their defective construction as self cleaning syphons.
My invention therefore consists of disconnecting syphons having one or more
branches and each branch opening may be of the same size or may vary in size as
desired and may be inserted preferably at an angle of 60 degrees.
Thus the vertical or downright opening may be 6" and the influx and outflow
openings 4".
The branch or conduct pipes appertaining to the foregoing syphon may be of
any suitable size and they may possess one or more sockets or openings and may
vary in size or diameter as required and may be suitably rounded at the socket
point.
It will therefore be seen that by providing a syphon having say two branches,
a closet or main drain and two branches can be disconnected by the same syphon
at the same level and without loss of depth and that one branch may provide
for 6" and the other 4" pipe.
The length of my syphon is preferably two feet so that it may be readily applied
to existing drains by removing an ordinary pipe and also that it may be more
readily adapted to a variety of gradients in existing drains; but I
necessary vary the length of my syphons,
L
may when

page_text: In constructing my said syphons I prefer to allow a fall of 1 in 10 in the drain
thereby providing for the desired-drop at the ingoing end. Thus it is obvious
that a 2 ft syphon would afford a drop of over 2" at the inlet end.
The interior of the syphons may also be suitably rounded so as not to present
resisting surfaces and that the water may fall more readily into its proper course
in the syphon and that it may not directly and forcibly shoot against the
opposite side.
By this provision the water is practically uninterrupted in its flow and tends at
each flush to carry off or drive out any floating matter.
The trap itself or dip forming the trap may be rounded off to a radius of
say 1" inches forming a half circle of 3" diameter to ensure smoothness and
evenness of surface and to avoid lessening the depth of the trap.
It will therefore be seen that with a treble branch syphon as many as six drains
may be brought to one syphon, one inspection shaft only being necessary and one
outlay for the shaft grid and other accessories.
In the accompanying drawings Figure 1 is a section of a single syphon the
dotted outline of brick chamber, grid and downright pipe being intended to shew
the position of the syphon from the surface or ground level, additional pipes being
used according to the depth at which it may be necessary to place the syphon.
A is the vertical or downright opening which may be of any desired size and
the usual inlet opening B and the outlet C may also vary in size as desired.
The dotted line C₁ shews the fall or gradient preferably 1 in 10 in the drain so
that a 2 ft syphon would afford a drop of nearly 24" between the inlet and outlet
thus securing additional force to expel floating matter and cleanse the syphon.
The straight lines in the dip or base of the trap shew the water level within.
The interior of the syphon is rounded so as to avoid resisting surfaces and the
dip or trap D for a 2ft syphon may be rounded preferably to a radius of 14"
forming a half circle of 3" diameter.
A suitable pedestal E may be provided to give a firm and level base.
Figure 2 is a plan of a single syphon as in Figure 1. A being the downright
opening B the inlet and C the outlet. The dotted lines are conduit pipes used in
connection therewith.
Figure 3 is a plan of a double branched syphon of which Figure 4 is a section.
A being the downright opening B the inlet and C the outlet opening, B¹ a branch
pipe or socket forming part of the syphon and intended to receive the drainage
from another conduit pipe which entering above the water seal is protected by it
just the same as the first described inlet B.
Figure 4 is a section of syphon A being the downright opening and B and B¹
the inlets and C the outlet and D the dip or trap already shown in Figure 1 all
the openings being of the same size.
The dotted outlines above the syphon are downright pipes with one or more
branches so that it will be seen from this figure and from Figure 5 that as many
as six drains and even more may easily be brought to one syphon the one water
seal protecting them all.
Figure 5 is similar to Fig. 3 but has three radiating branches instead of two and
the branches are not all of the same size.
Figure 6 is a vertical section of a syphon with downright or vertical opening A
of larger size than the inlet opening B, the outlet C or the additional pipe or
socket opening B¹. D is the dip or trap as before.
Figure 7 is a plan of syphon shewn in Figure 6. 'A being the vertical opening
B the inlet, C the outlet and B¹ the branch socket opening.
Figure 8 is a plan of syphon with the inflow opening B larger than the
branches B the outflow C being a corresponding size to B. A is the downright
or vertical opening.
I do not bind myself to any special size, proportion or material as these
be varied as required.
may all

page_text: 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:-
1. A syphon or stench trap having in addition to the ordinary inlet B one or
more inlet branches such as B¹ protected by the same water seal substantially as
specified.
2. The combination in a syphon or stench trap of an inlet such as B an outlet
such as C in line with, but at a lower level than B, a downright or vertical
opening such as A and a water seal protecting both inlets A & B substantially as
specified.
3. The construction of a syphon with inlet B and outlet C. so arranged as to
allow of the syphon being fixed to a gradient with a proper dip to the trap and
giving at the same time a fall to the incoming drain sufficient to insure the
cleansing of the syphon substantially as specified.