Improvements in Means for the Ventilation of the Discharge Pipes or Passages in Connection with Water Closets or other Sanitary Appliances.
Year: 1888

page_text: Date of Application, 28th Feb., 1888
Complete Specification Left, 28th Nov., 1888
Complete Specification Accepted, 15th Jan., 1889
Improvements in Means for the Ventilation of the Discharge Pipes
or Passages in Connection with Water Closets or other Sanitary
Appliances.
I, SAMUEL STEVENS HELLYER of 21 Newcastle Street, Strand in the County of
Middlesex, Engineer do hereby declare the nature of this Invention to be as
follows:-
The object of my Invention is to provide means whereby the ventilation of the
discharge pipes or passages in connection with water closets or other Sanitary
appliances is efficiently effected in a more economical manner than by the arrange-
ments hitherto used for the purpose.
According to my Invention instead of erecting separate pipes or passages to act as
the soil discharge or waste pipe and the syphon or trap ventilating shaft or pipe
respectively I employ but one pipe or passage which I divide into two passages one to
act as a soil discharge or waste pipe and the other as the ventilating shaft. At each
junction of the syphon or branch pipe from a closet or the like I make a communi-
cation from the ventilating portion of the pipe or passage to that constituting the soil
discharge or waste pipe and I make the discharge opening from the syphon or branch
pipe from the closet or the like into the soil discharge or waste pipe in such a manner
that the air way is never obstructed entirely by discharge passing down the soil
discharge or waste pipe-I prefer to divide the pipe or passage by means of a longi-
tudinal partition and at the places where the syphon or branch pipes are connected to
make the partition at such an angle or in such a position that it overlaps the lower
edge of the part of the partition in the length of pipe or passage above it but with a
space between for the passage of air into the soil pipe or passage and thence through
the discharge opening into the syphon or branch so as to prevent the formation of a
vacuum in the syphon or branch and consequently prevent the liquid seal of the
syphon being drawn over to destroy the seal.
The Invention is applicable to the pipes or passages from Sanitary appliances
generally such as water closets, sinks, baths, lavatory basins and such like appliances.
Dated this 28th day of February 1008
J. H. JOHNSON & Co.,
47, Lincoln's Inn Fields, London, W.C.,
Agents.

page_text: COMPLETE SPECIFICATION.
Improvements in Means for the Ventilation of the Discharge Pipes
or Passages in Connection with Water Closets or other Sanitary
Appliances.
I, SAMUEL STEVENS HELLYER of 21 Newcastle Street Strand in the County of
Middlesex Engineer do hereby declare the nature of this invention and in what
manner the same is to be performed to be particularly described and ascertained in
and by the following statement:—
The object of my Invention is to provide means whereby the ventilation of the
discharge pipes or passages in connection with water closets or other sanitary
appliances is efficiently effected in a more economical manner than by the arrange-
ments hitherto used for the purpose.
According to my Invention instead of erecting separate pipes or passages to act as
the soil discharge or waste pipe and the syphon or trap ventilating shaft or pipe
respectively I employ but one pipe or passage which I divide into two passages one to
act as a soil discharge or waste pipe and the other as the ventilating shaft or pipe.
At or near each junction of the syphon or branch pipe from a closet or the like I make
a communication from the ventilating portion of the pipe or passage to that con-
stituting the soil discharge or waste pipe and I make the discharge opening from the
syphon or branch pipe from the closet or the like into the soil discharge or waste pipe
in such a manner that the passage for air is never obstructed entirely by discharges
passing down the soil discharge or waste pipe or through the syphon or branch pipe-
I prefer to divide the pipe or passage by means of a longitudinal partition and at or
near the places where the syphon or branch pipes are connected to make the partition
at such an angle or in such a position that it overlaps the lower edge of the part of the
partition in the length of pipe or passage above it but with a space between for the
passage of air into the soil pipe or passage and thence through the discharge
opening into the syphon or branch so as to prevent the formation of a vacuum in
the syphon or branch and consequently prevent the liquid seal of the syphon being
drawn over to destroy the seal.
The Invention is applicable to the pipes or passages from sanitary apliances
generally such as water closets sinks baths lavatory basins urinals and such like
appliances.
And in order that my said Invention may be fully understood I shall now proceed
more particularly to describe the same and for that purpose shall refer to the several
figures on the annexed sheet of drawings the same letters of reference indicating
corresponding parts in all the Figures and 2 are vertical sections at right angles to
each other and Figure 3 is a sectional plan of a portion of a pipe provided with my
Invention A A2 are portions of a pipe or passage passing to any desired height or in
any desired direction in accordance with the number and position of the closets
sinks or the like to be ventilated. B is one of the syphons or branch pipes from the
closet sink or the like. Each length of the pipe or passage A A2 is furnished with a

page_text: longitudinal partition those shown being marked a a². They are of such a length
that when the lengths of pipe are put together the said partitions overlap but leave a
space between the top portion of one and the bottom portion of the adjacent one as
shewn at b. The part at c is enlarged or rounded off so as to prevent the matter
discharged from completely obstructing the passage by which air can pass into the
syphon or the like. Instead of or in addition to making the enlarged opening at c
there may be a bye pass passage or pipe such for instance as is shown at d in
Figures 2 and 3.
When matter is discharged from the closet or the like it induces a current of air
down the pipe or passage A A' and the formation of a vacuum in the syphon or the
like is prevented by air entering by the opening 6 or bye pass d or both.
Such openings as may be below the point or points of discharge from the syphon
or syphons or the like also allow air forced down by the discharge to pass into the
part constituting the air passage to return into the discharge portion of the pipe or
passage by the opening or openings b which may be above the points or points of
discharge and so augment the air supply. It will be understood that openings as at b
may be at any convenient positions in the length of the pipe or passage and are not
necessarily restricted to being each opposite a syphon or branch.
The pipes or passages and partitions may be made of any convenient shape instead
of the rectangular shape shown on the drawings and they may be made of any suitable
material. When the material is iron for instance it may be cast with the partitions
and they may then be inclined as shown. If the material is of a nature which can be
drawn such as lead for instance, the partitions may be made parallel with the pipe
sections so that the pipes or passages and partitions can be conveniently formed
by dies.
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 combination in one pipe or passage, of soil discharge or waste ways and
air ways with communicating air spaces substantially as and for the purposes
hereinbefore described.
2nd. The combination with a pipe or passage of partitions arranged as described
and illustrated so as to form two passages or ways one for the discharge and the
other for air with communications or openings from the air way to the discharge
way or the syphon or the like or both as described and illustrated.
Dated this 28th day of November 1888.