Improvements in Gully Catch-pits and Traps.
Year: 1893

page_text: Date of Application, 13th Nov., 1893—Accepted, 16th Dec., 1893
COMPLETE SPECIFICATION.
Improvements in Gully Catch-pits and Traps.
We, THE PATENT VICTORIA STONE COMPANY, LIMITED, of 283*, Kingsland
Road, Manufacturers, and JOHN PHILLIPS, of 25, Disraeli Road, Putney, Civil
Engineer, both in the County of London, 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 :-
This invention relates to gully catch-pits and traps of the kind described in the
Specification of Letters Patent No. 12763 of 1892 granted to John Phillips, and
wherein the trap is so arranged that the water seal thereof is always intact
notwithstanding the fact that the catch-pit is empty.
According to the present invention the trap, instead of being arranged upon one
side of the catch-pit, in which position it projects considerably under the roadway,
is formed upon one end of the said catch-pit so that it is in alignment with the
latter and is preferably made with only a single dip partition. The chamber of the
trap communicating with the catch-pit is on the side adjacent to the pavement
the other chamber being adjacent to the sewer so that the discharge pipe may
extend directly towards the sewer.
The chamber of the trap in communication with the sewer is advantageously
provided with a removable cover so that in case of necessity the hand of a work-
man or a clearing rod may be introduced and above and around such cover is a well
closed at the top by a hinged lid. The guard or fender which is employed for
preventing any floating substances from entering the trap is preferably arranged
across the corner of the catch-pit opposite the opening between the latter and
the trap.
To enable the said invention to be fully understood we will describe the same by
reference to the accompanying drawing, in which :-
Figure 1 is a plan view of a catch-pit and trap constructed according to the said
invention.
Figure 2 is a section on the line 2-2, Figure 1, and,
Figure 3 is a section on the line 3-3, Figure 2.
a is the catch-pit and b is the trap, which catch-pit and trap are formed or
moulded in one piece of fire-clay, stone-ware, iron, a composition of Portland
cement and crushed and washed flint, quartz or granite siftings or a composition
known as
"Victoria Stone"; the catch-pit may be oblong, square, elliptical,
circular or of any other suitable shape in horizontal section with a flat or curved
bottom, with vertical or inclined sides, and with all the internal angles and corners
curved so that no deposit may accumulate therein. In practice we prefer to make
the catch-pit oblong in horizontal section as we find that when made of this shape
it can be emptied more expeditiously with a scoop than if made of any other shape.
The top of the catch-pit may be made flat in order that a cast iron cover c and frame d
with a grating e therein may be placed upon the same; or it may be formed with a
socket to receive a cast iron frame and grating.
The trap b which is placed on the end of the catch-pit is divided into two com-
partments f, g by the dip partition h, the chamber f communicating with the catch-
pit through the opening i and the chamber g communicating with the discharge
outlet j, the said outlet being in the form of a spigot pipe adapted to fit into the
Bocket of the sewer pipe.
It will be understood that as described in the Specification of the said former
Patent the water level in the trap is below that in the catch-pit so that the water
from the catch-pit falls as a cascade into the trap and causes a commotion in the

page_text: latter for preventing sedimentary matter from depositing and accumulating in the
trap.
kis the guard or fender for preventing straw, sticks or other floating substances or
refuse falling into the catch-pit from collecting across the opening i or passing into the
trap, the said fender or guard being arranged across the corner of the catch-pit in
such a position that no solid matter falling through the grating can drop behind
the said fender. The fender is represented as being carried in grooves 1, 1, formed
in blocks m, m fixed to the sides of the catch-pit but grooves may be formed on the
sides of the catch-pit itself. n is the removable cover applied to the compartment g
of the trap and the removal of which enables the hand of a workman or a clearing
rod to be inserted. o is the well surrounding the cover n and provided with a
hinged lid p level with the surface of the paved gutter or roadway.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. The combined gully catch-pit and trap having the trap arranged upon one end
of the catch-pit in such a manner that it will be beneath the paving of the gutter,
substantially as described.
2. The manufacture and use of a combined gully catch-pit and trap, substantially
as hereinbefore described and illustrated in the accompanying drawing.
Da
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicants.