IMPROVEMENTS IN THE CONSTRUCTION OF GULLY TRAPS
Year: 1885

page_text: 15
I SAMUEL KIRBY of 61 Canterbury Road, Kilburn in the County of Middlesex
Builder do hereby declare the nature of my said Invention for IMPROVEMENTS
IN THE CONSTRUCTION OF GULLY TRAPS to be as follows:-
. :
The object of my invention is to construct gully traps in an improved manner,
and with increased facility for obtaining access to the same. in case of stoppage.
J construct my improved gully traps preferably of earthenware, but they may be
made of any other suitable material.
:
When the gully trap is required to take the ordinary house drainage, such as
that flowing from the sink, rain-pipe, and bath, as well as the surface or overflow.
drainage from outside the house: I form a combination gully trap, the part next to
the house being made a few inches higher than the front of the trap. This raised
portion receives the house drainage before mentioned, and the front of the trap;
receives, the surface or overflow water. Both the receptacles are fitted with
gratings, and the drainage from both also enters one common chamber, from whence
it issues, by a curved pipe, leading to the drain. In the curve of this pipe; (which:
would ordinarily be just under the footway) I:provide a covered; way, consisting
of an opening of an elliptical form, in which I fit a moveable plate or cover, which
fits the same, flush, (inside and out) with the material forming the syphon The.
cover is fitted into the opening and made air and water tight. with red and white
lead.
¡
ال
One or more air holes is or are provided in the side or sides of the trap for
ventilation, (if required) such holes being plugged or stopped if not required. The
entrance pipes may be led to the top, sides, or back, as required; necessary openings
being provided for that purpose.
.
i
When it is not necessary to provide for the reception of the outside overflow or:
surface drainage, the combination form of trap is unnecessary, and the more simple
form is adopted, without the front opening and grating the connection to the drain
is, however, made in precisely the same manner as that above described, with
respect to the combination trap.
.)
My improved form of trap does not require any brickwork for its erection, and:
no shoes are needed. Also damp is entirely prevented from being communicated
from the trap to the building.
I

page_text: COMIDEID
DEECIFICATION.
I, SAMUEL KIRBY, of 61 Canterbury Road, Kilburn, in the County of Middlesex,
Builder, do hereby declare the nature of my said Invention for "IMPROVEMENTS
IN THE CONSTRUCTION. OF GULLY TRAPS," and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
ว
: The object of my invention is to construct gully traps in an improved manner,
and with increased facility for obtaining access to the same in case of stoppage.
I construct my improved gully traps preferably of earthenware, but they may
be made of any other suitable material.
When the gully trap is required to take the ordinary house drainage, such as that
flowing from the sink, rain pipe, and bath, as well as the surface or overflow
drainage from outside the house. I form a combination gully trap, the part next
to the house being made a few inches higher than the front of the trap. This
raised portion receives the house drainage before mentioned and the front of the
trap receives the surface or overflow water. Both the receptacles are fitted with
gratings, and the drainage from both also enters one common chamber, from whence
it issues, by a curved pipe, leading to the drain. In the curve of this pipe, (which
would ordinarily be just under the footway) I provide a covered way consisting of
an opening of an elliptical form, in which I fit a moveable plate or cover, which fits
the same, flush, (inside and out) with the material forming the syphon. The cover
is fitted into the opening and made air and water tight with red and white
lead,
One or more air holes is or are provided in the side or sides of the trap for
ventilation, (if required) such holes being plugged or stopped if not required.
.
The entrance pipes may be led to the top, sides or back, as required; necessary
openings being provided for that purpose.
When it is not necessary to provide for the reception of the outside overflow or
surface drainage, the combination form of trap is unnecessary, and the more simple
form is adopted, without the front opening and grating: the connection to the drain
is, however, made in precisely the same manner as that above described, with
respect to the combination trap.
My improved form of trap does not require any brickwork for its erection, and
no shoes are needed. Also damp is entirely prevented from being communicated
from the trap to the building.
And in order that my said invention may be more particularly described and
ascertained, reference is hereby made to the accompanying drawings, in which-
similar letters of reference indicate corresponding parts..
Fig. 1 is a perspective view of an ordinary gully trap, to which my improved
delivery pipe may be fitted at a; which delivery pipe is shewn in section in Fig. 9.
The special feature of this delivery pipe is that it may be fitted to the nozzle a, so
as to turn in any direction that may be required. The covered way or opening is
shewn at p in Fig. 9 consisting of an elliptical cover fitting into a corresponding
opening, flush outside and inside.

page_text: Fig. 2 is a perspective view of one form of my improved gully trap, Fig. 5 being
a vertical section of Fig. 2. The lower portion of the trap, b, is built up flush with
the foot pavement to take the surface drainage. The upper level c is arranged to
take the house drainage; the usual gratings being fitted to each opening. d is the
ventilating opening, to which the ventilating pipe is fitted for conveying away the
foul air.
The trap has openings provided for attaching my improved delivery pipes, as
at e e, Figs 2 and 5; or a fixed nozzle e¹ (Fig. 2) may be fitted, if preferred.
Fig. 3 is a perspective view of a larger form and arrangement of my improved
gully trap, in which an additional passage is provided for receiving the foot of the
soil or lower closet pipes at f.
Fig. 4 is a section on the line y z of Fig. 3, in which the course of the SY syphon
from the closet pipe at fis,shewn in solid lines. A curved opening or pipe k, leading
in a diagonal direction from the body of the trap into the pipe g is also shewn in
dotted lines in Fig. 4, and again in Fig. 6.
An opening is made at h, (Figs 3 and 4) at the bottom of which an air tight
cover is fitted. This opening is for the purpose of gaining access to the drain to
remove any obstruction therefrom by hand.
Fig. 6 is a sectional view on the line wx of Fig. 3. In this view the ventilating
shaft d is shewn; also the drain pipe f, and a junction from the drain pipe to the
ventilating pipe. m is an additional opening provided for lower closets (if
necessary) An additional pipe n may be fitted to the opening at o, if required, as
a fresh air inlet, such opening being covered as usual if the pipe n is not
required.
Fig. 7 is a section and Fig. 8 is a top view of a junction fitted with my improved
opening and cover, which will be understood from the drawings, Fig. 9 shewing the
application of the same opening and cover to a curved pipe.
I prefer to glaze the syphon g, and all other parts of the improved gully which
come in contact with soil, unless otherwise required to be treated.
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 The manufacture and use of combination gully traps, having a portion thereof
raised above the level of the ground to receive the drainage from the house, and a
lével portion to receive the surface drainage, substantially as described and shewn
on the drawings.
and
2 In the construction of gully traps, the arrangement of the SY syphon
air shaft d either alone or in combination with the dram pipe f, substantially as
described and shewn on the drawings.
3 In the construction of gully traps, and in combination therewith, the use of
the reversible S arm shewn in Fig. 9 of the drawings and fitted with the opening p
with or without the flush cover thereto substantially as described.
4 The general arrangement and construction of gully traps, with their several
accessories together forming my improvements in the construction of gully traps,
substantially as herein before described and shewn on the drawings.