Improvements in Gully Traps or Cesspools.
Year: 1899

page_text: Date of Application, 10th Feb., 1899-Accepted, 25th Mar., 1899
Improvements in Gully Traps or Cesspools.
I, JOHN HUTCHISON; of 106, -St. Vincent Lane, Glasgow, Mason, do hereby
declare the nature of this invention and in what manner the same is to be per- .
formed, to be particularly described and ascertained in and by the following state-
ment:
:-
This invention relates to gully traps or cesspools such as are generally used for
outside drainage and it has for its object to improve their construction.
At present gully traps or cesspools are generally so made that a good deal of
the space which should be available for collecting sand. pebbles, mud, etc, is lost
owing to the fact that the arrangement for trapping the water occupies a good tleal
of the space at the interior of the cesspool. Under my present invention the whole
of the trapping arrangement is kept outside the gully tap or cesspool so that the.
whole of the interior space of the cesspool is available for collecting sedimentary
matters
And in order that my said invention may be properly understood I have here-
unto appended three explanatory sheets of drawings, whereon,
Fig. 1 is a plan, Fig 2 a vertical section on the line A-A Fig. 1, Fig 3 a
vertical section on the line BB Fig 2, and Fig. 4 a vertical section on the.
line C-C, of one form of the gully trap or cesspool.
Fig. 5 is a plan, Fig. 6 a vertical section on the line D-D Fig 5, Fig. 7 a
vertical section on the line E, E, Fig. 6, and Fig S a vertical section on the
line F, F, Fig. 6, of another form of the gully-trap or cesspool.
Fig. 9 is a vertical section, Fig. 10 a plan, and Fig 11 à section on the line
G-G Fig. 9 and Fig. 12 a vertical section on the line H,-1, Fig. 9, of another
form of the gully tiap or cesspool.
Fig. 13 is a vertical section on the line II of Fig. 14; Fig. 14 a plan, and
Fig. 15 a vertical section on the line J, J, Fig. 13, of another form of the gully
trap or cesspool.
On the drawings the same reference letters wherever repeated indicate the same
or similar parts.
In carrying out my, present invention I preferably make the cesspool or gully
tiap a of a round-oi rectangular section and of earthenware or other suitable
material and I form in one piece with it a water sealing device in such manner
that no part of the device projects or extends into the cesspool itself with the result
that the whole of the interior of the cesspool is available for the collection of sedi-
mentary matters.
In the arrangement shown at Figs 1 to 4 an opening is made in the wall b
of the gully trap which latter is fashioned with an upwardly inclined funnel
which communicates and is made one with the outlet branch c At the junction
between the outlet c and the inclined bottom of the funnel an upwardly projecting
tongue or ridge d is made. This tongue projects above the level of the top of the
opening 6 so that, as a consequence, as shown plainly at Fig. 2, the upper part 63
of the wall b is made to form a scal. In Fig 2 the water level is indicated at c

page_text: and it will be seen that the part 3 projects down into the water owing to the fact
that the water level can rise up to the top of the tongue d The water as it flows
out of the cesspool or gully trap falls in a kind of cascade over the tongue into
the pipe c and from thence uns down into the drain.
It is important, in order to fully utilize the capacity of the cesspool, that the
tongue d be raised up as high as possible so as to bring the highest water level e
near to the top of the cesspool, but, as the raising of the tongue restricts the area
of the outlet dit is necessary to broaden out the part c', as shown at Figs. 1
and 3, so as to make the outlet d' equal or nearly equal to the area of the branch c.
f is a hand hole cover
In the arrangement Figs. 5 to 8 the outlet branch c runs right into the wall b
of the cesspool a but openings are cut in at each side as shown at d², The
parts d of the pipe form tongues, one at each side, over which the water from the
funnel can flow into the branch and from thence into the drain. The arrows
indicate the direction of the water flow. The part 63 forms the water seal as
before
In Figs. 9, 10, 11 and 12 a similar cesspool or gully trap to that at Figs. 1 to 4
but of rectangular section is shown. In this case the tongue d is curved on its
outlet side as shown at so that no matter may be able to collect at the back
of the tongue.
In Figs 13, 14 and 15 a cesspool or gully trap is shown having the outlet
branch carranged at one side. In this case one side of the funnel is made to
constitute the tongue d.
A cover of any suitable construction may be used for the cesspool.
It will be seen that this invention is a great improvement on its predecessors in
so far that no special syphon or like trapping device has to be provided in con-
junction with it and in view of the fact that the whole of the interior space of the
cesspool is available for collecting sedimentary matters.
In some cases the outlet branch or pipe might be bent or shaped so as to form
the equivalent of the tongue d
Having now particularly described and ascertamed the nature of my said mven-
tion and in what mannet the same is to be performed, I declare that what I con-
sider novel and desire to claim is :-
-
1 A gully trap or cesspool having an upwardly projecting outlet funnel, or its
equivalent, with a part of the wall of the cesspool arranged to form a downwardly
projecting seal and an upwardly projecting tongue, or equivalent, the height of
which determines the height to which the water can rise in the cesspool, sub-
stantially as set forth
2 The various constructions of gully traps or cesspools substantially as herein-
before described and shown on the drawings annexed.
- .1שח
Out 1
1
1000
H. D. FITZPATRICK,
100, Wellington Street, Glasgow,
Agent