Year: 1888

page_text: I, DAVID PUGH, of No. 88, Carlisle Street, Cardiff, in the County of Glamorgan,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to improvements in gully grids and traps.
In carrying it into effect, I form the body of the trap in any suitable material, and
of a sufficient depth. The discharge orifice is at one side, and at a level above the
bottom. It is furnished with a discharge pipe of the shape of an inverted U.
I provide two vessels of, preferably, the same shape as the trap body, but smaller,
and one sinaller than the other. Both have flanges by means of which they can be
suspended within the trap-body, thereby forming two annular spaces.
:
An opening is made in the side of the inner vessel about half way down, and one
also in the side of the middle vessel opposite to the opening in the inner vessel.
There will consequently be a cavity at the bottom of the inner vessel adapted to act
as a sediment trap; a water seal at the bottom of the trap, and a second one at the
bottom of the central vessel.
Suitable grooves and corresponding ridges may be adapted to the flanges, to act as
packings or supplementary seals; and a suitable locking device is provided to permit
of the removal of the smaller vessel for cleansing purposes and its retention in its
normal position against the freaks of the mischievously inclined.
Maa 1888
PHILLIPS & LEIGH,
22, Southampton Buildings, Chancery Lane,
Agents for the Applicant.

page_text: Improvements in Gulley Grids or Sanitary Traps.
I, DAVID PUGH, of No. 88, Carlisle Street, Cardiff, in the County of Glamorgan,
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 :-
My invention relates to improvements in gulley grids and traps; and in order that
it, and the means by which it is to be carried into practical effect, may be thoroughly
understood, I will now describe them in detail, referring in so doing to the accom-
panying drawing which is to be taken as part of this specification and read therewith:
A is the body of the trap; and B, the discharge, opening out therefrom above the
bottom of the trap, and of the shape, in side elevation, of an inverted U; thereby
providing a water-seal at the bottom of the trap-body.
The top of the trap-body is made with a double flange a adapted in respect of its
strength, widths, and thickness to furnish substantial seatings for the loose grate C
and the flanges of the two vessels or cups next described.
D is a deep cup smaller than the body A, but preferably of the same shape. It is
made with a flange d by which it is supported within the body A. at a small distance
therefrom.
The body-flange a has a groove a' formed in it; and the flange d has a ridge d'
formed on its under face adapted to enter the said groove when the cup D is in
position. The ridge d' is not so deep as the groove, thereby producing a water seal.
Any other device for packing the flange d gas-tight upon the body flange a
may be adopted.
E is an opening of a sufficient size in the side of the cup D, and about as near the
cup top as is illustrated in the figure.
F is a second flanged cup of the same shape as the cup D, but smaller. It is mado
with a flange having a ridge f" on its under side adapted to enter a groove d² in
the top of the flange d, thereby producing a second water seal between the two cups
in the same way as between the outer cup D and the trap body. This water seal may
also be replaced by any suitable packing device adapted to prevent the passage of gas
outwards between the two
cups.
G is an opening in the side of the cup F at a level lower than the opening E,
thereby producing a water-seal between the two cups. Both openings E and Gare
of the same size. When the two cups are dropped into the body, it is better that the
openings E and G should be opposite each other as shewn in the drawing, than that
they should be on the same side of the trap.
The cavity of the inner cup beneath the opening G acts as a sediment trap

page_text: I use any suitable locking device adapted to permit of the removal of the cup F
for cleaning the trap out, as well as to provide for its being secured in its normal
position the one illustrated-within the trap-body against the freaks of the 'mis-
chievously inclined.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
The combination of trap-body, discharge, sediment trap, and cups having openings
in the sides thereof and adapted to form two water-seals, as set forth.
PHILLIPS & LEIGH,
22, Southampton Buildings, Chancery Lane, W.C.,
Agents for the Applicant.